From 5131cc731c671a9133b6b1aac665a60c5ef7b81b Mon Sep 17 00:00:00 2001 From: Thomas Haemmerle Date: Sun, 3 Oct 2021 22:13:55 +0200 Subject: [PATCH 001/172] usb: gadget: uvc: fix multiple opens commit 72ee48ee8925446eaeda8e4ef3f2eb16b4a93d2a upstream. Currently, the UVC function is activated when open on the corresponding v4l2 device is called. On another open the activation of the function fails since the deactivation counter in `usb_function_activate` equals 0. However the error is not returned to userspace since the open of the v4l2 device is successful. On a close the function is deactivated (since deactivation counter still equals 0) and the video is disabled in `uvc_v4l2_release`, although the UVC application potentially is streaming. Move activation of UVC function to subscription on UVC_EVENT_SETUP because there we can guarantee for a userspace application utilizing UVC. Block subscription on UVC_EVENT_SETUP while another application already is subscribed to it, indicated by `bool func_connected` in `struct uvc_device`. Extend the `struct uvc_file_handle` with member `bool is_uvc_app_handle` to tag it as the handle used by the userspace UVC application. With this a process is able to check capabilities of the v4l2 device without deactivating the function for the actual UVC application. Reviewed-By: Michael Tretter Reviewed-by: Laurent Pinchart Signed-off-by: Thomas Haemmerle Signed-off-by: Michael Tretter Signed-off-by: Michael Grzeschik Acked-by: Felipe Balbi Link: https://lore.kernel.org/r/20211003201355.24081-1-m.grzeschik@pengutronix.de Cc: Dan Vacura Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/uvc.h | 2 ++ drivers/usb/gadget/function/uvc_v4l2.c | 49 ++++++++++++++++++++++---- 2 files changed, 44 insertions(+), 7 deletions(-) diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h index 255a61bd6a6a..9d5f17b551bb 100644 --- a/drivers/usb/gadget/function/uvc.h +++ b/drivers/usb/gadget/function/uvc.h @@ -126,6 +126,7 @@ struct uvc_device { enum uvc_state state; struct usb_function func; struct uvc_video video; + bool func_connected; /* Descriptors */ struct { @@ -156,6 +157,7 @@ static inline struct uvc_device *to_uvc(struct usb_function *f) struct uvc_file_handle { struct v4l2_fh vfh; struct uvc_video *device; + bool is_uvc_app_handle; }; #define to_uvc_file_handle(handle) \ diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index 4ca89eab6159..197c26f7aec6 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -227,17 +227,55 @@ static int uvc_v4l2_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub) { + struct uvc_device *uvc = video_get_drvdata(fh->vdev); + struct uvc_file_handle *handle = to_uvc_file_handle(fh); + int ret; + if (sub->type < UVC_EVENT_FIRST || sub->type > UVC_EVENT_LAST) return -EINVAL; - return v4l2_event_subscribe(fh, sub, 2, NULL); + if (sub->type == UVC_EVENT_SETUP && uvc->func_connected) + return -EBUSY; + + ret = v4l2_event_subscribe(fh, sub, 2, NULL); + if (ret < 0) + return ret; + + if (sub->type == UVC_EVENT_SETUP) { + uvc->func_connected = true; + handle->is_uvc_app_handle = true; + uvc_function_connect(uvc); + } + + return 0; +} + +static void uvc_v4l2_disable(struct uvc_device *uvc) +{ + uvc->func_connected = false; + uvc_function_disconnect(uvc); + uvcg_video_enable(&uvc->video, 0); + uvcg_free_buffers(&uvc->video.queue); } static int uvc_v4l2_unsubscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub) { - return v4l2_event_unsubscribe(fh, sub); + struct uvc_device *uvc = video_get_drvdata(fh->vdev); + struct uvc_file_handle *handle = to_uvc_file_handle(fh); + int ret; + + ret = v4l2_event_unsubscribe(fh, sub); + if (ret < 0) + return ret; + + if (sub->type == UVC_EVENT_SETUP && handle->is_uvc_app_handle) { + uvc_v4l2_disable(uvc); + handle->is_uvc_app_handle = false; + } + + return 0; } static long @@ -292,7 +330,6 @@ uvc_v4l2_open(struct file *file) handle->device = &uvc->video; file->private_data = &handle->vfh; - uvc_function_connect(uvc); return 0; } @@ -304,11 +341,9 @@ uvc_v4l2_release(struct file *file) struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data); struct uvc_video *video = handle->device; - uvc_function_disconnect(uvc); - mutex_lock(&video->mutex); - uvcg_video_enable(video, 0); - uvcg_free_buffers(&video->queue); + if (handle->is_uvc_app_handle) + uvc_v4l2_disable(uvc); mutex_unlock(&video->mutex); file->private_data = NULL; From c7b9eca23ea2bcf4d19bc0a05fc37ddf77221e48 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 28 Nov 2021 22:07:48 +0100 Subject: [PATCH 002/172] HID: quirks: Add quirk for the Microsoft Surface 3 type-cover commit 9003fbe0f3674b972f56fa7e6bf3ac9dbfc4d0ec upstream. Add a HID_QUIRK_NO_INIT_REPORTS quirk for the Microsoft Surface 3 (non pro) type-cover. Trying to init the reports seems to confuse the type-cover and causes 2 issues: 1. Despite hid-multitouch sending the command to switch the touchpad to multitouch mode, it keeps sending events on the mouse emulation interface. 2. The touchpad completely stops sending events after a reboot. Adding the HID_QUIRK_NO_INIT_REPORTS quirk fixes both issues. Signed-off-by: Hans de Goede Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-quirks.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 3706c635b12e..a5531c402f23 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -881,6 +881,7 @@ #define USB_DEVICE_ID_MS_TOUCH_COVER_2 0x07a7 #define USB_DEVICE_ID_MS_TYPE_COVER_2 0x07a9 #define USB_DEVICE_ID_MS_POWER_COVER 0x07da +#define USB_DEVICE_ID_MS_SURFACE3_COVER 0x07de #define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER 0x02fd #define USB_DEVICE_ID_MS_PIXART_MOUSE 0x00cb #define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS 0x02e0 diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 2e104682c22b..65b711476174 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -124,6 +124,7 @@ static const struct hid_device_id hid_quirks[] = { { HID_USB_DEVICE(USB_VENDOR_ID_MCS, USB_DEVICE_ID_MCS_GAMEPADBLOCK), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PIXART_MOUSE), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER), HID_QUIRK_NO_INIT_REPORTS }, + { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE3_COVER), HID_QUIRK_NO_INIT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE_PRO_2), HID_QUIRK_NO_INIT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2), HID_QUIRK_NO_INIT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2), HID_QUIRK_NO_INIT_REPORTS }, From d38f90239254428dc52be3597ea7920b4d39af95 Mon Sep 17 00:00:00 2001 From: xiazhengqiao Date: Fri, 3 Dec 2021 11:01:19 +0800 Subject: [PATCH 003/172] HID: google: add eel USB id commit caff009098e6cf59fd6ac21c3a3befcc854978b4 upstream. Add one additional hammer-like device. Signed-off-by: xiazhengqiao Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211203030119.28612-1-xiazhengqiao@huaqin.corp-partner.google.com Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-google-hammer.c | 2 ++ drivers/hid/hid-ids.h | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c index 8123b871a3eb..0403beb3104b 100644 --- a/drivers/hid/hid-google-hammer.c +++ b/drivers/hid/hid-google-hammer.c @@ -585,6 +585,8 @@ static void hammer_remove(struct hid_device *hdev) static const struct hid_device_id hammer_devices[] = { { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_DON) }, + { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, + USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_EEL) }, { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_HAMMER) }, { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index a5531c402f23..cf405237e558 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -496,6 +496,7 @@ #define USB_DEVICE_ID_GOOGLE_MAGNEMITE 0x503d #define USB_DEVICE_ID_GOOGLE_MOONBALL 0x5044 #define USB_DEVICE_ID_GOOGLE_DON 0x5050 +#define USB_DEVICE_ID_GOOGLE_EEL 0x5057 #define USB_VENDOR_ID_GOTOP 0x08f2 #define USB_DEVICE_ID_SUPER_Q2 0x007f From 6892f8e27d6e32e16260a5c3cc24ca96ed9ec336 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= Date: Tue, 30 Nov 2021 07:01:17 +0100 Subject: [PATCH 004/172] HID: intel-ish-hid: ipc: only enable IRQ wakeup when requested MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 086e81f6b90e41a07a1a885bb11e93daa6915747 upstream. Fixes spurious wakeups from s0ix on Lenovo ThinkPad X1 Cargon Gen 9 on lid close. These wakeups are generated by interrupts from the ISH on changes to the lid status. By disabling the wake IRQ from the ISH we inhibit these spurious wakeups while keeping the resume from LID open through the ACPI interrupt. Reports on the Lenovo forums indicate that Lenovo ThinkPad X1 Yoga Gen6 is also affected. Fixes: ae02e5d40d5f ("HID: intel-ish-hid: ipc layer") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214855 Signed-off-by: Thomas Weißschuh Acked-by: Srinivas Pandruvada Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211130060117.3026-1-linux@weissschuh.net Signed-off-by: Greg Kroah-Hartman --- drivers/hid/intel-ish-hid/ipc/pci-ish.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c index 1c5039081db2..8e9d9450cb83 100644 --- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c +++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c @@ -266,7 +266,8 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work) if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag && IPC_IS_ISH_ILUP(fwsts)) { - disable_irq_wake(pdev->irq); + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(pdev->irq); ish_set_host_ready(dev); @@ -337,7 +338,8 @@ static int __maybe_unused ish_suspend(struct device *device) */ pci_save_state(pdev); - enable_irq_wake(pdev->irq); + if (device_may_wakeup(&pdev->dev)) + enable_irq_wake(pdev->irq); } } else { /* From e1e21632a4c4d2f85587e204939883ce59d18447 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 1 Dec 2021 19:35:01 +0100 Subject: [PATCH 005/172] HID: add hid_is_usb() function to make it simpler for USB detection commit f83baa0cb6cfc92ebaf7f9d3a99d7e34f2e77a8a upstream. A number of HID drivers already call hid_is_using_ll_driver() but only for the detection of if this is a USB device or not. Make this more obvious by creating hid_is_usb() and calling the function that way. Also converts the existing hid_is_using_ll_driver() functions to use the new call. Cc: Jiri Kosina Cc: Benjamin Tissoires Cc: linux-input@vger.kernel.org Cc: stable@vger.kernel.org Tested-by: Benjamin Tissoires Signed-off-by: Greg Kroah-Hartman Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211201183503.2373082-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-asus.c | 6 ++---- drivers/hid/hid-logitech-dj.c | 2 +- drivers/hid/hid-u2fzero.c | 2 +- drivers/hid/hid-uclogic-params.c | 3 +-- drivers/hid/wacom_sys.c | 2 +- include/linux/hid.h | 5 +++++ 6 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c index f3ecddc519ee..08c9a9a60ae4 100644 --- a/drivers/hid/hid-asus.c +++ b/drivers/hid/hid-asus.c @@ -1028,8 +1028,7 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) if (drvdata->quirks & QUIRK_IS_MULTITOUCH) drvdata->tp = &asus_i2c_tp; - if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && - hid_is_using_ll_driver(hdev, &usb_hid_driver)) { + if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) { @@ -1057,8 +1056,7 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) drvdata->tp = &asus_t100chi_tp; } - if ((drvdata->quirks & QUIRK_MEDION_E1239T) && - hid_is_using_ll_driver(hdev, &usb_hid_driver)) { + if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) { struct usb_host_interface *alt = to_usb_interface(hdev->dev.parent)->altsetting; diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c index a0017b010c34..7106b921b53c 100644 --- a/drivers/hid/hid-logitech-dj.c +++ b/drivers/hid/hid-logitech-dj.c @@ -1777,7 +1777,7 @@ static int logi_dj_probe(struct hid_device *hdev, case recvr_type_bluetooth: no_dj_interfaces = 2; break; case recvr_type_dinovo: no_dj_interfaces = 2; break; } - if (hid_is_using_ll_driver(hdev, &usb_hid_driver)) { + if (hid_is_usb(hdev)) { intf = to_usb_interface(hdev->dev.parent); if (intf && intf->altsetting->desc.bInterfaceNumber >= no_dj_interfaces) { diff --git a/drivers/hid/hid-u2fzero.c b/drivers/hid/hid-u2fzero.c index 67ae2b18e33a..ac3fd870673d 100644 --- a/drivers/hid/hid-u2fzero.c +++ b/drivers/hid/hid-u2fzero.c @@ -290,7 +290,7 @@ static int u2fzero_probe(struct hid_device *hdev, unsigned int minor; int ret; - if (!hid_is_using_ll_driver(hdev, &usb_hid_driver)) + if (!hid_is_usb(hdev)) return -EINVAL; dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL); diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c index 3d67b748a3b9..adff1bd68d9f 100644 --- a/drivers/hid/hid-uclogic-params.c +++ b/drivers/hid/hid-uclogic-params.c @@ -843,8 +843,7 @@ int uclogic_params_init(struct uclogic_params *params, struct uclogic_params p = {0, }; /* Check arguments */ - if (params == NULL || hdev == NULL || - !hid_is_using_ll_driver(hdev, &usb_hid_driver)) { + if (params == NULL || hdev == NULL || !hid_is_usb(hdev)) { rc = -EINVAL; goto cleanup; } diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 93f49b766376..4a9416160fa4 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -2217,7 +2217,7 @@ static void wacom_update_name(struct wacom *wacom, const char *suffix) if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) { char *product_name = wacom->hdev->name; - if (hid_is_using_ll_driver(wacom->hdev, &usb_hid_driver)) { + if (hid_is_usb(wacom->hdev)) { struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent); struct usb_device *dev = interface_to_usbdev(intf); product_name = dev->product; diff --git a/include/linux/hid.h b/include/linux/hid.h index 9e067f937dbc..f453be385bd4 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -840,6 +840,11 @@ static inline bool hid_is_using_ll_driver(struct hid_device *hdev, return hdev->ll_driver == driver; } +static inline bool hid_is_usb(struct hid_device *hdev) +{ + return hid_is_using_ll_driver(hdev, &usb_hid_driver); +} + #define PM_HINT_FULLON 1<<5 #define PM_HINT_NORMAL 1<<1 From 10b05037d7a831249bd513ba125e88b242c35a4b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 3 Dec 2021 09:12:31 +0100 Subject: [PATCH 006/172] HID: add USB_HID dependancy to hid-prodikeys commit 30cb3c2ad24b66fb7639a6d1f4390c74d6e68f94 upstream. The prodikeys HID driver only controls USB devices, yet did not have a dependancy on USB_HID. This causes build errors on some configurations like nios2 when building due to new changes to the prodikeys driver. Reported-by: kernel test robot Cc: stable@vger.kernel.org Cc: Jiri Kosina Cc: Benjamin Tissoires Signed-off-by: Greg Kroah-Hartman Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211203081231.2856936-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/hid/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 3c33bf572d6d..060e0518ee6f 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -245,7 +245,7 @@ config HID_MACALLY config HID_PRODIKEYS tristate "Prodikeys PC-MIDI Keyboard support" - depends on HID && SND + depends on USB_HID && SND select SND_RAWMIDI help Support for Prodikeys PC-MIDI Keyboard device support. From 8c765cf5f1bccf6d6f945db9c9e3a7602ad8bb46 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 3 Dec 2021 08:59:27 +0100 Subject: [PATCH 007/172] HID: add USB_HID dependancy to hid-chicony commit d080811f27936f712f619f847389f403ac873b8f upstream. The chicony HID driver only controls USB devices, yet did not have a dependancy on USB_HID. This causes build errors on some configurations like sparc when building due to new changes to the chicony driver. Reported-by: Stephen Rothwell Cc: stable@vger.kernel.org Cc: Jiri Kosina Cc: Benjamin Tissoires Signed-off-by: Greg Kroah-Hartman Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211203075927.2829218-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/hid/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 060e0518ee6f..c826f5148ad4 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -207,7 +207,7 @@ config HID_CHERRY config HID_CHICONY tristate "Chicony devices" - depends on HID + depends on USB_HID default !EXPERT help Support for Chicony Tactical pad and special keys on Chicony keyboards. From 30d3150d909431fd7424ab8ff4c4c2c795554e30 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 2 Dec 2021 12:48:19 +0100 Subject: [PATCH 008/172] HID: add USB_HID dependancy on some USB HID drivers commit f237d9028f844a86955fc9da59d7ac4a5c55d7d5 upstream. Some HID drivers are only for USB drivers, yet did not depend on CONFIG_USB_HID. This was hidden by the fact that the USB functions were stubbed out in the past, but now that drivers are checking for USB devices properly, build errors can occur with some random configurations. Reported-by: kernel test robot Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211202114819.2511954-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/hid/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index c826f5148ad4..9235ab7161e3 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -214,7 +214,7 @@ config HID_CHICONY config HID_CORSAIR tristate "Corsair devices" - depends on HID && USB && LEDS_CLASS + depends on USB_HID && LEDS_CLASS help Support for Corsair devices that are not fully compliant with the HID standard. @@ -553,7 +553,7 @@ config HID_LENOVO config HID_LOGITECH tristate "Logitech devices" - depends on HID + depends on USB_HID depends on LEDS_CLASS default !EXPERT help @@ -919,7 +919,7 @@ config HID_SAITEK config HID_SAMSUNG tristate "Samsung InfraRed remote control or keyboards" - depends on HID + depends on USB_HID help Support for Samsung InfraRed remote control or keyboards. From 58f15f5ae7786c824868f3a7e093859b74669ce7 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Thu, 2 Dec 2021 10:53:32 +0100 Subject: [PATCH 009/172] HID: bigbenff: prevent null pointer dereference commit 918aa1ef104d286d16b9e7ef139a463ac7a296f0 upstream. When emulating the device through uhid, there is a chance we don't have output reports and so report_field is null. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Reviewed-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20211202095334.14399-3-benjamin.tissoires@redhat.com Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-bigbenff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c index db6da21ade06..74ad8bf98bfd 100644 --- a/drivers/hid/hid-bigbenff.c +++ b/drivers/hid/hid-bigbenff.c @@ -191,7 +191,7 @@ static void bigben_worker(struct work_struct *work) struct bigben_device, worker); struct hid_field *report_field = bigben->report->field[0]; - if (bigben->removed) + if (bigben->removed || !report_field) return; if (bigben->work_led) { From 05ca95256abaf3971f73fdcf61a1f6091957f8fb Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 1 Dec 2021 19:35:02 +0100 Subject: [PATCH 010/172] HID: wacom: fix problems when device is not a valid USB device commit 720ac467204a70308bd687927ed475afb904e11b upstream. The wacom driver accepts devices of more than just USB types, but some code paths can cause problems if the device being controlled is not a USB device due to a lack of checking. Add the needed checks to ensure that the USB device accesses are only happening on a "real" USB device, and not one on some other bus. Cc: Jiri Kosina Cc: Benjamin Tissoires Cc: linux-input@vger.kernel.org Cc: stable@vger.kernel.org Tested-by: Benjamin Tissoires Signed-off-by: Greg Kroah-Hartman Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211201183503.2373082-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/hid/wacom_sys.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 4a9416160fa4..b1bbf297f66b 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -726,7 +726,7 @@ static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, * Skip the query for this type and modify defaults based on * interface number. */ - if (features->type == WIRELESS) { + if (features->type == WIRELESS && intf) { if (intf->cur_altsetting->desc.bInterfaceNumber == 0) features->device_type = WACOM_DEVICETYPE_WL_MONITOR; else @@ -2454,6 +2454,9 @@ static void wacom_wireless_work(struct work_struct *work) wacom_destroy_battery(wacom); + if (!usbdev) + return; + /* Stylus interface */ hdev1 = usb_get_intfdata(usbdev->config->interface[1]); wacom1 = hid_get_drvdata(hdev1); @@ -2733,8 +2736,6 @@ static void wacom_mode_change_work(struct work_struct *work) static int wacom_probe(struct hid_device *hdev, const struct hid_device_id *id) { - struct usb_interface *intf = to_usb_interface(hdev->dev.parent); - struct usb_device *dev = interface_to_usbdev(intf); struct wacom *wacom; struct wacom_wac *wacom_wac; struct wacom_features *features; @@ -2769,8 +2770,14 @@ static int wacom_probe(struct hid_device *hdev, wacom_wac->hid_data.inputmode = -1; wacom_wac->mode_report = -1; - wacom->usbdev = dev; - wacom->intf = intf; + if (hid_is_usb(hdev)) { + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + struct usb_device *dev = interface_to_usbdev(intf); + + wacom->usbdev = dev; + wacom->intf = intf; + } + mutex_init(&wacom->lock); INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work); INIT_WORK(&wacom->wireless_work, wacom_wireless_work); From a579510a64ed15463a69cd6fe1a3339bf9ded33b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 1 Dec 2021 19:35:03 +0100 Subject: [PATCH 011/172] HID: check for valid USB device for many HID drivers commit 93020953d0fa7035fd036ad87a47ae2b7aa4ae33 upstream. Many HID drivers assume that the HID device assigned to them is a USB device as that was the only way HID devices used to be able to be created in Linux. However, with the additional ways that HID devices can be created for many different bus types, that is no longer true, so properly check that we have a USB device associated with the HID device before allowing a driver that makes this assumption to claim it. Cc: Jiri Kosina Cc: Benjamin Tissoires Cc: Michael Zaidman Cc: Stefan Achatz Cc: Maxime Coquelin Cc: Alexandre Torgue Cc: linux-input@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Tested-by: Benjamin Tissoires [bentiss: amended for thrustmater.c hunk to apply] Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20211201183503.2373082-3-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-chicony.c | 3 +++ drivers/hid/hid-corsair.c | 7 ++++++- drivers/hid/hid-elan.c | 2 +- drivers/hid/hid-elo.c | 3 +++ drivers/hid/hid-ft260.c | 3 +++ drivers/hid/hid-holtek-kbd.c | 9 +++++++-- drivers/hid/hid-holtek-mouse.c | 9 +++++++++ drivers/hid/hid-lg.c | 10 ++++++++-- drivers/hid/hid-prodikeys.c | 10 ++++++++-- drivers/hid/hid-roccat-arvo.c | 3 +++ drivers/hid/hid-roccat-isku.c | 3 +++ drivers/hid/hid-roccat-kone.c | 3 +++ drivers/hid/hid-roccat-koneplus.c | 3 +++ drivers/hid/hid-roccat-konepure.c | 3 +++ drivers/hid/hid-roccat-kovaplus.c | 3 +++ drivers/hid/hid-roccat-lua.c | 3 +++ drivers/hid/hid-roccat-pyra.c | 3 +++ drivers/hid/hid-roccat-ryos.c | 3 +++ drivers/hid/hid-roccat-savu.c | 3 +++ drivers/hid/hid-samsung.c | 3 +++ drivers/hid/hid-sony.c | 6 +++++- drivers/hid/hid-thrustmaster.c | 3 +++ drivers/hid/hid-uclogic-core.c | 3 +++ 23 files changed, 92 insertions(+), 9 deletions(-) diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c index ca556d39da2a..f04d2aa23efe 100644 --- a/drivers/hid/hid-chicony.c +++ b/drivers/hid/hid-chicony.c @@ -114,6 +114,9 @@ static int ch_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; + if (!hid_is_usb(hdev)) + return -EINVAL; + hdev->quirks |= HID_QUIRK_INPUT_PER_APP; ret = hid_parse(hdev); if (ret) { diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c index 902a60e249ed..8c895c820b67 100644 --- a/drivers/hid/hid-corsair.c +++ b/drivers/hid/hid-corsair.c @@ -553,7 +553,12 @@ static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id) int ret; unsigned long quirks = id->driver_data; struct corsair_drvdata *drvdata; - struct usb_interface *usbif = to_usb_interface(dev->dev.parent); + struct usb_interface *usbif; + + if (!hid_is_usb(dev)) + return -EINVAL; + + usbif = to_usb_interface(dev->dev.parent); drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata), GFP_KERNEL); diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c index 021049805bb7..3091355d48df 100644 --- a/drivers/hid/hid-elan.c +++ b/drivers/hid/hid-elan.c @@ -50,7 +50,7 @@ struct elan_drvdata { static int is_not_elan_touchpad(struct hid_device *hdev) { - if (hdev->bus == BUS_USB) { + if (hid_is_usb(hdev)) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); return (intf->altsetting->desc.bInterfaceNumber != diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c index 383dfda8c12f..8e960d7b233b 100644 --- a/drivers/hid/hid-elo.c +++ b/drivers/hid/hid-elo.c @@ -230,6 +230,9 @@ static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id) int ret; struct usb_device *udev; + if (!hid_is_usb(hdev)) + return -EINVAL; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; diff --git a/drivers/hid/hid-ft260.c b/drivers/hid/hid-ft260.c index 4ef1c3b8094e..183eeb3863b3 100644 --- a/drivers/hid/hid-ft260.c +++ b/drivers/hid/hid-ft260.c @@ -915,6 +915,9 @@ static int ft260_probe(struct hid_device *hdev, const struct hid_device_id *id) struct ft260_get_chip_version_report version; int ret; + if (!hid_is_usb(hdev)) + return -EINVAL; + dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; diff --git a/drivers/hid/hid-holtek-kbd.c b/drivers/hid/hid-holtek-kbd.c index 0a38e8e9bc78..403506b9697e 100644 --- a/drivers/hid/hid-holtek-kbd.c +++ b/drivers/hid/hid-holtek-kbd.c @@ -140,12 +140,17 @@ static int holtek_kbd_input_event(struct input_dev *dev, unsigned int type, static int holtek_kbd_probe(struct hid_device *hdev, const struct hid_device_id *id) { - struct usb_interface *intf = to_usb_interface(hdev->dev.parent); - int ret = hid_parse(hdev); + struct usb_interface *intf; + int ret; + if (!hid_is_usb(hdev)) + return -EINVAL; + + ret = hid_parse(hdev); if (!ret) ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + intf = to_usb_interface(hdev->dev.parent); if (!ret && intf->cur_altsetting->desc.bInterfaceNumber == 1) { struct hid_input *hidinput; list_for_each_entry(hidinput, &hdev->inputs, list) { diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c index 195b735b001d..b7172c48ef9f 100644 --- a/drivers/hid/hid-holtek-mouse.c +++ b/drivers/hid/hid-holtek-mouse.c @@ -62,6 +62,14 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc, return rdesc; } +static int holtek_mouse_probe(struct hid_device *hdev, + const struct hid_device_id *id) +{ + if (!hid_is_usb(hdev)) + return -EINVAL; + return 0; +} + static const struct hid_device_id holtek_mouse_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, @@ -83,6 +91,7 @@ static struct hid_driver holtek_mouse_driver = { .name = "holtek_mouse", .id_table = holtek_mouse_devices, .report_fixup = holtek_mouse_report_fixup, + .probe = holtek_mouse_probe, }; module_hid_driver(holtek_mouse_driver); diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c index d40af911df63..fb3f7258009c 100644 --- a/drivers/hid/hid-lg.c +++ b/drivers/hid/hid-lg.c @@ -749,12 +749,18 @@ static int lg_raw_event(struct hid_device *hdev, struct hid_report *report, static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id) { - struct usb_interface *iface = to_usb_interface(hdev->dev.parent); - __u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber; + struct usb_interface *iface; + __u8 iface_num; unsigned int connect_mask = HID_CONNECT_DEFAULT; struct lg_drv_data *drv_data; int ret; + if (!hid_is_usb(hdev)) + return -EINVAL; + + iface = to_usb_interface(hdev->dev.parent); + iface_num = iface->cur_altsetting->desc.bInterfaceNumber; + /* G29 only work with the 1st interface */ if ((hdev->product == USB_DEVICE_ID_LOGITECH_G29_WHEEL) && (iface_num != 0)) { diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c index 2666af02d5c1..e4e9471d0f1e 100644 --- a/drivers/hid/hid-prodikeys.c +++ b/drivers/hid/hid-prodikeys.c @@ -798,12 +798,18 @@ static int pk_raw_event(struct hid_device *hdev, struct hid_report *report, static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; - struct usb_interface *intf = to_usb_interface(hdev->dev.parent); - unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber; + struct usb_interface *intf; + unsigned short ifnum; unsigned long quirks = id->driver_data; struct pk_device *pk; struct pcmidi_snd *pm = NULL; + if (!hid_is_usb(hdev)) + return -EINVAL; + + intf = to_usb_interface(hdev->dev.parent); + ifnum = intf->cur_altsetting->desc.bInterfaceNumber; + pk = kzalloc(sizeof(*pk), GFP_KERNEL); if (pk == NULL) { hid_err(hdev, "can't alloc descriptor\n"); diff --git a/drivers/hid/hid-roccat-arvo.c b/drivers/hid/hid-roccat-arvo.c index 4556d2a50f75..d94ee0539421 100644 --- a/drivers/hid/hid-roccat-arvo.c +++ b/drivers/hid/hid-roccat-arvo.c @@ -344,6 +344,9 @@ static int arvo_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c index ce5f22519956..e95d59cd8d07 100644 --- a/drivers/hid/hid-roccat-isku.c +++ b/drivers/hid/hid-roccat-isku.c @@ -324,6 +324,9 @@ static int isku_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c index 1ca64481145e..e8522eacf797 100644 --- a/drivers/hid/hid-roccat-kone.c +++ b/drivers/hid/hid-roccat-kone.c @@ -749,6 +749,9 @@ static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id) { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c index 0316edf8c5bb..1896c69ea512 100644 --- a/drivers/hid/hid-roccat-koneplus.c +++ b/drivers/hid/hid-roccat-koneplus.c @@ -431,6 +431,9 @@ static int koneplus_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-konepure.c b/drivers/hid/hid-roccat-konepure.c index 5248b3c7cf78..cf8eeb33a125 100644 --- a/drivers/hid/hid-roccat-konepure.c +++ b/drivers/hid/hid-roccat-konepure.c @@ -133,6 +133,9 @@ static int konepure_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c index 960012881570..6fb9b9563769 100644 --- a/drivers/hid/hid-roccat-kovaplus.c +++ b/drivers/hid/hid-roccat-kovaplus.c @@ -501,6 +501,9 @@ static int kovaplus_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-lua.c b/drivers/hid/hid-roccat-lua.c index 4a88a76d5c62..d5ddf0d68346 100644 --- a/drivers/hid/hid-roccat-lua.c +++ b/drivers/hid/hid-roccat-lua.c @@ -160,6 +160,9 @@ static int lua_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c index 989927defe8d..4fcc8e7d276f 100644 --- a/drivers/hid/hid-roccat-pyra.c +++ b/drivers/hid/hid-roccat-pyra.c @@ -449,6 +449,9 @@ static int pyra_probe(struct hid_device *hdev, const struct hid_device_id *id) { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-ryos.c b/drivers/hid/hid-roccat-ryos.c index 3956a6c9c521..5bf1971a2b14 100644 --- a/drivers/hid/hid-roccat-ryos.c +++ b/drivers/hid/hid-roccat-ryos.c @@ -141,6 +141,9 @@ static int ryos_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-roccat-savu.c b/drivers/hid/hid-roccat-savu.c index 818701f7a028..a784bb4ee651 100644 --- a/drivers/hid/hid-roccat-savu.c +++ b/drivers/hid/hid-roccat-savu.c @@ -113,6 +113,9 @@ static int savu_probe(struct hid_device *hdev, { int retval; + if (!hid_is_usb(hdev)) + return -EINVAL; + retval = hid_parse(hdev); if (retval) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c index 2e1c31156eca..cf5992e97094 100644 --- a/drivers/hid/hid-samsung.c +++ b/drivers/hid/hid-samsung.c @@ -152,6 +152,9 @@ static int samsung_probe(struct hid_device *hdev, int ret; unsigned int cmask = HID_CONNECT_DEFAULT; + if (!hid_is_usb(hdev)) + return -EINVAL; + ret = hid_parse(hdev); if (ret) { hid_err(hdev, "parse failed\n"); diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index d1b107d547f5..c186af552129 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -3000,7 +3000,6 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) sc->quirks = quirks; hid_set_drvdata(hdev, sc); sc->hdev = hdev; - usbdev = to_usb_device(sc->hdev->dev.parent->parent); ret = hid_parse(hdev); if (ret) { @@ -3043,6 +3042,11 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) } if (sc->quirks & (GHL_GUITAR_PS3WIIU | GHL_GUITAR_PS4)) { + if (!hid_is_usb(hdev)) + return -EINVAL; + + usbdev = to_usb_device(sc->hdev->dev.parent->parent); + sc->ghl_urb = usb_alloc_urb(0, GFP_ATOMIC); if (!sc->ghl_urb) return -ENOMEM; diff --git a/drivers/hid/hid-thrustmaster.c b/drivers/hid/hid-thrustmaster.c index d44550aa8805..0c92b7f9b8b8 100644 --- a/drivers/hid/hid-thrustmaster.c +++ b/drivers/hid/hid-thrustmaster.c @@ -274,6 +274,9 @@ static int thrustmaster_probe(struct hid_device *hdev, const struct hid_device_i int ret = 0; struct tm_wheel *tm_wheel = 0; + if (!hid_is_usb(hdev)) + return -EINVAL; + ret = hid_parse(hdev); if (ret) { hid_err(hdev, "parse failed with error %d\n", ret); diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c index 6a9865dd703c..d8ab0139e5cd 100644 --- a/drivers/hid/hid-uclogic-core.c +++ b/drivers/hid/hid-uclogic-core.c @@ -164,6 +164,9 @@ static int uclogic_probe(struct hid_device *hdev, struct uclogic_drvdata *drvdata = NULL; bool params_initialized = false; + if (!hid_is_usb(hdev)) + return -EINVAL; + /* * libinput requires the pad interface to be on a different node * than the pen, so use QUIRK_MULTI_INPUT for all tablets. From 59146a86b4aa953f26b516ae81f81de4994da21f Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Tue, 30 Nov 2021 11:24:43 +0000 Subject: [PATCH 012/172] mtd: dataflash: Add device-tree SPI IDs commit 27a030e8729255b2068f35c1cd609b532b263311 upstream. Commit 5fa6863ba692 ("spi: Check we have a spi_device_id for each DT compatible") added a test to check that every SPI driver has a spi_device_id for each DT compatiable string defined by the driver and warns if the spi_device_id is missing. The spi_device_ids are missing for the dataflash driver and the following warnings are now seen. WARNING KERN SPI driver mtd_dataflash has no spi_device_id for atmel,at45 WARNING KERN SPI driver mtd_dataflash has no spi_device_id for atmel,dataflash Fix this by adding the necessary spi_device_ids. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Jon Hunter Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20211130112443.107730-1-jonathanh@nvidia.com Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/devices/mtd_dataflash.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 9802e265fca8..2b317ed6c103 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -96,6 +96,13 @@ struct dataflash { struct mtd_info mtd; }; +static const struct spi_device_id dataflash_dev_ids[] = { + { "at45" }, + { "dataflash" }, + { }, +}; +MODULE_DEVICE_TABLE(spi, dataflash_dev_ids); + #ifdef CONFIG_OF static const struct of_device_id dataflash_dt_ids[] = { { .compatible = "atmel,at45", }, @@ -927,6 +934,7 @@ static struct spi_driver dataflash_driver = { .name = "mtd_dataflash", .of_match_table = of_match_ptr(dataflash_dt_ids), }, + .id_table = dataflash_dev_ids, .probe = dataflash_probe, .remove = dataflash_remove, From e537e7ef5e8c19e1cc1b4bc8c282d0a1d2a6f885 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Mon, 15 Nov 2021 11:38:13 +0000 Subject: [PATCH 013/172] mmc: spi: Add device-tree SPI IDs commit 5f719948b5d43eb39356e94e8d0b462568915381 upstream. Commit 5fa6863ba692 ("spi: Check we have a spi_device_id for each DT compatible") added a test to check that every SPI driver has a spi_device_id for each DT compatiable string defined by the driver and warns if the spi_device_id is missing. The spi_device_id is missing for the MMC SPI driver and the following warning is now seen. WARNING KERN SPI driver mmc_spi has no spi_device_id for mmc-spi-slot Fix this by adding the necessary spi_device_id. Signed-off-by: Jon Hunter Link: https://lore.kernel.org/r/20211115113813.238044-1-jonathanh@nvidia.com Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/mmc_spi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index f4c8e1a61f53..b431cdd27353 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -1514,6 +1514,12 @@ static int mmc_spi_remove(struct spi_device *spi) return 0; } +static const struct spi_device_id mmc_spi_dev_ids[] = { + { "mmc-spi-slot"}, + { }, +}; +MODULE_DEVICE_TABLE(spi, mmc_spi_dev_ids); + static const struct of_device_id mmc_spi_of_match_table[] = { { .compatible = "mmc-spi-slot", }, {}, @@ -1525,6 +1531,7 @@ static struct spi_driver mmc_spi_driver = { .name = "mmc_spi", .of_match_table = mmc_spi_of_match_table, }, + .id_table = mmc_spi_dev_ids, .probe = mmc_spi_probe, .remove = mmc_spi_remove, }; From 719d5fb2789acd4b3a6771f7e60a0fe4ca84d2b0 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Thu, 2 Dec 2021 10:53:31 +0100 Subject: [PATCH 014/172] HID: sony: fix error path in probe commit 7998193bccc1c6e1537c5f3880fd0d5b949ec9d1 upstream. When the setup of the GHL fails, we are not calling hid_hw_stop(). This leads to the hidraw node not being released, meaning a crash whenever somebody attempts to open the file. Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Reviewed-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20211202095334.14399-2-benjamin.tissoires@redhat.com Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-sony.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index c186af552129..60ec2b29d54d 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -3037,19 +3037,23 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) */ if (!(hdev->claimed & HID_CLAIMED_INPUT)) { hid_err(hdev, "failed to claim input\n"); - hid_hw_stop(hdev); - return -ENODEV; + ret = -ENODEV; + goto err; } if (sc->quirks & (GHL_GUITAR_PS3WIIU | GHL_GUITAR_PS4)) { - if (!hid_is_usb(hdev)) - return -EINVAL; + if (!hid_is_usb(hdev)) { + ret = -EINVAL; + goto err; + } usbdev = to_usb_device(sc->hdev->dev.parent->parent); sc->ghl_urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!sc->ghl_urb) - return -ENOMEM; + if (!sc->ghl_urb) { + ret = -ENOMEM; + goto err; + } if (sc->quirks & GHL_GUITAR_PS3WIIU) ret = ghl_init_urb(sc, usbdev, ghl_ps3wiiu_magic_data, @@ -3059,7 +3063,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) ARRAY_SIZE(ghl_ps4_magic_data)); if (ret) { hid_err(hdev, "error preparing URB\n"); - return ret; + goto err; } timer_setup(&sc->ghl_poke_timer, ghl_magic_poke, 0); @@ -3068,6 +3072,10 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) } return ret; + +err: + hid_hw_stop(hdev); + return ret; } static void sony_remove(struct hid_device *hdev) From 6281306bdc99f1c3f1fe584dd074d14e04dcf381 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 7 Dec 2021 13:10:53 +0100 Subject: [PATCH 015/172] HID: Ignore battery for Elan touchscreen on Asus UX550VE commit 14902f8961dca9c66bf190f7b1583767c97a4197 upstream. Battery status is reported for the Asus UX550VE touchscreen even though it does not have a battery. Prevent it from always reporting the battery as low. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1897823 Signed-off-by: Hans de Goede Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-input.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index cf405237e558..70e65eb1b868 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -394,6 +394,7 @@ #define USB_DEVICE_ID_HP_X2 0x074d #define USB_DEVICE_ID_HP_X2_10_COVER 0x0755 #define I2C_DEVICE_ID_HP_SPECTRE_X360_15 0x2817 +#define USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN 0x2544 #define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706 #define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 6561770f1af5..55017db98d89 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -325,6 +325,8 @@ static const struct hid_device_id hid_battery_quirks[] = { HID_BATTERY_QUIRK_IGNORE }, { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN), HID_BATTERY_QUIRK_IGNORE }, + { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN), + HID_BATTERY_QUIRK_IGNORE }, { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15), HID_BATTERY_QUIRK_IGNORE }, { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN), From 20d1064ac956da9bf8625558d2d27567753298a8 Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Fri, 3 Dec 2021 14:28:10 -0700 Subject: [PATCH 016/172] platform/x86/intel: hid: add quirk to support Surface Go 3 commit 7d0c009043f6a970f62dbf5aecda9f8c3ccafcff upstream. Similar to other systems Surface Go 3 requires a DMI quirk to enable 5 button array for power and volume buttons. Buglink: https://github.com/linux-surface/linux-surface/issues/595 Cc: stable@vger.kernel.org Signed-off-by: Alex Hung Link: https://lore.kernel.org/r/20211203212810.2666508-1-alex.hung@canonical.com Signed-off-by: Hans de Goede Signed-off-by: Greg Kroah-Hartman --- drivers/platform/x86/intel/hid.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c index 08598942a6d7..13f8cf70b9ae 100644 --- a/drivers/platform/x86/intel/hid.c +++ b/drivers/platform/x86/intel/hid.c @@ -99,6 +99,13 @@ static const struct dmi_system_id button_array_table[] = { DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X1 Tablet Gen 2"), }, }, + { + .ident = "Microsoft Surface Go 3", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "Surface Go 3"), + }, + }, { } }; From 33bee1ebfc83dc2deca76e655420a3e09ed348b9 Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Sat, 27 Nov 2021 11:33:37 +0100 Subject: [PATCH 017/172] nft_set_pipapo: Fix bucket load in AVX2 lookup routine for six 8-bit groups commit b7e945e228d7df1b1473ef6fd2cdec67433065fb upstream. The sixth byte of packet data has to be looked up in the sixth group, not in the seventh one, even if we load the bucket data into ymm6 (and not ymm5, for convenience of tracking stalls). Without this fix, matching on a MAC address as first field of a set, if 8-bit groups are selected (due to a small set size) would fail, that is, the given MAC address would never match. Reported-by: Nikita Yushchenko Cc: # 5.6.x Fixes: 7400b063969b ("nft_set_pipapo: Introduce AVX2-based lookup implementation") Signed-off-by: Stefano Brivio Tested-By: Nikita Yushchenko Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/nft_set_pipapo_avx2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nft_set_pipapo_avx2.c b/net/netfilter/nft_set_pipapo_avx2.c index e517663e0cd1..6f4116e72958 100644 --- a/net/netfilter/nft_set_pipapo_avx2.c +++ b/net/netfilter/nft_set_pipapo_avx2.c @@ -886,7 +886,7 @@ static int nft_pipapo_avx2_lookup_8b_6(unsigned long *map, unsigned long *fill, NFT_PIPAPO_AVX2_BUCKET_LOAD8(4, lt, 4, pkt[4], bsize); NFT_PIPAPO_AVX2_AND(5, 0, 1); - NFT_PIPAPO_AVX2_BUCKET_LOAD8(6, lt, 6, pkt[5], bsize); + NFT_PIPAPO_AVX2_BUCKET_LOAD8(6, lt, 5, pkt[5], bsize); NFT_PIPAPO_AVX2_AND(7, 2, 3); /* Stall */ From b9e1cc3b95e8355ca96d5133d05efb1adeae88e8 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 29 Nov 2021 14:19:58 -0500 Subject: [PATCH 018/172] IB/hfi1: Insure use of smp_processor_id() is preempt disabled commit b6d57e24ce6cc3df8a8845e1b193e88a65d501b1 upstream. The following BUG has just surfaced with our 5.16 testing: BUG: using smp_processor_id() in preemptible [00000000] code: mpicheck/1581081 caller is sdma_select_user_engine+0x72/0x210 [hfi1] CPU: 0 PID: 1581081 Comm: mpicheck Tainted: G S 5.16.0-rc1+ #1 Hardware name: Intel Corporation S2600WT2R/S2600WT2R, BIOS SE5C610.86B.01.01.0016.033120161139 03/31/2016 Call Trace: dump_stack_lvl+0x33/0x42 check_preemption_disabled+0xbf/0xe0 sdma_select_user_engine+0x72/0x210 [hfi1] ? _raw_spin_unlock_irqrestore+0x1f/0x31 ? hfi1_mmu_rb_insert+0x6b/0x200 [hfi1] hfi1_user_sdma_process_request+0xa02/0x1120 [hfi1] ? hfi1_write_iter+0xb8/0x200 [hfi1] hfi1_write_iter+0xb8/0x200 [hfi1] do_iter_readv_writev+0x163/0x1c0 do_iter_write+0x80/0x1c0 vfs_writev+0x88/0x1a0 ? recalibrate_cpu_khz+0x10/0x10 ? ktime_get+0x3e/0xa0 ? __fget_files+0x66/0xa0 do_writev+0x65/0x100 do_syscall_64+0x3a/0x80 Fix this long standing bug by moving the smp_processor_id() to after the rcu_read_lock(). The rcu_read_lock() implicitly disables preemption. Link: https://lore.kernel.org/r/20211129191958.101968.87329.stgit@awfm-01.cornelisnetworks.com Cc: stable@vger.kernel.org Fixes: 0cb2aa690c7e ("IB/hfi1: Add sysfs interface for affinity setup") Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/hfi1/sdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c index 2b6c24b7b586..f07d328689d3 100644 --- a/drivers/infiniband/hw/hfi1/sdma.c +++ b/drivers/infiniband/hw/hfi1/sdma.c @@ -838,8 +838,8 @@ struct sdma_engine *sdma_select_user_engine(struct hfi1_devdata *dd, if (current->nr_cpus_allowed != 1) goto out; - cpu_id = smp_processor_id(); rcu_read_lock(); + cpu_id = smp_processor_id(); rht_node = rhashtable_lookup(dd->sdma_rht, &cpu_id, sdma_rht_params); From 27bbf30f928ad88b221d4f6d948c3e24ad5098f1 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 29 Nov 2021 14:20:03 -0500 Subject: [PATCH 019/172] IB/hfi1: Fix early init panic commit f6a3cfec3c01f9983e961c3327cef0db129a3c43 upstream. The following trace can be observed with an init failure such as firmware load failures: BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 0 P4D 0 Oops: 0010 [#1] SMP PTI CPU: 0 PID: 537 Comm: kworker/0:3 Tainted: G OE --------- - - 4.18.0-240.el8.x86_64 #1 Workqueue: events work_for_cpu_fn RIP: 0010:0x0 Code: Bad RIP value. RSP: 0000:ffffae5f878a3c98 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff95e48e025c00 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff95e48e025c00 RBP: ffff95e4bf3660a4 R08: 0000000000000000 R09: ffffffff86d5e100 R10: ffff95e49e1de600 R11: 0000000000000001 R12: ffff95e4bf366180 R13: ffff95e48e025c00 R14: ffff95e4bf366028 R15: ffff95e4bf366000 FS: 0000000000000000(0000) GS:ffff95e4df200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000f86a0a003 CR4: 00000000001606f0 Call Trace: receive_context_interrupt+0x1f/0x40 [hfi1] __free_irq+0x201/0x300 free_irq+0x2e/0x60 pci_free_irq+0x18/0x30 msix_free_irq.part.2+0x46/0x80 [hfi1] msix_clean_up_interrupts+0x2b/0x70 [hfi1] hfi1_init_dd+0x640/0x1a90 [hfi1] do_init_one.isra.19+0x34d/0x680 [hfi1] local_pci_probe+0x41/0x90 work_for_cpu_fn+0x16/0x20 process_one_work+0x1a7/0x360 worker_thread+0x1cf/0x390 ? create_worker+0x1a0/0x1a0 kthread+0x112/0x130 ? kthread_flush_work_fn+0x10/0x10 ret_from_fork+0x35/0x40 The free_irq() results in a callback to the registered interrupt handler, and rcd->do_interrupt is NULL because the receive context data structures are not fully initialized. Fix by ensuring that the do_interrupt is always assigned and adding a guards in the slow path handler to detect and handle a partially initialized receive context and noop the receive. Link: https://lore.kernel.org/r/20211129192003.101968.33612.stgit@awfm-01.cornelisnetworks.com Cc: stable@vger.kernel.org Fixes: b0ba3c18d6bf ("IB/hfi1: Move normal functions from hfi1_devdata to const array") Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/hfi1/chip.c | 2 ++ drivers/infiniband/hw/hfi1/driver.c | 2 ++ drivers/infiniband/hw/hfi1/init.c | 5 ++--- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index 37273dc0c03c..b0d587254fe6 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -8414,6 +8414,8 @@ static void receive_interrupt_common(struct hfi1_ctxtdata *rcd) */ static void __hfi1_rcd_eoi_intr(struct hfi1_ctxtdata *rcd) { + if (!rcd->rcvhdrq) + return; clear_recv_intr(rcd); if (check_packet_present(rcd)) force_recv_intr(rcd); diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c index de411884386b..385e6cff0d27 100644 --- a/drivers/infiniband/hw/hfi1/driver.c +++ b/drivers/infiniband/hw/hfi1/driver.c @@ -1011,6 +1011,8 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread) struct hfi1_packet packet; int skip_pkt = 0; + if (!rcd->rcvhdrq) + return RCV_PKT_OK; /* Control context will always use the slow path interrupt handler */ needset = (rcd->ctxt == HFI1_CTRL_CTXT) ? 0 : 1; diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index e3679d076eaa..a2e80799fb45 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -112,7 +112,6 @@ static int hfi1_create_kctxt(struct hfi1_devdata *dd, rcd->fast_handler = get_dma_rtail_setting(rcd) ? handle_receive_interrupt_dma_rtail : handle_receive_interrupt_nodma_rtail; - rcd->slow_handler = handle_receive_interrupt; hfi1_set_seq_cnt(rcd, 1); @@ -333,6 +332,8 @@ int hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, int numa, rcd->numa_id = numa; rcd->rcv_array_groups = dd->rcv_entries.ngroups; rcd->rhf_rcv_function_map = normal_rhf_rcv_functions; + rcd->slow_handler = handle_receive_interrupt; + rcd->do_interrupt = rcd->slow_handler; rcd->msix_intr = CCE_NUM_MSIX_VECTORS; mutex_init(&rcd->exp_mutex); @@ -897,8 +898,6 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit) if (!rcd) continue; - rcd->do_interrupt = &handle_receive_interrupt; - lastfail = hfi1_create_rcvhdrq(dd, rcd); if (!lastfail) lastfail = hfi1_setup_eagerbufs(rcd); From 834d0fb978643eaf09da425de197cc16a7c2761b Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 29 Nov 2021 14:20:08 -0500 Subject: [PATCH 020/172] IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr commit 60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1 upstream. This buffer is currently allocated in hfi1_init(): if (reinit) ret = init_after_reset(dd); else ret = loadtime_init(dd); if (ret) goto done; /* allocate dummy tail memory for all receive contexts */ dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64), &dd->rcvhdrtail_dummy_dma, GFP_KERNEL); if (!dd->rcvhdrtail_dummy_kvaddr) { dd_dev_err(dd, "cannot allocate dummy tail memory\n"); ret = -ENOMEM; goto done; } The reinit triggered path will overwrite the old allocation and leak it. Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation to hfi1_free_devdata(). Link: https://lore.kernel.org/r/20211129192008.101968.91302.stgit@awfm-01.cornelisnetworks.com Cc: stable@vger.kernel.org Fixes: 46b010d3eeb8 ("staging/rdma/hfi1: Workaround to prevent corruption during packet delivery") Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/hfi1/init.c | 33 +++++++++++++------------------ 1 file changed, 14 insertions(+), 19 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index a2e80799fb45..a2e898525325 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -874,18 +874,6 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit) if (ret) goto done; - /* allocate dummy tail memory for all receive contexts */ - dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, - sizeof(u64), - &dd->rcvhdrtail_dummy_dma, - GFP_KERNEL); - - if (!dd->rcvhdrtail_dummy_kvaddr) { - dd_dev_err(dd, "cannot allocate dummy tail memory\n"); - ret = -ENOMEM; - goto done; - } - /* dd->rcd can be NULL if early initialization failed */ for (i = 0; dd->rcd && i < dd->first_dyn_alloc_ctxt; ++i) { /* @@ -1199,6 +1187,11 @@ void hfi1_free_devdata(struct hfi1_devdata *dd) dd->tx_opstats = NULL; kfree(dd->comp_vect); dd->comp_vect = NULL; + if (dd->rcvhdrtail_dummy_kvaddr) + dma_free_coherent(&dd->pcidev->dev, sizeof(u64), + (void *)dd->rcvhdrtail_dummy_kvaddr, + dd->rcvhdrtail_dummy_dma); + dd->rcvhdrtail_dummy_kvaddr = NULL; sdma_clean(dd, dd->num_sdma); rvt_dealloc_device(&dd->verbs_dev.rdi); } @@ -1296,6 +1289,15 @@ static struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, goto bail; } + /* allocate dummy tail memory for all receive contexts */ + dd->rcvhdrtail_dummy_kvaddr = + dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64), + &dd->rcvhdrtail_dummy_dma, GFP_KERNEL); + if (!dd->rcvhdrtail_dummy_kvaddr) { + ret = -ENOMEM; + goto bail; + } + atomic_set(&dd->ipoib_rsm_usr_num, 0); return dd; @@ -1503,13 +1505,6 @@ static void cleanup_device_data(struct hfi1_devdata *dd) free_credit_return(dd); - if (dd->rcvhdrtail_dummy_kvaddr) { - dma_free_coherent(&dd->pcidev->dev, sizeof(u64), - (void *)dd->rcvhdrtail_dummy_kvaddr, - dd->rcvhdrtail_dummy_dma); - dd->rcvhdrtail_dummy_kvaddr = NULL; - } - /* * Free any resources still in use (usually just kernel contexts) * at unload; we do for ctxtcnt, because that's what we allocate. From a8b513b824e4bf2d88b49c35ef312cd73d958672 Mon Sep 17 00:00:00 2001 From: Jimmy Assarsson Date: Wed, 8 Dec 2021 16:21:22 +0100 Subject: [PATCH 021/172] can: kvaser_usb: get CAN clock frequency from device commit fb12797ab1fef480ad8a32a30984844444eeb00d upstream. The CAN clock frequency is used when calculating the CAN bittiming parameters. When wrong clock frequency is used, the device may end up with wrong bittiming parameters, depending on user requested bittiming parameters. To avoid this, get the CAN clock frequency from the device. Various existing Kvaser Leaf products use different CAN clocks. Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices") Link: https://lore.kernel.org/all/20211208152122.250852-2-extja@kvaser.com Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- .../net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 101 +++++++++++++----- 1 file changed, 73 insertions(+), 28 deletions(-) diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index 59ba7c7beec0..f7af1bf5ab46 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -28,10 +28,6 @@ #include "kvaser_usb.h" -/* Forward declaration */ -static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg; - -#define CAN_USB_CLOCK 8000000 #define MAX_USBCAN_NET_DEVICES 2 /* Command header size */ @@ -80,6 +76,12 @@ static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg; #define CMD_LEAF_LOG_MESSAGE 106 +/* Leaf frequency options */ +#define KVASER_USB_LEAF_SWOPTION_FREQ_MASK 0x60 +#define KVASER_USB_LEAF_SWOPTION_FREQ_16_MHZ_CLK 0 +#define KVASER_USB_LEAF_SWOPTION_FREQ_32_MHZ_CLK BIT(5) +#define KVASER_USB_LEAF_SWOPTION_FREQ_24_MHZ_CLK BIT(6) + /* error factors */ #define M16C_EF_ACKE BIT(0) #define M16C_EF_CRCE BIT(1) @@ -340,6 +342,50 @@ struct kvaser_usb_err_summary { }; }; +static const struct can_bittiming_const kvaser_usb_leaf_bittiming_const = { + .name = "kvaser_usb", + .tseg1_min = KVASER_USB_TSEG1_MIN, + .tseg1_max = KVASER_USB_TSEG1_MAX, + .tseg2_min = KVASER_USB_TSEG2_MIN, + .tseg2_max = KVASER_USB_TSEG2_MAX, + .sjw_max = KVASER_USB_SJW_MAX, + .brp_min = KVASER_USB_BRP_MIN, + .brp_max = KVASER_USB_BRP_MAX, + .brp_inc = KVASER_USB_BRP_INC, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_8mhz = { + .clock = { + .freq = 8000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_16mhz = { + .clock = { + .freq = 16000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_24mhz = { + .clock = { + .freq = 24000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_32mhz = { + .clock = { + .freq = 32000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + static void * kvaser_usb_leaf_frame_to_cmd(const struct kvaser_usb_net_priv *priv, const struct sk_buff *skb, int *frame_len, @@ -471,6 +517,27 @@ static int kvaser_usb_leaf_send_simple_cmd(const struct kvaser_usb *dev, return rc; } +static void kvaser_usb_leaf_get_software_info_leaf(struct kvaser_usb *dev, + const struct leaf_cmd_softinfo *softinfo) +{ + u32 sw_options = le32_to_cpu(softinfo->sw_options); + + dev->fw_version = le32_to_cpu(softinfo->fw_version); + dev->max_tx_urbs = le16_to_cpu(softinfo->max_outstanding_tx); + + switch (sw_options & KVASER_USB_LEAF_SWOPTION_FREQ_MASK) { + case KVASER_USB_LEAF_SWOPTION_FREQ_16_MHZ_CLK: + dev->cfg = &kvaser_usb_leaf_dev_cfg_16mhz; + break; + case KVASER_USB_LEAF_SWOPTION_FREQ_24_MHZ_CLK: + dev->cfg = &kvaser_usb_leaf_dev_cfg_24mhz; + break; + case KVASER_USB_LEAF_SWOPTION_FREQ_32_MHZ_CLK: + dev->cfg = &kvaser_usb_leaf_dev_cfg_32mhz; + break; + } +} + static int kvaser_usb_leaf_get_software_info_inner(struct kvaser_usb *dev) { struct kvaser_cmd cmd; @@ -486,14 +553,13 @@ static int kvaser_usb_leaf_get_software_info_inner(struct kvaser_usb *dev) switch (dev->card_data.leaf.family) { case KVASER_LEAF: - dev->fw_version = le32_to_cpu(cmd.u.leaf.softinfo.fw_version); - dev->max_tx_urbs = - le16_to_cpu(cmd.u.leaf.softinfo.max_outstanding_tx); + kvaser_usb_leaf_get_software_info_leaf(dev, &cmd.u.leaf.softinfo); break; case KVASER_USBCAN: dev->fw_version = le32_to_cpu(cmd.u.usbcan.softinfo.fw_version); dev->max_tx_urbs = le16_to_cpu(cmd.u.usbcan.softinfo.max_outstanding_tx); + dev->cfg = &kvaser_usb_leaf_dev_cfg_8mhz; break; } @@ -1225,24 +1291,11 @@ static int kvaser_usb_leaf_init_card(struct kvaser_usb *dev) { struct kvaser_usb_dev_card_data *card_data = &dev->card_data; - dev->cfg = &kvaser_usb_leaf_dev_cfg; card_data->ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; return 0; } -static const struct can_bittiming_const kvaser_usb_leaf_bittiming_const = { - .name = "kvaser_usb", - .tseg1_min = KVASER_USB_TSEG1_MIN, - .tseg1_max = KVASER_USB_TSEG1_MAX, - .tseg2_min = KVASER_USB_TSEG2_MIN, - .tseg2_max = KVASER_USB_TSEG2_MAX, - .sjw_max = KVASER_USB_SJW_MAX, - .brp_min = KVASER_USB_BRP_MIN, - .brp_max = KVASER_USB_BRP_MAX, - .brp_inc = KVASER_USB_BRP_INC, -}; - static int kvaser_usb_leaf_set_bittiming(struct net_device *netdev) { struct kvaser_usb_net_priv *priv = netdev_priv(netdev); @@ -1348,11 +1401,3 @@ const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops = { .dev_read_bulk_callback = kvaser_usb_leaf_read_bulk_callback, .dev_frame_to_cmd = kvaser_usb_leaf_frame_to_cmd, }; - -static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg = { - .clock = { - .freq = CAN_USB_CLOCK, - }, - .timestamp_freq = 1, - .bittiming_const = &kvaser_usb_leaf_bittiming_const, -}; From c9b5472da3a84a22cd491c252de8e441b87f8200 Mon Sep 17 00:00:00 2001 From: Jimmy Assarsson Date: Wed, 8 Dec 2021 16:21:21 +0100 Subject: [PATCH 022/172] can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter commit 36aea60fc892ce73f96d45dc7eb239c7c4c1fa69 upstream. Check the direction bit in the error frame packet (EPACK) to determine which net_device_stats {rx,tx}_errors counter to increase. Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Link: https://lore.kernel.org/all/20211208152122.250852-1-extja@kvaser.com Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/kvaser_pciefd.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 74d9899fc904..eb74cdf26b88 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -248,6 +248,9 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices"); #define KVASER_PCIEFD_SPACK_EWLR BIT(23) #define KVASER_PCIEFD_SPACK_EPLR BIT(24) +/* Kvaser KCAN_EPACK second word */ +#define KVASER_PCIEFD_EPACK_DIR_TX BIT(0) + struct kvaser_pciefd; struct kvaser_pciefd_can { @@ -1285,7 +1288,10 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can, can->err_rep_cnt++; can->can.can_stats.bus_error++; - stats->rx_errors++; + if (p->header[1] & KVASER_PCIEFD_EPACK_DIR_TX) + stats->tx_errors++; + else + stats->rx_errors++; can->bec.txerr = bec.txerr; can->bec.rxerr = bec.rxerr; From 474f9a8534f5f89841240a7e978bafd6e1e039ce Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 24 Nov 2021 17:50:41 +0300 Subject: [PATCH 023/172] can: sja1000: fix use after free in ems_pcmcia_add_card() commit 3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45 upstream. If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up. Fixes: fd734c6f25ae ("can/sja1000: add driver for EMS PCMCIA card") Link: https://lore.kernel.org/all/20211124145041.GB13656@kili Cc: stable@vger.kernel.org Signed-off-by: Dan Carpenter Acked-by: Oliver Hartkopp Tested-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/sja1000/ems_pcmcia.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/sja1000/ems_pcmcia.c b/drivers/net/can/sja1000/ems_pcmcia.c index e21b169c14c0..4642b6d4aaf7 100644 --- a/drivers/net/can/sja1000/ems_pcmcia.c +++ b/drivers/net/can/sja1000/ems_pcmcia.c @@ -234,7 +234,12 @@ static int ems_pcmcia_add_card(struct pcmcia_device *pdev, unsigned long base) free_sja1000dev(dev); } - err = request_irq(dev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, + if (!card->channels) { + err = -ENODEV; + goto failure_cleanup; + } + + err = request_irq(pdev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, DRV_NAME, card); if (!err) return 0; From 6c73fc931658d8cbc8a1714b326cb31eb71d16a7 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Tue, 23 Nov 2021 20:16:54 +0900 Subject: [PATCH 024/172] can: pch_can: pch_can_rx_normal: fix use after free commit 94cddf1e9227a171b27292509d59691819c458db upstream. After calling netif_receive_skb(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is dereferenced just after the call netif_receive_skb(skb). Reordering the lines solves the issue. Fixes: b21d18b51b31 ("can: Topcliff: Add PCH_CAN driver.") Link: https://lore.kernel.org/all/20211123111654.621610-1-mailhol.vincent@wanadoo.fr Cc: stable@vger.kernel.org Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/pch_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 92a54a5fd4c5..964c8a09226a 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -692,11 +692,11 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 obj_num, int quota) cf->data[i + 1] = data_reg >> 8; } - netif_receive_skb(skb); rcv_pkts++; stats->rx_packets++; quota--; stats->rx_bytes += cf->len; + netif_receive_skb(skb); pch_fifo_thresh(priv, obj_num); obj_num++; From 75a422165477dd12d2d20aa7c9ee7c9a281c9908 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Sun, 7 Nov 2021 14:07:55 +0900 Subject: [PATCH 025/172] can: m_can: m_can_read_fifo: fix memory leak in error branch commit 31cb32a590d62b18f69a9a6d433f4e69c74fdd56 upstream. In m_can_read_fifo(), if the second call to m_can_fifo_read() fails, the function jump to the out_fail label and returns without calling m_can_receive_skb(). This means that the skb previously allocated by alloc_can_skb() is not freed. In other terms, this is a memory leak. This patch adds a goto label to destroy the skb if an error occurs. Issue was found with GCC -fanalyzer, please follow the link below for details. Fixes: e39381770ec9 ("can: m_can: Disable IRQs on FIFO bus errors") Link: https://lore.kernel.org/all/20211107050755.70655-1-mailhol.vincent@wanadoo.fr Cc: stable@vger.kernel.org Cc: Matt Kline Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/m_can/m_can.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 2470c47b2e31..f4f54012dea7 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -517,7 +517,7 @@ static int m_can_read_fifo(struct net_device *dev, u32 rxfs) err = m_can_fifo_read(cdev, fgi, M_CAN_FIFO_DATA, cf->data, DIV_ROUND_UP(cf->len, 4)); if (err) - goto out_fail; + goto out_free_skb; } /* acknowledge rx fifo 0 */ @@ -532,6 +532,8 @@ static int m_can_read_fifo(struct net_device *dev, u32 rxfs) return 0; +out_free_skb: + kfree_skb(skb); out_fail: netdev_err(dev, "FIFO read returned %d\n", err); return err; From f4848384c17ef8390368e6f8d900274433d45647 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Mon, 15 Nov 2021 10:18:49 +0100 Subject: [PATCH 026/172] can: m_can: pci: fix incorrect reference clock rate commit 8c03b8bff765ac4146342ef90931bb50e788c758 upstream. When testing the CAN controller on our Ekhart Lake hardware, we determined that all communication was running with twice the configured bitrate. Changing the reference clock rate from 100MHz to 200MHz fixed this. Intel's support has confirmed to us that 200MHz is indeed the correct clock rate. Fixes: cab7ffc0324f ("can: m_can: add PCI glue driver for Intel Elkhart Lake") Link: https://lore.kernel.org/all/c9cf3995f45c363e432b3ae8eb1275e54f009fc8.1636967198.git.matthias.schiffer@ew.tq-group.com Cc: stable@vger.kernel.org Signed-off-by: Matthias Schiffer Acked-by: Jarkko Nikula Reviewed-by: Jarkko Nikula Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/m_can/m_can_pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index 89cc3d41e952..d3c030a13cbe 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -18,7 +18,7 @@ #define M_CAN_PCI_MMIO_BAR 0 -#define M_CAN_CLOCK_FREQ_EHL 100000000 +#define M_CAN_CLOCK_FREQ_EHL 200000000 #define CTL_CSR_INT_CTL_OFFSET 0x508 struct m_can_pci_priv { From 081816acad36249ebab981ddbcd87e5b1250a201 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 18 Nov 2021 15:40:11 +0100 Subject: [PATCH 027/172] can: m_can: pci: fix iomap_read_fifo() and iomap_write_fifo() commit d737de2d7cc3efdacbf17d4e22efc75697bd76d9 upstream. The same fix that was previously done in m_can_platform in commit 99d173fbe894 ("can: m_can: fix iomap_read_fifo() and iomap_write_fifo()") is required in m_can_pci as well to make iomap_read_fifo() and iomap_write_fifo() work for val_count > 1. Fixes: 812270e5445b ("can: m_can: Batch FIFO writes during CAN transmit") Fixes: 1aa6772f64b4 ("can: m_can: Batch FIFO reads during CAN receive") Link: https://lore.kernel.org/all/20211118144011.10921-1-matthias.schiffer@ew.tq-group.com Cc: stable@vger.kernel.org Cc: Matt Kline Signed-off-by: Matthias Schiffer Tested-by: Jarkko Nikula Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/m_can/m_can_pci.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index d3c030a13cbe..8f184a852a0a 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -42,8 +42,13 @@ static u32 iomap_read_reg(struct m_can_classdev *cdev, int reg) static int iomap_read_fifo(struct m_can_classdev *cdev, int offset, void *val, size_t val_count) { struct m_can_pci_priv *priv = cdev_to_priv(cdev); + void __iomem *src = priv->base + offset; - ioread32_rep(priv->base + offset, val, val_count); + while (val_count--) { + *(unsigned int *)val = ioread32(src); + val += 4; + src += 4; + } return 0; } @@ -61,8 +66,13 @@ static int iomap_write_fifo(struct m_can_classdev *cdev, int offset, const void *val, size_t val_count) { struct m_can_pci_priv *priv = cdev_to_priv(cdev); + void __iomem *dst = priv->base + offset; - iowrite32_rep(priv->base + offset, val, val_count); + while (val_count--) { + iowrite32(*(unsigned int *)val, dst); + val += 4; + dst += 4; + } return 0; } From 5c960ae2c22a3f744866b6265251d53784a930db Mon Sep 17 00:00:00 2001 From: Brian Silverman Date: Mon, 29 Nov 2021 14:26:28 -0800 Subject: [PATCH 028/172] can: m_can: Disable and ignore ELO interrupt commit f58ac1adc76b5beda43c64ef359056077df4d93a upstream. With the design of this driver, this condition is often triggered. However, the counter that this interrupt indicates an overflow is never read either, so overflowing is harmless. On my system, when a CAN bus starts flapping up and down, this locks up the whole system with lots of interrupts and printks. Specifically, this interrupt indicates the CEL field of ECR has overflowed. All reads of ECR mask out CEL. Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support") Link: https://lore.kernel.org/all/20211129222628.7490-1-brian.silverman@bluerivertech.com Cc: stable@vger.kernel.org Signed-off-by: Brian Silverman Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/m_can/m_can.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index f4f54012dea7..e330b4c121bf 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -204,16 +204,16 @@ enum m_can_reg { /* Interrupts for version 3.0.x */ #define IR_ERR_LEC_30X (IR_STE | IR_FOE | IR_ACKE | IR_BE | IR_CRCE) -#define IR_ERR_BUS_30X (IR_ERR_LEC_30X | IR_WDI | IR_ELO | IR_BEU | \ - IR_BEC | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | \ - IR_RF1L | IR_RF0L) +#define IR_ERR_BUS_30X (IR_ERR_LEC_30X | IR_WDI | IR_BEU | IR_BEC | \ + IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \ + IR_RF0L) #define IR_ERR_ALL_30X (IR_ERR_STATE | IR_ERR_BUS_30X) /* Interrupts for version >= 3.1.x */ #define IR_ERR_LEC_31X (IR_PED | IR_PEA) -#define IR_ERR_BUS_31X (IR_ERR_LEC_31X | IR_WDI | IR_ELO | IR_BEU | \ - IR_BEC | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | \ - IR_RF1L | IR_RF0L) +#define IR_ERR_BUS_31X (IR_ERR_LEC_31X | IR_WDI | IR_BEU | IR_BEC | \ + IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \ + IR_RF0L) #define IR_ERR_ALL_31X (IR_ERR_STATE | IR_ERR_BUS_31X) /* Interrupt Line Select (ILS) */ @@ -812,8 +812,6 @@ static void m_can_handle_other_err(struct net_device *dev, u32 irqstatus) { if (irqstatus & IR_WDI) netdev_err(dev, "Message RAM Watchdog event due to missing READY\n"); - if (irqstatus & IR_ELO) - netdev_err(dev, "Error Logging Overflow\n"); if (irqstatus & IR_BEU) netdev_err(dev, "Bit Error Uncorrected\n"); if (irqstatus & IR_BEC) From f4b8f987a7482abe527e4ee6101b4ea1226fd46d Mon Sep 17 00:00:00 2001 From: "Russell King (Oracle)" Date: Tue, 7 Dec 2021 10:32:43 +0000 Subject: [PATCH 029/172] net: dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's" commit 2b29cb9e3f7f038c7f50ad2583b47caf5cb1eaf2 upstream. This commit fixes a misunderstanding in commit 4a3e0aeddf09 ("net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's"). For Marvell DSA switches with the PHY_DETECT bit (for non-6250 family devices), controls whether the PPU polls the PHY to retrieve the link, speed, duplex and pause status to update the port configuration. This applies for both internal and external PHYs. For some switches such as 88E6352 and 88E6390X, PHY_DETECT has an additional function of enabling auto-media mode between the internal PHY and SERDES blocks depending on which first gains link. The original intention of commit 5d5b231da7ac (net: dsa: mv88e6xxx: use PHY_DETECT in mac_link_up/mac_link_down) was to allow this bit to be used to detect when this propagation is enabled, and allow software to update the port configuration. This has found to be necessary for some switches which do not automatically propagate status from the SERDES to the port, which includes the 88E6390. However, commit 4a3e0aeddf09 ("net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's") breaks this assumption. Maarten Zanders has confirmed that the issue he was addressing was for an 88E6250 switch, which does not have a PHY_DETECT bit in bit 12, but instead a link status bit. Therefore, mv88e6xxx_port_ppu_updates() does not report correctly. This patch resolves the above issues by reverting Maarten's change and instead making mv88e6xxx_port_ppu_updates() indicate whether the port is internal for the 88E6250 family of switches. Yes, you're right, I'm targeting the 6250 family. And yes, your suggestion would solve my case and is a better implementation for the other devices (as far as I can see). Fixes: 4a3e0aeddf09 ("net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's") Signed-off-by: Russell King Tested-by: Maarten Zanders Link: https://lore.kernel.org/r/E1muXm7-00EwJB-7n@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/mv88e6xxx/chip.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index be8589fa86a1..adf28c005706 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -471,6 +471,12 @@ static int mv88e6xxx_port_ppu_updates(struct mv88e6xxx_chip *chip, int port) u16 reg; int err; + /* The 88e6250 family does not have the PHY detect bit. Instead, + * report whether the port is internal. + */ + if (chip->info->family == MV88E6XXX_FAMILY_6250) + return port < chip->info->num_internal_phys; + err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®); if (err) { dev_err(chip->dev, @@ -753,11 +759,10 @@ static void mv88e6xxx_mac_link_down(struct dsa_switch *ds, int port, ops = chip->info->ops; mv88e6xxx_reg_lock(chip); - /* Internal PHYs propagate their configuration directly to the MAC. - * External PHYs depend on whether the PPU is enabled for this port. + /* Force the link down if we know the port may not be automatically + * updated by the switch or if we are using fixed-link mode. */ - if (((!mv88e6xxx_phy_is_internal(ds, port) && - !mv88e6xxx_port_ppu_updates(chip, port)) || + if ((!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) && ops->port_sync_link) err = ops->port_sync_link(chip, port, mode, false); mv88e6xxx_reg_unlock(chip); @@ -780,11 +785,11 @@ static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port, ops = chip->info->ops; mv88e6xxx_reg_lock(chip); - /* Internal PHYs propagate their configuration directly to the MAC. - * External PHYs depend on whether the PPU is enabled for this port. + /* Configure and force the link up if we know that the port may not + * automatically updated by the switch or if we are using fixed-link + * mode. */ - if ((!mv88e6xxx_phy_is_internal(ds, port) && - !mv88e6xxx_port_ppu_updates(chip, port)) || + if (!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) { /* FIXME: for an automedia port, should we force the link * down here - what if the link comes up due to "other" media From bbf22d47bb3e922544c76fe34e26feff8c0dcae6 Mon Sep 17 00:00:00 2001 From: "Russell King (Oracle)" Date: Thu, 9 Dec 2021 09:26:47 +0000 Subject: [PATCH 030/172] net: dsa: mv88e6xxx: allow use of PHYs on CPU and DSA ports commit 04ec4e6250e5f58b525b08f3dca45c7d7427620e upstream. Martyn Welch reports that his CPU port is unable to link where it has been necessary to use one of the switch ports with an internal PHY for the CPU port. The reason behind this is the port control register is left forcing the link down, preventing traffic flow. This occurs because during initialisation, phylink expects the link to be down, and DSA forces the link down by synthesising a call to the DSA drivers phylink_mac_link_down() method, but we don't touch the forced-link state when we later reconfigure the port. Resolve this by also unforcing the link state when we are operating in PHY mode and the PPU is set to poll the PHY to retrieve link status information. Reported-by: Martyn Welch Tested-by: Martyn Welch Fixes: 3be98b2d5fbc ("net: dsa: Down cpu/dsa ports phylink will control") Cc: # 5.7: 2b29cb9e3f7f: net: dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's" Signed-off-by: Russell King (Oracle) Link: https://lore.kernel.org/r/E1mvFhP-00F8Zb-Ul@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/mv88e6xxx/chip.c | 62 +++++++++++++++++--------------- 1 file changed, 33 insertions(+), 29 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index adf28c005706..a31cc0ab7c62 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -699,44 +699,48 @@ static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port, { struct mv88e6xxx_chip *chip = ds->priv; struct mv88e6xxx_port *p; - int err; + int err = 0; p = &chip->ports[port]; - /* FIXME: is this the correct test? If we're in fixed mode on an - * internal port, why should we process this any different from - * PHY mode? On the other hand, the port may be automedia between - * an internal PHY and the serdes... - */ - if ((mode == MLO_AN_PHY) && mv88e6xxx_phy_is_internal(ds, port)) - return; - mv88e6xxx_reg_lock(chip); - /* In inband mode, the link may come up at any time while the link - * is not forced down. Force the link down while we reconfigure the - * interface mode. - */ - if (mode == MLO_AN_INBAND && p->interface != state->interface && - chip->info->ops->port_set_link) - chip->info->ops->port_set_link(chip, port, LINK_FORCED_DOWN); - err = mv88e6xxx_port_config_interface(chip, port, state->interface); - if (err && err != -EOPNOTSUPP) - goto err_unlock; + if (mode != MLO_AN_PHY || !mv88e6xxx_phy_is_internal(ds, port)) { + /* In inband mode, the link may come up at any time while the + * link is not forced down. Force the link down while we + * reconfigure the interface mode. + */ + if (mode == MLO_AN_INBAND && + p->interface != state->interface && + chip->info->ops->port_set_link) + chip->info->ops->port_set_link(chip, port, + LINK_FORCED_DOWN); - err = mv88e6xxx_serdes_pcs_config(chip, port, mode, state->interface, - state->advertising); - /* FIXME: we should restart negotiation if something changed - which - * is something we get if we convert to using phylinks PCS operations. - */ - if (err > 0) - err = 0; + err = mv88e6xxx_port_config_interface(chip, port, + state->interface); + if (err && err != -EOPNOTSUPP) + goto err_unlock; + + err = mv88e6xxx_serdes_pcs_config(chip, port, mode, + state->interface, + state->advertising); + /* FIXME: we should restart negotiation if something changed - + * which is something we get if we convert to using phylinks + * PCS operations. + */ + if (err > 0) + err = 0; + } /* Undo the forced down state above after completing configuration - * irrespective of its state on entry, which allows the link to come up. + * irrespective of its state on entry, which allows the link to come + * up in the in-band case where there is no separate SERDES. Also + * ensure that the link can come up if the PPU is in use and we are + * in PHY mode (we treat the PPU as an effective in-band mechanism.) */ - if (mode == MLO_AN_INBAND && p->interface != state->interface && - chip->info->ops->port_set_link) + if (chip->info->ops->port_set_link && + ((mode == MLO_AN_INBAND && p->interface != state->interface) || + (mode == MLO_AN_PHY && mv88e6xxx_port_ppu_updates(chip, port)))) chip->info->ops->port_set_link(chip, port, LINK_UNFORCED); p->interface = state->interface; From b964ecdb71d9a8f07e15427baeefb1195d854e13 Mon Sep 17 00:00:00 2001 From: Tom Lendacky Date: Wed, 20 Oct 2021 13:02:11 -0500 Subject: [PATCH 031/172] x86/sme: Explicitly map new EFI memmap table as encrypted commit 1ff2fc02862d52e18fd3daabcfe840ec27e920a8 upstream. Reserving memory using efi_mem_reserve() calls into the x86 efi_arch_mem_reserve() function. This function will insert a new EFI memory descriptor into the EFI memory map representing the area of memory to be reserved and marking it as EFI runtime memory. As part of adding this new entry, a new EFI memory map is allocated and mapped. The mapping is where a problem can occur. This new memory map is mapped using early_memremap() and generally mapped encrypted, unless the new memory for the mapping happens to come from an area of memory that is marked as EFI_BOOT_SERVICES_DATA memory. In this case, the new memory will be mapped unencrypted. However, during replacement of the old memory map, efi_mem_type() is disabled, so the new memory map will now be long-term mapped encrypted (in efi.memmap), resulting in the map containing invalid data and causing the kernel boot to crash. Since it is known that the area will be mapped encrypted going forward, explicitly map the new memory map as encrypted using early_memremap_prot(). Cc: # 4.14.x Fixes: 8f716c9b5feb ("x86/mm: Add support to access boot related data in the clear") Link: https://lore.kernel.org/all/ebf1eb2940405438a09d51d121ec0d02c8755558.1634752931.git.thomas.lendacky@amd.com/ Signed-off-by: Tom Lendacky [ardb: incorporate Kconfig fix by Arnd] Signed-off-by: Ard Biesheuvel Signed-off-by: Greg Kroah-Hartman --- arch/x86/Kconfig | 1 + arch/x86/platform/efi/quirks.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 6ce906815bb2..1f96809606ac 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1919,6 +1919,7 @@ config EFI depends on ACPI select UCS2_STRING select EFI_RUNTIME_WRAPPERS + select ARCH_USE_MEMREMAP_PROT help This enables the kernel to use EFI runtime services that are available (such as the EFI variable services). diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c index b15ebfe40a73..b0b848d6933a 100644 --- a/arch/x86/platform/efi/quirks.c +++ b/arch/x86/platform/efi/quirks.c @@ -277,7 +277,8 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size) return; } - new = early_memremap(data.phys_map, data.size); + new = early_memremap_prot(data.phys_map, data.size, + pgprot_val(pgprot_encrypted(FIXMAP_PAGE_NORMAL))); if (!new) { pr_err("Failed to map new boot services memmap\n"); return; From 0159c7b266830a082f73f0a48da3d21b5936bbec Mon Sep 17 00:00:00 2001 From: Fabrizio Bertocci Date: Mon, 29 Nov 2021 23:15:40 -0500 Subject: [PATCH 032/172] platform/x86: amd-pmc: Fix s2idle failures on certain AMD laptops commit 49201b90af818654c5506a0decc18e111eadcb66 upstream. On some AMD hardware laptops, the system fails communicating with the PMC when entering s2idle and the machine is battery powered. Hardware description: HP Pavilion Aero Laptop 13-be0097nr CPU: AMD Ryzen 7 5800U with Radeon Graphics GPU: 03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1638] (rev c1) Detailed description of the problem (and investigation) here: https://gitlab.freedesktop.org/drm/amd/-/issues/1799 Patch is a single line: reduce the polling delay in half, from 100uSec to 50uSec when waiting for a change in state from the PMC after a write command operation. After changing the delay, I did not see a single failure on this machine (I have this fix for now more than one week and s2idle worked every single time on battery power). Cc: stable@vger.kernel.org Acked-by: Shyam Sundar S K Signed-off-by: Fabrizio Bertocci Link: https://lore.kernel.org/r/CADtzkx7TdfbwtaVEXUdD6YXPey52E-nZVQNs+Z41DTx7gqMqtw@mail.gmail.com Signed-off-by: Hans de Goede Signed-off-by: Greg Kroah-Hartman --- drivers/platform/x86/amd-pmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c index fc95620101e8..54b88bedecdf 100644 --- a/drivers/platform/x86/amd-pmc.c +++ b/drivers/platform/x86/amd-pmc.c @@ -70,7 +70,7 @@ #define AMD_CPU_ID_CZN AMD_CPU_ID_RN #define AMD_CPU_ID_YC 0x14B5 -#define PMC_MSG_DELAY_MIN_US 100 +#define PMC_MSG_DELAY_MIN_US 50 #define RESPONSE_REGISTER_LOOP_MAX 20000 #define SOC_SUBSYSTEM_IP_MAX 12 From fae9705d281091254d4a81fa2da9d22346097dca Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 9 Dec 2021 09:13:07 +0100 Subject: [PATCH 033/172] nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done commit 4cd8371a234d051f9c9557fcbb1f8c523b1c0d10 upstream. The done() netlink callback nfc_genl_dump_ses_done() should check if received argument is non-NULL, because its allocation could fail earlier in dumpit() (nfc_genl_dump_ses()). Fixes: ac22ac466a65 ("NFC: Add a GET_SE netlink API") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20211209081307.57337-1-krzysztof.kozlowski@canonical.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/nfc/netlink.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index 49089c50872e..082085c25a8e 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -1392,8 +1392,10 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb) { struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0]; - nfc_device_iter_exit(iter); - kfree(iter); + if (iter) { + nfc_device_iter_exit(iter); + kfree(iter); + } return 0; } From cffab968e94e513bdcef25e11402243ce2919803 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Mon, 18 Oct 2021 14:38:13 +0200 Subject: [PATCH 034/172] selftests: netfilter: add a vrf+conntrack testcase commit 33b8aad21ac175eba9577a73eb62b0aa141c241c upstream. Rework the reproducer for the vrf+conntrack regression reported by Eugene into a selftest and also add a test for ip masquerading that Lahav fixed recently. With net or net-next tree, the first test fails and the latter two pass. With 09e856d54bda5f28 ("vrf: Reset skb conntrack connection on VRF rcv") reverted first test passes but the last two fail. A proper fix needs more work, for time being a revert seems to be the best choice, snat/masquerade did not work before the fix. Link: https://lore.kernel.org/netdev/378ca299-4474-7e9a-3d36-2350c8c98995@gmail.com/T/#m95358a31810df7392f541f99d187227bc75c9963 Reported-by: Eugene Crosser Cc: Lahav Schlesinger Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/netfilter/Makefile | 3 +- .../selftests/netfilter/conntrack_vrf.sh | 219 ++++++++++++++++++ 2 files changed, 221 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/netfilter/conntrack_vrf.sh diff --git a/tools/testing/selftests/netfilter/Makefile b/tools/testing/selftests/netfilter/Makefile index 8748199ac109..ffca314897c4 100644 --- a/tools/testing/selftests/netfilter/Makefile +++ b/tools/testing/selftests/netfilter/Makefile @@ -5,7 +5,8 @@ TEST_PROGS := nft_trans_stress.sh nft_fib.sh nft_nat.sh bridge_brouter.sh \ conntrack_icmp_related.sh nft_flowtable.sh ipvs.sh \ nft_concat_range.sh nft_conntrack_helper.sh \ nft_queue.sh nft_meta.sh nf_nat_edemux.sh \ - ipip-conntrack-mtu.sh conntrack_tcp_unreplied.sh + ipip-conntrack-mtu.sh conntrack_tcp_unreplied.sh \ + conntrack_vrf.sh LDLIBS = -lmnl TEST_GEN_FILES = nf-queue diff --git a/tools/testing/selftests/netfilter/conntrack_vrf.sh b/tools/testing/selftests/netfilter/conntrack_vrf.sh new file mode 100644 index 000000000000..91f3ef0f1192 --- /dev/null +++ b/tools/testing/selftests/netfilter/conntrack_vrf.sh @@ -0,0 +1,219 @@ +#!/bin/sh + +# This script demonstrates interaction of conntrack and vrf. +# The vrf driver calls the netfilter hooks again, with oif/iif +# pointing at the VRF device. +# +# For ingress, this means first iteration has iifname of lower/real +# device. In this script, thats veth0. +# Second iteration is iifname set to vrf device, tvrf in this script. +# +# For egress, this is reversed: first iteration has the vrf device, +# second iteration is done with the lower/real/veth0 device. +# +# test_ct_zone_in demonstrates unexpected change of nftables +# behavior # caused by commit 09e856d54bda5f28 "vrf: Reset skb conntrack +# connection on VRF rcv" +# +# It was possible to assign conntrack zone to a packet (or mark it for +# `notracking`) in the prerouting chain before conntrack, based on real iif. +# +# After the change, the zone assignment is lost and the zone is assigned based +# on the VRF master interface (in case such a rule exists). +# assignment is lost. Instead, assignment based on the `iif` matching +# Thus it is impossible to distinguish packets based on the original +# interface. +# +# test_masquerade_vrf and test_masquerade_veth0 demonstrate the problem +# that was supposed to be fixed by the commit mentioned above to make sure +# that any fix to test case 1 won't break masquerade again. + +ksft_skip=4 + +IP0=172.30.30.1 +IP1=172.30.30.2 +PFXL=30 +ret=0 + +sfx=$(mktemp -u "XXXXXXXX") +ns0="ns0-$sfx" +ns1="ns1-$sfx" + +cleanup() +{ + ip netns pids $ns0 | xargs kill 2>/dev/null + ip netns pids $ns1 | xargs kill 2>/dev/null + + ip netns del $ns0 $ns1 +} + +nft --version > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not run test without nft tool" + exit $ksft_skip +fi + +ip -Version > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not run test without ip tool" + exit $ksft_skip +fi + +ip netns add "$ns0" +if [ $? -ne 0 ];then + echo "SKIP: Could not create net namespace $ns0" + exit $ksft_skip +fi +ip netns add "$ns1" + +trap cleanup EXIT + +ip netns exec $ns0 sysctl -q -w net.ipv4.conf.default.rp_filter=0 +ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0 +ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0 + +ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not add veth device" + exit $ksft_skip +fi + +ip -net $ns0 li add tvrf type vrf table 9876 +if [ $? -ne 0 ];then + echo "SKIP: Could not add vrf device" + exit $ksft_skip +fi + +ip -net $ns0 li set lo up + +ip -net $ns0 li set veth0 master tvrf +ip -net $ns0 li set tvrf up +ip -net $ns0 li set veth0 up +ip -net $ns1 li set veth0 up + +ip -net $ns0 addr add $IP0/$PFXL dev veth0 +ip -net $ns1 addr add $IP1/$PFXL dev veth0 + +ip netns exec $ns1 iperf3 -s > /dev/null 2>&1& +if [ $? -ne 0 ];then + echo "SKIP: Could not start iperf3" + exit $ksft_skip +fi + +# test vrf ingress handling. +# The incoming connection should be placed in conntrack zone 1, +# as decided by the first iteration of the ruleset. +test_ct_zone_in() +{ +ip netns exec $ns0 nft -f - < /dev/null + + # should be in zone 1, not zone 2 + count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 1 2>/dev/null | wc -l) + if [ $count -eq 1 ]; then + echo "PASS: entry found in conntrack zone 1" + else + echo "FAIL: entry not found in conntrack zone 1" + count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 2 2> /dev/null | wc -l) + if [ $count -eq 1 ]; then + echo "FAIL: entry found in zone 2 instead" + else + echo "FAIL: entry not in zone 1 or 2, dumping table" + ip netns exec $ns0 conntrack -L + ip netns exec $ns0 nft list ruleset + fi + fi +} + +# add masq rule that gets evaluated w. outif set to vrf device. +# This tests the first iteration of the packet through conntrack, +# oifname is the vrf device. +test_masquerade_vrf() +{ + ip netns exec $ns0 conntrack -F 2>/dev/null + +ip netns exec $ns0 nft -f - </dev/null + if [ $? -ne 0 ]; then + echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on vrf device" + ret=1 + return + fi + + # must also check that nat table was evaluated on second (lower device) iteration. + ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2' + if [ $? -eq 0 ]; then + echo "PASS: iperf3 connect with masquerade + sport rewrite on vrf device" + else + echo "FAIL: vrf masq rule has unexpected counter value" + ret=1 + fi +} + +# add masq rule that gets evaluated w. outif set to veth device. +# This tests the 2nd iteration of the packet through conntrack, +# oifname is the lower device (veth0 in this case). +test_masquerade_veth() +{ + ip netns exec $ns0 conntrack -F 2>/dev/null +ip netns exec $ns0 nft -f - < /dev/null + if [ $? -ne 0 ]; then + echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on veth device" + ret=1 + return + fi + + # must also check that nat table was evaluated on second (lower device) iteration. + ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2' + if [ $? -eq 0 ]; then + echo "PASS: iperf3 connect with masquerade + sport rewrite on veth device" + else + echo "FAIL: vrf masq rule has unexpected counter value" + ret=1 + fi +} + +test_ct_zone_in +test_masquerade_vrf +test_masquerade_veth + +exit $ret From e8193cebf753360f6f96df967ad6cabaadc30bc4 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Fri, 26 Nov 2021 15:36:12 +0100 Subject: [PATCH 035/172] vrf: don't run conntrack on vrf with !dflt qdisc commit d43b75fbc23f0ac1ef9c14a5a166d3ccb761a451 upstream. After the below patch, the conntrack attached to skb is set to "notrack" in the context of vrf device, for locally generated packets. But this is true only when the default qdisc is set to the vrf device. When changing the qdisc, notrack is not set anymore. In fact, there is a shortcut in the vrf driver, when the default qdisc is set, see commit dcdd43c41e60 ("net: vrf: performance improvements for IPv4") for more details. This patch ensures that the behavior is always the same, whatever the qdisc is. To demonstrate the difference, a new test is added in conntrack_vrf.sh. Fixes: 8c9c296adfae ("vrf: run conntrack only in context of lower/physdev for locally generated packets") Signed-off-by: Nicolas Dichtel Acked-by: Florian Westphal Reviewed-by: David Ahern Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- drivers/net/vrf.c | 8 ++--- .../selftests/netfilter/conntrack_vrf.sh | 30 ++++++++++++++++--- 2 files changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 131c745dc701..b2242a082431 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -770,8 +770,6 @@ static struct sk_buff *vrf_ip6_out_direct(struct net_device *vrf_dev, skb->dev = vrf_dev; - vrf_nf_set_untracked(skb); - err = nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk, skb, NULL, vrf_dev, vrf_ip6_out_direct_finish); @@ -792,6 +790,8 @@ static struct sk_buff *vrf_ip6_out(struct net_device *vrf_dev, if (rt6_need_strict(&ipv6_hdr(skb)->daddr)) return skb; + vrf_nf_set_untracked(skb); + if (qdisc_tx_is_default(vrf_dev) || IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) return vrf_ip6_out_direct(vrf_dev, sk, skb); @@ -1000,8 +1000,6 @@ static struct sk_buff *vrf_ip_out_direct(struct net_device *vrf_dev, skb->dev = vrf_dev; - vrf_nf_set_untracked(skb); - err = nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, net, sk, skb, NULL, vrf_dev, vrf_ip_out_direct_finish); @@ -1023,6 +1021,8 @@ static struct sk_buff *vrf_ip_out(struct net_device *vrf_dev, ipv4_is_lbcast(ip_hdr(skb)->daddr)) return skb; + vrf_nf_set_untracked(skb); + if (qdisc_tx_is_default(vrf_dev) || IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) return vrf_ip_out_direct(vrf_dev, sk, skb); diff --git a/tools/testing/selftests/netfilter/conntrack_vrf.sh b/tools/testing/selftests/netfilter/conntrack_vrf.sh index 91f3ef0f1192..8b5ea9234588 100644 --- a/tools/testing/selftests/netfilter/conntrack_vrf.sh +++ b/tools/testing/selftests/netfilter/conntrack_vrf.sh @@ -150,11 +150,27 @@ EOF # oifname is the vrf device. test_masquerade_vrf() { + local qdisc=$1 + + if [ "$qdisc" != "default" ]; then + tc -net $ns0 qdisc add dev tvrf root $qdisc + fi + ip netns exec $ns0 conntrack -F 2>/dev/null ip netns exec $ns0 nft -f - < Date: Wed, 17 Nov 2021 13:57:08 +0100 Subject: [PATCH 036/172] bpf, x86: Fix "no previous prototype" warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit f45b2974cc0ae959a4c503a071e38a56bd64372f upstream. The arch_prepare_bpf_dispatcher function does not have a prototype, and yields the following warning when W=1 is enabled for the kernel build. >> arch/x86/net/bpf_jit_comp.c:2188:5: warning: no previous \ prototype for 'arch_prepare_bpf_dispatcher' [-Wmissing-prototypes] 2188 | int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, \ int num_funcs) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Remove the warning by adding a function declaration to include/linux/bpf.h. Fixes: 75ccbef6369e ("bpf: Introduce BPF dispatcher") Reported-by: kernel test robot Signed-off-by: Björn Töpel Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211117125708.769168-1-bjorn@kernel.org Signed-off-by: Greg Kroah-Hartman --- include/linux/bpf.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index bca11ac818c1..27850b0b535f 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -723,6 +723,7 @@ int bpf_trampoline_unlink_prog(struct bpf_prog *prog, struct bpf_trampoline *tr) struct bpf_trampoline *bpf_trampoline_get(u64 key, struct bpf_attach_target_info *tgt_info); void bpf_trampoline_put(struct bpf_trampoline *tr); +int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, int num_funcs); #define BPF_DISPATCHER_INIT(_name) { \ .mutex = __MUTEX_INITIALIZER(_name.mutex), \ .func = &_name##_func, \ From 9c983fd7cf97ee1329c5ce70674abf06b99c2222 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Fri, 19 Nov 2021 10:14:17 -0800 Subject: [PATCH 037/172] bpf, sockmap: Attach map progs to psock early for feature probes commit 38207a5e81230d6ffbdd51e5fa5681be5116dcae upstream. When a TCP socket is added to a sock map we look at the programs attached to the map to determine what proto op hooks need to be changed. Before the patch in the 'fixes' tag there were only two categories -- the empty set of programs or a TX policy. In any case the base set handled the receive case. After the fix we have an optimized program for receive that closes a small, but possible, race on receive. This program is loaded only when the map the psock is being added to includes a RX policy. Otherwise, the race is not possible so we don't need to handle the race condition. In order for the call to sk_psock_init() to correctly evaluate the above conditions all progs need to be set in the psock before the call. However, in the current code this is not the case. We end up evaluating the requirements on the old prog state. If your psock is attached to multiple maps -- for example a tx map and rx map -- then the second update would pull in the correct maps. But, the other pattern with a single rx enabled map the correct receive hooks are not used. The result is the race fixed by the patch in the fixes tag below may still be seen in this case. To fix we simply set all psock->progs before doing the call into sock_map_init(). With this the init() call gets the full list of programs and chooses the correct proto ops on the first iteration instead of requiring the second update to pull them in. This fixes the race case when only a single map is used. Fixes: c5d2177a72a16 ("bpf, sockmap: Fix race in ingress receive verdict with redirect to self") Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211119181418.353932-2-john.fastabend@gmail.com Signed-off-by: Greg Kroah-Hartman --- net/core/sock_map.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/net/core/sock_map.c b/net/core/sock_map.c index e252b8ec2b85..2884ac34d647 100644 --- a/net/core/sock_map.c +++ b/net/core/sock_map.c @@ -282,6 +282,12 @@ static int sock_map_link(struct bpf_map *map, struct sock *sk) if (msg_parser) psock_set_prog(&psock->progs.msg_parser, msg_parser); + if (stream_parser) + psock_set_prog(&psock->progs.stream_parser, stream_parser); + if (stream_verdict) + psock_set_prog(&psock->progs.stream_verdict, stream_verdict); + if (skb_verdict) + psock_set_prog(&psock->progs.skb_verdict, skb_verdict); ret = sock_map_init_proto(sk, psock); if (ret < 0) @@ -292,14 +298,10 @@ static int sock_map_link(struct bpf_map *map, struct sock *sk) ret = sk_psock_init_strp(sk, psock); if (ret) goto out_unlock_drop; - psock_set_prog(&psock->progs.stream_verdict, stream_verdict); - psock_set_prog(&psock->progs.stream_parser, stream_parser); sk_psock_start_strp(sk, psock); } else if (!stream_parser && stream_verdict && !psock->saved_data_ready) { - psock_set_prog(&psock->progs.stream_verdict, stream_verdict); sk_psock_start_verdict(sk,psock); } else if (!stream_verdict && skb_verdict && !psock->saved_data_ready) { - psock_set_prog(&psock->progs.skb_verdict, skb_verdict); sk_psock_start_verdict(sk, psock); } write_unlock_bh(&sk->sk_callback_lock); From e76da2e8a09a4ee289e0e90e61092f84feaeb120 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sat, 27 Nov 2021 17:32:00 +0100 Subject: [PATCH 038/172] bpf: Make sure bpf_disable_instrumentation() is safe vs preemption. commit 79364031c5b4365ca28ac0fa00acfab5bf465be1 upstream. The initial implementation of migrate_disable() for mainline was a wrapper around preempt_disable(). RT kernels substituted this with a real migrate disable implementation. Later on mainline gained true migrate disable support, but neither documentation nor affected code were updated. Remove stale comments claiming that migrate_disable() is PREEMPT_RT only. Don't use __this_cpu_inc() in the !PREEMPT_RT path because preemption is not disabled and the RMW operation can be preempted. Fixes: 74d862b682f51 ("sched: Make migrate_disable/enable() independent of RT") Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211127163200.10466-3-bigeasy@linutronix.de Signed-off-by: Greg Kroah-Hartman --- include/linux/bpf.h | 16 ++-------------- include/linux/filter.h | 3 --- 2 files changed, 2 insertions(+), 17 deletions(-) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 27850b0b535f..6c4640526f74 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -1321,28 +1321,16 @@ extern struct mutex bpf_stats_enabled_mutex; * kprobes, tracepoints) to prevent deadlocks on map operations as any of * these events can happen inside a region which holds a map bucket lock * and can deadlock on it. - * - * Use the preemption safe inc/dec variants on RT because migrate disable - * is preemptible on RT and preemption in the middle of the RMW operation - * might lead to inconsistent state. Use the raw variants for non RT - * kernels as migrate_disable() maps to preempt_disable() so the slightly - * more expensive save operation can be avoided. */ static inline void bpf_disable_instrumentation(void) { migrate_disable(); - if (IS_ENABLED(CONFIG_PREEMPT_RT)) - this_cpu_inc(bpf_prog_active); - else - __this_cpu_inc(bpf_prog_active); + this_cpu_inc(bpf_prog_active); } static inline void bpf_enable_instrumentation(void) { - if (IS_ENABLED(CONFIG_PREEMPT_RT)) - this_cpu_dec(bpf_prog_active); - else - __this_cpu_dec(bpf_prog_active); + this_cpu_dec(bpf_prog_active); migrate_enable(); } diff --git a/include/linux/filter.h b/include/linux/filter.h index 28391de6cc44..1611dc9d4420 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -639,9 +639,6 @@ static __always_inline u32 bpf_prog_run(const struct bpf_prog *prog, const void * This uses migrate_disable/enable() explicitly to document that the * invocation of a BPF program does not require reentrancy protection * against a BPF program which is invoked from a preempting task. - * - * For non RT enabled kernels migrate_disable/enable() maps to - * preempt_disable/enable(), i.e. it disables also preemption. */ static inline u32 bpf_prog_run_pin_on_cpu(const struct bpf_prog *prog, const void *ctx) From b4fb67fd1adf87be9e61486da8bddcc22e9c717c Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Tue, 30 Nov 2021 20:16:07 +0200 Subject: [PATCH 039/172] bpf: Fix the off-by-two error in range markings commit 2fa7d94afc1afbb4d702760c058dc2d7ed30f226 upstream. The first commit cited below attempts to fix the off-by-one error that appeared in some comparisons with an open range. Due to this error, arithmetically equivalent pieces of code could get different verdicts from the verifier, for example (pseudocode): // 1. Passes the verifier: if (data + 8 > data_end) return early read *(u64 *)data, i.e. [data; data+7] // 2. Rejected by the verifier (should still pass): if (data + 7 >= data_end) return early read *(u64 *)data, i.e. [data; data+7] The attempted fix, however, shifts the range by one in a wrong direction, so the bug not only remains, but also such piece of code starts failing in the verifier: // 3. Rejected by the verifier, but the check is stricter than in #1. if (data + 8 >= data_end) return early read *(u64 *)data, i.e. [data; data+7] The change performed by that fix converted an off-by-one bug into off-by-two. The second commit cited below added the BPF selftests written to ensure than code chunks like #3 are rejected, however, they should be accepted. This commit fixes the off-by-two error by adjusting new_range in the right direction and fixes the tests by changing the range into the one that should actually fail. Fixes: fb2a311a31d3 ("bpf: fix off by one for range markings with L{T, E} patterns") Fixes: b37242c773b2 ("bpf: add test cases to bpf selftests to cover all access tests") Signed-off-by: Maxim Mikityanskiy Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211130181607.593149-1-maximmi@nvidia.com Signed-off-by: Greg Kroah-Hartman --- kernel/bpf/verifier.c | 2 +- .../bpf/verifier/xdp_direct_packet_access.c | 32 +++++++++---------- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 390d5661cd70..8a0b4879790e 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -8228,7 +8228,7 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *vstate, new_range = dst_reg->off; if (range_right_open) - new_range--; + new_range++; /* Examples for register markings: * diff --git a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c index bfb97383e6b5..de172a5b8754 100644 --- a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c +++ b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c @@ -112,10 +112,10 @@ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data_end)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1), BPF_JMP_IMM(BPF_JA, 0, 0, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -167,10 +167,10 @@ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data_end)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1), BPF_JMP_IMM(BPF_JA, 0, 0, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -274,9 +274,9 @@ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data_end)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -437,9 +437,9 @@ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data_end)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -544,10 +544,10 @@ offsetof(struct xdp_md, data_meta)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1), BPF_JMP_IMM(BPF_JA, 0, 0, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -599,10 +599,10 @@ offsetof(struct xdp_md, data_meta)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1), BPF_JMP_IMM(BPF_JA, 0, 0, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -706,9 +706,9 @@ offsetof(struct xdp_md, data_meta)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, @@ -869,9 +869,9 @@ offsetof(struct xdp_md, data_meta)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1), - BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, From 9a7e323edb865ebf1223f17fe21072ab5d272d76 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Fri, 22 Oct 2021 17:28:17 -0700 Subject: [PATCH 040/172] ice: ignore dropped packets during init commit 28dc1b86f8ea9fd6f4c9e0b363db73ecabf84e22 upstream. If the hardware is constantly receiving unicast or broadcast packets during driver load, the device previously counted many GLV_RDPC (VSI dropped packets) events during init. This causes confusing dropped packet statistics during driver load. The dropped packets counter incrementing does stop once the driver finishes loading. Avoid this problem by baselining our statistics at the end of driver open instead of the end of probe. Fixes: cdedef59deb0 ("ice: Configure VSIs for Tx/Rx") Signed-off-by: Jesse Brandeburg Tested-by: Gurucharan G Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/ice/ice_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index f622ee20ac40..819c32a721e8 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -5621,6 +5621,9 @@ static int ice_up_complete(struct ice_vsi *vsi) netif_carrier_on(vsi->netdev); } + /* clear this now, and the first stats read will be used as baseline */ + vsi->stat_offsets_loaded = false; + ice_service_task_schedule(pf); return 0; From cfd719f04267108f5f5bf802b9d7de69e99a99f9 Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Fri, 3 Dec 2021 11:13:18 +0100 Subject: [PATCH 041/172] ethtool: do not perform operations on net devices being unregistered commit dde91ccfa25fd58f64c397d91b81a4b393100ffa upstream. There is a short period between a net device starts to be unregistered and when it is actually gone. In that time frame ethtool operations could still be performed, which might end up in unwanted or undefined behaviours[1]. Do not allow ethtool operations after a net device starts its unregistration. This patch targets the netlink part as the ioctl one isn't affected: the reference to the net device is taken and the operation is executed within an rtnl lock section and the net device won't be found after unregister. [1] For example adding Tx queues after unregister ends up in NULL pointer exceptions and UaFs, such as: BUG: KASAN: use-after-free in kobject_get+0x14/0x90 Read of size 1 at addr ffff88801961248c by task ethtool/755 CPU: 0 PID: 755 Comm: ethtool Not tainted 5.15.0-rc6+ #778 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/014 Call Trace: dump_stack_lvl+0x57/0x72 print_address_description.constprop.0+0x1f/0x140 kasan_report.cold+0x7f/0x11b kobject_get+0x14/0x90 kobject_add_internal+0x3d1/0x450 kobject_init_and_add+0xba/0xf0 netdev_queue_update_kobjects+0xcf/0x200 netif_set_real_num_tx_queues+0xb4/0x310 veth_set_channels+0x1c3/0x550 ethnl_set_channels+0x524/0x610 Fixes: 041b1c5d4a53 ("ethtool: helper functions for netlink interface") Suggested-by: Jakub Kicinski Signed-off-by: Antoine Tenart Link: https://lore.kernel.org/r/20211203101318.435618-1-atenart@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/ethtool/netlink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index 1797a0a90019..b3729bdafb60 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -40,7 +40,8 @@ int ethnl_ops_begin(struct net_device *dev) if (dev->dev.parent) pm_runtime_get_sync(dev->dev.parent); - if (!netif_device_present(dev)) { + if (!netif_device_present(dev) || + dev->reg_state == NETREG_UNREGISTERING) { ret = -ENODEV; goto err; } From 6dada2646a0abd81f4c1141a47f2786db6f85cd2 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 2 Dec 2021 18:27:18 -0800 Subject: [PATCH 042/172] bonding: make tx_rebalance_counter an atomic commit dac8e00fb640e9569cdeefd3ce8a75639e5d0711 upstream. KCSAN reported a data-race [1] around tx_rebalance_counter which can be accessed from different contexts, without the protection of a lock/mutex. [1] BUG: KCSAN: data-race in bond_alb_init_slave / bond_alb_monitor write to 0xffff888157e8ca24 of 4 bytes by task 7075 on cpu 0: bond_alb_init_slave+0x713/0x860 drivers/net/bonding/bond_alb.c:1613 bond_enslave+0xd94/0x3010 drivers/net/bonding/bond_main.c:1949 do_set_master net/core/rtnetlink.c:2521 [inline] __rtnl_newlink net/core/rtnetlink.c:3475 [inline] rtnl_newlink+0x1298/0x13b0 net/core/rtnetlink.c:3506 rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2491 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5589 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5fc/0x6c0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x6e1/0x7d0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x39a/0x510 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x195/0x230 net/socket.c:2492 __do_sys_sendmsg net/socket.c:2501 [inline] __se_sys_sendmsg net/socket.c:2499 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2499 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888157e8ca24 of 4 bytes by task 1082 on cpu 1: bond_alb_monitor+0x8f/0xc00 drivers/net/bonding/bond_alb.c:1511 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298 worker_thread+0x616/0xa70 kernel/workqueue.c:2445 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 value changed: 0x00000001 -> 0x00000064 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1082 Comm: kworker/u4:3 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bond1 bond_alb_monitor Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/bonding/bond_alb.c | 14 ++++++++------ include/net/bond_alb.h | 2 +- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 7d3752cbf761..bca36be884b8 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1502,14 +1502,14 @@ void bond_alb_monitor(struct work_struct *work) struct slave *slave; if (!bond_has_slaves(bond)) { - bond_info->tx_rebalance_counter = 0; + atomic_set(&bond_info->tx_rebalance_counter, 0); bond_info->lp_counter = 0; goto re_arm; } rcu_read_lock(); - bond_info->tx_rebalance_counter++; + atomic_inc(&bond_info->tx_rebalance_counter); bond_info->lp_counter++; /* send learning packets */ @@ -1531,7 +1531,7 @@ void bond_alb_monitor(struct work_struct *work) } /* rebalance tx traffic */ - if (bond_info->tx_rebalance_counter >= BOND_TLB_REBALANCE_TICKS) { + if (atomic_read(&bond_info->tx_rebalance_counter) >= BOND_TLB_REBALANCE_TICKS) { bond_for_each_slave_rcu(bond, slave, iter) { tlb_clear_slave(bond, slave, 1); if (slave == rcu_access_pointer(bond->curr_active_slave)) { @@ -1541,7 +1541,7 @@ void bond_alb_monitor(struct work_struct *work) bond_info->unbalanced_load = 0; } } - bond_info->tx_rebalance_counter = 0; + atomic_set(&bond_info->tx_rebalance_counter, 0); } if (bond_info->rlb_enabled) { @@ -1611,7 +1611,8 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave) tlb_init_slave(slave); /* order a rebalance ASAP */ - bond->alb_info.tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS; + atomic_set(&bond->alb_info.tx_rebalance_counter, + BOND_TLB_REBALANCE_TICKS); if (bond->alb_info.rlb_enabled) bond->alb_info.rlb_rebalance = 1; @@ -1648,7 +1649,8 @@ void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char rlb_clear_slave(bond, slave); } else if (link == BOND_LINK_UP) { /* order a rebalance ASAP */ - bond_info->tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS; + atomic_set(&bond_info->tx_rebalance_counter, + BOND_TLB_REBALANCE_TICKS); if (bond->alb_info.rlb_enabled) { bond->alb_info.rlb_rebalance = 1; /* If the updelay module parameter is smaller than the diff --git a/include/net/bond_alb.h b/include/net/bond_alb.h index f6af76c87a6c..191c36afa1f4 100644 --- a/include/net/bond_alb.h +++ b/include/net/bond_alb.h @@ -126,7 +126,7 @@ struct tlb_slave_info { struct alb_bond_info { struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */ u32 unbalanced_load; - int tx_rebalance_counter; + atomic_t tx_rebalance_counter; int lp_counter; /* -------- rlb parameters -------- */ int rlb_enabled; From f707820c09239d6f67699d9b2ff57863cc7905b0 Mon Sep 17 00:00:00 2001 From: Jianglei Nie Date: Thu, 9 Dec 2021 14:15:11 +0800 Subject: [PATCH 043/172] nfp: Fix memory leak in nfp_cpp_area_cache_add() commit c56c96303e9289cc34716b1179597b6f470833de upstream. In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a CPP area structure. But in line 807 (#2), when the cache is allocated failed, this CPP area structure is not freed, which will result in memory leak. We can fix it by freeing the CPP area when the cache is allocated failed (#2). 792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) 793 { 794 struct nfp_cpp_area_cache *cache; 795 struct nfp_cpp_area *area; 800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0), 801 0, size); // #1: allocates and initializes 802 if (!area) 803 return -ENOMEM; 805 cache = kzalloc(sizeof(*cache), GFP_KERNEL); 806 if (!cache) 807 return -ENOMEM; // #2: missing free 817 return 0; 818 } Fixes: 4cb584e0ee7d ("nfp: add CPP access core") Signed-off-by: Jianglei Nie Acked-by: Simon Horman Link: https://lore.kernel.org/r/20211209061511.122535-1-niejianglei2021@163.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c index d7ac0307797f..34c0d2ddf9ef 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c @@ -803,8 +803,10 @@ int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) return -ENOMEM; cache = kzalloc(sizeof(*cache), GFP_KERNEL); - if (!cache) + if (!cache) { + nfp_cpp_area_free(area); return -ENOMEM; + } cache->id = 0; cache->addr = 0; From 98adb2bbfa407c9290bda299d4c6f7a1c4ebd5e1 Mon Sep 17 00:00:00 2001 From: Andrea Mayer Date: Wed, 8 Dec 2021 20:54:09 +0100 Subject: [PATCH 044/172] seg6: fix the iif in the IPv6 socket control block commit ae68d93354e5bf5191ee673982251864ea24dd5c upstream. When an IPv4 packet is received, the ip_rcv_core(...) sets the receiving interface index into the IPv4 socket control block (v5.16-rc4, net/ipv4/ip_input.c line 510): IPCB(skb)->iif = skb->skb_iif; If that IPv4 packet is meant to be encapsulated in an outer IPv6+SRH header, the seg6_do_srh_encap(...) performs the required encapsulation. In this case, the seg6_do_srh_encap function clears the IPv6 socket control block (v5.16-rc4 net/ipv6/seg6_iptunnel.c line 163): memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); The memset(...) was introduced in commit ef489749aae5 ("ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation") a long time ago (2019-01-29). Since the IPv6 socket control block and the IPv4 socket control block share the same memory area (skb->cb), the receiving interface index info is lost (IP6CB(skb)->iif is set to zero). As a side effect, that condition triggers a NULL pointer dereference if commit 0857d6f8c759 ("ipv6: When forwarding count rx stats on the orig netdev") is applied. To fix that issue, we set the IP6CB(skb)->iif with the index of the receiving interface once again. Fixes: ef489749aae5 ("ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation") Signed-off-by: Andrea Mayer Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20211208195409.12169-1-andrea.mayer@uniroma2.it Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/ipv6/seg6_iptunnel.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c index 3adc5d9211ad..d64855010948 100644 --- a/net/ipv6/seg6_iptunnel.c +++ b/net/ipv6/seg6_iptunnel.c @@ -161,6 +161,14 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto) hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb)); memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); + + /* the control block has been erased, so we have to set the + * iif once again. + * We read the receiving interface index directly from the + * skb->skb_iif as it is done in the IPv4 receiving path (i.e.: + * ip_rcv_core(...)). + */ + IP6CB(skb)->iif = skb->skb_iif; } hdr->nexthdr = NEXTHDR_ROUTING; From e6182c63d827ed556bd5a493b63ddc7b2c999ae5 Mon Sep 17 00:00:00 2001 From: Jianguo Wu Date: Wed, 8 Dec 2021 18:03:33 +0800 Subject: [PATCH 045/172] udp: using datalen to cap max gso segments commit 158390e45612ef0fde160af0826f1740c36daf21 upstream. The max number of UDP gso segments is intended to cap to UDP_MAX_SEGMENTS, this is checked in udp_send_skb(): if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) { kfree_skb(skb); return -EINVAL; } skb->len contains network and transport header len here, we should use only data len instead. Fixes: bec1f6f69736 ("udp: generate gso with UDP_SEGMENT") Signed-off-by: Jianguo Wu Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/900742e5-81fb-30dc-6e0b-375c6cdd7982@163.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/ipv4/udp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 2ce3fca545d3..3f6823bdd31e 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -917,7 +917,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4, kfree_skb(skb); return -EINVAL; } - if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) { + if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) { kfree_skb(skb); return -EINVAL; } From d2cd7c7f8f83b057fefa0b0e69a4a66969ffb8f5 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 30 Nov 2021 11:34:04 +0100 Subject: [PATCH 046/172] netfilter: nft_exthdr: break evaluation if setting TCP option fails commit 962e5a40358787105f126ab1dc01604da3d169e9 upstream. Break rule evaluation on malformed TCP options. Fixes: 99d1712bc41c ("netfilter: exthdr: tcp option set support") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/nft_exthdr.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c index af4ee874a067..dbe1f2e7dd9e 100644 --- a/net/netfilter/nft_exthdr.c +++ b/net/netfilter/nft_exthdr.c @@ -236,7 +236,7 @@ static void nft_exthdr_tcp_set_eval(const struct nft_expr *expr, tcph = nft_tcp_header_pointer(pkt, sizeof(buff), buff, &tcphdr_len); if (!tcph) - return; + goto err; opt = (u8 *)tcph; for (i = sizeof(*tcph); i < tcphdr_len - 1; i += optl) { @@ -251,16 +251,16 @@ static void nft_exthdr_tcp_set_eval(const struct nft_expr *expr, continue; if (i + optl > tcphdr_len || priv->len + priv->offset > optl) - return; + goto err; if (skb_ensure_writable(pkt->skb, nft_thoff(pkt) + i + priv->len)) - return; + goto err; tcph = nft_tcp_header_pointer(pkt, sizeof(buff), buff, &tcphdr_len); if (!tcph) - return; + goto err; offset = i + priv->offset; @@ -303,6 +303,9 @@ static void nft_exthdr_tcp_set_eval(const struct nft_expr *expr, return; } + return; +err: + regs->verdict.code = NFT_BREAK; } static void nft_exthdr_sctp_eval(const struct nft_expr *expr, From be2b5a78a0c1eb813796eb33fadafc500a6f977e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 7 Dec 2021 10:03:23 -0800 Subject: [PATCH 047/172] netfilter: conntrack: annotate data-races around ct->timeout commit 802a7dc5cf1bef06f7b290ce76d478138408d6b1 upstream. (struct nf_conn)->timeout can be read/written locklessly, add READ_ONCE()/WRITE_ONCE() to prevent load/store tearing. BUG: KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get write to 0xffff888132e78c08 of 4 bytes by task 6029 on cpu 0: __nf_conntrack_alloc+0x158/0x280 net/netfilter/nf_conntrack_core.c:1563 init_conntrack+0x1da/0xb30 net/netfilter/nf_conntrack_core.c:1635 resolve_normal_ct+0x502/0x610 net/netfilter/nf_conntrack_core.c:1746 nf_conntrack_in+0x1c5/0x88f net/netfilter/nf_conntrack_core.c:1901 ipv6_conntrack_local+0x19/0x20 net/netfilter/nf_conntrack_proto.c:414 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0x72/0x170 net/netfilter/core.c:619 nf_hook include/linux/netfilter.h:262 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ip6_xmit+0xa3a/0xa60 net/ipv6/ip6_output.c:324 inet6_csk_xmit+0x1a2/0x1e0 net/ipv6/inet6_connection_sock.c:135 __tcp_transmit_skb+0x132a/0x1840 net/ipv4/tcp_output.c:1402 tcp_transmit_skb net/ipv4/tcp_output.c:1420 [inline] tcp_write_xmit+0x1450/0x4460 net/ipv4/tcp_output.c:2680 __tcp_push_pending_frames+0x68/0x1c0 net/ipv4/tcp_output.c:2864 tcp_push_pending_frames include/net/tcp.h:1897 [inline] tcp_data_snd_check+0x62/0x2e0 net/ipv4/tcp_input.c:5452 tcp_rcv_established+0x880/0x10e0 net/ipv4/tcp_input.c:5947 tcp_v6_do_rcv+0x36e/0xa50 net/ipv6/tcp_ipv6.c:1521 sk_backlog_rcv include/net/sock.h:1030 [inline] __release_sock+0xf2/0x270 net/core/sock.c:2768 release_sock+0x40/0x110 net/core/sock.c:3300 sk_stream_wait_memory+0x435/0x700 net/core/stream.c:145 tcp_sendmsg_locked+0xb85/0x25a0 net/ipv4/tcp.c:1402 tcp_sendmsg+0x2c/0x40 net/ipv4/tcp.c:1440 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:644 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] __sys_sendto+0x21e/0x2c0 net/socket.c:2036 __do_sys_sendto net/socket.c:2048 [inline] __se_sys_sendto net/socket.c:2044 [inline] __x64_sys_sendto+0x74/0x90 net/socket.c:2044 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888132e78c08 of 4 bytes by task 17446 on cpu 1: nf_ct_is_expired include/net/netfilter/nf_conntrack.h:286 [inline] ____nf_conntrack_find net/netfilter/nf_conntrack_core.c:776 [inline] __nf_conntrack_find_get+0x1c7/0xac0 net/netfilter/nf_conntrack_core.c:807 resolve_normal_ct+0x273/0x610 net/netfilter/nf_conntrack_core.c:1734 nf_conntrack_in+0x1c5/0x88f net/netfilter/nf_conntrack_core.c:1901 ipv6_conntrack_local+0x19/0x20 net/netfilter/nf_conntrack_proto.c:414 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0x72/0x170 net/netfilter/core.c:619 nf_hook include/linux/netfilter.h:262 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ip6_xmit+0xa3a/0xa60 net/ipv6/ip6_output.c:324 inet6_csk_xmit+0x1a2/0x1e0 net/ipv6/inet6_connection_sock.c:135 __tcp_transmit_skb+0x132a/0x1840 net/ipv4/tcp_output.c:1402 __tcp_send_ack+0x1fd/0x300 net/ipv4/tcp_output.c:3956 tcp_send_ack+0x23/0x30 net/ipv4/tcp_output.c:3962 __tcp_ack_snd_check+0x2d8/0x510 net/ipv4/tcp_input.c:5478 tcp_ack_snd_check net/ipv4/tcp_input.c:5523 [inline] tcp_rcv_established+0x8c2/0x10e0 net/ipv4/tcp_input.c:5948 tcp_v6_do_rcv+0x36e/0xa50 net/ipv6/tcp_ipv6.c:1521 sk_backlog_rcv include/net/sock.h:1030 [inline] __release_sock+0xf2/0x270 net/core/sock.c:2768 release_sock+0x40/0x110 net/core/sock.c:3300 tcp_sendpage+0x94/0xb0 net/ipv4/tcp.c:1114 inet_sendpage+0x7f/0xc0 net/ipv4/af_inet.c:833 rds_tcp_xmit+0x376/0x5f0 net/rds/tcp_send.c:118 rds_send_xmit+0xbed/0x1500 net/rds/send.c:367 rds_send_worker+0x43/0x200 net/rds/threads.c:200 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298 worker_thread+0x616/0xa70 kernel/workqueue.c:2445 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 value changed: 0x00027cc2 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 17446 Comm: kworker/u4:5 Tainted: G W 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_send_worker Note: I chose an arbitrary commit for the Fixes: tag, because I do not think we need to backport this fix to very old kernels. Fixes: e37542ba111f ("netfilter: conntrack: avoid possible false sharing") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- include/net/netfilter/nf_conntrack.h | 6 +++--- net/netfilter/nf_conntrack_core.c | 6 +++--- net/netfilter/nf_conntrack_netlink.c | 2 +- net/netfilter/nf_flow_table_core.c | 4 ++-- 4 files changed, 9 insertions(+), 9 deletions(-) diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index cc663c68ddc4..d24b0a34c8f0 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -276,14 +276,14 @@ static inline bool nf_is_loopback_packet(const struct sk_buff *skb) /* jiffies until ct expires, 0 if already expired */ static inline unsigned long nf_ct_expires(const struct nf_conn *ct) { - s32 timeout = ct->timeout - nfct_time_stamp; + s32 timeout = READ_ONCE(ct->timeout) - nfct_time_stamp; return timeout > 0 ? timeout : 0; } static inline bool nf_ct_is_expired(const struct nf_conn *ct) { - return (__s32)(ct->timeout - nfct_time_stamp) <= 0; + return (__s32)(READ_ONCE(ct->timeout) - nfct_time_stamp) <= 0; } /* use after obtaining a reference count */ @@ -302,7 +302,7 @@ static inline bool nf_ct_should_gc(const struct nf_conn *ct) static inline void nf_ct_offload_timeout(struct nf_conn *ct) { if (nf_ct_expires(ct) < NF_CT_DAY / 2) - ct->timeout = nfct_time_stamp + NF_CT_DAY; + WRITE_ONCE(ct->timeout, nfct_time_stamp + NF_CT_DAY); } struct kernel_param; diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 770a63103c7a..4712a90a1820 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -684,7 +684,7 @@ bool nf_ct_delete(struct nf_conn *ct, u32 portid, int report) tstamp = nf_conn_tstamp_find(ct); if (tstamp) { - s32 timeout = ct->timeout - nfct_time_stamp; + s32 timeout = READ_ONCE(ct->timeout) - nfct_time_stamp; tstamp->stop = ktime_get_real_ns(); if (timeout < 0) @@ -1036,7 +1036,7 @@ static int nf_ct_resolve_clash_harder(struct sk_buff *skb, u32 repl_idx) } /* We want the clashing entry to go away real soon: 1 second timeout. */ - loser_ct->timeout = nfct_time_stamp + HZ; + WRITE_ONCE(loser_ct->timeout, nfct_time_stamp + HZ); /* IPS_NAT_CLASH removes the entry automatically on the first * reply. Also prevents UDP tracker from moving the entry to @@ -1560,7 +1560,7 @@ __nf_conntrack_alloc(struct net *net, /* save hash for reusing when confirming */ *(unsigned long *)(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode.pprev) = hash; ct->status = 0; - ct->timeout = 0; + WRITE_ONCE(ct->timeout, 0); write_pnet(&ct->ct_net, net); memset(&ct->__nfct_init_offset, 0, offsetof(struct nf_conn, proto) - diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index c7708bde057c..81d03acf68d4 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -1998,7 +1998,7 @@ static int ctnetlink_change_timeout(struct nf_conn *ct, if (timeout > INT_MAX) timeout = INT_MAX; - ct->timeout = nfct_time_stamp + (u32)timeout; + WRITE_ONCE(ct->timeout, nfct_time_stamp + (u32)timeout); if (test_bit(IPS_DYING_BIT, &ct->status)) return -ETIME; diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c index 87a7388b6c89..ed37bb9b4e58 100644 --- a/net/netfilter/nf_flow_table_core.c +++ b/net/netfilter/nf_flow_table_core.c @@ -201,8 +201,8 @@ static void flow_offload_fixup_ct_timeout(struct nf_conn *ct) if (timeout < 0) timeout = 0; - if (nf_flow_timeout_delta(ct->timeout) > (__s32)timeout) - ct->timeout = nfct_time_stamp + timeout; + if (nf_flow_timeout_delta(READ_ONCE(ct->timeout)) > (__s32)timeout) + WRITE_ONCE(ct->timeout, nfct_time_stamp + timeout); } static void flow_offload_fixup_ct_state(struct nf_conn *ct) From d0ed80e3ca8888c905318cf0390d8e00c1534571 Mon Sep 17 00:00:00 2001 From: Mitch Williams Date: Fri, 4 Jun 2021 09:53:28 -0700 Subject: [PATCH 048/172] iavf: restore MSI state on reset commit 7e4dcc13965c57869684d57a1dc6dd7be589488c upstream. If the PF experiences an FLR, the VF's MSI and MSI-X configuration will be conveniently and silently removed in the process. When this happens, reset recovery will appear to complete normally but no traffic will pass. The netdev watchdog will helpfully notify everyone of this issue. To prevent such public embarrassment, restore MSI configuration at every reset. For normal resets, this will do no harm, but for VF resets resulting from a PF FLR, this will keep the VF working. Fixes: 5eae00c57f5e ("i40evf: main driver core") Signed-off-by: Mitch Williams Tested-by: George Kuruvinakunnel Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/iavf/iavf_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index fd3717ae70ab..4f3b025daa14 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -2199,6 +2199,7 @@ static void iavf_reset_task(struct work_struct *work) } pci_set_master(adapter->pdev); + pci_restore_msi_state(adapter->pdev); if (i == IAVF_RESET_WAIT_COMPLETE_COUNT) { dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n", From 20791287eda15cb7c18505fcf70ac3f5c77e059a Mon Sep 17 00:00:00 2001 From: Michal Maloszewski Date: Tue, 26 Oct 2021 12:59:09 +0000 Subject: [PATCH 049/172] iavf: Fix reporting when setting descriptor count commit 1a1aa356ddf3f16539f5962c01c5f702686dfc15 upstream. iavf_set_ringparams doesn't communicate to the user that 1. The user requested descriptor count is out of range. Instead it just quietly sets descriptors to the "clamped" value and calls it done. This makes it look an invalid value was successfully set as the descriptor count when this isn't actually true. 2. The user provided descriptor count needs to be inflated for alignment reasons. This behavior is confusing. The ice driver has already addressed this by rejecting invalid values for descriptor count and messaging for alignment adjustments. Do the same thing here by adding the error and info messages. Fixes: fbb7ddfef253 ("i40evf: core ethtool functionality") Signed-off-by: Anirudh Venkataramanan Signed-off-by: Michal Maloszewski Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- .../net/ethernet/intel/iavf/iavf_ethtool.c | 43 ++++++++++++++----- 1 file changed, 32 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c index 0cecaff38d04..461f5237a2f8 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c @@ -615,23 +615,44 @@ static int iavf_set_ringparam(struct net_device *netdev, if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) return -EINVAL; - new_tx_count = clamp_t(u32, ring->tx_pending, - IAVF_MIN_TXD, - IAVF_MAX_TXD); - new_tx_count = ALIGN(new_tx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE); + if (ring->tx_pending > IAVF_MAX_TXD || + ring->tx_pending < IAVF_MIN_TXD || + ring->rx_pending > IAVF_MAX_RXD || + ring->rx_pending < IAVF_MIN_RXD) { + netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n", + ring->tx_pending, ring->rx_pending, IAVF_MIN_TXD, + IAVF_MAX_RXD, IAVF_REQ_DESCRIPTOR_MULTIPLE); + return -EINVAL; + } - new_rx_count = clamp_t(u32, ring->rx_pending, - IAVF_MIN_RXD, - IAVF_MAX_RXD); - new_rx_count = ALIGN(new_rx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE); + new_tx_count = ALIGN(ring->tx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE); + if (new_tx_count != ring->tx_pending) + netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n", + new_tx_count); + + new_rx_count = ALIGN(ring->rx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE); + if (new_rx_count != ring->rx_pending) + netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n", + new_rx_count); /* if nothing to do return success */ if ((new_tx_count == adapter->tx_desc_count) && - (new_rx_count == adapter->rx_desc_count)) + (new_rx_count == adapter->rx_desc_count)) { + netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n"); return 0; + } - adapter->tx_desc_count = new_tx_count; - adapter->rx_desc_count = new_rx_count; + if (new_tx_count != adapter->tx_desc_count) { + netdev_dbg(netdev, "Changing Tx descriptor count from %d to %d\n", + adapter->tx_desc_count, new_tx_count); + adapter->tx_desc_count = new_tx_count; + } + + if (new_rx_count != adapter->rx_desc_count) { + netdev_dbg(netdev, "Changing Rx descriptor count from %d to %d\n", + adapter->rx_desc_count, new_rx_count); + adapter->rx_desc_count = new_rx_count; + } if (netif_running(netdev)) { adapter->flags |= IAVF_FLAG_RESET_NEEDED; From f9a22d3ed85500d5807c1012160abe6bdcd4ee1c Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 29 Nov 2021 14:19:52 -0500 Subject: [PATCH 050/172] IB/hfi1: Correct guard on eager buffer deallocation commit 9292f8f9a2ac42eb320bced7153aa2e63d8cc13a upstream. The code tests the dma address which legitimately can be 0. The code should test the kernel logical address to avoid leaking eager buffer allocations that happen to map to a dma address of 0. Fixes: 60368186fd85 ("IB/hfi1: Fix user-space buffers mapping with IOMMU enabled") Link: https://lore.kernel.org/r/20211129191952.101968.17137.stgit@awfm-01.cornelisnetworks.com Signed-off-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/hfi1/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index a2e898525325..ec2a45c5cf57 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -1106,7 +1106,7 @@ void hfi1_free_ctxtdata(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd) rcd->egrbufs.rcvtids = NULL; for (e = 0; e < rcd->egrbufs.alloced; e++) { - if (rcd->egrbufs.buffers[e].dma) + if (rcd->egrbufs.buffers[e].addr) dma_free_coherent(&dd->pcidev->dev, rcd->egrbufs.buffers[e].len, rcd->egrbufs.buffers[e].addr, From fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 5 Dec 2021 11:28:22 -0800 Subject: [PATCH 051/172] devlink: fix netns refcount leak in devlink_nl_cmd_reload() commit 4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186 upstream. While preparing my patch series adding netns refcount tracking, I spotted bugs in devlink_nl_cmd_reload() Some error paths forgot to release a refcount on a netns. To fix this, we can reduce the scope of get_net()/put_net() section around the call to devlink_reload(). Fixes: ccdf07219da6 ("devlink: Add reload action option to devlink reload command") Fixes: dc64cc7c6310 ("devlink: Add devlink reload limit option") Signed-off-by: Eric Dumazet Cc: Moshe Shemesh Cc: Jacob Keller Cc: Jiri Pirko Reviewed-by: Leon Romanovsky Link: https://lore.kernel.org/r/20211205192822.1741045-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/core/devlink.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/net/core/devlink.c b/net/core/devlink.c index a856ae401ea5..6931713e363f 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -4031,14 +4031,6 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) return err; } - if (info->attrs[DEVLINK_ATTR_NETNS_PID] || - info->attrs[DEVLINK_ATTR_NETNS_FD] || - info->attrs[DEVLINK_ATTR_NETNS_ID]) { - dest_net = devlink_netns_get(skb, info); - if (IS_ERR(dest_net)) - return PTR_ERR(dest_net); - } - if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); else @@ -4081,6 +4073,14 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } } + if (info->attrs[DEVLINK_ATTR_NETNS_PID] || + info->attrs[DEVLINK_ATTR_NETNS_FD] || + info->attrs[DEVLINK_ATTR_NETNS_ID]) { + dest_net = devlink_netns_get(skb, info); + if (IS_ERR(dest_net)) + return PTR_ERR(dest_net); + } + err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); if (dest_net) From 76e414aa2a24fe7025693d6cc95c7cfddac256c5 Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Fri, 3 Dec 2021 11:31:06 +0800 Subject: [PATCH 052/172] net: bcm4908: Handle dma_set_coherent_mask error codes commit 128f6ec95a282b2d8bc1041e59bf65810703fa44 upstream. The return value of dma_set_coherent_mask() is not always 0. To catch the exception in case that dma is not support the mask. Fixes: 9d61d138ab30 ("net: broadcom: rename BCM4908 driver & update DT binding") Signed-off-by: Jiasheng Jiang Acked-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c index 02a569500234..376f81796a29 100644 --- a/drivers/net/ethernet/broadcom/bcm4908_enet.c +++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c @@ -708,7 +708,9 @@ static int bcm4908_enet_probe(struct platform_device *pdev) enet->irq_tx = platform_get_irq_byname(pdev, "tx"); - dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + err = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (err) + return err; err = bcm4908_enet_dma_alloc(enet); if (err) From bfc017140aa7a79fb67a08f4038d559f15875554 Mon Sep 17 00:00:00 2001 From: Ameer Hamza Date: Thu, 9 Dec 2021 09:15:52 +0500 Subject: [PATCH 053/172] net: dsa: mv88e6xxx: error handling for serdes_power functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 0416e7af2369b0d12a28dea8d30b104df9a6953d upstream. Added default case to handle undefined cmode scenario in mv88e6393x_serdes_power() and mv88e6393x_serdes_power() methods. Addresses-Coverity: 1494644 ("Uninitialized scalar variable") Fixes: 21635d9203e1c (net: dsa: mv88e6xxx: Fix application of erratum 4.8 for 88E6393X) Reviewed-by: Marek Behún Signed-off-by: Ameer Hamza Link: https://lore.kernel.org/r/20211209041552.9810-1-amhamza.mgc@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/mv88e6xxx/serdes.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 55273013bfb5..2b05ead515cd 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -830,7 +830,7 @@ int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, bool up) { u8 cmode = chip->ports[port].cmode; - int err = 0; + int err; switch (cmode) { case MV88E6XXX_PORT_STS_CMODE_SGMII: @@ -842,6 +842,9 @@ int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, case MV88E6XXX_PORT_STS_CMODE_RXAUI: err = mv88e6390_serdes_power_10g(chip, lane, up); break; + default: + err = -EINVAL; + break; } if (!err && up) @@ -1541,6 +1544,9 @@ int mv88e6393x_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, case MV88E6393X_PORT_STS_CMODE_10GBASER: err = mv88e6390_serdes_power_10g(chip, lane, on); break; + default: + err = -EINVAL; + break; } if (err) From 973a0373e88cc19129bd6ef0ec193040535397d9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= Date: Thu, 9 Dec 2021 12:05:40 +0100 Subject: [PATCH 054/172] net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit e8b1d7698038e76363859fb47ae0a262080646f5 upstream. Avoid a memory leak if there is not a CPU port defined. Fixes: 8d5f7954b7c8 ("net: dsa: felix: break at first CPU port during init and teardown") Addresses-Coverity-ID: 1492897 ("Resource leak") Addresses-Coverity-ID: 1492899 ("Resource leak") Signed-off-by: José Expósito Reviewed-by: Vladimir Oltean Link: https://lore.kernel.org/r/20211209110538.11585-1-jose.exposito89@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/ocelot/felix.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 6873d5a253af..1513dfb523de 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -290,8 +290,11 @@ static int felix_setup_mmio_filtering(struct felix *felix) } } - if (cpu < 0) + if (cpu < 0) { + kfree(tagging_rule); + kfree(redirect_rule); return -EINVAL; + } tagging_rule->key_type = OCELOT_VCAP_KEY_ETYPE; *(__be16 *)tagging_rule->key.etype.etype.value = htons(ETH_P_1588); From d86216dfda7c98375f809e26a30bfdaaba21d46e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 9 Dec 2021 00:49:37 -0800 Subject: [PATCH 055/172] net/sched: fq_pie: prevent dismantle issue commit 61c2402665f1e10c5742033fce18392e369931d7 upstream. For some reason, fq_pie_destroy() did not copy working code from pie_destroy() and other qdiscs, thus causing elusive bug. Before calling del_timer_sync(&q->adapt_timer), we need to ensure timer will not rearm itself. rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (4416 ticks this GP) idle=60d/1/0x4000000000000000 softirq=10433/10434 fqs=2579 (t=10501 jiffies g=13085 q=3989) NMI backtrace for cpu 0 CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline] check_cpu_stall kernel/rcu/tree_stall.h:711 [inline] rcu_pending kernel/rcu/tree.c:3878 [inline] rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597 update_process_times+0x16d/0x200 kernel/time/timer.c:1785 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:write_comp_data kernel/kcov.c:221 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x1d/0x80 kernel/kcov.c:273 Code: 54 c8 20 48 89 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 40 70 02 00 48 89 ce 4c 8b 54 24 08 4e f7 ff ff 84 c0 74 51 48 8b 81 88 15 00 00 44 8b 81 84 15 00 RSP: 0018:ffffc90000d27b28 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888064bf1bf0 RCX: ffff888011928000 RDX: ffff888011928000 RSI: ffff888011928000 RDI: 0000000000000003 RBP: ffff888064bf1c28 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff875d8295 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880783dd300 R14: 0000000000000000 R15: 0000000000000000 pie_calculate_probability+0x405/0x7c0 net/sched/sch_pie.c:418 fq_pie_timer+0x170/0x2a0 net/sched/sch_fq_pie.c:383 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Fixes: ec97ecf1ebe4 ("net: sched: add Flow Queue PIE packet scheduler") Signed-off-by: Eric Dumazet Reported-by: syzbot Cc: Mohit P. Tahiliani Cc: Sachin D. Patil Cc: V. Saicharan Cc: Mohit Bhasi Cc: Leslie Monis Cc: Gautam Ramakrishnan Link: https://lore.kernel.org/r/20211209084937.3500020-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/sched/sch_fq_pie.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/sched/sch_fq_pie.c b/net/sched/sch_fq_pie.c index 830f3559f727..d6aba6edd16e 100644 --- a/net/sched/sch_fq_pie.c +++ b/net/sched/sch_fq_pie.c @@ -531,6 +531,7 @@ static void fq_pie_destroy(struct Qdisc *sch) struct fq_pie_sched_data *q = qdisc_priv(sch); tcf_block_put(q->block); + q->p_params.tupdate = 0; del_timer_sync(&q->adapt_timer); kvfree(q->flows); } From d6c37e679631761f8f2db0abb214d9e4aec0b036 Mon Sep 17 00:00:00 2001 From: Louis Amas Date: Tue, 7 Dec 2021 15:34:22 +0100 Subject: [PATCH 056/172] net: mvpp2: fix XDP rx queues registering commit a50e659b2a1be14784e80f8492aab177e67c53a2 upstream. The registration of XDP queue information is incorrect because the RX queue id we use is invalid. When port->id == 0 it appears to works as expected yet it's no longer the case when port->id != 0. The problem arised while using a recent kernel version on the MACCHIATOBin. This board has several ports: * eth0 and eth1 are 10Gbps interfaces ; both ports has port->id == 0; * eth2 is a 1Gbps interface with port->id != 0. Code from xdp-tutorial (more specifically advanced03-AF_XDP) was used to test packet capture and injection on all these interfaces. The XDP kernel was simplified to: SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx) { int index = ctx->rx_queue_index; /* A set entry here means that the correspnding queue_id * has an active AF_XDP socket bound to it. */ if (bpf_map_lookup_elem(&xsks_map, &index)) return bpf_redirect_map(&xsks_map, index, 0); return XDP_PASS; } Starting the program using: ./af_xdp_user -d DEV Gives the following result: * eth0 : ok * eth1 : ok * eth2 : no capture, no injection Investigating the issue shows that XDP rx queues for eth2 are wrong: XDP expects their id to be in the range [0..3] but we found them to be in the range [32..35]. Trying to force rx queue ids using: ./af_xdp_user -d eth2 -Q 32 fails as expected (we shall not have more than 4 queues). When we register the XDP rx queue information (using xdp_rxq_info_reg() in function mvpp2_rxq_init()) we tell it to use rxq->id as the queue id. This value is computed as: rxq->id = port->id * max_rxq_count + queue_id where max_rxq_count depends on the device version. In the MACCHIATOBin case, this value is 32, meaning that rx queues on eth2 are numbered from 32 to 35 - there are four of them. Clearly, this is not the per-port queue id that XDP is expecting: it wants a value in the range [0..3]. It shall directly use queue_id which is stored in rxq->logic_rxq -- so let's use that value instead. rxq->id is left untouched ; its value is indeed valid but it should not be used in this context. This is consistent with the remaining part of the code in mvpp2_rxq_init(). With this change, packet capture is working as expected on all the MACCHIATOBin ports. Fixes: b27db2274ba8 ("mvpp2: use page_pool allocator") Signed-off-by: Louis Amas Signed-off-by: Emmanuel Deloget Reviewed-by: Marcin Wojtas Acked-by: John Fastabend Acked-by: Jesper Dangaard Brouer Link: https://lore.kernel.org/r/20211207143423.916334-1-louis.amas@eho.link Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index bbd054fcda8c..2baa909290b3 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -2960,11 +2960,11 @@ static int mvpp2_rxq_init(struct mvpp2_port *port, mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size); if (priv->percpu_pools) { - err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->id, 0); + err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->logic_rxq, 0); if (err < 0) goto err_free_dma; - err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->id, 0); + err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->logic_rxq, 0); if (err < 0) goto err_unregister_rxq_short; From eea80da3472bc3e4bf11f1baf18962df4207f732 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Mon, 25 Oct 2021 13:13:10 -0700 Subject: [PATCH 057/172] KVM: x86: Don't WARN if userspace mucks with RCX during string I/O exit commit d07898eaf39909806128caccb6ebd922ee3edd69 upstream. Replace a WARN with a comment to call out that userspace can modify RCX during an exit to userspace to handle string I/O. KVM doesn't actually support changing the rep count during an exit, i.e. the scenario can be ignored, but the WARN needs to go as it's trivial to trigger from userspace. Cc: stable@vger.kernel.org Fixes: 3b27de271839 ("KVM: x86: split the two parts of emulator_pio_in") Signed-off-by: Sean Christopherson Message-Id: <20211025201311.1881846-2-seanjc@google.com> Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/x86.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b7aa845f7bee..eff065ce6f8e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7021,7 +7021,13 @@ static int emulator_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port, void *val, unsigned int count) { if (vcpu->arch.pio.count) { - /* Complete previous iteration. */ + /* + * Complete a previous iteration that required userspace I/O. + * Note, @count isn't guaranteed to match pio.count as userspace + * can modify ECX before rerunning the vCPU. Ignore any such + * shenanigans as KVM doesn't support modifying the rep count, + * and the emulator ensures @count doesn't overflow the buffer. + */ } else { int r = __emulator_pio_in(vcpu, size, port, count); if (!r) @@ -7030,7 +7036,6 @@ static int emulator_pio_in(struct kvm_vcpu *vcpu, int size, /* Results already available, fall through. */ } - WARN_ON(count != vcpu->arch.pio.count); complete_emulator_pio_in(vcpu, val); return 1; } From 21cc93f6df63e3ed3458dd20c4266abb436921f4 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Tue, 7 Dec 2021 22:09:19 +0000 Subject: [PATCH 058/172] KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req commit 3244867af8c065e51969f1bffe732d3ebfd9a7d2 upstream. Do not bail early if there are no bits set in the sparse banks for a non-sparse, a.k.a. "all CPUs", IPI request. Per the Hyper-V spec, it is legal to have a variable length of '0', e.g. VP_SET's BankContents in this case, if the request can be serviced without the extra info. It is possible that for a given invocation of a hypercall that does accept variable sized input headers that all the header input fits entirely within the fixed size header. In such cases the variable sized input header is zero-sized and the corresponding bits in the hypercall input should be set to zero. Bailing early results in KVM failing to send IPIs to all CPUs as expected by the guest. Fixes: 214ff83d4473 ("KVM: x86: hyperv: implement PV IPI send hypercalls") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson Reviewed-by: Vitaly Kuznetsov Message-Id: <20211207220926.718794-2-seanjc@google.com> Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/hyperv.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index b9a13dc211d5..2092834efba1 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1922,11 +1922,13 @@ static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool all_cpus = send_ipi_ex.vp_set.format == HV_GENERIC_SET_ALL; + if (all_cpus) + goto check_and_send_ipi; + if (!sparse_banks_len) goto ret_success; - if (!all_cpus && - kvm_read_guest(kvm, + if (kvm_read_guest(kvm, hc->ingpa + offsetof(struct hv_send_ipi_ex, vp_set.bank_contents), sparse_banks, @@ -1934,6 +1936,7 @@ static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool return HV_STATUS_INVALID_HYPERCALL_INPUT; } +check_and_send_ipi: if ((vector < HV_IPI_LOW_VECTOR) || (vector > HV_IPI_HIGH_VECTOR)) return HV_STATUS_INVALID_HYPERCALL_INPUT; From 64d320dcf1f1b446bf83ecf50db5c2ee78f9d777 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Thu, 9 Dec 2021 11:29:37 +0100 Subject: [PATCH 059/172] KVM: x86: Wait for IPIs to be delivered when handling Hyper-V TLB flush hypercall commit 1ebfaa11ebb5b603a3c3f54b2e84fcf1030f5a14 upstream. Prior to commit 0baedd792713 ("KVM: x86: make Hyper-V PV TLB flush use tlb_flush_guest()"), kvm_hv_flush_tlb() was using 'KVM_REQ_TLB_FLUSH | KVM_REQUEST_NO_WAKEUP' when making a request to flush TLBs on other vCPUs and KVM_REQ_TLB_FLUSH is/was defined as: (0 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) so KVM_REQUEST_WAIT was lost. Hyper-V TLFS, however, requires that "This call guarantees that by the time control returns back to the caller, the observable effects of all flushes on the specified virtual processors have occurred." and without KVM_REQUEST_WAIT there's a small chance that the vCPU making the TLB flush will resume running before all IPIs get delivered to other vCPUs and a stale mapping can get read there. Fix the issue by adding KVM_REQUEST_WAIT flag to KVM_REQ_TLB_FLUSH_GUEST: kvm_hv_flush_tlb() is the sole caller which uses it for kvm_make_all_cpus_request()/kvm_make_vcpus_request_mask() where KVM_REQUEST_WAIT makes a difference. Cc: stable@kernel.org Fixes: 0baedd792713 ("KVM: x86: make Hyper-V PV TLB flush use tlb_flush_guest()") Signed-off-by: Vitaly Kuznetsov Message-Id: <20211209102937.584397-1-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index fa24fd4d138d..a11785ebf628 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -98,7 +98,7 @@ KVM_ARCH_REQ_FLAGS(25, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_TLB_FLUSH_CURRENT KVM_ARCH_REQ(26) #define KVM_REQ_TLB_FLUSH_GUEST \ - KVM_ARCH_REQ_FLAGS(27, KVM_REQUEST_NO_WAKEUP) + KVM_ARCH_REQ_FLAGS(27, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_APF_READY KVM_ARCH_REQ(28) #define KVM_REQ_MSR_FILTER_CHANGED KVM_ARCH_REQ(29) #define KVM_REQ_UPDATE_CPU_DIRTY_LOGGING \ From 5a960e533c2a0499f5f7ae6b6962fff847dacf74 Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Fri, 10 Dec 2021 14:46:22 -0800 Subject: [PATCH 060/172] timers: implement usleep_idle_range() commit e4779015fd5d2fb8390c258268addff24d6077c7 upstream. Patch series "mm/damon: Fix fake /proc/loadavg reports", v3. This patchset fixes DAMON's fake load report issue. The first patch makes yet another variant of usleep_range() for this fix, and the second patch fixes the issue of DAMON by making it using the newly introduced function. This patch (of 2): Some kernel threads such as DAMON could need to repeatedly sleep in micro seconds level. Because usleep_range() sleeps in uninterruptible state, however, such threads would make /proc/loadavg reports fake load. To help such cases, this commit implements a variant of usleep_range() called usleep_idle_range(). It is same to usleep_range() but sets the state of the current task as TASK_IDLE while sleeping. Link: https://lkml.kernel.org/r/20211126145015.15862-1-sj@kernel.org Link: https://lkml.kernel.org/r/20211126145015.15862-2-sj@kernel.org Signed-off-by: SeongJae Park Suggested-by: Andrew Morton Reviewed-by: Thomas Gleixner Tested-by: Oleksandr Natalenko Cc: John Stultz Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- include/linux/delay.h | 14 +++++++++++++- kernel/time/timer.c | 16 +++++++++------- 2 files changed, 22 insertions(+), 8 deletions(-) diff --git a/include/linux/delay.h b/include/linux/delay.h index 1d0e2ce6b6d9..e8607992c68a 100644 --- a/include/linux/delay.h +++ b/include/linux/delay.h @@ -20,6 +20,7 @@ */ #include +#include extern unsigned long loops_per_jiffy; @@ -58,7 +59,18 @@ void calibrate_delay(void); void __attribute__((weak)) calibration_delay_done(void); void msleep(unsigned int msecs); unsigned long msleep_interruptible(unsigned int msecs); -void usleep_range(unsigned long min, unsigned long max); +void usleep_range_state(unsigned long min, unsigned long max, + unsigned int state); + +static inline void usleep_range(unsigned long min, unsigned long max) +{ + usleep_range_state(min, max, TASK_UNINTERRUPTIBLE); +} + +static inline void usleep_idle_range(unsigned long min, unsigned long max) +{ + usleep_range_state(min, max, TASK_IDLE); +} static inline void ssleep(unsigned int seconds) { diff --git a/kernel/time/timer.c b/kernel/time/timer.c index e3d2c23c413d..85f1021ad459 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -2054,26 +2054,28 @@ unsigned long msleep_interruptible(unsigned int msecs) EXPORT_SYMBOL(msleep_interruptible); /** - * usleep_range - Sleep for an approximate time - * @min: Minimum time in usecs to sleep - * @max: Maximum time in usecs to sleep + * usleep_range_state - Sleep for an approximate time in a given state + * @min: Minimum time in usecs to sleep + * @max: Maximum time in usecs to sleep + * @state: State of the current task that will be while sleeping * * In non-atomic context where the exact wakeup time is flexible, use - * usleep_range() instead of udelay(). The sleep improves responsiveness + * usleep_range_state() instead of udelay(). The sleep improves responsiveness * by avoiding the CPU-hogging busy-wait of udelay(), and the range reduces * power usage by allowing hrtimers to take advantage of an already- * scheduled interrupt instead of scheduling a new one just for this sleep. */ -void __sched usleep_range(unsigned long min, unsigned long max) +void __sched usleep_range_state(unsigned long min, unsigned long max, + unsigned int state) { ktime_t exp = ktime_add_us(ktime_get(), min); u64 delta = (u64)(max - min) * NSEC_PER_USEC; for (;;) { - __set_current_state(TASK_UNINTERRUPTIBLE); + __set_current_state(state); /* Do not return before the requested sleep time has elapsed */ if (!schedule_hrtimeout_range(&exp, delta, HRTIMER_MODE_ABS)) break; } } -EXPORT_SYMBOL(usleep_range); +EXPORT_SYMBOL(usleep_range_state); From 7d7e02563bcd5cebc18c92cf0882bcc7bb9c8809 Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Fri, 10 Dec 2021 14:46:25 -0800 Subject: [PATCH 061/172] mm/damon/core: fix fake load reports due to uninterruptible sleeps commit 70e9274805fccfd175d0431a947bfd11ee7df40e upstream. Because DAMON sleeps in uninterruptible mode, /proc/loadavg reports fake load while DAMON is turned on, though it is doing nothing. This can confuse users[1]. To avoid the case, this commit makes DAMON sleeps in idle mode. [1] https://lore.kernel.org/all/11868371.O9o76ZdvQC@natalenko.name/ Link: https://lkml.kernel.org/r/20211126145015.15862-3-sj@kernel.org Fixes: 2224d8485492 ("mm: introduce Data Access MONitor (DAMON)") Reported-by: Oleksandr Natalenko Signed-off-by: SeongJae Park Tested-by: Oleksandr Natalenko Cc: John Stultz Cc: Thomas Gleixner Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/damon/core.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/mm/damon/core.c b/mm/damon/core.c index 30e9211f494a..7a4912d6e65f 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -357,6 +357,15 @@ int damon_start(struct damon_ctx **ctxs, int nr_ctxs) return err; } +static void kdamond_usleep(unsigned long usecs) +{ + /* See Documentation/timers/timers-howto.rst for the thresholds */ + if (usecs > 20 * 1000) + schedule_timeout_idle(usecs_to_jiffies(usecs)); + else + usleep_idle_range(usecs, usecs + 1); +} + /* * __damon_stop() - Stops monitoring of given context. * @ctx: monitoring context @@ -370,8 +379,7 @@ static int __damon_stop(struct damon_ctx *ctx) ctx->kdamond_stop = true; mutex_unlock(&ctx->kdamond_lock); while (damon_kdamond_running(ctx)) - usleep_range(ctx->sample_interval, - ctx->sample_interval * 2); + kdamond_usleep(ctx->sample_interval); return 0; } mutex_unlock(&ctx->kdamond_lock); @@ -670,7 +678,7 @@ static int kdamond_fn(void *data) ctx->callback.after_sampling(ctx)) set_kdamond_stop(ctx); - usleep_range(ctx->sample_interval, ctx->sample_interval + 1); + kdamond_usleep(ctx->sample_interval); if (ctx->primitive.check_accesses) max_nr_accesses = ctx->primitive.check_accesses(ctx); From dd902bcec34ffeb8eeebf0b2c897f04b035def3b Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Fri, 10 Dec 2021 14:47:02 -0800 Subject: [PATCH 062/172] mm/slub: fix endianness bug for alloc/free_traces attributes commit 005a79e5c254c3f60ec269a459cc41b55028c798 upstream. On big-endian s390, the alloc/free_traces attributes produce endless output, because of always 0 idx in slab_debugfs_show(). idx is de-referenced from *v, which points to a loff_t value, with unsigned int idx = *(unsigned int *)v; This will only give the upper 32 bits on big-endian, which remain 0. Instead of only fixing this de-reference, during discussion it seemed more appropriate to change the seq_ops so that they use an explicit iterator in private loc_track struct. This patch adds idx to loc_track, which will also fix the endianness bug. Link: https://lore.kernel.org/r/20211117193932.4049412-1-gerald.schaefer@linux.ibm.com Link: https://lkml.kernel.org/r/20211126171848.17534-1-gerald.schaefer@linux.ibm.com Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs") Signed-off-by: Gerald Schaefer Reported-by: Steffen Maier Acked-by: Vlastimil Babka Cc: Faiyaz Mohammed Cc: Greg Kroah-Hartman Cc: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/slub.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index d8f77346376d..ca6ba6bdf27b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5072,6 +5072,7 @@ struct loc_track { unsigned long max; unsigned long count; struct location *loc; + loff_t idx; }; static struct dentry *slab_debugfs_root; @@ -6035,11 +6036,11 @@ __initcall(slab_sysfs_init); #if defined(CONFIG_SLUB_DEBUG) && defined(CONFIG_DEBUG_FS) static int slab_debugfs_show(struct seq_file *seq, void *v) { - - struct location *l; - unsigned int idx = *(unsigned int *)v; struct loc_track *t = seq->private; + struct location *l; + unsigned long idx; + idx = (unsigned long) t->idx; if (idx < t->count) { l = &t->loc[idx]; @@ -6088,16 +6089,18 @@ static void *slab_debugfs_next(struct seq_file *seq, void *v, loff_t *ppos) { struct loc_track *t = seq->private; - v = ppos; - ++*ppos; + t->idx = ++(*ppos); if (*ppos <= t->count) - return v; + return ppos; return NULL; } static void *slab_debugfs_start(struct seq_file *seq, loff_t *ppos) { + struct loc_track *t = seq->private; + + t->idx = *ppos; return ppos; } From f987b61daa9860a68e346d620952947327388779 Mon Sep 17 00:00:00 2001 From: Manjong Lee Date: Fri, 10 Dec 2021 14:47:11 -0800 Subject: [PATCH 063/172] mm: bdi: initialize bdi_min_ratio when bdi is unregistered commit 3c376dfafbf7a8ea0dea212d095ddd83e93280bb upstream. Initialize min_ratio if it is set during bdi unregistration. This can prevent problems that may occur a when bdi is removed without resetting min_ratio. For example. 1) insert external sdcard 2) set external sdcard's min_ratio 70 3) remove external sdcard without setting min_ratio 0 4) insert external sdcard 5) set external sdcard's min_ratio 70 << error occur(can't set) Because when an sdcard is removed, the present bdi_min_ratio value will remain. Currently, the only way to reset bdi_min_ratio is to reboot. [akpm@linux-foundation.org: tweak comment and coding style] Link: https://lkml.kernel.org/r/20211021161942.5983-1-mj0123.lee@samsung.com Signed-off-by: Manjong Lee Acked-by: Peter Zijlstra (Intel) Cc: Changheun Lee Cc: Jens Axboe Cc: Christoph Hellwig Cc: Matthew Wilcox Cc: Cc: Cc: Cc: Cc: Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/backing-dev.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 4a9d4e27d0d9..02ff66f86358 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -947,6 +947,13 @@ void bdi_unregister(struct backing_dev_info *bdi) wb_shutdown(&bdi->wb); cgwb_bdi_unregister(bdi); + /* + * If this BDI's min ratio has been set, use bdi_set_min_ratio() to + * update the global bdi_min_ratio. + */ + if (bdi->min_ratio) + bdi_set_min_ratio(bdi, 0); + if (bdi->dev) { bdi_debug_unregister(bdi); device_unregister(bdi->dev); From da171216ac2d5958b19c804d1a64a9bd31b061cb Mon Sep 17 00:00:00 2001 From: Alan Young Date: Thu, 2 Dec 2021 15:06:07 +0000 Subject: [PATCH 064/172] ALSA: ctl: Fix copy of updated id with element read/write commit b6409dd6bdc03aa178bbff0d80db2a30d29b63ac upstream. When control_compat.c:copy_ctl_value_to_user() is used, by ctl_elem_read_user() & ctl_elem_write_user(), it must also copy back the snd_ctl_elem_id value that may have been updated (filled in) by the call to snd_ctl_elem_read/snd_ctl_elem_write(). This matches the functionality provided by snd_ctl_elem_read_user() and snd_ctl_elem_write_user(), via snd_ctl_build_ioff(). Without this, and without making additional calls to snd_ctl_info() which are unnecessary when using the non-compat calls, a userspace application will not know the numid value for the element and consequently will not be able to use the poll/read interface on the control file to determine which elements have updates. Signed-off-by: Alan Young Cc: Link: https://lore.kernel.org/r/20211202150607.543389-1-consult.awy@gmail.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/core/control_compat.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c index 470dabc60aa0..edff063e088d 100644 --- a/sound/core/control_compat.c +++ b/sound/core/control_compat.c @@ -264,6 +264,7 @@ static int copy_ctl_value_to_user(void __user *userdata, struct snd_ctl_elem_value *data, int type, int count) { + struct snd_ctl_elem_value32 __user *data32 = userdata; int i, size; if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN || @@ -280,6 +281,8 @@ static int copy_ctl_value_to_user(void __user *userdata, if (copy_to_user(valuep, data->value.bytes.data, size)) return -EFAULT; } + if (copy_to_user(&data32->id, &data->id, sizeof(data32->id))) + return -EFAULT; return 0; } From 220aaee85f0ea1e8f10cf5a6f500df6fd4b7bcee Mon Sep 17 00:00:00 2001 From: Kailang Yang Date: Tue, 23 Nov 2021 16:32:44 +0800 Subject: [PATCH 065/172] ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform commit d7f32791a9fcf0dae8b073cdea9b79e29098c5f4 upstream. Lenovo ALC897 platform had headset Mic. This patch enable supported headset Mic. Signed-off-by: Kailang Yang Cc: Link: https://lore.kernel.org/r/baab2c2536cb4cc18677a862c6f6d840@realtek.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/patch_realtek.c | 40 +++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 9ce7457533c9..684a5dbf85d5 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -10231,6 +10231,27 @@ static void alc671_fixup_hp_headset_mic2(struct hda_codec *codec, } } +static void alc897_hp_automute_hook(struct hda_codec *codec, + struct hda_jack_callback *jack) +{ + struct alc_spec *spec = codec->spec; + int vref; + + snd_hda_gen_hp_automute(codec, jack); + vref = spec->gen.hp_jack_present ? (PIN_HP | AC_PINCTL_VREF_100) : PIN_HP; + snd_hda_codec_write(codec, 0x1b, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, + vref); +} + +static void alc897_fixup_lenovo_headset_mic(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + struct alc_spec *spec = codec->spec; + if (action == HDA_FIXUP_ACT_PRE_PROBE) { + spec->gen.hp_automute_hook = alc897_hp_automute_hook; + } +} + static const struct coef_fw alc668_coefs[] = { WRITE_COEF(0x01, 0xbebe), WRITE_COEF(0x02, 0xaaaa), WRITE_COEF(0x03, 0x0), WRITE_COEF(0x04, 0x0180), WRITE_COEF(0x06, 0x0), WRITE_COEF(0x07, 0x0f80), @@ -10311,6 +10332,8 @@ enum { ALC668_FIXUP_ASUS_NO_HEADSET_MIC, ALC668_FIXUP_HEADSET_MIC, ALC668_FIXUP_MIC_DET_COEF, + ALC897_FIXUP_LENOVO_HEADSET_MIC, + ALC897_FIXUP_HEADSET_MIC_PIN, }; static const struct hda_fixup alc662_fixups[] = { @@ -10717,6 +10740,19 @@ static const struct hda_fixup alc662_fixups[] = { {} }, }, + [ALC897_FIXUP_LENOVO_HEADSET_MIC] = { + .type = HDA_FIXUP_FUNC, + .v.func = alc897_fixup_lenovo_headset_mic, + }, + [ALC897_FIXUP_HEADSET_MIC_PIN] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { + { 0x1a, 0x03a11050 }, + { } + }, + .chained = true, + .chain_id = ALC897_FIXUP_LENOVO_HEADSET_MIC + }, }; static const struct snd_pci_quirk alc662_fixup_tbl[] = { @@ -10761,6 +10797,10 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = { SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x14cd, 0x5003, "USI", ALC662_FIXUP_USI_HEADSET_MODE), SND_PCI_QUIRK(0x17aa, 0x1036, "Lenovo P520", ALC662_FIXUP_LENOVO_MULTI_CODECS), + SND_PCI_QUIRK(0x17aa, 0x32ca, "Lenovo ThinkCentre M80", ALC897_FIXUP_HEADSET_MIC_PIN), + SND_PCI_QUIRK(0x17aa, 0x32cb, "Lenovo ThinkCentre M70", ALC897_FIXUP_HEADSET_MIC_PIN), + SND_PCI_QUIRK(0x17aa, 0x32cf, "Lenovo ThinkCentre M950", ALC897_FIXUP_HEADSET_MIC_PIN), + SND_PCI_QUIRK(0x17aa, 0x32f7, "Lenovo ThinkCentre M90", ALC897_FIXUP_HEADSET_MIC_PIN), SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Ideapad Y550", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x1849, 0x5892, "ASRock B150M", ALC892_FIXUP_ASROCK_MOBO), From c94a0d734c7bf4ffa5e72f3e66a12b5f36d3f4e2 Mon Sep 17 00:00:00 2001 From: Werner Sembach Date: Thu, 2 Dec 2021 17:50:10 +0100 Subject: [PATCH 066/172] ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1 commit 619764cc2ec9ce1283a8bbcd89a1376a7c68293b upstream. This fixes the SND_PCI_QUIRK(...) of the TongFang PHxTxX1 barebone. This fixes the issue of sound not working after s3 suspend. When waking up from s3 suspend the Coef 0x10 is set to 0x0220 instead of 0x0020. Setting the value manually makes the sound work again. This patch does this automatically. While being on it, I also fixed the comment formatting of the quirk and shortened variable and function names. Signed-off-by: Werner Sembach Fixes: dd6dd6e3c791 ("ALSA: hda/realtek: Add quirk for TongFang PHxTxX1") Cc: Link: https://lore.kernel.org/r/20211202165010.876431-1-wse@tuxedocomputers.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/patch_realtek.c | 40 +++++++++++++++++++---------------- 1 file changed, 22 insertions(+), 18 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 684a5dbf85d5..3599f4c85ebf 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6503,22 +6503,26 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec, /* for alc285_fixup_ideapad_s740_coef() */ #include "ideapad_s740_helper.c" -static void alc256_fixup_tongfang_reset_persistent_settings(struct hda_codec *codec, - const struct hda_fixup *fix, - int action) +static const struct coef_fw alc256_fixup_set_coef_defaults_coefs[] = { + WRITE_COEF(0x10, 0x0020), WRITE_COEF(0x24, 0x0000), + WRITE_COEF(0x26, 0x0000), WRITE_COEF(0x29, 0x3000), + WRITE_COEF(0x37, 0xfe05), WRITE_COEF(0x45, 0x5089), + {} +}; + +static void alc256_fixup_set_coef_defaults(struct hda_codec *codec, + const struct hda_fixup *fix, + int action) { /* - * A certain other OS sets these coeffs to different values. On at least one TongFang - * barebone these settings might survive even a cold reboot. So to restore a clean slate the - * values are explicitly reset to default here. Without this, the external microphone is - * always in a plugged-in state, while the internal microphone is always in an unplugged - * state, breaking the ability to use the internal microphone. - */ - alc_write_coef_idx(codec, 0x24, 0x0000); - alc_write_coef_idx(codec, 0x26, 0x0000); - alc_write_coef_idx(codec, 0x29, 0x3000); - alc_write_coef_idx(codec, 0x37, 0xfe05); - alc_write_coef_idx(codec, 0x45, 0x5089); + * A certain other OS sets these coeffs to different values. On at least + * one TongFang barebone these settings might survive even a cold + * reboot. So to restore a clean slate the values are explicitly reset + * to default here. Without this, the external microphone is always in a + * plugged-in state, while the internal microphone is always in an + * unplugged state, breaking the ability to use the internal microphone. + */ + alc_process_coef_fw(codec, alc256_fixup_set_coef_defaults_coefs); } static const struct coef_fw alc233_fixup_no_audio_jack_coefs[] = { @@ -6759,7 +6763,7 @@ enum { ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE, ALC287_FIXUP_YOGA7_14ITL_SPEAKERS, ALC287_FIXUP_13S_GEN2_SPEAKERS, - ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS, + ALC256_FIXUP_SET_COEF_DEFAULTS, ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE, ALC233_FIXUP_NO_AUDIO_JACK, }; @@ -8465,9 +8469,9 @@ static const struct hda_fixup alc269_fixups[] = { .chained = true, .chain_id = ALC269_FIXUP_HEADSET_MODE, }, - [ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS] = { + [ALC256_FIXUP_SET_COEF_DEFAULTS] = { .type = HDA_FIXUP_FUNC, - .v.func = alc256_fixup_tongfang_reset_persistent_settings, + .v.func = alc256_fixup_set_coef_defaults, }, [ALC245_FIXUP_HP_GPIO_LED] = { .type = HDA_FIXUP_FUNC, @@ -8929,7 +8933,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x1b7d, 0xa831, "Ordissimo EVE2 ", ALC269VB_FIXUP_ORDISSIMO_EVE2), /* Also known as Malata PC-B1303 */ SND_PCI_QUIRK(0x1c06, 0x2013, "Lemote A1802", ALC269_FIXUP_LEMOTE_A1802), SND_PCI_QUIRK(0x1c06, 0x2015, "Lemote A190X", ALC269_FIXUP_LEMOTE_A190X), - SND_PCI_QUIRK(0x1d05, 0x1132, "TongFang PHxTxX1", ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS), + SND_PCI_QUIRK(0x1d05, 0x1132, "TongFang PHxTxX1", ALC256_FIXUP_SET_COEF_DEFAULTS), SND_PCI_QUIRK(0x1d72, 0x1602, "RedmiBook", ALC255_FIXUP_XIAOMI_HEADSET_MIC), SND_PCI_QUIRK(0x1d72, 0x1701, "XiaomiNotebook Pro", ALC298_FIXUP_DELL1_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1d72, 0x1901, "RedmiBook 14", ALC256_FIXUP_ASUS_HEADSET_MIC), From 00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 1 Dec 2021 08:36:04 +0100 Subject: [PATCH 067/172] ALSA: pcm: oss: Fix negative period/buffer sizes commit 9d2479c960875ca1239bcb899f386970c13d9cfe upstream. The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately. Reported-by: syzbot+bb348e9f9a954d42746f@syzkaller.appspotmail.com Reported-by: Bixuan Cui Cc: Link: https://lore.kernel.org/r/1638270978-42412-1-git-send-email-cuibixuan@linux.alibaba.com Link: https://lore.kernel.org/r/20211201073606.11660-2-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/core/oss/pcm_oss.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 82a818734a5f..bec7590bc84b 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -147,7 +147,7 @@ snd_pcm_hw_param_value_min(const struct snd_pcm_hw_params *params, * * Return the maximum value for field PAR. */ -static unsigned int +static int snd_pcm_hw_param_value_max(const struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var, int *dir) { @@ -682,18 +682,24 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *oss_params, struct snd_pcm_hw_params *slave_params) { - size_t s; - size_t oss_buffer_size, oss_period_size, oss_periods; - size_t min_period_size, max_period_size; + ssize_t s; + ssize_t oss_buffer_size; + ssize_t oss_period_size, oss_periods; + ssize_t min_period_size, max_period_size; struct snd_pcm_runtime *runtime = substream->runtime; size_t oss_frame_size; oss_frame_size = snd_pcm_format_physical_width(params_format(oss_params)) * params_channels(oss_params) / 8; + oss_buffer_size = snd_pcm_hw_param_value_max(slave_params, + SNDRV_PCM_HW_PARAM_BUFFER_SIZE, + NULL); + if (oss_buffer_size <= 0) + return -EINVAL; oss_buffer_size = snd_pcm_plug_client_size(substream, - snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL)) * oss_frame_size; - if (!oss_buffer_size) + oss_buffer_size * oss_frame_size); + if (oss_buffer_size <= 0) return -EINVAL; oss_buffer_size = rounddown_pow_of_two(oss_buffer_size); if (atomic_read(&substream->mmap_count)) { @@ -730,7 +736,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, min_period_size = snd_pcm_plug_client_size(substream, snd_pcm_hw_param_value_min(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL)); - if (min_period_size) { + if (min_period_size > 0) { min_period_size *= oss_frame_size; min_period_size = roundup_pow_of_two(min_period_size); if (oss_period_size < min_period_size) @@ -739,7 +745,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, max_period_size = snd_pcm_plug_client_size(substream, snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL)); - if (max_period_size) { + if (max_period_size > 0) { max_period_size *= oss_frame_size; max_period_size = rounddown_pow_of_two(max_period_size); if (oss_period_size > max_period_size) @@ -752,7 +758,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, oss_periods = substream->oss.setup.periods; s = snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIODS, NULL); - if (runtime->oss.maxfrags && s > runtime->oss.maxfrags) + if (s > 0 && runtime->oss.maxfrags && s > runtime->oss.maxfrags) s = runtime->oss.maxfrags; if (oss_periods > s) oss_periods = s; From 35a3e511032146941085f87dd9fb5b82ea5c00a2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 1 Dec 2021 08:36:05 +0100 Subject: [PATCH 068/172] ALSA: pcm: oss: Limit the period size to 16MB commit 8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2 upstream. Set the practical limit to the period size (the fragment shift in OSS) instead of a full 31bit; a too large value could lead to the exhaust of memory as we allocate temporary buffers of the period size, too. As of this patch, we set to 16MB limit, which should cover all use cases. Reported-by: syzbot+bb348e9f9a954d42746f@syzkaller.appspotmail.com Reported-by: Bixuan Cui Cc: Link: https://lore.kernel.org/r/1638270978-42412-1-git-send-email-cuibixuan@linux.alibaba.com Link: https://lore.kernel.org/r/20211201073606.11660-3-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/core/oss/pcm_oss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index bec7590bc84b..89c4910daf02 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -1962,7 +1962,7 @@ static int snd_pcm_oss_set_fragment1(struct snd_pcm_substream *substream, unsign if (runtime->oss.subdivision || runtime->oss.fragshift) return -EINVAL; fragshift = val & 0xffff; - if (fragshift >= 31) + if (fragshift >= 25) /* should be large enough */ return -EINVAL; runtime->oss.fragshift = fragshift; runtime->oss.maxfrags = (val >> 16) & 0xffff; From 1fd7029809947230e15302e9c143d5e14a9f133a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 1 Dec 2021 08:36:06 +0100 Subject: [PATCH 069/172] ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() commit 6665bb30a6b1a4a853d52557c05482ee50e71391 upstream. A couple of calls in snd_pcm_oss_change_params_locked() ignore the possible errors. Catch those errors and abort the operation for avoiding further problems. Cc: Link: https://lore.kernel.org/r/20211201073606.11660-4-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/core/oss/pcm_oss.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index 89c4910daf02..20a0a4771b9a 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -884,8 +884,15 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream) err = -EINVAL; goto failure; } - choose_rate(substream, sparams, runtime->oss.rate); - snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_CHANNELS, runtime->oss.channels, NULL); + + err = choose_rate(substream, sparams, runtime->oss.rate); + if (err < 0) + goto failure; + err = snd_pcm_hw_param_near(substream, sparams, + SNDRV_PCM_HW_PARAM_CHANNELS, + runtime->oss.channels, NULL); + if (err < 0) + goto failure; format = snd_pcm_oss_format_from(runtime->oss.format); From d14bad8c11cc9e78d36bc543930a96920751d99e Mon Sep 17 00:00:00 2001 From: Vincent Whitchurch Date: Tue, 7 Dec 2021 12:54:19 +0100 Subject: [PATCH 070/172] cifs: Fix crash on unload of cifs_arc4.ko commit 51a08bdeca27988a17c87b87d8e64ffecbd2a172 upstream. The exit function is wrongly placed in the __init section and this leads to a crash when the module is unloaded. Just remove both the init and exit functions since this module does not need them. Fixes: 71c02863246167b3d ("cifs: fork arc4 and create a separate module...") Signed-off-by: Vincent Whitchurch Acked-by: Ronnie Sahlberg Acked-by: Paulo Alcantara (SUSE) Cc: stable@vger.kernel.org # 5.15 Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/smbfs_common/cifs_arc4.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/fs/smbfs_common/cifs_arc4.c b/fs/smbfs_common/cifs_arc4.c index 85ba15a60b13..043e4cb839fa 100644 --- a/fs/smbfs_common/cifs_arc4.c +++ b/fs/smbfs_common/cifs_arc4.c @@ -72,16 +72,3 @@ void cifs_arc4_crypt(struct arc4_ctx *ctx, u8 *out, const u8 *in, unsigned int l ctx->y = y; } EXPORT_SYMBOL_GPL(cifs_arc4_crypt); - -static int __init -init_smbfs_common(void) -{ - return 0; -} -static void __init -exit_smbfs_common(void) -{ -} - -module_init(init_smbfs_common) -module_exit(exit_smbfs_common) From 48fc373d9d5419195e0aa1f2f2589246836b6088 Mon Sep 17 00:00:00 2001 From: Roman Bolshakov Date: Fri, 12 Nov 2021 17:54:46 +0300 Subject: [PATCH 071/172] scsi: qla2xxx: Format log strings only if needed commit 69002c8ce914ef0ae22a6ea14b43bb30b9a9a6a8 upstream. Commit 598a90f2002c ("scsi: qla2xxx: add ring buffer for tracing debug logs") introduced unconditional log string formatting to ql_dbg() even if ql_dbg_log event is disabled. It harms performance because some strings are formatted in fastpath and/or interrupt context. Link: https://lore.kernel.org/r/20211112145446.51210-1-r.bolshakov@yadro.com Fixes: 598a90f2002c ("scsi: qla2xxx: add ring buffer for tracing debug logs") Cc: Rajan Shanmugavelu Cc: stable@vger.kernel.org Signed-off-by: Roman Bolshakov Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_dbg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 25549a8a2d72..7cf1f78cbaee 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -2491,6 +2491,9 @@ ql_dbg(uint level, scsi_qla_host_t *vha, uint id, const char *fmt, ...) struct va_format vaf; char pbuf[64]; + if (!ql_mask_match(level) && !trace_ql_dbg_log_enabled()) + return; + va_start(va, fmt); vaf.fmt = fmt; From 0338e448b90527d46e6debe9f95f8a117706a835 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 24 Nov 2021 14:14:23 -0500 Subject: [PATCH 072/172] btrfs: clear extent buffer uptodate when we fail to write it commit c2e39305299f0118298c2201f6d6cc7d3485f29e upstream. I got dmesg errors on generic/281 on our overnight fstests. Looking at the history this happens occasionally, with errors like this WARNING: CPU: 0 PID: 673217 at fs/btrfs/extent_io.c:6848 assert_eb_page_uptodate+0x3f/0x50 CPU: 0 PID: 673217 Comm: kworker/u4:13 Tainted: G W 5.16.0-rc2+ #469 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 Workqueue: btrfs-cache btrfs_work_helper RIP: 0010:assert_eb_page_uptodate+0x3f/0x50 RSP: 0018:ffffae598230bc60 EFLAGS: 00010246 RAX: 0017ffffc0002112 RBX: ffffebaec4100900 RCX: 0000000000001000 RDX: ffffebaec45733c7 RSI: ffffebaec4100900 RDI: ffff9fd98919f340 RBP: 0000000000000d56 R08: ffff9fd98e300000 R09: 0000000000000000 R10: 0001207370a91c50 R11: 0000000000000000 R12: 00000000000007b0 R13: ffff9fd98919f340 R14: 0000000001500000 R15: 0000000001cb0000 FS: 0000000000000000(0000) GS:ffff9fd9fbc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f549fcf8940 CR3: 0000000114908004 CR4: 0000000000370ef0 Call Trace: extent_buffer_test_bit+0x3f/0x70 free_space_test_bit+0xa6/0xc0 load_free_space_tree+0x1d6/0x430 caching_thread+0x454/0x630 ? rcu_read_lock_sched_held+0x12/0x60 ? rcu_read_lock_sched_held+0x12/0x60 ? rcu_read_lock_sched_held+0x12/0x60 ? lock_release+0x1f0/0x2d0 btrfs_work_helper+0xf2/0x3e0 ? lock_release+0x1f0/0x2d0 ? finish_task_switch.isra.0+0xf9/0x3a0 process_one_work+0x270/0x5a0 worker_thread+0x55/0x3c0 ? process_one_work+0x5a0/0x5a0 kthread+0x174/0x1a0 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x1f/0x30 This happens because we're trying to read from a extent buffer page that is !PageUptodate. This happens because we will clear the page uptodate when we have an IO error, but we don't clear the extent buffer uptodate. If we do a read later and find this extent buffer we'll think its valid and not return an error, and then trip over this warning. Fix this by also clearing uptodate on the extent buffer when this happens, so that we get an error when we do a btrfs_search_slot() and find this block later. CC: stable@vger.kernel.org # 5.4+ Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/extent_io.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index a40fb9c74dda..beac825edca1 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4284,6 +4284,12 @@ static void set_btree_ioerr(struct page *page, struct extent_buffer *eb) if (test_and_set_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags)) return; + /* + * A read may stumble upon this buffer later, make sure that it gets an + * error and knows there was an error. + */ + clear_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags); + /* * If we error out, we should add back the dirty_metadata_bytes * to make it consistent. From 477675049ca803aa95ff77468ffbddd966b415b0 Mon Sep 17 00:00:00 2001 From: Naohiro Aota Date: Tue, 30 Nov 2021 12:40:21 +0900 Subject: [PATCH 073/172] btrfs: fix re-dirty process of tree-log nodes commit 84c25448929942edacba905cecc0474e91114e7a upstream. There is a report of a transaction abort of -EAGAIN with the following script. #!/bin/sh for d in sda sdb; do mkfs.btrfs -d single -m single -f /dev/\${d} done mount /dev/sda /mnt/test mount /dev/sdb /mnt/scratch for dir in test scratch; do echo 3 >/proc/sys/vm/drop_caches fio --directory=/mnt/\${dir} --name=fio.\${dir} --rw=read --size=50G --bs=64m \ --numjobs=$(nproc) --time_based --ramp_time=5 --runtime=480 \ --group_reporting |& tee /dev/shm/fio.\${dir} echo 3 >/proc/sys/vm/drop_caches done for d in sda sdb; do umount /dev/\${d} done The stack trace is shown in below. [3310.967991] BTRFS: error (device sda) in btrfs_commit_transaction:2341: errno=-11 unknown (Error while writing out transaction) [3310.968060] BTRFS info (device sda): forced readonly [3310.968064] BTRFS warning (device sda): Skipping commit of aborted transaction. [3310.968065] ------------[ cut here ]------------ [3310.968066] BTRFS: Transaction aborted (error -11) [3310.968074] WARNING: CPU: 14 PID: 1684 at fs/btrfs/transaction.c:1946 btrfs_commit_transaction.cold+0x209/0x2c8 [3310.968131] CPU: 14 PID: 1684 Comm: fio Not tainted 5.14.10-300.fc35.x86_64 #1 [3310.968135] Hardware name: DIAWAY Tartu/Tartu, BIOS V2.01.B10 04/08/2021 [3310.968137] RIP: 0010:btrfs_commit_transaction.cold+0x209/0x2c8 [3310.968144] RSP: 0018:ffffb284ce393e10 EFLAGS: 00010282 [3310.968147] RAX: 0000000000000026 RBX: ffff973f147b0f60 RCX: 0000000000000027 [3310.968149] RDX: ffff974ecf098a08 RSI: 0000000000000001 RDI: ffff974ecf098a00 [3310.968150] RBP: ffff973f147b0f08 R08: 0000000000000000 R09: ffffb284ce393c48 [3310.968151] R10: ffffb284ce393c40 R11: ffffffff84f47468 R12: ffff973f101bfc00 [3310.968153] R13: ffff971f20cf2000 R14: 00000000fffffff5 R15: ffff973f147b0e58 [3310.968154] FS: 00007efe65468740(0000) GS:ffff974ecf080000(0000) knlGS:0000000000000000 [3310.968157] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [3310.968158] CR2: 000055691bcbe260 CR3: 000000105cfa4001 CR4: 0000000000770ee0 [3310.968160] PKRU: 55555554 [3310.968161] Call Trace: [3310.968167] ? dput+0xd4/0x300 [3310.968174] btrfs_sync_file+0x3f1/0x490 [3310.968180] __x64_sys_fsync+0x33/0x60 [3310.968185] do_syscall_64+0x3b/0x90 [3310.968190] entry_SYSCALL_64_after_hwframe+0x44/0xae [3310.968194] RIP: 0033:0x7efe6557329b [3310.968200] RSP: 002b:00007ffe0236ebc0 EFLAGS: 00000293 ORIG_RAX: 000000000000004a [3310.968203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efe6557329b [3310.968204] RDX: 0000000000000000 RSI: 00007efe58d77010 RDI: 0000000000000006 [3310.968205] RBP: 0000000004000000 R08: 0000000000000000 R09: 00007efe58d77010 [3310.968207] R10: 0000000016cacc0c R11: 0000000000000293 R12: 00007efe5ce95980 [3310.968208] R13: 0000000000000000 R14: 00007efe6447c790 R15: 0000000c80000000 [3310.968212] ---[ end trace 1a346f4d3c0d96ba ]--- [3310.968214] BTRFS: error (device sda) in cleanup_transaction:1946: errno=-11 unknown The abort occurs because of a write hole while writing out freeing tree nodes of a tree-log tree. For zoned btrfs, we re-dirty a freed tree node to ensure btrfs can write the region and does not leave a hole on write on a zoned device. The current code fails to re-dirty a node when the tree-log tree's depth is greater or equal to 2. That leads to a transaction abort with -EAGAIN. Fix the issue by properly re-dirtying a node on walking up the tree. Fixes: d3575156f662 ("btrfs: zoned: redirty released extent buffers") CC: stable@vger.kernel.org # 5.12+ Link: https://github.com/kdave/btrfs-progs/issues/415 Reviewed-by: Johannes Thumshirn Signed-off-by: Naohiro Aota Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/tree-log.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index ca33f10b1112..110e63d6727d 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2879,6 +2879,8 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans, path->nodes[*level]->len); if (ret) return ret; + btrfs_redirty_list_add(trans->transaction, + next); } else { if (test_and_clear_bit(EXTENT_BUFFER_DIRTY, &next->bflags)) clear_extent_buffer_dirty(next); @@ -2959,6 +2961,7 @@ static int walk_log_tree(struct btrfs_trans_handle *trans, next->start, next->len); if (ret) goto out; + btrfs_redirty_list_add(trans->transaction, next); } else { if (test_and_clear_bit(EXTENT_BUFFER_DIRTY, &next->bflags)) clear_extent_buffer_dirty(next); @@ -3412,8 +3415,6 @@ static void free_log_tree(struct btrfs_trans_handle *trans, EXTENT_DIRTY | EXTENT_NEW | EXTENT_NEED_WAIT); extent_io_tree_release(&log->log_csum_range); - if (trans && log->node) - btrfs_redirty_list_add(trans->transaction, log->node); btrfs_put_root(log); } From 32d4054cb3e84202a8aee342a7e88c8674deeebd Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Wed, 1 Dec 2021 19:56:17 +0800 Subject: [PATCH 074/172] btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling commit 8289ed9f93bef2762f9184e136d994734b16d997 upstream. I hit the BUG_ON() with generic/475 test case, and to my surprise, all callers of btrfs_del_root_ref() are already aborting transaction, thus there is not need for such BUG_ON(), just go to @out label and caller will properly handle the error. CC: stable@vger.kernel.org # 5.4+ Reviewed-by: Josef Bacik Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/root-tree.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index 702dc5441f03..db37a3799649 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -336,7 +336,8 @@ int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id, key.offset = ref_id; again: ret = btrfs_search_slot(trans, tree_root, &key, path, -1, 1); - BUG_ON(ret < 0); + if (ret < 0) + goto out; if (ret == 0) { leaf = path->nodes[0]; ref = btrfs_item_ptr(leaf, path->slots[0], From ca06c5cb1b6dbfe67655b33c02fc394d65824519 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Fri, 3 Dec 2021 02:55:33 -0800 Subject: [PATCH 075/172] btrfs: free exchange changeset on failures commit da5e817d9d75422eaaa05490d0b9a5e328fc1a51 upstream. Fstests runs on my VMs have show several kmemleak reports like the following. unreferenced object 0xffff88811ae59080 (size 64): comm "xfs_io", pid 12124, jiffies 4294987392 (age 6.368s) hex dump (first 32 bytes): 00 c0 1c 00 00 00 00 00 ff cf 1c 00 00 00 00 00 ................ 90 97 e5 1a 81 88 ff ff 90 97 e5 1a 81 88 ff ff ................ backtrace: [<00000000ac0176d2>] ulist_add_merge+0x60/0x150 [btrfs] [<0000000076e9f312>] set_state_bits+0x86/0xc0 [btrfs] [<0000000014fe73d6>] set_extent_bit+0x270/0x690 [btrfs] [<000000004f675208>] set_record_extent_bits+0x19/0x20 [btrfs] [<00000000b96137b1>] qgroup_reserve_data+0x274/0x310 [btrfs] [<0000000057e9dcbb>] btrfs_check_data_free_space+0x5c/0xa0 [btrfs] [<0000000019c4511d>] btrfs_delalloc_reserve_space+0x1b/0xa0 [btrfs] [<000000006d37e007>] btrfs_dio_iomap_begin+0x415/0x970 [btrfs] [<00000000fb8a74b8>] iomap_iter+0x161/0x1e0 [<0000000071dff6ff>] __iomap_dio_rw+0x1df/0x700 [<000000002567ba53>] iomap_dio_rw+0x5/0x20 [<0000000072e555f8>] btrfs_file_write_iter+0x290/0x530 [btrfs] [<000000005eb3d845>] new_sync_write+0x106/0x180 [<000000003fb505bf>] vfs_write+0x24d/0x2f0 [<000000009bb57d37>] __x64_sys_pwrite64+0x69/0xa0 [<000000003eba3fdf>] do_syscall_64+0x43/0x90 In case brtfs_qgroup_reserve_data() or btrfs_delalloc_reserve_metadata() fail the allocated extent_changeset will not be freed. So in btrfs_check_data_free_space() and btrfs_delalloc_reserve_space() free the allocated extent_changeset to get rid of the allocated memory. The issue currently only happens in the direct IO write path, but only after 65b3c08606e5 ("btrfs: fix ENOSPC failure when attempting direct IO write into NOCOW range"), and also at defrag_one_locked_target(). Every other place is always calling extent_changeset_free() even if its call to btrfs_delalloc_reserve_space() or btrfs_check_data_free_space() has failed. CC: stable@vger.kernel.org # 5.15+ Reviewed-by: Filipe Manana Signed-off-by: Johannes Thumshirn Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/delalloc-space.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/delalloc-space.c b/fs/btrfs/delalloc-space.c index 2059d1504149..40c4d6ba3fb9 100644 --- a/fs/btrfs/delalloc-space.c +++ b/fs/btrfs/delalloc-space.c @@ -143,10 +143,13 @@ int btrfs_check_data_free_space(struct btrfs_inode *inode, /* Use new btrfs_qgroup_reserve_data to reserve precious data space. */ ret = btrfs_qgroup_reserve_data(inode, reserved, start, len); - if (ret < 0) + if (ret < 0) { btrfs_free_reserved_data_space_noquota(fs_info, len); - else + extent_changeset_free(*reserved); + *reserved = NULL; + } else { ret = 0; + } return ret; } @@ -452,8 +455,11 @@ int btrfs_delalloc_reserve_space(struct btrfs_inode *inode, if (ret < 0) return ret; ret = btrfs_delalloc_reserve_metadata(inode, len); - if (ret < 0) + if (ret < 0) { btrfs_free_reserved_data_space(inode, *reserved, start, len); + extent_changeset_free(*reserved); + *reserved = NULL; + } return ret; } From c816dcf69ae4b270b228e5a599b0520c49be9ddd Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:22:57 +0200 Subject: [PATCH 076/172] perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage commit 057ae59f5a1d924511beb1b09f395bdb316cfd03 upstream. Packet generation enable (PGE) refers to whether control flow (COFI) packets are being produced. PGE may be false even when branch-tracing is enabled, due to being out-of-context, or outside a filter address range. Fix some missing PGE usage. Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only") Fixes: 839598176b0554 ("perf intel-pt: Allow decoding with branch tracing disabled") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 5ab631702769..3b52ecdee5a5 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -2677,6 +2677,7 @@ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, in return HOP_IGNORE; case INTEL_PT_TIP_PGD: + decoder->pge = false; if (!decoder->packet.count) { intel_pt_set_nr(decoder); return HOP_IGNORE; @@ -2706,7 +2707,7 @@ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, in intel_pt_set_ip(decoder); if (intel_pt_fup_event(decoder)) return HOP_RETURN; - if (!decoder->branch_enable) + if (!decoder->branch_enable || !decoder->pge) *no_tip = true; if (*no_tip) { decoder->state.type = INTEL_PT_INSTRUCTION; @@ -2896,7 +2897,7 @@ static bool intel_pt_psb_with_fup(struct intel_pt_decoder *decoder, int *err) { struct intel_pt_psb_info data = { .fup = false }; - if (!decoder->branch_enable || !decoder->pge) + if (!decoder->branch_enable) return false; intel_pt_pkt_lookahead(decoder, intel_pt_psb_lookahead_cb, &data); @@ -2998,7 +2999,7 @@ next: break; } intel_pt_set_last_ip(decoder); - if (!decoder->branch_enable) { + if (!decoder->branch_enable || !decoder->pge) { decoder->ip = decoder->last_ip; if (intel_pt_fup_event(decoder)) return 0; From d9c838b927cdc81a0e6c18609991cb0d00fe27fa Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:22:58 +0200 Subject: [PATCH 077/172] perf intel-pt: Fix sync state when a PSB (synchronization) packet is found commit ad106a26aef3a95ac7ca88d033b431661ba346ce upstream. When syncing, it may be that branch packet generation is not enabled at that point, in which case there will not immediately be a control-flow packet, so some packets before a control flow packet turns up, get ignored. However, the decoder is in sync as soon as a PSB is found, so the state should be set accordingly. Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 3b52ecdee5a5..b7e3134d0d03 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -3607,7 +3607,7 @@ static int intel_pt_sync(struct intel_pt_decoder *decoder) } decoder->have_last_ip = true; - decoder->pkt_state = INTEL_PT_STATE_NO_IP; + decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; err = intel_pt_walk_psb(decoder); if (err) From e39dd2e600399b9524b5156571c32d862754ce89 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:22:59 +0200 Subject: [PATCH 078/172] perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type commit 4c761d805bb2d2ead1b9baaba75496152b394c80 upstream. intel_pt_fup_event() assumes it can overwrite the state type if there has been an FUP event, but this is an unnecessary and unexpected constraint on callers. Fix by touching only the state type flags that are affected by an FUP event. Fixes: a472e65fc490a ("perf intel-pt: Add decoder support for ptwrite and power event packets") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-4-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- .../util/intel-pt-decoder/intel-pt-decoder.c | 32 ++++++++----------- 1 file changed, 13 insertions(+), 19 deletions(-) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index b7e3134d0d03..021d0bdf6acf 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -1204,61 +1204,55 @@ out_no_progress: static bool intel_pt_fup_event(struct intel_pt_decoder *decoder) { + enum intel_pt_sample_type type = decoder->state.type; bool ret = false; + decoder->state.type &= ~INTEL_PT_BRANCH; + if (decoder->set_fup_tx_flags) { decoder->set_fup_tx_flags = false; decoder->tx_flags = decoder->fup_tx_flags; - decoder->state.type = INTEL_PT_TRANSACTION; + decoder->state.type |= INTEL_PT_TRANSACTION; if (decoder->fup_tx_flags & INTEL_PT_ABORT_TX) decoder->state.type |= INTEL_PT_BRANCH; - decoder->state.from_ip = decoder->ip; - decoder->state.to_ip = 0; decoder->state.flags = decoder->fup_tx_flags; - return true; + ret = true; } if (decoder->set_fup_ptw) { decoder->set_fup_ptw = false; - decoder->state.type = INTEL_PT_PTW; + decoder->state.type |= INTEL_PT_PTW; decoder->state.flags |= INTEL_PT_FUP_IP; - decoder->state.from_ip = decoder->ip; - decoder->state.to_ip = 0; decoder->state.ptw_payload = decoder->fup_ptw_payload; - return true; + ret = true; } if (decoder->set_fup_mwait) { decoder->set_fup_mwait = false; - decoder->state.type = INTEL_PT_MWAIT_OP; - decoder->state.from_ip = decoder->ip; - decoder->state.to_ip = 0; + decoder->state.type |= INTEL_PT_MWAIT_OP; decoder->state.mwait_payload = decoder->fup_mwait_payload; ret = true; } if (decoder->set_fup_pwre) { decoder->set_fup_pwre = false; decoder->state.type |= INTEL_PT_PWR_ENTRY; - decoder->state.type &= ~INTEL_PT_BRANCH; - decoder->state.from_ip = decoder->ip; - decoder->state.to_ip = 0; decoder->state.pwre_payload = decoder->fup_pwre_payload; ret = true; } if (decoder->set_fup_exstop) { decoder->set_fup_exstop = false; decoder->state.type |= INTEL_PT_EX_STOP; - decoder->state.type &= ~INTEL_PT_BRANCH; decoder->state.flags |= INTEL_PT_FUP_IP; - decoder->state.from_ip = decoder->ip; - decoder->state.to_ip = 0; ret = true; } if (decoder->set_fup_bep) { decoder->set_fup_bep = false; decoder->state.type |= INTEL_PT_BLK_ITEMS; - decoder->state.type &= ~INTEL_PT_BRANCH; + ret = true; + } + if (ret) { decoder->state.from_ip = decoder->ip; decoder->state.to_ip = 0; - ret = true; + } else { + decoder->state.type = type; } return ret; } From f747cc563afdb44630dde633c0d0a2a4ff9643f1 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:23:00 +0200 Subject: [PATCH 079/172] perf intel-pt: Fix state setting when receiving overflow (OVF) packet commit c79ee2b2160909889df67c8801352d3e69d43a1a upstream. An overflow (OVF packet) is treated as an error because it represents a loss of trace data, but there is no loss of synchronization, so the packet state should be INTEL_PT_STATE_IN_SYNC not INTEL_PT_STATE_ERR_RESYNC. To support that, some additional variables must be reset, and the FUP packet that may follow OVF is treated as an FUP event. Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- .../util/intel-pt-decoder/intel-pt-decoder.c | 32 ++++++++++++++++--- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 021d0bdf6acf..4dcd2b7e5d28 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -1248,6 +1248,20 @@ static bool intel_pt_fup_event(struct intel_pt_decoder *decoder) decoder->state.type |= INTEL_PT_BLK_ITEMS; ret = true; } + if (decoder->overflow) { + decoder->overflow = false; + if (!ret && !decoder->pge) { + if (decoder->hop) { + decoder->state.type = 0; + decoder->pkt_state = INTEL_PT_STATE_RESAMPLE; + } + decoder->pge = true; + decoder->state.type |= INTEL_PT_BRANCH | INTEL_PT_TRACE_BEGIN; + decoder->state.from_ip = 0; + decoder->state.to_ip = decoder->ip; + return true; + } + } if (ret) { decoder->state.from_ip = decoder->ip; decoder->state.to_ip = 0; @@ -1601,7 +1615,16 @@ static int intel_pt_overflow(struct intel_pt_decoder *decoder) intel_pt_clear_tx_flags(decoder); intel_pt_set_nr(decoder); decoder->timestamp_insn_cnt = 0; - decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC; + decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; + decoder->state.from_ip = decoder->ip; + decoder->ip = 0; + decoder->pge = false; + decoder->set_fup_tx_flags = false; + decoder->set_fup_ptw = false; + decoder->set_fup_mwait = false; + decoder->set_fup_pwre = false; + decoder->set_fup_exstop = false; + decoder->set_fup_bep = false; decoder->overflow = true; return -EOVERFLOW; } @@ -2956,6 +2979,7 @@ next: case INTEL_PT_TIP_PGE: { decoder->pge = true; + decoder->overflow = false; intel_pt_mtc_cyc_cnt_pge(decoder); intel_pt_set_nr(decoder); if (decoder->packet.count == 0) { @@ -3461,10 +3485,10 @@ static int intel_pt_sync_ip(struct intel_pt_decoder *decoder) decoder->set_fup_pwre = false; decoder->set_fup_exstop = false; decoder->set_fup_bep = false; + decoder->overflow = false; if (!decoder->branch_enable) { decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; - decoder->overflow = false; decoder->state.type = 0; /* Do not have a sample */ return 0; } @@ -3479,7 +3503,6 @@ static int intel_pt_sync_ip(struct intel_pt_decoder *decoder) decoder->pkt_state = INTEL_PT_STATE_RESAMPLE; else decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; - decoder->overflow = false; decoder->state.from_ip = 0; decoder->state.to_ip = decoder->ip; @@ -3698,7 +3721,8 @@ const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder) if (err) { decoder->state.err = intel_pt_ext_err(err); - decoder->state.from_ip = decoder->ip; + if (err != -EOVERFLOW) + decoder->state.from_ip = decoder->ip; intel_pt_update_sample_time(decoder); decoder->sample_tot_cyc_cnt = decoder->tot_cyc_cnt; intel_pt_set_nr(decoder); From 22e5fb70f7254263b7922047e50736c29f7af8dc Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:23:01 +0200 Subject: [PATCH 080/172] perf intel-pt: Fix next 'err' value, walking trace commit a32e6c5da599dbf49e60622a4dfb5b9b40ece029 upstream. Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero, but it may not be, if arrived at via a 'goto'. Ensure it is zero. Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 4dcd2b7e5d28..55e070f3895f 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -2941,6 +2941,7 @@ static int intel_pt_walk_trace(struct intel_pt_decoder *decoder) if (err) return err; next: + err = 0; if (decoder->cyc_threshold) { if (decoder->sample_cyc && last_packet_type != INTEL_PT_CYC) decoder->sample_cyc = false; From 4fbb83c1bf25e8d283cb165f3614852a1518a314 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:23:02 +0200 Subject: [PATCH 081/172] perf intel-pt: Fix missing 'instruction' events with 'q' option commit a882cc94971093e146ffa1163b140ad956236754 upstream. FUP packets contain IP information, which makes them also an 'instruction' event in 'hop' mode i.e. the itrace 'q' option. That wasn't happening, so restructure the logic so that FUP events are added along with appropriate 'instruction' and 'branch' events. Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 55e070f3895f..b0034ee4bba5 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -2682,6 +2682,8 @@ static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder); /* Hop mode: Ignore TNT, do not walk code, but get ip from FUPs and TIPs */ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, int *err) { + *err = 0; + /* Leap from PSB to PSB, getting ip from FUP within PSB+ */ if (decoder->leap && !decoder->in_psb && decoder->packet.type != INTEL_PT_PSB) { *err = intel_pt_scan_for_psb(decoder); @@ -2722,18 +2724,21 @@ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, in if (!decoder->packet.count) return HOP_IGNORE; intel_pt_set_ip(decoder); - if (intel_pt_fup_event(decoder)) - return HOP_RETURN; + if (decoder->set_fup_mwait || decoder->set_fup_pwre) + *no_tip = true; if (!decoder->branch_enable || !decoder->pge) *no_tip = true; if (*no_tip) { decoder->state.type = INTEL_PT_INSTRUCTION; decoder->state.from_ip = decoder->ip; decoder->state.to_ip = 0; + intel_pt_fup_event(decoder); return HOP_RETURN; } + intel_pt_fup_event(decoder); + decoder->state.type |= INTEL_PT_INSTRUCTION | INTEL_PT_BRANCH; *err = intel_pt_walk_fup_tip(decoder); - if (!*err) + if (!*err && decoder->state.to_ip) decoder->pkt_state = INTEL_PT_STATE_RESAMPLE; return HOP_RETURN; From 00cd8a99885c78efad89e84bc07d49d6eea7615c Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 10 Dec 2021 18:23:03 +0200 Subject: [PATCH 082/172] perf intel-pt: Fix error timestamp setting on the decoder error path commit 6665b8e4836caa8023cbc7e53733acd234969c8c upstream. An error timestamp shows the last known timestamp for the queue, but this is not updated on the error path. Fix by setting it. Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder") Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/intel-pt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 6f852b305e92..824bceb063bf 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -2510,6 +2510,7 @@ static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp) ptq->sync_switch = false; intel_pt_next_tid(pt, ptq); } + ptq->timestamp = state->est_timestamp; if (pt->synth_opts.errors) { err = intel_ptq_synth_error(ptq, state); if (err) From 50dacb2289e50a3ef8daf581f93f834147629915 Mon Sep 17 00:00:00 2001 From: Markus Hochholdinger Date: Tue, 16 Nov 2021 10:21:35 +0000 Subject: [PATCH 083/172] md: fix update super 1.0 on rdev size change commit 55df1ce0d4e086e05a8ab20619c73c729350f965 upstream. The superblock of version 1.0 doesn't get moved to the new position on a device size change. This leads to a rdev without a superblock on a known position, the raid can't be re-assembled. The line was removed by mistake and is re-added by this patch. Fixes: d9c0fa509eaf ("md: fix max sectors calculation for super 1.0") Cc: stable@vger.kernel.org Signed-off-by: Markus Hochholdinger Reviewed-by: Xiao Ni Signed-off-by: Song Liu Signed-off-by: Greg Kroah-Hartman --- drivers/md/md.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index e89eb467f142..44006b860d0a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2193,6 +2193,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors) if (!num_sectors || num_sectors > max_sectors) num_sectors = max_sectors; + rdev->sb_start = sb_start; } sb = page_address(rdev->sb_page); sb->data_size = cpu_to_le64(num_sectors); From 148c816f10fd11df27ca6a9b3238cdd42fa72cd3 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 29 Nov 2021 15:08:00 -0500 Subject: [PATCH 084/172] nfsd: fix use-after-free due to delegation race commit 548ec0805c399c65ed66c6641be467f717833ab5 upstream. A delegation break could arrive as soon as we've called vfs_setlease. A delegation break runs a callback which immediately (in nfsd4_cb_recall_prepare) adds the delegation to del_recall_lru. If we then exit nfs4_set_delegation without hashing the delegation, it will be freed as soon as the callback is done with it, without ever being removed from del_recall_lru. Symptoms show up later as use-after-free or list corruption warnings, usually in the laundromat thread. I suspect aba2072f4523 "nfsd: grant read delegations to clients holding writes" made this bug easier to hit, but I looked as far back as v3.0 and it looks to me it already had the same problem. So I'm not sure where the bug was introduced; it may have been there from the beginning. Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields Signed-off-by: Greg Kroah-Hartman --- fs/nfsd/nfs4state.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 3f4027a5de88..61301affb4c1 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1207,6 +1207,11 @@ hash_delegation_locked(struct nfs4_delegation *dp, struct nfs4_file *fp) return 0; } +static bool delegation_hashed(struct nfs4_delegation *dp) +{ + return !(list_empty(&dp->dl_perfile)); +} + static bool unhash_delegation_locked(struct nfs4_delegation *dp) { @@ -1214,7 +1219,7 @@ unhash_delegation_locked(struct nfs4_delegation *dp) lockdep_assert_held(&state_lock); - if (list_empty(&dp->dl_perfile)) + if (!delegation_hashed(dp)) return false; dp->dl_stid.sc_type = NFS4_CLOSED_DELEG_STID; @@ -4598,7 +4603,7 @@ static void nfsd4_cb_recall_prepare(struct nfsd4_callback *cb) * queued for a lease break. Don't queue it again. */ spin_lock(&state_lock); - if (dp->dl_time == 0) { + if (delegation_hashed(dp) && dp->dl_time == 0) { dp->dl_time = ktime_get_boottime_seconds(); list_add_tail(&dp->dl_recall_lru, &nn->del_recall_lru); } From 8bf902fee5893cfc2f04a698abab47629699ae9a Mon Sep 17 00:00:00 2001 From: Alexander Sverdlin Date: Tue, 7 Dec 2021 15:00:39 +0100 Subject: [PATCH 085/172] nfsd: Fix nsfd startup race (again) commit b10252c7ae9c9d7c90552f88b544a44ee773af64 upstream. Commit bd5ae9288d64 ("nfsd: register pernet ops last, unregister first") has re-opened rpc_pipefs_event() race against nfsd_net_id registration (register_pernet_subsys()) which has been fixed by commit bb7ffbf29e76 ("nfsd: fix nsfd startup race triggering BUG_ON"). Restore the order of register_pernet_subsys() vs register_cld_notifier(). Add WARN_ON() to prevent a future regression. Crash info: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000012 CPU: 8 PID: 345 Comm: mount Not tainted 5.4.144-... #1 pc : rpc_pipefs_event+0x54/0x120 [nfsd] lr : rpc_pipefs_event+0x48/0x120 [nfsd] Call trace: rpc_pipefs_event+0x54/0x120 [nfsd] blocking_notifier_call_chain rpc_fill_super get_tree_keyed rpc_fs_get_tree vfs_get_tree do_mount ksys_mount __arm64_sys_mount el0_svc_handler el0_svc Fixes: bd5ae9288d64 ("nfsd: register pernet ops last, unregister first") Cc: stable@vger.kernel.org Signed-off-by: Alexander Sverdlin Signed-off-by: J. Bruce Fields Signed-off-by: Greg Kroah-Hartman --- fs/nfsd/nfs4recover.c | 1 + fs/nfsd/nfsctl.c | 14 +++++++------- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index 6fedc49726bf..c634483d85d2 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -2156,6 +2156,7 @@ static struct notifier_block nfsd4_cld_block = { int register_cld_notifier(void) { + WARN_ON(!nfsd_net_id); return rpc_pipefs_notifier_register(&nfsd4_cld_block); } diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 070e5dd03e26..5ed04d6be9a5 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1521,12 +1521,9 @@ static int __init init_nfsd(void) int retval; printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n"); - retval = register_cld_notifier(); - if (retval) - return retval; retval = nfsd4_init_slabs(); if (retval) - goto out_unregister_notifier; + return retval; retval = nfsd4_init_pnfs(); if (retval) goto out_free_slabs; @@ -1545,9 +1542,14 @@ static int __init init_nfsd(void) goto out_free_exports; retval = register_pernet_subsys(&nfsd_net_ops); if (retval < 0) + goto out_free_filesystem; + retval = register_cld_notifier(); + if (retval) goto out_free_all; return 0; out_free_all: + unregister_pernet_subsys(&nfsd_net_ops); +out_free_filesystem: unregister_filesystem(&nfsd_fs_type); out_free_exports: remove_proc_entry("fs/nfs/exports", NULL); @@ -1561,13 +1563,12 @@ out_free_pnfs: nfsd4_exit_pnfs(); out_free_slabs: nfsd4_free_slabs(); -out_unregister_notifier: - unregister_cld_notifier(); return retval; } static void __exit exit_nfsd(void) { + unregister_cld_notifier(); unregister_pernet_subsys(&nfsd_net_ops); nfsd_drc_slab_free(); remove_proc_entry("fs/nfs/exports", NULL); @@ -1577,7 +1578,6 @@ static void __exit exit_nfsd(void) nfsd4_free_slabs(); nfsd4_exit_pnfs(); unregister_filesystem(&nfsd_fs_type); - unregister_cld_notifier(); } MODULE_AUTHOR("Olaf Kirch "); From 041aae47b00040a40b387b7ccd7f95c1f05e95f9 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Wed, 8 Dec 2021 07:57:20 -0500 Subject: [PATCH 086/172] tracefs: Have new files inherit the ownership of their parent commit ee7f3666995d8537dec17b1d35425f28877671a9 upstream. If directories in tracefs have their ownership changed, then any new files and directories that are created under those directories should inherit the ownership of the director they are created in. Link: https://lkml.kernel.org/r/20211208075720.4855d180@gandalf.local.home Cc: Kees Cook Cc: Ingo Molnar Cc: Andrew Morton Cc: Linus Torvalds Cc: Al Viro Cc: Greg Kroah-Hartman Cc: Yabin Cui Cc: Christian Brauner Cc: stable@vger.kernel.org Fixes: 4282d60689d4f ("tracefs: Add new tracefs file system") Reported-by: Kalesh Singh Reported: https://lore.kernel.org/all/CAC_TJve8MMAv+H_NdLSJXZUSoxOEq2zB_pVaJ9p=7H6Bu3X76g@mail.gmail.com/ Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Greg Kroah-Hartman --- fs/tracefs/inode.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c index 925a621b432e..06cf0534cc60 100644 --- a/fs/tracefs/inode.c +++ b/fs/tracefs/inode.c @@ -414,6 +414,8 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode, inode->i_mode = mode; inode->i_fop = fops ? fops : &tracefs_file_operations; inode->i_private = data; + inode->i_uid = d_inode(dentry->d_parent)->i_uid; + inode->i_gid = d_inode(dentry->d_parent)->i_gid; d_instantiate(dentry, inode); fsnotify_create(dentry->d_parent->d_inode, dentry); return end_creating(dentry); @@ -436,6 +438,8 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent, inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP; inode->i_op = ops; inode->i_fop = &simple_dir_operations; + inode->i_uid = d_inode(dentry->d_parent)->i_uid; + inode->i_gid = d_inode(dentry->d_parent)->i_gid; /* directory inodes start off with i_nlink == 2 (for "." entry) */ inc_nlink(inode); From a85d27b2eff4f5f58a871e159cb9e33313e1ef64 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 5 Aug 2021 06:54:23 -0400 Subject: [PATCH 087/172] selftests: KVM: avoid failures due to reserved HyperTransport region commit c8cc43c1eae2910ac96daa4216e0fb3391ad0504 upstream. AMD proceessors define an address range that is reserved by HyperTransport and causes a failure if used for guest physical addresses. Avoid selftests failures by reserving those guest physical addresses; the rules are: - On parts with <40 bits, its fully hidden from software. - Before Fam17h, it was always 12G just below 1T, even if there was more RAM above this location. In this case we just not use any RAM above 1T. - On Fam17h and later, it is variable based on SME, and is either just below 2^48 (no encryption) or 2^43 (encryption). Fixes: ef4c9f4f6546 ("KVM: selftests: Fix 32-bit truncation of vm_get_max_gfn()") Cc: stable@vger.kernel.org Cc: David Matlack Reported-by: Maxim Levitsky Signed-off-by: Paolo Bonzini Message-Id: <20210805105423.412878-1-pbonzini@redhat.com> Reviewed-by: Sean Christopherson Tested-by: Sean Christopherson Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- .../testing/selftests/kvm/include/kvm_util.h | 9 +++ tools/testing/selftests/kvm/lib/kvm_util.c | 2 +- .../selftests/kvm/lib/x86_64/processor.c | 68 +++++++++++++++++++ 3 files changed, 78 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index 010b59b13917..35314277fb58 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -69,6 +69,15 @@ enum vm_guest_mode { #endif +#if defined(__x86_64__) +unsigned long vm_compute_max_gfn(struct kvm_vm *vm); +#else +static inline unsigned long vm_compute_max_gfn(struct kvm_vm *vm) +{ + return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1; +} +#endif + #define MIN_PAGE_SIZE (1U << MIN_PAGE_SHIFT) #define PTES_PER_MIN_PAGE ptes_per_page(MIN_PAGE_SIZE) diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 10a8ed691c66..c439fb653fde 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -307,7 +307,7 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm) (1ULL << (vm->va_bits - 1)) >> vm->page_shift); /* Limit physical addresses to PA-bits. */ - vm->max_gfn = ((1ULL << vm->pa_bits) >> vm->page_shift) - 1; + vm->max_gfn = vm_compute_max_gfn(vm); /* Allocate and setup memory for guest. */ vm->vpages_mapped = sparsebit_alloc(); diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 28cb881f440d..da73b97e1e6d 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -1433,3 +1433,71 @@ struct kvm_cpuid2 *vcpu_get_supported_hv_cpuid(struct kvm_vm *vm, uint32_t vcpui return cpuid; } + +#define X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx 0x68747541 +#define X86EMUL_CPUID_VENDOR_AuthenticAMD_ecx 0x444d4163 +#define X86EMUL_CPUID_VENDOR_AuthenticAMD_edx 0x69746e65 + +static inline unsigned x86_family(unsigned int eax) +{ + unsigned int x86; + + x86 = (eax >> 8) & 0xf; + + if (x86 == 0xf) + x86 += (eax >> 20) & 0xff; + + return x86; +} + +unsigned long vm_compute_max_gfn(struct kvm_vm *vm) +{ + const unsigned long num_ht_pages = 12 << (30 - vm->page_shift); /* 12 GiB */ + unsigned long ht_gfn, max_gfn, max_pfn; + uint32_t eax, ebx, ecx, edx, max_ext_leaf; + + max_gfn = (1ULL << (vm->pa_bits - vm->page_shift)) - 1; + + /* Avoid reserved HyperTransport region on AMD processors. */ + eax = ecx = 0; + cpuid(&eax, &ebx, &ecx, &edx); + if (ebx != X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx || + ecx != X86EMUL_CPUID_VENDOR_AuthenticAMD_ecx || + edx != X86EMUL_CPUID_VENDOR_AuthenticAMD_edx) + return max_gfn; + + /* On parts with <40 physical address bits, the area is fully hidden */ + if (vm->pa_bits < 40) + return max_gfn; + + /* Before family 17h, the HyperTransport area is just below 1T. */ + ht_gfn = (1 << 28) - num_ht_pages; + eax = 1; + cpuid(&eax, &ebx, &ecx, &edx); + if (x86_family(eax) < 0x17) + goto done; + + /* + * Otherwise it's at the top of the physical address space, possibly + * reduced due to SME by bits 11:6 of CPUID[0x8000001f].EBX. Use + * the old conservative value if MAXPHYADDR is not enumerated. + */ + eax = 0x80000000; + cpuid(&eax, &ebx, &ecx, &edx); + max_ext_leaf = eax; + if (max_ext_leaf < 0x80000008) + goto done; + + eax = 0x80000008; + cpuid(&eax, &ebx, &ecx, &edx); + max_pfn = (1ULL << ((eax & 0xff) - vm->page_shift)) - 1; + if (max_ext_leaf >= 0x8000001f) { + eax = 0x8000001f; + cpuid(&eax, &ebx, &ecx, &edx); + max_pfn >>= (ebx >> 6) & 0x3f; + } + + ht_gfn = max_pfn - num_ht_pages; +done: + return min(max_gfn, ht_gfn - 1); +} From 62c613419543a00317783d58144684bfbb24b3a4 Mon Sep 17 00:00:00 2001 From: Billy Tsai Date: Tue, 30 Nov 2021 17:22:12 +0800 Subject: [PATCH 088/172] hwmon: (pwm-fan) Ensure the fan going on in .probe() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit a2ca752055edd39be38b887e264d3de7ca2bc1bb upstream. Before commit 86585c61972f ("hwmon: (pwm-fan) stop using legacy PWM functions and some cleanups") pwm_apply_state() was called unconditionally in pwm_fan_probe(). In this commit this direct call was replaced by a call to __set_pwm(ct, MAX_PWM) which however is a noop if ctx->pwm_value already matches the value to set. After probe the fan is supposed to run at full speed, and the internal driver state suggests it does, but this isn't asserted and depending on bootloader and pwm low-level driver, the fan might just be off. So drop setting pwm_value to MAX_PWM to ensure the check in __set_pwm doesn't make it exit early and the fan goes on as intended. Cc: stable@vger.kernel.org Fixes: 86585c61972f ("hwmon: (pwm-fan) stop using legacy PWM functions and some cleanups") Signed-off-by: Billy Tsai Reviewed-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20211130092212.17783-1-billy_tsai@aspeedtech.com Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/pwm-fan.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c index 17518b4cab1b..f12b9a28a232 100644 --- a/drivers/hwmon/pwm-fan.c +++ b/drivers/hwmon/pwm-fan.c @@ -336,8 +336,6 @@ static int pwm_fan_probe(struct platform_device *pdev) return ret; } - ctx->pwm_value = MAX_PWM; - pwm_init_state(ctx->pwm, &ctx->pwm_state); /* From dfb7285a82faafb3930f138444fd1a6ddeed2634 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 30 Nov 2021 14:23:09 +0100 Subject: [PATCH 089/172] mmc: renesas_sdhi: initialize variable properly when tuning commit 7dba402807a85fa3723f4a27504813caf81cc9d7 upstream. 'cmd_error' is not necessarily initialized on some error paths in mmc_send_tuning(). Initialize it. Fixes: 2c9017d0b5d3 ("mmc: renesas_sdhi: abort tuning when timeout detected") Reported-by: Dan Carpenter Signed-off-by: Wolfram Sang Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211130132309.18246-1-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/renesas_sdhi_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index a4407f391f66..f5b2684ad805 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -673,7 +673,7 @@ static int renesas_sdhi_execute_tuning(struct mmc_host *mmc, u32 opcode) /* Issue CMD19 twice for each tap */ for (i = 0; i < 2 * priv->tap_num; i++) { - int cmd_error; + int cmd_error = 0; /* Set sampling clock position */ sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_TAPSET, i % priv->tap_num); From 0138d396ffcecf9031fc5f2be9f5480938c1efe7 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Tue, 16 Nov 2021 02:34:07 +0300 Subject: [PATCH 090/172] clk: qcom: regmap-mux: fix parent clock lookup commit 9a61f813fcc8d56d85fcf9ca6119cf2b5ac91dd5 upstream. The function mux_get_parent() uses qcom_find_src_index() to find the parent clock index, which is incorrect: qcom_find_src_index() uses src enum for the lookup, while mux_get_parent() should use cfg field (which corresponds to the register value). Add qcom_find_cfg_index() function doing this kind of lookup and use it for mux parent lookup. Fixes: df964016490b ("clk: qcom: add parent map for regmap mux") Cc: stable@vger.kernel.org Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20211115233407.1046179-1-dmitry.baryshkov@linaro.org Signed-off-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman --- drivers/clk/qcom/clk-regmap-mux.c | 2 +- drivers/clk/qcom/common.c | 12 ++++++++++++ drivers/clk/qcom/common.h | 2 ++ 3 files changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/clk/qcom/clk-regmap-mux.c b/drivers/clk/qcom/clk-regmap-mux.c index b2d00b451963..45d9cca28064 100644 --- a/drivers/clk/qcom/clk-regmap-mux.c +++ b/drivers/clk/qcom/clk-regmap-mux.c @@ -28,7 +28,7 @@ static u8 mux_get_parent(struct clk_hw *hw) val &= mask; if (mux->parent_map) - return qcom_find_src_index(hw, mux->parent_map, val); + return qcom_find_cfg_index(hw, mux->parent_map, val); return val; } diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c index 60d2a78d1395..2af04fc4abfa 100644 --- a/drivers/clk/qcom/common.c +++ b/drivers/clk/qcom/common.c @@ -69,6 +69,18 @@ int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map, u8 src) } EXPORT_SYMBOL_GPL(qcom_find_src_index); +int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map, u8 cfg) +{ + int i, num_parents = clk_hw_get_num_parents(hw); + + for (i = 0; i < num_parents; i++) + if (cfg == map[i].cfg) + return i; + + return -ENOENT; +} +EXPORT_SYMBOL_GPL(qcom_find_cfg_index); + struct regmap * qcom_cc_map(struct platform_device *pdev, const struct qcom_cc_desc *desc) { diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h index bb39a7e106d8..9c8f7b798d9f 100644 --- a/drivers/clk/qcom/common.h +++ b/drivers/clk/qcom/common.h @@ -49,6 +49,8 @@ extern void qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count); extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map, u8 src); +extern int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map, + u8 cfg); extern int qcom_cc_register_board_clk(struct device *dev, const char *path, const char *name, unsigned long rate); From 021ae1e11dfc33b03b1cc83a2d76431aa5de1e20 Mon Sep 17 00:00:00 2001 From: Sumeet Pawnikar Date: Tue, 7 Dec 2021 18:05:39 +0530 Subject: [PATCH 091/172] thermal: int340x: Fix VCoRefLow MMIO bit offset for TGL commit f872f73601b92c86f3da8bdf3e19abd0f1780eb9 upstream. The VCoRefLow CPU FIVR register definition for Tiger Lake is incorrect. Current implementation reads it from MMIO offset 0x5A18 and bit offset [12:14], but the actual correct register definition is from bit offset [11:13]. Update to fix the bit offset. Fixes: 473be51142ad ("thermal: int340x: processor_thermal: Add RFIM driver") Signed-off-by: Sumeet Pawnikar Cc: 5.14+ # 5.14+ [ rjw: New subject, changelog edits ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c index 2b8a3235d518..3b3e81f99a34 100644 --- a/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c +++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_rfim.c @@ -29,7 +29,7 @@ static const char * const fivr_strings[] = { }; static const struct mmio_reg tgl_fivr_mmio_regs[] = { - { 0, 0x5A18, 3, 0x7, 12}, /* vco_ref_code_lo */ + { 0, 0x5A18, 3, 0x7, 11}, /* vco_ref_code_lo */ { 0, 0x5A18, 8, 0xFF, 16}, /* vco_ref_code_hi */ { 0, 0x5A08, 8, 0xFF, 0}, /* spread_spectrum_pct */ { 0, 0x5A08, 1, 0x1, 8}, /* spread_spectrum_clk_enable */ From b0034d4b71f140aa758a461ba2a556efd4150dd5 Mon Sep 17 00:00:00 2001 From: Bas Nieuwenhuizen Date: Wed, 8 Dec 2021 03:39:35 +0100 Subject: [PATCH 092/172] drm/syncobj: Deal with signalled fences in drm_syncobj_find_fence. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit b19926d4f3a660a8b76e5d989ffd1168e619a5c4 upstream. dma_fence_chain_find_seqno only ever returns the top fence in the chain or an unsignalled fence. Hence if we request a seqno that is already signalled it returns a NULL fence. Some callers are not prepared to handle this, like the syncobj transfer functions for example. This behavior is "new" with timeline syncobj and it looks like not all callers were updated. To fix this behavior make sure that a successful drm_sync_find_fence always returns a non-NULL fence. v2: Move the fix to drm_syncobj_find_fence from the transfer functions. Fixes: ea569910cbab ("drm/syncobj: add transition iotcls between binary and timeline v2") Cc: stable@vger.kernel.org Signed-off-by: Bas Nieuwenhuizen Reviewed-by: Christian König Acked-by: Lionel Landwerlin Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20211208023935.17018-1-bas@basnieuwenhuizen.nl Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/drm_syncobj.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index c9a9d74f338c..c313a5b4549c 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -404,8 +404,17 @@ int drm_syncobj_find_fence(struct drm_file *file_private, if (*fence) { ret = dma_fence_chain_find_seqno(fence, point); - if (!ret) + if (!ret) { + /* If the requested seqno is already signaled + * drm_syncobj_find_fence may return a NULL + * fence. To make sure the recipient gets + * signalled, use a new fence instead. + */ + if (!*fence) + *fence = dma_fence_get_stub(); + goto out; + } dma_fence_put(*fence); } else { ret = -EINVAL; From eb313c47b2762565d48627d49ce661ae5018d155 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Wed, 8 Dec 2021 07:58:53 +0100 Subject: [PATCH 093/172] libata: add horkage for ASMedia 1092 commit a66307d473077b7aeba74e9b09c841ab3d399c2d upstream. The ASMedia 1092 has a configuration mode which will present a dummy device; sadly the implementation falsely claims to provide a device with 100M which doesn't actually exist. So disable this device to avoid errors during boot. Cc: stable@vger.kernel.org Signed-off-by: Hannes Reinecke Signed-off-by: Damien Le Moal Signed-off-by: Greg Kroah-Hartman --- drivers/ata/libata-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index d8c3e730f7c2..4d848cfc406f 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -3856,6 +3856,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "VRFDFC22048UCHC-TE*", NULL, ATA_HORKAGE_NODMA }, /* Odd clown on sil3726/4726 PMPs */ { "Config Disk", NULL, ATA_HORKAGE_DISABLE }, + /* Similar story with ASMedia 1092 */ + { "ASMT109x- Config", NULL, ATA_HORKAGE_DISABLE }, /* Weird ATAPI devices */ { "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 }, From 8e12976c0c19ebc14b60046b1348c516a74c25a2 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 9 Dec 2021 08:54:29 -0700 Subject: [PATCH 094/172] io_uring: ensure task_work gets run as part of cancelations commit 78a780602075d8b00c98070fa26e389b3b3efa72 upstream. If we successfully cancel a work item but that work item needs to be processed through task_work, then we can be sleeping uninterruptibly in io_uring_cancel_generic() and never process it. Hence we don't make forward progress and we end up with an uninterruptible sleep warning. While in there, correct a comment that should be IFF, not IIF. Reported-and-tested-by: syzbot+21e6887c0be14181206d@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- fs/io_uring.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index f8ceddafb6fc..e9b06e339c4b 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -9775,7 +9775,7 @@ static void io_uring_drop_tctx_refs(struct task_struct *task) /* * Find any io_uring ctx that this task has registered or done IO on, and cancel - * requests. @sqd should be not-null IIF it's an SQPOLL thread cancellation. + * requests. @sqd should be not-null IFF it's an SQPOLL thread cancellation. */ static void io_uring_cancel_generic(bool cancel_all, struct io_sq_data *sqd) { @@ -9816,8 +9816,10 @@ static void io_uring_cancel_generic(bool cancel_all, struct io_sq_data *sqd) cancel_all); } - prepare_to_wait(&tctx->wait, &wait, TASK_UNINTERRUPTIBLE); + prepare_to_wait(&tctx->wait, &wait, TASK_INTERRUPTIBLE); + io_run_task_work(); io_uring_drop_tctx_refs(current); + /* * If we've seen completions, retry without waiting. This * avoids a race where a completion comes in before we did From 1ebb6cd8c754bfe1a5f9539027980756bce7cb08 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 8 Dec 2021 17:04:51 -0800 Subject: [PATCH 095/172] wait: add wake_up_pollfree() commit 42288cb44c4b5fff7653bc392b583a2b8bd6a8c0 upstream. Several ->poll() implementations are special in that they use a waitqueue whose lifetime is the current task, rather than the struct file as is normally the case. This is okay for blocking polls, since a blocking poll occurs within one task; however, non-blocking polls require another solution. This solution is for the queue to be cleared before it is freed, using 'wake_up_poll(wq, EPOLLHUP | POLLFREE);'. However, that has a bug: wake_up_poll() calls __wake_up() with nr_exclusive=1. Therefore, if there are multiple "exclusive" waiters, and the wakeup function for the first one returns a positive value, only that one will be called. That's *not* what's needed for POLLFREE; POLLFREE is special in that it really needs to wake up everyone. Considering the three non-blocking poll systems: - io_uring poll doesn't handle POLLFREE at all, so it is broken anyway. - aio poll is unaffected, since it doesn't support exclusive waits. However, that's fragile, as someone could add this feature later. - epoll doesn't appear to be broken by this, since its wakeup function returns 0 when it sees POLLFREE. But this is fragile. Although there is a workaround (see epoll), it's better to define a function which always sends POLLFREE to all waiters. Add such a function. Also make it verify that the queue really becomes empty after all waiters have been woken up. Reported-by: Linus Torvalds Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211209010455.42744-2-ebiggers@kernel.org Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- include/linux/wait.h | 26 ++++++++++++++++++++++++++ kernel/sched/wait.c | 7 +++++++ 2 files changed, 33 insertions(+) diff --git a/include/linux/wait.h b/include/linux/wait.h index 93dab0e9580f..d22cf2985b8f 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -217,6 +217,7 @@ void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void void __wake_up_locked_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void *key); void __wake_up_locked(struct wait_queue_head *wq_head, unsigned int mode, int nr); void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode); +void __wake_up_pollfree(struct wait_queue_head *wq_head); #define wake_up(x) __wake_up(x, TASK_NORMAL, 1, NULL) #define wake_up_nr(x, nr) __wake_up(x, TASK_NORMAL, nr, NULL) @@ -245,6 +246,31 @@ void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode); #define wake_up_interruptible_sync_poll_locked(x, m) \ __wake_up_locked_sync_key((x), TASK_INTERRUPTIBLE, poll_to_key(m)) +/** + * wake_up_pollfree - signal that a polled waitqueue is going away + * @wq_head: the wait queue head + * + * In the very rare cases where a ->poll() implementation uses a waitqueue whose + * lifetime is tied to a task rather than to the 'struct file' being polled, + * this function must be called before the waitqueue is freed so that + * non-blocking polls (e.g. epoll) are notified that the queue is going away. + * + * The caller must also RCU-delay the freeing of the wait_queue_head, e.g. via + * an explicit synchronize_rcu() or call_rcu(), or via SLAB_TYPESAFE_BY_RCU. + */ +static inline void wake_up_pollfree(struct wait_queue_head *wq_head) +{ + /* + * For performance reasons, we don't always take the queue lock here. + * Therefore, we might race with someone removing the last entry from + * the queue, and proceed while they still hold the queue lock. + * However, rcu_read_lock() is required to be held in such cases, so we + * can safely proceed with an RCU-delayed free. + */ + if (waitqueue_active(wq_head)) + __wake_up_pollfree(wq_head); +} + #define ___wait_cond_timeout(condition) \ ({ \ bool __cond = (condition); \ diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c index 76577d1642a5..eca38107b32f 100644 --- a/kernel/sched/wait.c +++ b/kernel/sched/wait.c @@ -238,6 +238,13 @@ void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode) } EXPORT_SYMBOL_GPL(__wake_up_sync); /* For internal use only */ +void __wake_up_pollfree(struct wait_queue_head *wq_head) +{ + __wake_up(wq_head, TASK_NORMAL, 0, poll_to_key(EPOLLHUP | POLLFREE)); + /* POLLFREE must have cleared the queue. */ + WARN_ON_ONCE(waitqueue_active(wq_head)); +} + /* * Note: we use "set_current_state()" _after_ the wait-queue add, * because we need a memory barrier there on SMP, so that any From f12d997683a7a97e7af834d3181fad61ad67df47 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 8 Dec 2021 17:04:52 -0800 Subject: [PATCH 096/172] binder: use wake_up_pollfree() commit a880b28a71e39013e357fd3adccd1d8a31bc69a8 upstream. wake_up_poll() uses nr_exclusive=1, so it's not guaranteed to wake up all exclusive waiters. Yet, POLLFREE *must* wake up all waiters. epoll and aio poll are fortunately not affected by this, but it's very fragile. Thus, the new function wake_up_pollfree() has been introduced. Convert binder to use wake_up_pollfree(). Reported-by: Linus Torvalds Fixes: f5cb779ba163 ("ANDROID: binder: remove waitqueue when thread exits.") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211209010455.42744-3-ebiggers@kernel.org Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- drivers/android/binder.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/drivers/android/binder.c b/drivers/android/binder.c index cffbe57a8e08..c75fb600740c 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -4422,23 +4422,20 @@ static int binder_thread_release(struct binder_proc *proc, __release(&t->lock); /* - * If this thread used poll, make sure we remove the waitqueue - * from any epoll data structures holding it with POLLFREE. - * waitqueue_active() is safe to use here because we're holding - * the inner lock. + * If this thread used poll, make sure we remove the waitqueue from any + * poll data structures holding it. */ - if ((thread->looper & BINDER_LOOPER_STATE_POLL) && - waitqueue_active(&thread->wait)) { - wake_up_poll(&thread->wait, EPOLLHUP | POLLFREE); - } + if (thread->looper & BINDER_LOOPER_STATE_POLL) + wake_up_pollfree(&thread->wait); binder_inner_proc_unlock(thread->proc); /* - * This is needed to avoid races between wake_up_poll() above and - * and ep_remove_waitqueue() called for other reasons (eg the epoll file - * descriptor being closed); ep_remove_waitqueue() holds an RCU read - * lock, so we can be sure it's done after calling synchronize_rcu(). + * This is needed to avoid races between wake_up_pollfree() above and + * someone else removing the last entry from the queue for other reasons + * (e.g. ep_remove_wait_queue() being called due to an epoll file + * descriptor being closed). Such other users hold an RCU read lock, so + * we can be sure they're done after we call synchronize_rcu(). */ if (thread->looper & BINDER_LOOPER_STATE_POLL) synchronize_rcu(); From 8d6760fd5d1604df29dd7651033167ef99a7698d Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 8 Dec 2021 17:04:53 -0800 Subject: [PATCH 097/172] signalfd: use wake_up_pollfree() commit 9537bae0da1f8d1e2361ab6d0479e8af7824e160 upstream. wake_up_poll() uses nr_exclusive=1, so it's not guaranteed to wake up all exclusive waiters. Yet, POLLFREE *must* wake up all waiters. epoll and aio poll are fortunately not affected by this, but it's very fragile. Thus, the new function wake_up_pollfree() has been introduced. Convert signalfd to use wake_up_pollfree(). Reported-by: Linus Torvalds Fixes: d80e731ecab4 ("epoll: introduce POLLFREE to flush ->signalfd_wqh before kfree()") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211209010455.42744-4-ebiggers@kernel.org Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- fs/signalfd.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/fs/signalfd.c b/fs/signalfd.c index 040e1cf90528..65ce0e72e7b9 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -35,17 +35,7 @@ void signalfd_cleanup(struct sighand_struct *sighand) { - wait_queue_head_t *wqh = &sighand->signalfd_wqh; - /* - * The lockless check can race with remove_wait_queue() in progress, - * but in this case its caller should run under rcu_read_lock() and - * sighand_cachep is SLAB_TYPESAFE_BY_RCU, we can safely return. - */ - if (likely(!waitqueue_active(wqh))) - return; - - /* wait_queue_entry_t->func(POLLFREE) should do remove_wait_queue() */ - wake_up_poll(wqh, EPOLLHUP | POLLFREE); + wake_up_pollfree(&sighand->signalfd_wqh); } struct signalfd_ctx { From 924f51534d428e91c98ea309ab16270f5e8289c6 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 8 Dec 2021 17:04:54 -0800 Subject: [PATCH 098/172] aio: keep poll requests on waitqueue until completed commit 363bee27e25804d8981dd1c025b4ad49dc39c530 upstream. Currently, aio_poll_wake() will always remove the poll request from the waitqueue. Then, if aio_poll_complete_work() sees that none of the polled events are ready and the request isn't cancelled, it re-adds the request to the waitqueue. (This can easily happen when polling a file that doesn't pass an event mask when waking up its waitqueue.) This is fundamentally broken for two reasons: 1. If a wakeup occurs between vfs_poll() and the request being re-added to the waitqueue, it will be missed because the request wasn't on the waitqueue at the time. Therefore, IOCB_CMD_POLL might never complete even if the polled file is ready. 2. When the request isn't on the waitqueue, there is no way to be notified that the waitqueue is being freed (which happens when its lifetime is shorter than the struct file's). This is supposed to happen via the waitqueue entries being woken up with POLLFREE. Therefore, leave the requests on the waitqueue until they are actually completed (or cancelled). To keep track of when aio_poll_complete_work needs to be scheduled, use new fields in struct poll_iocb. Remove the 'done' field which is now redundant. Note that this is consistent with how sys_poll() and eventpoll work; their wakeup functions do *not* remove the waitqueue entries. Fixes: 2c14fa838cbe ("aio: implement IOCB_CMD_POLL") Cc: # v4.18+ Link: https://lore.kernel.org/r/20211209010455.42744-5-ebiggers@kernel.org Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- fs/aio.c | 83 ++++++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 63 insertions(+), 20 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index 51b08ab01dff..ab6b3e090d26 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -181,8 +181,9 @@ struct poll_iocb { struct file *file; struct wait_queue_head *head; __poll_t events; - bool done; bool cancelled; + bool work_scheduled; + bool work_need_resched; struct wait_queue_entry wait; struct work_struct work; }; @@ -1639,14 +1640,26 @@ static void aio_poll_complete_work(struct work_struct *work) * avoid further branches in the fast path. */ spin_lock_irq(&ctx->ctx_lock); + spin_lock(&req->head->lock); if (!mask && !READ_ONCE(req->cancelled)) { - add_wait_queue(req->head, &req->wait); + /* + * The request isn't actually ready to be completed yet. + * Reschedule completion if another wakeup came in. + */ + if (req->work_need_resched) { + schedule_work(&req->work); + req->work_need_resched = false; + } else { + req->work_scheduled = false; + } + spin_unlock(&req->head->lock); spin_unlock_irq(&ctx->ctx_lock); return; } + list_del_init(&req->wait.entry); + spin_unlock(&req->head->lock); list_del_init(&iocb->ki_list); iocb->ki_res.res = mangle_poll(mask); - req->done = true; spin_unlock_irq(&ctx->ctx_lock); iocb_put(iocb); @@ -1660,9 +1673,9 @@ static int aio_poll_cancel(struct kiocb *iocb) spin_lock(&req->head->lock); WRITE_ONCE(req->cancelled, true); - if (!list_empty(&req->wait.entry)) { - list_del_init(&req->wait.entry); + if (!req->work_scheduled) { schedule_work(&aiocb->poll.work); + req->work_scheduled = true; } spin_unlock(&req->head->lock); @@ -1681,20 +1694,26 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, if (mask && !(mask & req->events)) return 0; - list_del_init(&req->wait.entry); - - if (mask && spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) { + /* + * Complete the request inline if possible. This requires that three + * conditions be met: + * 1. An event mask must have been passed. If a plain wakeup was done + * instead, then mask == 0 and we have to call vfs_poll() to get + * the events, so inline completion isn't possible. + * 2. The completion work must not have already been scheduled. + * 3. ctx_lock must not be busy. We have to use trylock because we + * already hold the waitqueue lock, so this inverts the normal + * locking order. Use irqsave/irqrestore because not all + * filesystems (e.g. fuse) call this function with IRQs disabled, + * yet IRQs have to be disabled before ctx_lock is obtained. + */ + if (mask && !req->work_scheduled && + spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) { struct kioctx *ctx = iocb->ki_ctx; - /* - * Try to complete the iocb inline if we can. Use - * irqsave/irqrestore because not all filesystems (e.g. fuse) - * call this function with IRQs disabled and because IRQs - * have to be disabled before ctx_lock is obtained. - */ + list_del_init(&req->wait.entry); list_del(&iocb->ki_list); iocb->ki_res.res = mangle_poll(mask); - req->done = true; if (iocb->ki_eventfd && eventfd_signal_allowed()) { iocb = NULL; INIT_WORK(&req->work, aio_poll_put_work); @@ -1704,7 +1723,20 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, if (iocb) iocb_put(iocb); } else { - schedule_work(&req->work); + /* + * Schedule the completion work if needed. If it was already + * scheduled, record that another wakeup came in. + * + * Don't remove the request from the waitqueue here, as it might + * not actually be complete yet (we won't know until vfs_poll() + * is called), and we must not miss any wakeups. + */ + if (req->work_scheduled) { + req->work_need_resched = true; + } else { + schedule_work(&req->work); + req->work_scheduled = true; + } } return 1; } @@ -1751,8 +1783,9 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) req->events = demangle_poll(iocb->aio_buf) | EPOLLERR | EPOLLHUP; req->head = NULL; - req->done = false; req->cancelled = false; + req->work_scheduled = false; + req->work_need_resched = false; apt.pt._qproc = aio_poll_queue_proc; apt.pt._key = req->events; @@ -1767,17 +1800,27 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) spin_lock_irq(&ctx->ctx_lock); if (likely(req->head)) { spin_lock(&req->head->lock); - if (unlikely(list_empty(&req->wait.entry))) { - if (apt.error) + if (list_empty(&req->wait.entry) || req->work_scheduled) { + /* + * aio_poll_wake() already either scheduled the async + * completion work, or completed the request inline. + */ + if (apt.error) /* unsupported case: multiple queues */ cancel = true; apt.error = 0; mask = 0; } if (mask || apt.error) { + /* Steal to complete synchronously. */ list_del_init(&req->wait.entry); } else if (cancel) { + /* Cancel if possible (may be too late though). */ WRITE_ONCE(req->cancelled, true); - } else if (!req->done) { /* actually waiting for an event */ + } else if (!list_empty(&req->wait.entry)) { + /* + * Actually waiting for an event, so add the request to + * active_reqs so that it can be cancelled if needed. + */ list_add_tail(&aiocb->ki_list, &ctx->active_reqs); aiocb->ki_cancel = aio_poll_cancel; } From 60d311f9e6381d779d7d53371f87285698ecee24 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 8 Dec 2021 17:04:55 -0800 Subject: [PATCH 099/172] aio: fix use-after-free due to missing POLLFREE handling commit 50252e4b5e989ce64555c7aef7516bdefc2fea72 upstream. signalfd_poll() and binder_poll() are special in that they use a waitqueue whose lifetime is the current task, rather than the struct file as is normally the case. This is okay for blocking polls, since a blocking poll occurs within one task; however, non-blocking polls require another solution. This solution is for the queue to be cleared before it is freed, by sending a POLLFREE notification to all waiters. Unfortunately, only eventpoll handles POLLFREE. A second type of non-blocking poll, aio poll, was added in kernel v4.18, and it doesn't handle POLLFREE. This allows a use-after-free to occur if a signalfd or binder fd is polled with aio poll, and the waitqueue gets freed. Fix this by making aio poll handle POLLFREE. A patch by Ramji Jiyani (https://lore.kernel.org/r/20211027011834.2497484-1-ramjiyani@google.com) tried to do this by making aio_poll_wake() always complete the request inline if POLLFREE is seen. However, that solution had two bugs. First, it introduced a deadlock, as it unconditionally locked the aio context while holding the waitqueue lock, which inverts the normal locking order. Second, it didn't consider that POLLFREE notifications are missed while the request has been temporarily de-queued. The second problem was solved by my previous patch. This patch then properly fixes the use-after-free by handling POLLFREE in a deadlock-free way. It does this by taking advantage of the fact that freeing of the waitqueue is RCU-delayed, similar to what eventpoll does. Fixes: 2c14fa838cbe ("aio: implement IOCB_CMD_POLL") Cc: # v4.18+ Link: https://lore.kernel.org/r/20211209010455.42744-6-ebiggers@kernel.org Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- fs/aio.c | 137 ++++++++++++++++++++++++-------- include/uapi/asm-generic/poll.h | 2 +- 2 files changed, 107 insertions(+), 32 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index ab6b3e090d26..f7d47c9ff6de 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1621,6 +1621,51 @@ static void aio_poll_put_work(struct work_struct *work) iocb_put(iocb); } +/* + * Safely lock the waitqueue which the request is on, synchronizing with the + * case where the ->poll() provider decides to free its waitqueue early. + * + * Returns true on success, meaning that req->head->lock was locked, req->wait + * is on req->head, and an RCU read lock was taken. Returns false if the + * request was already removed from its waitqueue (which might no longer exist). + */ +static bool poll_iocb_lock_wq(struct poll_iocb *req) +{ + wait_queue_head_t *head; + + /* + * While we hold the waitqueue lock and the waitqueue is nonempty, + * wake_up_pollfree() will wait for us. However, taking the waitqueue + * lock in the first place can race with the waitqueue being freed. + * + * We solve this as eventpoll does: by taking advantage of the fact that + * all users of wake_up_pollfree() will RCU-delay the actual free. If + * we enter rcu_read_lock() and see that the pointer to the queue is + * non-NULL, we can then lock it without the memory being freed out from + * under us, then check whether the request is still on the queue. + * + * Keep holding rcu_read_lock() as long as we hold the queue lock, in + * case the caller deletes the entry from the queue, leaving it empty. + * In that case, only RCU prevents the queue memory from being freed. + */ + rcu_read_lock(); + head = smp_load_acquire(&req->head); + if (head) { + spin_lock(&head->lock); + if (!list_empty(&req->wait.entry)) + return true; + spin_unlock(&head->lock); + } + rcu_read_unlock(); + return false; +} + +static void poll_iocb_unlock_wq(struct poll_iocb *req) +{ + spin_unlock(&req->head->lock); + rcu_read_unlock(); +} + static void aio_poll_complete_work(struct work_struct *work) { struct poll_iocb *req = container_of(work, struct poll_iocb, work); @@ -1640,24 +1685,25 @@ static void aio_poll_complete_work(struct work_struct *work) * avoid further branches in the fast path. */ spin_lock_irq(&ctx->ctx_lock); - spin_lock(&req->head->lock); - if (!mask && !READ_ONCE(req->cancelled)) { - /* - * The request isn't actually ready to be completed yet. - * Reschedule completion if another wakeup came in. - */ - if (req->work_need_resched) { - schedule_work(&req->work); - req->work_need_resched = false; - } else { - req->work_scheduled = false; + if (poll_iocb_lock_wq(req)) { + if (!mask && !READ_ONCE(req->cancelled)) { + /* + * The request isn't actually ready to be completed yet. + * Reschedule completion if another wakeup came in. + */ + if (req->work_need_resched) { + schedule_work(&req->work); + req->work_need_resched = false; + } else { + req->work_scheduled = false; + } + poll_iocb_unlock_wq(req); + spin_unlock_irq(&ctx->ctx_lock); + return; } - spin_unlock(&req->head->lock); - spin_unlock_irq(&ctx->ctx_lock); - return; - } - list_del_init(&req->wait.entry); - spin_unlock(&req->head->lock); + list_del_init(&req->wait.entry); + poll_iocb_unlock_wq(req); + } /* else, POLLFREE has freed the waitqueue, so we must complete */ list_del_init(&iocb->ki_list); iocb->ki_res.res = mangle_poll(mask); spin_unlock_irq(&ctx->ctx_lock); @@ -1671,13 +1717,14 @@ static int aio_poll_cancel(struct kiocb *iocb) struct aio_kiocb *aiocb = container_of(iocb, struct aio_kiocb, rw); struct poll_iocb *req = &aiocb->poll; - spin_lock(&req->head->lock); - WRITE_ONCE(req->cancelled, true); - if (!req->work_scheduled) { - schedule_work(&aiocb->poll.work); - req->work_scheduled = true; - } - spin_unlock(&req->head->lock); + if (poll_iocb_lock_wq(req)) { + WRITE_ONCE(req->cancelled, true); + if (!req->work_scheduled) { + schedule_work(&aiocb->poll.work); + req->work_scheduled = true; + } + poll_iocb_unlock_wq(req); + } /* else, the request was force-cancelled by POLLFREE already */ return 0; } @@ -1729,7 +1776,8 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, * * Don't remove the request from the waitqueue here, as it might * not actually be complete yet (we won't know until vfs_poll() - * is called), and we must not miss any wakeups. + * is called), and we must not miss any wakeups. POLLFREE is an + * exception to this; see below. */ if (req->work_scheduled) { req->work_need_resched = true; @@ -1737,6 +1785,28 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, schedule_work(&req->work); req->work_scheduled = true; } + + /* + * If the waitqueue is being freed early but we can't complete + * the request inline, we have to tear down the request as best + * we can. That means immediately removing the request from its + * waitqueue and preventing all further accesses to the + * waitqueue via the request. We also need to schedule the + * completion work (done above). Also mark the request as + * cancelled, to potentially skip an unneeded call to ->poll(). + */ + if (mask & POLLFREE) { + WRITE_ONCE(req->cancelled, true); + list_del_init(&req->wait.entry); + + /* + * Careful: this *must* be the last step, since as soon + * as req->head is NULL'ed out, the request can be + * completed and freed, since aio_poll_complete_work() + * will no longer need to take the waitqueue lock. + */ + smp_store_release(&req->head, NULL); + } } return 1; } @@ -1744,6 +1814,7 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, struct aio_poll_table { struct poll_table_struct pt; struct aio_kiocb *iocb; + bool queued; int error; }; @@ -1754,11 +1825,12 @@ aio_poll_queue_proc(struct file *file, struct wait_queue_head *head, struct aio_poll_table *pt = container_of(p, struct aio_poll_table, pt); /* multiple wait queues per file are not supported */ - if (unlikely(pt->iocb->poll.head)) { + if (unlikely(pt->queued)) { pt->error = -EINVAL; return; } + pt->queued = true; pt->error = 0; pt->iocb->poll.head = head; add_wait_queue(head, &pt->iocb->poll.wait); @@ -1790,6 +1862,7 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) apt.pt._qproc = aio_poll_queue_proc; apt.pt._key = req->events; apt.iocb = aiocb; + apt.queued = false; apt.error = -EINVAL; /* same as no support for IOCB_CMD_POLL */ /* initialized the list so that we can do list_empty checks */ @@ -1798,9 +1871,10 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) mask = vfs_poll(req->file, &apt.pt) & req->events; spin_lock_irq(&ctx->ctx_lock); - if (likely(req->head)) { - spin_lock(&req->head->lock); - if (list_empty(&req->wait.entry) || req->work_scheduled) { + if (likely(apt.queued)) { + bool on_queue = poll_iocb_lock_wq(req); + + if (!on_queue || req->work_scheduled) { /* * aio_poll_wake() already either scheduled the async * completion work, or completed the request inline. @@ -1816,7 +1890,7 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) } else if (cancel) { /* Cancel if possible (may be too late though). */ WRITE_ONCE(req->cancelled, true); - } else if (!list_empty(&req->wait.entry)) { + } else if (on_queue) { /* * Actually waiting for an event, so add the request to * active_reqs so that it can be cancelled if needed. @@ -1824,7 +1898,8 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb) list_add_tail(&aiocb->ki_list, &ctx->active_reqs); aiocb->ki_cancel = aio_poll_cancel; } - spin_unlock(&req->head->lock); + if (on_queue) + poll_iocb_unlock_wq(req); } if (mask) { /* no async, we'd stolen it */ aiocb->ki_res.res = mangle_poll(mask); diff --git a/include/uapi/asm-generic/poll.h b/include/uapi/asm-generic/poll.h index 41b509f410bf..f9c520ce4bf4 100644 --- a/include/uapi/asm-generic/poll.h +++ b/include/uapi/asm-generic/poll.h @@ -29,7 +29,7 @@ #define POLLRDHUP 0x2000 #endif -#define POLLFREE (__force __poll_t)0x4000 /* currently only for epoll */ +#define POLLFREE (__force __poll_t)0x4000 #define POLL_BUSY_LOOP (__force __poll_t)0x8000 From 23a5f9797d6cad693d990486836311d750c4407f Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Tue, 7 Dec 2021 17:17:29 -0500 Subject: [PATCH 100/172] tracefs: Set all files to the same group ownership as the mount option commit 48b27b6b5191e2e1f2798cd80877b6e4ef47c351 upstream. As people have been asking to allow non-root processes to have access to the tracefs directory, it was considered best to only allow groups to have access to the directory, where it is easier to just set the tracefs file system to a specific group (as other would be too dangerous), and that way the admins could pick which processes would have access to tracefs. Unfortunately, this broke tooling on Android that expected the other bit to be set. For some special cases, for non-root tools to trace the system, tracefs would be mounted and change the permissions of the top level directory which gave access to all running tasks permission to the tracing directory. Even though this would be dangerous to do in a production environment, for testing environments this can be useful. Now with the new changes to not allow other (which is still the proper thing to do), it breaks the testing tooling. Now more code needs to be loaded on the system to change ownership of the tracing directory. The real solution is to have tracefs honor the gid=xxx option when mounting. That is, (tracing group tracing has value 1003) mount -t tracefs -o gid=1003 tracefs /sys/kernel/tracing should have it that all files in the tracing directory should be of the given group. Copy the logic from d_walk() from dcache.c and simplify it for the mount case of tracefs if gid is set. All the files in tracefs will be walked and their group will be set to the value passed in. Link: https://lkml.kernel.org/r/20211207171729.2a54e1b3@gandalf.local.home Cc: Ingo Molnar Cc: Kees Cook Cc: Andrew Morton Cc: Linus Torvalds Cc: linux-fsdevel@vger.kernel.org Cc: Al Viro Cc: Greg Kroah-Hartman Reported-by: Kalesh Singh Reported-by: Yabin Cui Fixes: 49d67e445742 ("tracefs: Have tracefs directories not set OTH permission bits by default") Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Greg Kroah-Hartman --- fs/tracefs/inode.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c index 06cf0534cc60..3616839c5c4b 100644 --- a/fs/tracefs/inode.c +++ b/fs/tracefs/inode.c @@ -161,6 +161,77 @@ struct tracefs_fs_info { struct tracefs_mount_opts mount_opts; }; +static void change_gid(struct dentry *dentry, kgid_t gid) +{ + if (!dentry->d_inode) + return; + dentry->d_inode->i_gid = gid; +} + +/* + * Taken from d_walk, but without he need for handling renames. + * Nothing can be renamed while walking the list, as tracefs + * does not support renames. This is only called when mounting + * or remounting the file system, to set all the files to + * the given gid. + */ +static void set_gid(struct dentry *parent, kgid_t gid) +{ + struct dentry *this_parent; + struct list_head *next; + + this_parent = parent; + spin_lock(&this_parent->d_lock); + + change_gid(this_parent, gid); +repeat: + next = this_parent->d_subdirs.next; +resume: + while (next != &this_parent->d_subdirs) { + struct list_head *tmp = next; + struct dentry *dentry = list_entry(tmp, struct dentry, d_child); + next = tmp->next; + + spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); + + change_gid(dentry, gid); + + if (!list_empty(&dentry->d_subdirs)) { + spin_unlock(&this_parent->d_lock); + spin_release(&dentry->d_lock.dep_map, _RET_IP_); + this_parent = dentry; + spin_acquire(&this_parent->d_lock.dep_map, 0, 1, _RET_IP_); + goto repeat; + } + spin_unlock(&dentry->d_lock); + } + /* + * All done at this level ... ascend and resume the search. + */ + rcu_read_lock(); +ascend: + if (this_parent != parent) { + struct dentry *child = this_parent; + this_parent = child->d_parent; + + spin_unlock(&child->d_lock); + spin_lock(&this_parent->d_lock); + + /* go into the first sibling still alive */ + do { + next = child->d_child.next; + if (next == &this_parent->d_subdirs) + goto ascend; + child = list_entry(next, struct dentry, d_child); + } while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED)); + rcu_read_unlock(); + goto resume; + } + rcu_read_unlock(); + spin_unlock(&this_parent->d_lock); + return; +} + static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts) { substring_t args[MAX_OPT_ARGS]; @@ -193,6 +264,7 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts) if (!gid_valid(gid)) return -EINVAL; opts->gid = gid; + set_gid(tracefs_mount->mnt_root, gid); break; case Opt_mode: if (match_octal(&args[0], &option)) From e3098ce15fece36ded5e0d298568209e38dbb014 Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Tue, 7 Dec 2021 17:21:44 +1300 Subject: [PATCH 101/172] i2c: mpc: Use atomic read and fix break condition commit a74c313aca266fab0d1d1a72becbb8b7b5286b6e upstream. Maxime points out that the polling code in mpc_i2c_isr should use the _atomic API because it is called in an irq context and that the behaviour of the MCF bit is that it is 1 when the byte transfer is complete. All of this means the original code was effectively a udelay(100). Fix this by using readb_poll_timeout_atomic() and removing the negation of the break condition. Fixes: 4a8ac5e45cda ("i2c: mpc: Poll for MCF") Reported-by: Maxime Bizon Signed-off-by: Chris Packham Tested-by: Maxime Bizon Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-mpc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index a6ea1eb1394e..53b8da6dbb23 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -636,7 +636,7 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id) status = readb(i2c->base + MPC_I2C_SR); if (status & CSR_MIF) { /* Wait up to 100us for transfer to properly complete */ - readb_poll_timeout(i2c->base + MPC_I2C_SR, status, !(status & CSR_MCF), 0, 100); + readb_poll_timeout_atomic(i2c->base + MPC_I2C_SR, status, status & CSR_MCF, 0, 100); writeb(0, i2c->base + MPC_I2C_SR); mpc_i2c_do_intr(i2c, status); return IRQ_HANDLED; From d429b302c184a0018cadce49a50e099ffaf1dcb7 Mon Sep 17 00:00:00 2001 From: Davidlohr Bueso Date: Fri, 10 Dec 2021 10:20:58 -0800 Subject: [PATCH 102/172] block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2) commit e6a59aac8a8713f335a37d762db0dbe80e7f6d38 upstream. do_each_pid_thread(PIDTYPE_PGID) can race with a concurrent change_pid(PIDTYPE_PGID) that can move the task from one hlist to another while iterating. Serialize ioprio_get to take the tasklist_lock in this case, just like it's set counterpart. Fixes: d69b78ba1de (ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()) Acked-by: Oleg Nesterov Signed-off-by: Davidlohr Bueso Link: https://lore.kernel.org/r/20211210182058.43417-1-dave@stgolabs.net Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- block/ioprio.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/block/ioprio.c b/block/ioprio.c index 313c14a70bbd..6f01d35a5145 100644 --- a/block/ioprio.c +++ b/block/ioprio.c @@ -220,6 +220,7 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) pgrp = task_pgrp(current); else pgrp = find_vpid(who); + read_lock(&tasklist_lock); do_each_pid_thread(pgrp, PIDTYPE_PGID, p) { tmpio = get_task_ioprio(p); if (tmpio < 0) @@ -229,6 +230,8 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) else ret = ioprio_best(ret, tmpio); } while_each_pid_thread(pgrp, PIDTYPE_PGID, p); + read_unlock(&tasklist_lock); + break; case IOPRIO_WHO_USER: uid = make_kuid(current_user_ns(), who); From f8dccc1bdea7e21b5ec06c957aef8831c772661c Mon Sep 17 00:00:00 2001 From: Igor Pylypiv Date: Tue, 30 Nov 2021 20:16:27 -0800 Subject: [PATCH 103/172] scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc() commit 653926205741add87a6cf452e21950eebc6ac10b upstream. Calling scsi_remove_host() before scsi_add_host() results in a crash: BUG: kernel NULL pointer dereference, address: 0000000000000108 RIP: 0010:device_del+0x63/0x440 Call Trace: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host() has not been called yet at that point in time. Function call tree: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host() Link: https://lore.kernel.org/r/20211201041627.1592487-1-ipylypiv@google.com Fixes: 05c6c029a44d ("scsi: pm80xx: Increase number of supported queues") Reviewed-by: Vishakha Channapattan Acked-by: Jack Wang Signed-off-by: Igor Pylypiv Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/pm8001/pm8001_init.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 729d8252028e..a25a34535b7a 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -281,12 +281,12 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, if (rc) { pm8001_dbg(pm8001_ha, FAIL, "pm8001_setup_irq failed [ret: %d]\n", rc); - goto err_out_shost; + goto err_out; } /* Request Interrupt */ rc = pm8001_request_irq(pm8001_ha); if (rc) - goto err_out_shost; + goto err_out; count = pm8001_ha->max_q_num; /* Queues are chosen based on the number of cores/msix availability */ @@ -422,8 +422,6 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha, pm8001_tag_init(pm8001_ha); return 0; -err_out_shost: - scsi_remove_host(pm8001_ha->shost); err_out_nodev: for (i = 0; i < pm8001_ha->max_memcnt; i++) { if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) { From ebacb44cb2042b90951140eda806bedad23ef554 Mon Sep 17 00:00:00 2001 From: Shin'ichiro Kawasaki Date: Tue, 7 Dec 2021 10:06:38 +0900 Subject: [PATCH 104/172] scsi: scsi_debug: Fix buffer size of REPORT ZONES command commit 7db0e0c8190a086ef92ce5bb960836cde49540aa upstream. According to ZBC and SPC specifications, the unit of ALLOCATION LENGTH field of REPORT ZONES command is byte. However, current scsi_debug implementation handles it as number of zones to calculate buffer size to report zones. When the ALLOCATION LENGTH has a large number, this results in too large buffer size and causes memory allocation failure. Fix the failure by handling ALLOCATION LENGTH as byte unit. Link: https://lore.kernel.org/r/20211207010638.124280-1-shinichiro.kawasaki@wdc.com Fixes: f0d1cf9378bd ("scsi: scsi_debug: Add ZBC zone commands") Reviewed-by: Damien Le Moal Signed-off-by: Shin'ichiro Kawasaki Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/scsi_debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 1b1a63a46781..84d27938a3a6 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -4334,7 +4334,7 @@ static int resp_report_zones(struct scsi_cmnd *scp, rep_max_zones = min((alloc_len - 64) >> ilog2(RZONES_DESC_HD), max_zones); - arr = kcalloc(RZONES_DESC_HD, alloc_len, GFP_ATOMIC); + arr = kzalloc(alloc_len, GFP_ATOMIC); if (!arr) { mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC, INSUFF_RES_ASCQ); From 069a849819b36b1425f9530207eb3d4745b4b57e Mon Sep 17 00:00:00 2001 From: Geraldo Nascimento Date: Sat, 4 Dec 2021 15:52:24 -0300 Subject: [PATCH 105/172] ALSA: usb-audio: Reorder snd_djm_devices[] entries commit fb1af5bea4670c835e42fc0c14c49d3499468774 upstream. Olivia Mackintosh has posted to alsa-devel reporting that there's a potential bug that could break mixer quirks for Pioneer devices introduced by 6d27788160362a7ee6c0d317636fe4b1ddbe59a7 "ALSA: usb-audio: Add support for the Pioneer DJM 750MK2 Mixer/Soundcard". This happened because the DJM 750 MK2 was added last to the Pioneer DJM device table index and defined as 0x4 but was added to snd_djm_devices[] just after the DJM 750 (MK1) entry instead of last, after the DJM 900 NXS2. This escaped review. To prevent that from ever happening again, Takashi Iwai suggested to use C99 array designators in snd_djm_devices[] instead of simply reordering the entries. Fixes: 6d2778816036 ("ALSA: usb-audio: Add support for the Pioneer DJM 750MK2") Reported-by: Olivia Mackintosh Suggested-by: Takashi Iwai Signed-off-by: Geraldo Nascimento Link: https://lore.kernel.org/r/Yau46FDzoql0SNnW@geday Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/usb/mixer_quirks.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index d489c1de3bae..823b6b8de942 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -3016,11 +3016,11 @@ static const struct snd_djm_ctl snd_djm_ctls_750mk2[] = { static const struct snd_djm_device snd_djm_devices[] = { - SND_DJM_DEVICE(250mk2), - SND_DJM_DEVICE(750), - SND_DJM_DEVICE(750mk2), - SND_DJM_DEVICE(850), - SND_DJM_DEVICE(900nxs2) + [SND_DJM_250MK2_IDX] = SND_DJM_DEVICE(250mk2), + [SND_DJM_750_IDX] = SND_DJM_DEVICE(750), + [SND_DJM_850_IDX] = SND_DJM_DEVICE(850), + [SND_DJM_900NXS2_IDX] = SND_DJM_DEVICE(900nxs2), + [SND_DJM_750MK2_IDX] = SND_DJM_DEVICE(750mk2), }; From a3f0e9b1d6cd02b532cde6205c15148e57d649e2 Mon Sep 17 00:00:00 2001 From: Manish Chopra Date: Fri, 3 Dec 2021 09:44:13 -0800 Subject: [PATCH 106/172] qede: validate non LSO skb length commit 8e227b198a55859bf790dc7f4b1e30c0859c6756 upstream. Although it is unlikely that stack could transmit a non LSO skb with length > MTU, however in some cases or environment such occurrences actually resulted into firmware asserts due to packet length being greater than the max supported by the device (~9700B). This patch adds the safeguard for such odd cases to avoid firmware asserts. v2: Added "Fixes" tag with one of the initial driver commit which enabled the TX traffic actually (as this was probably day1 issue which was discovered recently by some customer environment) Fixes: a2ec6172d29c ("qede: Add support for link") Signed-off-by: Manish Chopra Signed-off-by: Alok Prasad Signed-off-by: Prabhakar Kushwaha Signed-off-by: Ariel Elior Link: https://lore.kernel.org/r/20211203174413.13090-1-manishc@marvell.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/qlogic/qede/qede_fp.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c index 065e9004598e..999abcfe3310 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_fp.c +++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c @@ -1643,6 +1643,13 @@ netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev) data_split = true; } } else { + if (unlikely(skb->len > ETH_TX_MAX_NON_LSO_PKT_LEN)) { + DP_ERR(edev, "Unexpected non LSO skb length = 0x%x\n", skb->len); + qede_free_failed_tx_pkt(txq, first_bd, 0, false); + qede_update_tx_producer(txq); + return NETDEV_TX_OK; + } + val |= ((skb->len & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK) << ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT); } From e9362a21147afbfa9274a6888605388c6b06006b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 3 Dec 2021 17:19:47 +0100 Subject: [PATCH 107/172] PM: runtime: Fix pm_runtime_active() kerneldoc comment commit 444dd878e85fb33fcfb2682cfdab4c236f33ea3e upstream. The kerneldoc comment of pm_runtime_active() does not reflect the behavior of the function, so update it accordingly. Fixes: 403d2d116ec0 ("PM: runtime: Add kerneldoc comments to multiple helpers") Signed-off-by: Rafael J. Wysocki Reviewed-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- include/linux/pm_runtime.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 222da43b7096..eddd66d426ca 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -129,7 +129,7 @@ static inline bool pm_runtime_suspended(struct device *dev) * pm_runtime_active - Check whether or not a device is runtime-active. * @dev: Target device. * - * Return %true if runtime PM is enabled for @dev and its runtime PM status is + * Return %true if runtime PM is disabled for @dev or its runtime PM status is * %RPM_ACTIVE, or %false otherwise. * * Note that the return value of this function can only be trusted if it is From cdb5a0d0e0075f9ede20f1aebd0b3f92ec743db4 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 17 Nov 2021 17:04:52 -0800 Subject: [PATCH 108/172] ASoC: rt5682: Fix crash due to out of scope stack vars commit 4999d703c0e66f9f196b6edc0b8fdeca8846b8b6 upstream. Move the declaration of temporary arrays to somewhere that won't go out of scope before the devm_clk_hw_register() call, lest we be at the whim of the compiler for whether those stack variables get overwritten. Fixes a crash seen with gcc version 11.2.1 20210728 (Red Hat 11.2.1-1) Fixes: edbd24ea1e5c ("ASoC: rt5682: Drop usage of __clk_get_name()") Signed-off-by: Rob Clark Reviewed-by: Stephen Boyd Link: https://lore.kernel.org/r/20211118010453.843286-1-robdclark@gmail.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/rt5682.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c index d550c0705c28..5ac2b1444694 100644 --- a/sound/soc/codecs/rt5682.c +++ b/sound/soc/codecs/rt5682.c @@ -2840,6 +2840,8 @@ static int rt5682_register_dai_clks(struct snd_soc_component *component) for (i = 0; i < RT5682_DAI_NUM_CLKS; ++i) { struct clk_init_data init = { }; + struct clk_parent_data parent_data; + const struct clk_hw *parent; dai_clk_hw = &rt5682->dai_clks_hw[i]; @@ -2847,17 +2849,17 @@ static int rt5682_register_dai_clks(struct snd_soc_component *component) case RT5682_DAI_WCLK_IDX: /* Make MCLK the parent of WCLK */ if (rt5682->mclk) { - init.parent_data = &(struct clk_parent_data){ + parent_data = (struct clk_parent_data){ .fw_name = "mclk", }; + init.parent_data = &parent_data; init.num_parents = 1; } break; case RT5682_DAI_BCLK_IDX: /* Make WCLK the parent of BCLK */ - init.parent_hws = &(const struct clk_hw *){ - &rt5682->dai_clks_hw[RT5682_DAI_WCLK_IDX] - }; + parent = &rt5682->dai_clks_hw[RT5682_DAI_WCLK_IDX]; + init.parent_hws = &parent; init.num_parents = 1; break; default: From e1e22179376f14ef50126b2537af108ee493f840 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 30 Nov 2021 16:31:10 +0000 Subject: [PATCH 109/172] ASoC: qdsp6: q6routing: Fix return value from msm_routing_put_audio_mixer commit 4739d88ad8e1900f809f8a5c98f3c1b65bf76220 upstream. msm_routing_put_audio_mixer() can return incorrect value in various scenarios. scenario 1: amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1 amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0 return value is 0 instead of 1 eventhough value was changed scenario 2: amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1 amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1 return value is 1 instead of 0 eventhough the value was not changed scenario 3: amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0 return value is 1 instead of 0 eventhough the value was not changed Fix this by adding checks, so that change notifications are sent correctly. Fixes: e3a33673e845 ("ASoC: qdsp6: q6routing: Add q6routing driver") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20211130163110.5628-1-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/qcom/qdsp6/q6routing.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c index 243b8179e59d..18c90bb4922b 100644 --- a/sound/soc/qcom/qdsp6/q6routing.c +++ b/sound/soc/qcom/qdsp6/q6routing.c @@ -492,14 +492,16 @@ static int msm_routing_put_audio_mixer(struct snd_kcontrol *kcontrol, struct session_data *session = &data->sessions[session_id]; if (ucontrol->value.integer.value[0]) { + if (session->port_id == be_id) + return 0; + session->port_id = be_id; snd_soc_dapm_mixer_update_power(dapm, kcontrol, 1, update); } else { - if (session->port_id == be_id) { - session->port_id = -1; + if (session->port_id == -1 || session->port_id != be_id) return 0; - } + session->port_id = -1; snd_soc_dapm_mixer_update_power(dapm, kcontrol, 0, update); } From 71272640d459c9efe2380d43d4d899782bb225a0 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 30 Nov 2021 16:05:07 +0000 Subject: [PATCH 110/172] ASoC: codecs: wsa881x: fix return values from kcontrol put commit 3fc27e9a1f619b50700f020e6cd270c1b74755f0 upstream. wsa881x_set_port() and wsa881x_put_pa_gain() currently returns zero eventhough it changes the value. Fix this, so that change notifications are sent correctly. Fixes: a0aab9e1404a ("ASoC: codecs: add wsa881x amplifier support") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20211130160507.22180-5-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/wsa881x.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c index 2da4a5fa7a18..564b78f3cdd0 100644 --- a/sound/soc/codecs/wsa881x.c +++ b/sound/soc/codecs/wsa881x.c @@ -772,7 +772,8 @@ static int wsa881x_put_pa_gain(struct snd_kcontrol *kc, usleep_range(1000, 1010); } - return 0; + + return 1; } static int wsa881x_get_port(struct snd_kcontrol *kcontrol, @@ -816,15 +817,22 @@ static int wsa881x_set_port(struct snd_kcontrol *kcontrol, (struct soc_mixer_control *)kcontrol->private_value; int portidx = mixer->reg; - if (ucontrol->value.integer.value[0]) + if (ucontrol->value.integer.value[0]) { + if (data->port_enable[portidx]) + return 0; + data->port_enable[portidx] = true; - else + } else { + if (!data->port_enable[portidx]) + return 0; + data->port_enable[portidx] = false; + } if (portidx == WSA881X_PORT_BOOST) /* Boost Switch */ wsa881x_boost_ctrl(comp, data->port_enable[portidx]); - return 0; + return 1; } static const char * const smart_boost_lvl_text[] = { From 339ffb5b56005582aacc860524d2d208604049d1 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 30 Nov 2021 16:05:04 +0000 Subject: [PATCH 111/172] ASoC: codecs: wcd934x: handle channel mappping list correctly commit 23ba28616d3063bd4c4953598ed5e439ca891101 upstream. Currently each channel is added as list to dai channel list, however there is danger of adding same channel to multiple dai channel list which endups corrupting the other list where its already added. This patch ensures that the channel is actually free before adding to the dai channel list and also ensures that the channel is on the list before deleting it. This check was missing previously, and we did not hit this issue as we were testing very simple usecases with sequence of amixer commands. Fixes: a70d9245759a ("ASoC: wcd934x: add capture dapm widgets") Fixes: dd9eb19b5673 ("ASoC: wcd934x: add playback dapm widgets") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20211130160507.22180-2-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/wcd934x.c | 119 +++++++++++++++++++++++++++---------- 1 file changed, 88 insertions(+), 31 deletions(-) diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c index 4f568abd59e2..eb4e2f2a24ae 100644 --- a/sound/soc/codecs/wcd934x.c +++ b/sound/soc/codecs/wcd934x.c @@ -3326,6 +3326,31 @@ static int slim_rx_mux_get(struct snd_kcontrol *kc, return 0; } +static int slim_rx_mux_to_dai_id(int mux) +{ + int aif_id; + + switch (mux) { + case 1: + aif_id = AIF1_PB; + break; + case 2: + aif_id = AIF2_PB; + break; + case 3: + aif_id = AIF3_PB; + break; + case 4: + aif_id = AIF4_PB; + break; + default: + aif_id = -1; + break; + } + + return aif_id; +} + static int slim_rx_mux_put(struct snd_kcontrol *kc, struct snd_ctl_elem_value *ucontrol) { @@ -3333,43 +3358,59 @@ static int slim_rx_mux_put(struct snd_kcontrol *kc, struct wcd934x_codec *wcd = dev_get_drvdata(w->dapm->dev); struct soc_enum *e = (struct soc_enum *)kc->private_value; struct snd_soc_dapm_update *update = NULL; + struct wcd934x_slim_ch *ch, *c; u32 port_id = w->shift; + bool found = false; + int mux_idx; + int prev_mux_idx = wcd->rx_port_value[port_id]; + int aif_id; - if (wcd->rx_port_value[port_id] == ucontrol->value.enumerated.item[0]) + mux_idx = ucontrol->value.enumerated.item[0]; + + if (mux_idx == prev_mux_idx) return 0; - wcd->rx_port_value[port_id] = ucontrol->value.enumerated.item[0]; - - switch (wcd->rx_port_value[port_id]) { + switch(mux_idx) { case 0: - list_del_init(&wcd->rx_chs[port_id].list); + aif_id = slim_rx_mux_to_dai_id(prev_mux_idx); + if (aif_id < 0) + return 0; + + list_for_each_entry_safe(ch, c, &wcd->dai[aif_id].slim_ch_list, list) { + if (ch->port == port_id + WCD934X_RX_START) { + found = true; + list_del_init(&ch->list); + break; + } + } + if (!found) + return 0; + break; - case 1: - list_add_tail(&wcd->rx_chs[port_id].list, - &wcd->dai[AIF1_PB].slim_ch_list); - break; - case 2: - list_add_tail(&wcd->rx_chs[port_id].list, - &wcd->dai[AIF2_PB].slim_ch_list); - break; - case 3: - list_add_tail(&wcd->rx_chs[port_id].list, - &wcd->dai[AIF3_PB].slim_ch_list); - break; - case 4: - list_add_tail(&wcd->rx_chs[port_id].list, - &wcd->dai[AIF4_PB].slim_ch_list); + case 1 ... 4: + aif_id = slim_rx_mux_to_dai_id(mux_idx); + if (aif_id < 0) + return 0; + + if (list_empty(&wcd->rx_chs[port_id].list)) { + list_add_tail(&wcd->rx_chs[port_id].list, + &wcd->dai[aif_id].slim_ch_list); + } else { + dev_err(wcd->dev ,"SLIM_RX%d PORT is busy\n", port_id); + return 0; + } break; + default: - dev_err(wcd->dev, "Unknown AIF %d\n", - wcd->rx_port_value[port_id]); + dev_err(wcd->dev, "Unknown AIF %d\n", mux_idx); goto err; } + wcd->rx_port_value[port_id] = mux_idx; snd_soc_dapm_mux_update_power(w->dapm, kc, wcd->rx_port_value[port_id], e, update); - return 0; + return 1; err: return -EINVAL; } @@ -3815,6 +3856,7 @@ static int slim_tx_mixer_put(struct snd_kcontrol *kc, struct soc_mixer_control *mixer = (struct soc_mixer_control *)kc->private_value; int enable = ucontrol->value.integer.value[0]; + struct wcd934x_slim_ch *ch, *c; int dai_id = widget->shift; int port_id = mixer->shift; @@ -3822,17 +3864,32 @@ static int slim_tx_mixer_put(struct snd_kcontrol *kc, if (enable == wcd->tx_port_value[port_id]) return 0; + if (enable) { + if (list_empty(&wcd->tx_chs[port_id].list)) { + list_add_tail(&wcd->tx_chs[port_id].list, + &wcd->dai[dai_id].slim_ch_list); + } else { + dev_err(wcd->dev ,"SLIM_TX%d PORT is busy\n", port_id); + return 0; + } + } else { + bool found = false; + + list_for_each_entry_safe(ch, c, &wcd->dai[dai_id].slim_ch_list, list) { + if (ch->port == port_id) { + found = true; + list_del_init(&wcd->tx_chs[port_id].list); + break; + } + } + if (!found) + return 0; + } + wcd->tx_port_value[port_id] = enable; - - if (enable) - list_add_tail(&wcd->tx_chs[port_id].list, - &wcd->dai[dai_id].slim_ch_list); - else - list_del_init(&wcd->tx_chs[port_id].list); - snd_soc_dapm_mixer_update_power(widget->dapm, kc, enable, update); - return 0; + return 1; } static const struct snd_kcontrol_new aif1_slim_cap_mixer[] = { From 9b6bf6fca018a54c964d8f668cf0032813c91b2c Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 30 Nov 2021 16:05:06 +0000 Subject: [PATCH 112/172] ASoC: codecs: wcd934x: return correct value from mixer put commit d9be0ff4796d1b6f5ee391c1b7e3653a43cedfab upstream. wcd934x_compander_set() currently returns zero eventhough it changes the value. Fix this, so that change notifications are sent correctly. Fixes: 1cde8b822332 ("ASoC: wcd934x: add basic controls") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20211130160507.22180-4-srinivas.kandagatla@linaro.org Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/wcd934x.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c index eb4e2f2a24ae..e63c6b723d76 100644 --- a/sound/soc/codecs/wcd934x.c +++ b/sound/soc/codecs/wcd934x.c @@ -3256,6 +3256,9 @@ static int wcd934x_compander_set(struct snd_kcontrol *kc, int value = ucontrol->value.integer.value[0]; int sel; + if (wcd->comp_enabled[comp] == value) + return 0; + wcd->comp_enabled[comp] = value; sel = value ? WCD934X_HPH_GAIN_SRC_SEL_COMPANDER : WCD934X_HPH_GAIN_SRC_SEL_REGISTER; @@ -3279,10 +3282,10 @@ static int wcd934x_compander_set(struct snd_kcontrol *kc, case COMPANDER_8: break; default: - break; + return 0; } - return 0; + return 1; } static int wcd934x_rx_hph_mode_get(struct snd_kcontrol *kc, From 207f5ea62a9f80b7e57dada256fb00c5721864a8 Mon Sep 17 00:00:00 2001 From: Yangyang Li Date: Tue, 23 Nov 2021 16:48:09 +0800 Subject: [PATCH 113/172] RDMA/hns: Do not halt commands during reset until later commit 52414e27d6b568120b087d1fbafbb4482b0ccaab upstream. is_reset is used to indicate whether the hardware starts to reset. When hns_roce_hw_v2_reset_notify_down() is called, the hardware has not yet started to reset. If is_reset is set at this time, all mailbox operations of resource destroy actions will be intercepted by driver. When the driver cleans up resources, but the hardware is still accessed, the following errors will appear: arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000350100000010 arm-smmu-v3 arm-smmu-v3.2.auto: 0x000002088000003f arm-smmu-v3 arm-smmu-v3.2.auto: 0x00000000a50e0800 arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000350100000010 arm-smmu-v3 arm-smmu-v3.2.auto: 0x000002088000043e arm-smmu-v3 arm-smmu-v3.2.auto: 0x00000000a50a0800 arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000350100000010 arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000020880000436 arm-smmu-v3 arm-smmu-v3.2.auto: 0x00000000a50a0880 arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000350100000010 arm-smmu-v3 arm-smmu-v3.2.auto: 0x000002088000043a arm-smmu-v3 arm-smmu-v3.2.auto: 0x00000000a50e0840 hns3 0000:35:00.0: INT status: CMDQ(0x0) HW errors(0x0) other(0x0) arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 hns3 0000:35:00.0: received unknown or unhandled event of vector0 arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000350100000010 {34}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 7 is_reset will be set correctly in check_aedev_reset_status(), so the setting in hns_roce_hw_v2_reset_notify_down() should be deleted. Fixes: 726be12f5ca0 ("RDMA/hns: Set reset flag when hw resetting") Link: https://lore.kernel.org/r/20211123084809.37318-1-liangwenpeng@huawei.com Signed-off-by: Yangyang Li Signed-off-by: Wenpeng Liang Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index a9c6ffef9640..4840ecb1c3ec 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -6397,10 +6397,8 @@ static int hns_roce_hw_v2_reset_notify_down(struct hnae3_handle *handle) if (!hr_dev) return 0; - hr_dev->is_reset = true; hr_dev->active = false; hr_dev->dis_db = true; - hr_dev->state = HNS_ROCE_DEVICE_STATE_RST_DOWN; return 0; From be7c5d58108b39df5bf8f6adffe49e5ce99fce71 Mon Sep 17 00:00:00 2001 From: Yangyang Li Date: Tue, 23 Nov 2021 22:24:02 +0800 Subject: [PATCH 114/172] RDMA/hns: Do not destroy QP resources in the hw resetting phase commit b0969f83890bf8b47f5c8bd42539599b2b52fdeb upstream. When hns_roce_v2_destroy_qp() is called, the brief calling process of the driver is as follows: ...... hns_roce_v2_destroy_qp hns_roce_v2_qp_modify hns_roce_cmd_mbox hns_roce_qp_destroy If hns_roce_cmd_mbox() detects that the hardware is being reset during the execution of the hns_roce_cmd_mbox(), the driver will not be able to get the return value from the hardware (the firmware cannot respond to the driver's mailbox during the hardware reset phase). The driver needs to wait for the hardware reset to complete before continuing to execute hns_roce_qp_destroy(), otherwise it may happen that the driver releases the resources but the hardware is still accessing. In order to fix this problem, HNS RoCE needs to add a piece of code to wait for the hardware reset to complete. The original interface get_hw_reset_stat() is the instantaneous state of the hardware reset, which cannot accurately reflect whether the hardware reset is completed, so it needs to be replaced with the ae_dev_reset_cnt interface. The sign that the hardware reset is complete is that the return value of the ae_dev_reset_cnt interface is greater than the original value reset_cnt recorded by the driver. Fixes: 6a04aed6afae ("RDMA/hns: Fix the chip hanging caused by sending mailbox&CMQ during reset") Link: https://lore.kernel.org/r/20211123142402.26936-1-liangwenpeng@huawei.com Signed-off-by: Yangyang Li Signed-off-by: Wenpeng Liang Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 4840ecb1c3ec..51dd134952e7 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -1050,9 +1051,14 @@ static u32 hns_roce_v2_cmd_hw_resetting(struct hns_roce_dev *hr_dev, unsigned long instance_stage, unsigned long reset_stage) { +#define HW_RESET_TIMEOUT_US 1000000 +#define HW_RESET_SLEEP_US 1000 + struct hns_roce_v2_priv *priv = hr_dev->priv; struct hnae3_handle *handle = priv->handle; const struct hnae3_ae_ops *ops = handle->ae_algo->ops; + unsigned long val; + int ret; /* When hardware reset is detected, we should stop sending mailbox&cmq& * doorbell to hardware. If now in .init_instance() function, we should @@ -1064,7 +1070,11 @@ static u32 hns_roce_v2_cmd_hw_resetting(struct hns_roce_dev *hr_dev, * again. */ hr_dev->dis_db = true; - if (!ops->get_hw_reset_stat(handle)) + + ret = read_poll_timeout(ops->ae_dev_reset_cnt, val, + val > hr_dev->reset_cnt, HW_RESET_SLEEP_US, + HW_RESET_TIMEOUT_US, false, handle); + if (!ret) hr_dev->is_reset = true; if (!hr_dev->is_reset || reset_stage == HNS_ROCE_STATE_RST_INIT || From 1d044701bdbe3cfcee91d57f317fef520914ea7c Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Fri, 12 Nov 2021 18:14:40 +0100 Subject: [PATCH 115/172] hwmon: (dell-smm) Fix warning on /proc/i8k creation error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit dbd3e6eaf3d813939b28e8a66e29d81cdc836445 upstream. The removal function is called regardless of whether /proc/i8k was created successfully or not, the later causing a WARN() on module removal. Fix that by only registering the removal function if /proc/i8k was created successfully. Tested on a Inspiron 3505. Fixes: 039ae58503f3 ("hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k") Signed-off-by: Armin Wolf Acked-by: Pali Rohár Link: https://lore.kernel.org/r/20211112171440.59006-1-W_Armin@gmx.de Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/dell-smm-hwmon.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index 774c1b0715d9..47fce97996de 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -623,10 +623,9 @@ static void __init i8k_init_procfs(struct device *dev) { struct dell_smm_data *data = dev_get_drvdata(dev); - /* Register the proc entry */ - proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data); - - devm_add_action_or_reset(dev, i8k_exit_procfs, NULL); + /* Only register exit function if creation was successful */ + if (proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data)) + devm_add_action_or_reset(dev, i8k_exit_procfs, NULL); } #else From d259ae526fd9de192fa12ee327eee39cf57b9380 Mon Sep 17 00:00:00 2001 From: Miles Chen Date: Sun, 5 Sep 2021 07:54:18 +0800 Subject: [PATCH 116/172] clk: imx: use module_platform_driver commit eee377b8f44e7ac4f76bbf2440e5cbbc1d25c25f upstream. Replace builtin_platform_driver_probe with module_platform_driver_probe because CONFIG_CLK_IMX8QXP can be set to =m (kernel module). Fixes: e0d0d4d86c766 ("clk: imx8qxp: Support building i.MX8QXP clock driver as module") Cc: Fabio Estevam Cc: Stephen Boyd Signed-off-by: Miles Chen Link: https://lore.kernel.org/r/20210904235418.2442-1-miles.chen@mediatek.com Reviewed-by: Fabio Estevam Reviewed-by: Stephen Boyd Signed-off-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman --- drivers/clk/imx/clk-imx8qxp-lpcg.c | 2 +- drivers/clk/imx/clk-imx8qxp.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/imx/clk-imx8qxp-lpcg.c b/drivers/clk/imx/clk-imx8qxp-lpcg.c index d3e905cf867d..b23758083ce5 100644 --- a/drivers/clk/imx/clk-imx8qxp-lpcg.c +++ b/drivers/clk/imx/clk-imx8qxp-lpcg.c @@ -370,7 +370,7 @@ static struct platform_driver imx8qxp_lpcg_clk_driver = { .probe = imx8qxp_lpcg_clk_probe, }; -builtin_platform_driver(imx8qxp_lpcg_clk_driver); +module_platform_driver(imx8qxp_lpcg_clk_driver); MODULE_AUTHOR("Aisheng Dong "); MODULE_DESCRIPTION("NXP i.MX8QXP LPCG clock driver"); diff --git a/drivers/clk/imx/clk-imx8qxp.c b/drivers/clk/imx/clk-imx8qxp.c index c53a688d8ccc..40a2efb1329b 100644 --- a/drivers/clk/imx/clk-imx8qxp.c +++ b/drivers/clk/imx/clk-imx8qxp.c @@ -308,7 +308,7 @@ static struct platform_driver imx8qxp_clk_driver = { }, .probe = imx8qxp_clk_probe, }; -builtin_platform_driver(imx8qxp_clk_driver); +module_platform_driver(imx8qxp_clk_driver); MODULE_AUTHOR("Aisheng Dong "); MODULE_DESCRIPTION("NXP i.MX8QXP clock driver"); From 06ece58874c371235e3d43250e88572e2b9bd655 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Tue, 23 Nov 2021 08:25:08 -0800 Subject: [PATCH 117/172] clk: qcom: clk-alpha-pll: Don't reconfigure running Trion commit a1f0019c342bd83240b05be68c9888549dde7935 upstream. In the event that the bootloader has configured the Trion PLL as source for the display clocks, e.g. for the continuous splashscreen, then there will also be RCGs that are clocked by this instance. Reconfiguring, and in particular disabling the output of, the PLL will cause issues for these downstream RCGs and has been shown to prevent them from being re-parented. Follow downstream and skip configuration if it's determined that the PLL is already running. Fixes: 59128c20a6a9 ("clk: qcom: clk-alpha-pll: Add support for controlling Lucid PLLs") Signed-off-by: Bjorn Andersson Reviewed-by: Robert Foss Reviewed-by: Vinod Koul Link: https://lore.kernel.org/r/20211123162508.153711-1-bjorn.andersson@linaro.org Signed-off-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman --- drivers/clk/qcom/clk-alpha-pll.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index eaedcceb766f..8f65b9bdafce 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -1429,6 +1429,15 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_fabia_ops); void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, const struct alpha_pll_config *config) { + /* + * If the bootloader left the PLL enabled it's likely that there are + * RCGs that will lock up if we disable the PLL below. + */ + if (trion_pll_is_enabled(pll, regmap)) { + pr_debug("Trion PLL is already enabled, skipping configuration\n"); + return; + } + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL); clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); From 2132643b956f553f5abddc9bae20dae267b082e0 Mon Sep 17 00:00:00 2001 From: Karen Sornek Date: Fri, 14 May 2021 11:43:13 +0200 Subject: [PATCH 118/172] i40e: Fix failed opcode appearing if handling messages from VF commit 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 upstream. Fix failed operation code appearing if handling messages from VF. Implemented by waiting for VF appropriate state if request starts handle while VF reset. Without this patch the message handling request while VF is in a reset state ends with error -5 (I40E_ERR_PARAM). Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface") Signed-off-by: Grzegorz Szczurek Signed-off-by: Karen Sornek Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- .../ethernet/intel/i40e/i40e_virtchnl_pf.c | 70 +++++++++++++------ .../ethernet/intel/i40e/i40e_virtchnl_pf.h | 2 + 2 files changed, 50 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 80ae264c99ba..f651861442c2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -1948,6 +1948,32 @@ static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); } +/** + * i40e_sync_vf_state + * @vf: pointer to the VF info + * @state: VF state + * + * Called from a VF message to synchronize the service with a potential + * VF reset state + **/ +static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) +{ + int i; + + /* When handling some messages, it needs VF state to be set. + * It is possible that this flag is cleared during VF reset, + * so there is a need to wait until the end of the reset to + * handle the request message correctly. + */ + for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { + if (test_bit(state, &vf->vf_states)) + return true; + usleep_range(10000, 20000); + } + + return test_bit(state, &vf->vf_states); +} + /** * i40e_vc_get_version_msg * @vf: pointer to the VF info @@ -2008,7 +2034,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) size_t len = 0; int ret; - if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -2131,7 +2157,7 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) bool allmulti = false; bool alluni = false; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err_out; } @@ -2219,7 +2245,7 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) struct i40e_vsi *vsi; u16 num_qps_all = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2368,7 +2394,7 @@ static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2540,7 +2566,7 @@ static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2590,7 +2616,7 @@ static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) u8 cur_pairs = vf->num_queue_pairs; struct i40e_pf *pf = vf->pf; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) return -EINVAL; if (req_pairs > I40E_MAX_VF_QUEUES) { @@ -2635,7 +2661,7 @@ static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) memset(&stats, 0, sizeof(struct i40e_eth_stats)); - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2752,7 +2778,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) i40e_status ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { ret = I40E_ERR_PARAM; goto error_param; @@ -2824,7 +2850,7 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) i40e_status ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { ret = I40E_ERR_PARAM; goto error_param; @@ -2968,7 +2994,7 @@ static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; @@ -3088,9 +3114,9 @@ static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) struct i40e_vsi *vsi = NULL; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || - (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { + vrk->key_len != I40E_HKEY_ARRAY_SIZE) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3119,9 +3145,9 @@ static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; u16 i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || - (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { + vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3154,7 +3180,7 @@ static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int len = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3190,7 +3216,7 @@ static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) struct i40e_hw *hw = &pf->hw; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3215,7 +3241,7 @@ static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; struct i40e_vsi *vsi; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3241,7 +3267,7 @@ static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; struct i40e_vsi *vsi; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3468,7 +3494,7 @@ static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i, ret; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3599,7 +3625,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i, ret; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err_out; } @@ -3708,7 +3734,7 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; u64 speed = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3824,7 +3850,7 @@ static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h index 091e32c1bb46..49575a640a84 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h @@ -18,6 +18,8 @@ #define I40E_MAX_VF_PROMISC_FLAGS 3 +#define I40E_VF_STATE_WAIT_COUNT 20 + /* Various queue ctrls */ enum i40e_queue_ctrl { I40E_QUEUE_CTRL_UNKNOWN = 0, From fabfb7c18c8edb42da006da1237c89ab5f709d68 Mon Sep 17 00:00:00 2001 From: Mateusz Palczewski Date: Fri, 16 Jul 2021 11:33:56 +0200 Subject: [PATCH 119/172] i40e: Fix pre-set max number of queues for VF commit 8aa55ab422d9d0d825ebfb877702ed661e96e682 upstream. After setting pre-set combined to 16 queues and reserving 16 queues by tc qdisc, pre-set maximum combined queues returned to default value after VF reset being 4 and this generated errors during removing tc. Fixed by removing clear num_req_queues before reset VF. Fixes: e284fc280473 (i40e: Add and delete cloud filter) Signed-off-by: Grzegorz Szczurek Signed-off-by: Mateusz Palczewski Tested-by: Bindushree P Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index f651861442c2..2ea4deb8fc44 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -3823,11 +3823,6 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) /* set this flag only after making sure all inputs are sane */ vf->adq_enabled = true; - /* num_req_queues is set when user changes number of queues via ethtool - * and this causes issue for default VSI(which depends on this variable) - * when ADq is enabled, hence reset it. - */ - vf->num_req_queues = 0; /* reset the VF in order to allocate resources */ i40e_vc_reset_vf(vf, true); From ebc8909feecdccb36478ba165138dda2127eab2e Mon Sep 17 00:00:00 2001 From: Herve Codina Date: Fri, 19 Nov 2021 16:03:15 +0100 Subject: [PATCH 120/172] mtd: rawnand: fsmc: Take instruction delay into account commit a4ca0c439f2d5ce9a3dc118d882f9f03449864c8 upstream. The FSMC NAND controller should apply a delay after the instruction has been issued on the bus. The FSMC NAND controller driver did not handle this delay. Add this waiting delay in the FSMC NAND controller driver. Fixes: 4da712e70294 ("mtd: nand: fsmc: use ->exec_op()") Signed-off-by: Herve Codina Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-4-herve.codina@bootlin.com Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/raw/fsmc_nand.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c index 658f0cbe7ce8..0a6c9ef0ea8b 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -15,6 +15,7 @@ #include #include +#include #include #include #include @@ -664,6 +665,9 @@ static int fsmc_exec_op(struct nand_chip *chip, const struct nand_operation *op, instr->ctx.waitrdy.timeout_ms); break; } + + if (instr->delay_ns) + ndelay(instr->delay_ns); } return ret; From a4953e7b6f6ab5e1faf3267b5728e40eac1b6f8d Mon Sep 17 00:00:00 2001 From: Herve Codina Date: Fri, 19 Nov 2021 16:03:16 +0100 Subject: [PATCH 121/172] mtd: rawnand: fsmc: Fix timing computation commit 9472335eaa1452b51dc8e8edaa1a342997cb80c7 upstream. Under certain circumstances, the timing settings calculated by the FSMC NAND controller driver were inaccurate. These settings led to incorrect data reads or fallback to timing mode 0 depending on the NAND chip used. The timing computation did not take into account the following constraint given in SPEAr3xx reference manual: twait >= tCEA - (tset * TCLK) + TOUTDEL + TINDEL Enhance the timings calculation by taking into account this additional constraint. This change has no impact on slow timing modes such as mode 0. Indeed, on mode 0, computed values are the same with and without the patch. NANDs which previously stayed in mode 0 because of fallback to mode 0 can now work at higher speeds and NANDs which were not working at all because of the corrupted data work at high speeds without troubles. Overall improvement on a Micron/MT29F1G08 (flash_speed tool): mode0 mode3 eraseblock write speed 3220 KiB/s 4511 KiB/s eraseblock read speed 4491 KiB/s 7529 KiB/s Fixes: d9fb079571833 ("mtd: nand: fsmc: add support for SDR timings") Signed-off-by: Herve Codina Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-5-herve.codina@bootlin.com Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/raw/fsmc_nand.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c index 0a6c9ef0ea8b..6b2bda815b88 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -94,6 +94,14 @@ #define FSMC_BUSY_WAIT_TIMEOUT (1 * HZ) +/* + * According to SPEAr300 Reference Manual (RM0082) + * TOUDEL = 7ns (Output delay from the flip-flops to the board) + * TINDEL = 5ns (Input delay from the board to the flipflop) + */ +#define TOUTDEL 7000 +#define TINDEL 5000 + struct fsmc_nand_timings { u8 tclr; u8 tar; @@ -278,7 +286,7 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host, { unsigned long hclk = clk_get_rate(host->clk); unsigned long hclkn = NSEC_PER_SEC / hclk; - u32 thiz, thold, twait, tset; + u32 thiz, thold, twait, tset, twait_min; if (sdrt->tRC_min < 30000) return -EOPNOTSUPP; @@ -310,13 +318,6 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host, else if (tims->thold > FSMC_THOLD_MASK) tims->thold = FSMC_THOLD_MASK; - twait = max(sdrt->tRP_min, sdrt->tWP_min); - tims->twait = DIV_ROUND_UP(twait / 1000, hclkn) - 1; - if (tims->twait == 0) - tims->twait = 1; - else if (tims->twait > FSMC_TWAIT_MASK) - tims->twait = FSMC_TWAIT_MASK; - tset = max(sdrt->tCS_min - sdrt->tWP_min, sdrt->tCEA_max - sdrt->tREA_max); tims->tset = DIV_ROUND_UP(tset / 1000, hclkn) - 1; @@ -325,6 +326,21 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host, else if (tims->tset > FSMC_TSET_MASK) tims->tset = FSMC_TSET_MASK; + /* + * According to SPEAr300 Reference Manual (RM0082) which gives more + * information related to FSMSC timings than the SPEAr600 one (RM0305), + * twait >= tCEA - (tset * TCLK) + TOUTDEL + TINDEL + */ + twait_min = sdrt->tCEA_max - ((tims->tset + 1) * hclkn * 1000) + + TOUTDEL + TINDEL; + twait = max3(sdrt->tRP_min, sdrt->tWP_min, twait_min); + + tims->twait = DIV_ROUND_UP(twait / 1000, hclkn) - 1; + if (tims->twait == 0) + tims->twait = 1; + else if (tims->twait > FSMC_TWAIT_MASK) + tims->twait = FSMC_TWAIT_MASK; + return 0; } From f8358589b31b6f39dd006f15f719bf54e7ce89cf Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Fri, 19 Nov 2021 10:14:18 -0800 Subject: [PATCH 122/172] bpf, sockmap: Re-evaluate proto ops when psock is removed from sockmap commit c0d95d3380ee099d735e08618c0d599e72f6c8b0 upstream. When a sock is added to a sock map we evaluate what proto op hooks need to be used. However, when the program is removed from the sock map we have not been evaluating if that changes the required program layout. Before the patch listed in the 'fixes' tag this was not causing failures because the base program set handles all cases. Specifically, the case with a stream parser and the case with out a stream parser are both handled. With the fix below we identified a race when running with a proto op that attempts to read skbs off both the stream parser and the skb->receive_queue. Namely, that a race existed where when the stream parser is empty checking the skb->receive_queue from recvmsg at the precies moment when the parser is paused and the receive_queue is not empty could result in skipping the stream parser. This may break a RX policy depending on the parser to run. The fix tag then loads a specific proto ops that resolved this race. But, we missed removing that proto ops recv hook when the sock is removed from the sockmap. The result is the stream parser is stopped so no more skbs will be aggregated there, but the hook and BPF program continues to be attached on the psock. User space will then get an EBUSY when trying to read the socket because the recvmsg() handler is now waiting on a stopped stream parser. To fix we rerun the proto ops init() function which will look at the new set of progs attached to the psock and rest the proto ops hook to the correct handlers. And in the above case where we remove the sock from the sock map the RX prog will no longer be listed so the proto ops is removed. Fixes: c5d2177a72a16 ("bpf, sockmap: Fix race in ingress receive verdict with redirect to self") Signed-off-by: John Fastabend Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211119181418.353932-3-john.fastabend@gmail.com Signed-off-by: Greg Kroah-Hartman --- net/core/skmsg.c | 5 +++++ net/core/sock_map.c | 5 ++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 1ae52ac943f6..8eb671c827f9 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -1124,6 +1124,8 @@ void sk_psock_start_strp(struct sock *sk, struct sk_psock *psock) void sk_psock_stop_strp(struct sock *sk, struct sk_psock *psock) { + psock_set_prog(&psock->progs.stream_parser, NULL); + if (!psock->saved_data_ready) return; @@ -1212,6 +1214,9 @@ void sk_psock_start_verdict(struct sock *sk, struct sk_psock *psock) void sk_psock_stop_verdict(struct sock *sk, struct sk_psock *psock) { + psock_set_prog(&psock->progs.stream_verdict, NULL); + psock_set_prog(&psock->progs.skb_verdict, NULL); + if (!psock->saved_data_ready) return; diff --git a/net/core/sock_map.c b/net/core/sock_map.c index 2884ac34d647..c89f527411e8 100644 --- a/net/core/sock_map.c +++ b/net/core/sock_map.c @@ -167,8 +167,11 @@ static void sock_map_del_link(struct sock *sk, write_lock_bh(&sk->sk_callback_lock); if (strp_stop) sk_psock_stop_strp(sk, psock); - else + if (verdict_stop) sk_psock_stop_verdict(sk, psock); + + if (psock->psock_update_sk_prot) + psock->psock_update_sk_prot(sk, psock, false); write_unlock_bh(&sk->sk_callback_lock); } } From 16431e442db248ecd8aa9457cf0a656f1885f56e Mon Sep 17 00:00:00 2001 From: Norbert Zulinski Date: Mon, 22 Nov 2021 12:29:05 +0100 Subject: [PATCH 123/172] i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc commit 23ec111bf3549aae37140330c31a16abfc172421 upstream. When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors. Fixes: 02e9c290814c ("i40e: debugfs interface") Signed-off-by: Sylwester Dziedziuch Signed-off-by: Norbert Zulinski Signed-off-by: Mateusz Palczewski Tested-by: Gurucharan G Signed-off-by: Tony Nguyen Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 291e61ac3e44..2c1b1da1220e 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -553,6 +553,14 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); return; } + if (vsi->type != I40E_VSI_MAIN && + vsi->type != I40E_VSI_FDIR && + vsi->type != I40E_VSI_VMDQ2) { + dev_info(&pf->pdev->dev, + "vsi %d type %d descriptor rings not available\n", + vsi_seid, vsi->type); + return; + } if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) { dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid); return; From 99bc19898375f71fd31e125adc36493fcb165a83 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Beh=C3=BAn?= Date: Thu, 25 Nov 2021 17:01:48 +0100 Subject: [PATCH 124/172] Revert "PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 39bd54d43b3f8b3c7b3a75f5d868d8bb858860e7 upstream. This reverts commit 239edf686c14a9ff926dec2f350289ed7adfefe2. 239edf686c14 ("PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge") added support for the Type 1 Expansion ROM BAR at config offset 0x38, based on the register being listed in the Marvell Armada A3720 spec. But the spec doesn't document it at all for RC mode, and there is no ROM in the SOC, so remove this emulation for now. The PCI bridge which represents aardvark's PCIe Root Port has an Expansion ROM Base Address register at offset 0x30, but its meaning is different than PCI's Expansion ROM BAR register, although the layout is the same. (This is why we thought it does the same thing.) First: there is no ROM (or part of BootROM) in the A3720 SOC dedicated for PCIe Root Port (or controller in RC mode) containing executable code that would initialize the Root Port, suitable for execution in bootloader (this is how Expansion ROM BAR is used on x86). Second: in A3720 spec the register (address 0xD0070030) is not documented at all for Root Complex mode, but similar to other BAR registers, it has an "entangled partner" in register 0xD0075920, which does address translation for the BAR in 0xD0070030: - the BAR register sets the address from the view of PCIe bus - the translation register sets the address from the view of the CPU The other BAR registers also have this entangled partner, and they can be used to: - in RC mode: address-checking on the receive side of the RC (they can define address ranges for memory accesses from remote Endpoints to the RC) - in Endpoint mode: allow the remote CPU to access memory on A3720 The Expansion ROM BAR has only the Endpoint part documented, but from the similarities we think that it can also be used in RC mode in that way. So either Expansion ROM BAR has different meaning (if the hypothesis above is true), or we don't know it's meaning (since it is not documented for RC mode). Remove the register from the emulated bridge accessing functions. [bhelgaas: summarize reason for removal (first paragraph)] Fixes: 239edf686c14 ("PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge") Link: https://lore.kernel.org/r/20211125160148.26029-3-kabel@kernel.org Signed-off-by: Marek Behún Signed-off-by: Bjorn Helgaas Reviewed-by: Pali Rohár Signed-off-by: Greg Kroah-Hartman --- drivers/pci/controller/pci-aardvark.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index c5300d49807a..c3b725afa11f 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -32,7 +32,6 @@ #define PCIE_CORE_DEV_ID_REG 0x0 #define PCIE_CORE_CMD_STATUS_REG 0x4 #define PCIE_CORE_DEV_REV_REG 0x8 -#define PCIE_CORE_EXP_ROM_BAR_REG 0x30 #define PCIE_CORE_PCIEXP_CAP 0xc0 #define PCIE_CORE_ERR_CAPCTL_REG 0x118 #define PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX BIT(5) @@ -774,10 +773,6 @@ advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge, *value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG); return PCI_BRIDGE_EMUL_HANDLED; - case PCI_ROM_ADDRESS1: - *value = advk_readl(pcie, PCIE_CORE_EXP_ROM_BAR_REG); - return PCI_BRIDGE_EMUL_HANDLED; - case PCI_INTERRUPT_LINE: { /* * From the whole 32bit register we support reading from HW only @@ -810,10 +805,6 @@ advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge, advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG); break; - case PCI_ROM_ADDRESS1: - advk_writel(pcie, new, PCIE_CORE_EXP_ROM_BAR_REG); - break; - case PCI_INTERRUPT_LINE: if (mask & (PCI_BRIDGE_CTL_BUS_RESET << 16)) { u32 val = advk_readl(pcie, PCIE_CORE_CTRL1_REG); From f1131d3f1b50f5c45916f021fe8713550c5129e3 Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Tue, 23 Nov 2021 11:56:38 -0500 Subject: [PATCH 125/172] drm/amd/display: Fix DPIA outbox timeout after S3/S4/reset commit af6902ec415655236adea91826bd96ed0ab16f42 upstream. [Why] The HW interrupt gets disabled after S3/S4/reset so we don't receive notifications for HPD or AUX from DMUB - leading to timeout and black screen with (or without) DPIA links connected. [How] Re-enable the interrupt after S3/S4/reset like we do for the other DC interrupts. Guard both instances of the outbox interrupt enable or we'll hang during restore on ASIC that don't support it. Fixes: 6eff272dbee7ad ("drm/amd/display: Fix DPIA outbox timeout after GPU reset") Reviewed-by: Jude Shih Acked-by: Pavle Kotarac Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index dc995ce52eff..fef13e93a99f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2213,7 +2213,8 @@ static int dm_resume(void *handle) if (amdgpu_in_reset(adev)) { dc_state = dm->cached_dc_state; - amdgpu_dm_outbox_init(adev); + if (dc_enable_dmub_notifications(adev->dm.dc)) + amdgpu_dm_outbox_init(adev); r = dm_dmub_hw_init(adev); if (r) @@ -2262,6 +2263,10 @@ static int dm_resume(void *handle) /* TODO: Remove dc_state->dccg, use dc->dccg directly. */ dc_resource_state_construct(dm->dc, dm_state->context); + /* Re-enable outbox interrupts for DPIA. */ + if (dc_enable_dmub_notifications(adev->dm.dc)) + amdgpu_dm_outbox_init(adev); + /* Before powering on DC we need to re-initialize DMUB. */ r = dm_dmub_hw_init(adev); if (r) From 395022a71b6cae0c2555a1b5d3f961992640dd31 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Tue, 23 Nov 2021 16:12:29 -0800 Subject: [PATCH 126/172] perf tools: Fix SMT detection fast read path commit 4ffbe87e2d5b53bcb0213d8650bbe70bf942de6a upstream. sysfs__read_int() returns 0 on success, and so the fast read path was always failing. Fixes: bb629484d924118e ("perf tools: Simplify checking if SMT is active.") Signed-off-by: Ian Rogers Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kan Liang Cc: Konstantin Khlebnikov Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20211124001231.3277836-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/smt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/smt.c b/tools/perf/util/smt.c index 20bacd5972ad..34f1b1b1176c 100644 --- a/tools/perf/util/smt.c +++ b/tools/perf/util/smt.c @@ -15,7 +15,7 @@ int smt_on(void) if (cached) return cached_result; - if (sysfs__read_int("devices/system/cpu/smt/active", &cached_result) > 0) + if (sysfs__read_int("devices/system/cpu/smt/active", &cached_result) >= 0) goto done; ncpu = sysconf(_SC_NPROCESSORS_CONF); From 2e837d90ec09d106a001ad39fbb3dad1748ff2aa Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sat, 27 Nov 2021 17:31:59 +0100 Subject: [PATCH 127/172] Documentation/locking/locktypes: Update migrate_disable() bits. commit 6a631c0432dcccbcf45839016a07c015e335e9ae upstream. The initial implementation of migrate_disable() for mainline was a wrapper around preempt_disable(). RT kernels substituted this with a real migrate disable implementation. Later on mainline gained true migrate disable support, but the documentation was not updated. Update the documentation, remove the claims about migrate_disable() mapping to preempt_disable() on non-PREEMPT_RT kernels. Fixes: 74d862b682f51 ("sched: Make migrate_disable/enable() independent of RT") Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211127163200.10466-2-bigeasy@linutronix.de Signed-off-by: Greg Kroah-Hartman --- Documentation/locking/locktypes.rst | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst index ddada4a53749..4fd7b70fcde1 100644 --- a/Documentation/locking/locktypes.rst +++ b/Documentation/locking/locktypes.rst @@ -439,11 +439,9 @@ preemption. The following substitution works on both kernels:: spin_lock(&p->lock); p->count += this_cpu_read(var2); -On a non-PREEMPT_RT kernel migrate_disable() maps to preempt_disable() -which makes the above code fully equivalent. On a PREEMPT_RT kernel migrate_disable() ensures that the task is pinned on the current CPU which in turn guarantees that the per-CPU access to var1 and var2 are staying on -the same CPU. +the same CPU while the task remains preemptible. The migrate_disable() substitution is not valid for the following scenario:: @@ -456,9 +454,8 @@ scenario:: p = this_cpu_ptr(&var1); p->val = func2(); -While correct on a non-PREEMPT_RT kernel, this breaks on PREEMPT_RT because -here migrate_disable() does not protect against reentrancy from a -preempting task. A correct substitution for this case is:: +This breaks because migrate_disable() does not protect against reentrancy from +a preempting task. A correct substitution for this case is:: func() { From 9c2407afbcd0edd37065ac3796bada8fc525c923 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Tue, 30 Nov 2021 09:27:56 +0100 Subject: [PATCH 128/172] dt-bindings: net: Reintroduce PHY no lane swap binding commit 96db48c9d777a73a33b1d516c5cfed7a417a5f40 upstream. This binding was already documented in phy.txt, commit 252ae5330daa ("Documentation: devicetree: Add PHY no lane swap binding"), but got accidently removed during YAML conversion in commit d8704342c109 ("dt-bindings: net: Add a YAML schemas for the generic PHY options"). Note: 'enet-phy-lane-no-swap' and the absence of 'enet-phy-lane-swap' are not identical, as the former one disable this feature, while the latter one doesn't change anything. Fixes: d8704342c109 ("dt-bindings: net: Add a YAML schemas for the generic PHY options") Signed-off-by: Alexander Stein Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20211130082756.713919-1-alexander.stein@ew.tq-group.com Signed-off-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/net/ethernet-phy.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml index 2766fe45bb98..ee42328a109d 100644 --- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml +++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml @@ -91,6 +91,14 @@ properties: compensate for the board being designed with the lanes swapped. + enet-phy-lane-no-swap: + $ref: /schemas/types.yaml#/definitions/flag + description: + If set, indicates that PHY will disable swap of the + TX/RX lanes. This property allows the PHY to work correcly after + e.g. wrong bootstrap configuration caused by issues in PCB + layout design. + eee-broken-100tx: $ref: /schemas/types.yaml#/definitions/flag description: From 8ca1ca40977b311ae11648f38548f383c38ab015 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 30 Nov 2021 10:12:41 -0300 Subject: [PATCH 129/172] tools build: Remove needless libpython-version feature check that breaks test-all fast path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 3d1d57debee2d342a47615707588b96658fabb85 upstream. Since 66dfdff03d196e51 ("perf tools: Add Python 3 support") we don't use the tools/build/feature/test-libpython-version.c version in any Makefile feature check: $ find tools/ -type f | xargs grep feature-libpython-version $ The only place where this was used was removed in 66dfdff03d196e51: - ifneq ($(feature-libpython-version), 1) - $(warning Python 3 is not yet supported; please set) - $(warning PYTHON and/or PYTHON_CONFIG appropriately.) - $(warning If you also have Python 2 installed, then) - $(warning try something like:) - $(warning $(and ,)) - $(warning $(and ,) make PYTHON=python2) - $(warning $(and ,)) - $(warning Otherwise, disable Python support entirely:) - $(warning $(and ,)) - $(warning $(and ,) make NO_LIBPYTHON=1) - $(warning $(and ,)) - $(error $(and ,)) - else - LDFLAGS += $(PYTHON_EMBED_LDFLAGS) - EXTLIBS += $(PYTHON_EMBED_LIBADD) - LANG_BINDINGS += $(obj-perf)python/perf.so - $(call detected,CONFIG_LIBPYTHON) - endif And nowadays we either build with PYTHON=python3 or just install the python3 devel packages and perf will build against it. But the leftover feature-libpython-version check made the fast path feature detection to break in all cases except when python2 devel files were installed: $ rpm -qa | grep python.*devel python3-devel-3.9.7-1.fc34.x86_64 $ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ; $ make -C tools/perf O=/tmp/build/perf install-bin make: Entering directory '/var/home/acme/git/perf/tools/perf' BUILD: Doing 'make -j32' parallel build HOSTCC /tmp/build/perf/fixdep.o $ cat /tmp/build/perf/feature/test-all.make.output In file included from test-all.c:18: test-libpython-version.c:5:10: error: #error 5 | #error | ^~~~~ $ ldd ~/bin/perf | grep python libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007fda6dbcf000) $ As python3 is the norm these days, fix this by just removing the unused feature-libpython-version feature check, making the test-all fast path to work with the common case. With this: $ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ; $ make -C tools/perf O=/tmp/build/perf install-bin |& head make: Entering directory '/var/home/acme/git/perf/tools/perf' BUILD: Doing 'make -j32' parallel build HOSTCC /tmp/build/perf/fixdep.o HOSTLD /tmp/build/perf/fixdep-in.o LINK /tmp/build/perf/fixdep Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] $ ldd ~/bin/perf | grep python libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007f58800b0000) $ cat /tmp/build/perf/feature/test-all.make.output $ Reviewed-by: James Clark Fixes: 66dfdff03d196e51 ("perf tools: Add Python 3 support") Cc: Adrian Hunter Cc: Ian Rogers Cc: Jaroslav Škarvada Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/YaYmeeC6CS2b8OSz@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/build/Makefile.feature | 1 - tools/build/feature/Makefile | 4 ---- tools/build/feature/test-all.c | 5 ----- tools/build/feature/test-libpython-version.c | 11 ----------- tools/perf/Makefile.config | 2 -- 5 files changed, 23 deletions(-) delete mode 100644 tools/build/feature/test-libpython-version.c diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 3dd2f68366f9..88dd7db55d38 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -48,7 +48,6 @@ FEATURE_TESTS_BASIC := \ numa_num_possible_cpus \ libperl \ libpython \ - libpython-version \ libslang \ libslang-include-subdir \ libtraceevent \ diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index eff55d287db1..e1e670014bd0 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -32,7 +32,6 @@ FILES= \ test-numa_num_possible_cpus.bin \ test-libperl.bin \ test-libpython.bin \ - test-libpython-version.bin \ test-libslang.bin \ test-libslang-include-subdir.bin \ test-libtraceevent.bin \ @@ -223,9 +222,6 @@ $(OUTPUT)test-libperl.bin: $(OUTPUT)test-libpython.bin: $(BUILD) $(FLAGS_PYTHON_EMBED) -$(OUTPUT)test-libpython-version.bin: - $(BUILD) - $(OUTPUT)test-libbfd.bin: $(BUILD) -DPACKAGE='"perf"' -lbfd -ldl diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c index 0b243ce842be..5ffafb967b6e 100644 --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -14,10 +14,6 @@ # include "test-libpython.c" #undef main -#define main main_test_libpython_version -# include "test-libpython-version.c" -#undef main - #define main main_test_libperl # include "test-libperl.c" #undef main @@ -177,7 +173,6 @@ int main(int argc, char *argv[]) { main_test_libpython(); - main_test_libpython_version(); main_test_libperl(); main_test_hello(); main_test_libelf(); diff --git a/tools/build/feature/test-libpython-version.c b/tools/build/feature/test-libpython-version.c deleted file mode 100644 index 47714b942d4d..000000000000 --- a/tools/build/feature/test-libpython-version.c +++ /dev/null @@ -1,11 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include - -#if PY_VERSION_HEX >= 0x03000000 - #error -#endif - -int main(void) -{ - return 0; -} diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 14e3e8d702a0..3c077f61d676 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -271,8 +271,6 @@ endif FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS) FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS) -FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS) -FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS) FEATURE_CHECK_LDFLAGS-libaio = -lrt From 37493d4eb2e521ff1af32f1941a93125a7c0ae05 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 2 Dec 2021 14:34:37 +0000 Subject: [PATCH 130/172] net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 2be6d4d16a0849455a5c22490e3c5983495fed00 upstream. Currently, due to the sequential use of min_t() and clamp_t() macros, in cdc_ncm_check_tx_max(), if dwNtbOutMaxSize is not set, the logic sets tx_max to 0. This is then used to allocate the data area of the SKB requested later in cdc_ncm_fill_tx_frame(). This does not cause an issue presently because when memory is allocated during initialisation phase of SKB creation, more memory (512b) is allocated than is required for the SKB headers alone (320b), leaving some space (512b - 320b = 192b) for CDC data (172b). However, if more elements (for example 3 x u64 = [24b]) were added to one of the SKB header structs, say 'struct skb_shared_info', increasing its original size (320b [320b aligned]) to something larger (344b [384b aligned]), then suddenly the CDC data (172b) no longer fits in the spare SKB data area (512b - 384b = 128b). Consequently the SKB bounds checking semantics fails and panics: skbuff: skb_over_panic: text:ffffffff830a5b5f len:184 put:172 \ head:ffff888119227c00 data:ffff888119227c00 tail:0xb8 end:0x80 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:110! RIP: 0010:skb_panic+0x14f/0x160 net/core/skbuff.c:106 Call Trace: skb_over_panic+0x2c/0x30 net/core/skbuff.c:115 skb_put+0x205/0x210 net/core/skbuff.c:1877 skb_put_zero include/linux/skbuff.h:2270 [inline] cdc_ncm_ndp16 drivers/net/usb/cdc_ncm.c:1116 [inline] cdc_ncm_fill_tx_frame+0x127f/0x3d50 drivers/net/usb/cdc_ncm.c:1293 cdc_ncm_tx_fixup+0x98/0xf0 drivers/net/usb/cdc_ncm.c:1514 By overriding the max value with the default CDC_NCM_NTB_MAX_SIZE_TX when not offered through the system provided params, we ensure enough data space is allocated to handle the CDC data, meaning no crash will occur. Cc: Oliver Neukum Fixes: 289507d3364f9 ("net: cdc_ncm: use sysfs for rx/tx aggregation tuning") Signed-off-by: Lee Jones Reviewed-by: Bjørn Mork Link: https://lore.kernel.org/r/20211202143437.1411410-1-lee.jones@linaro.org Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/cdc_ncm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 24753a4da7e6..e303b522efb5 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -181,6 +181,8 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx) min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth32); max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)); + if (max == 0) + max = CDC_NCM_NTB_MAX_SIZE_TX; /* dwNtbOutMaxSize not set */ /* some devices set dwNtbOutMaxSize too low for the above default */ min = min(min, max); From 089bd0b0bf1ee211a5cdec79cb3177254ca2bb71 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 3 Dec 2021 13:11:28 +0300 Subject: [PATCH 131/172] net: altera: set a couple error code in probe() commit badd7857f5c933a3dc34942a2c11d67fdbdc24de upstream. There are two error paths which accidentally return success instead of a negative error code. Fixes: bbd2190ce96d ("Altera TSE: Add main and header file for Altera Ethernet Driver") Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/altera/altera_tse_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index 1c00d719e5d7..804b37c76b1e 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1430,16 +1430,19 @@ static int altera_tse_probe(struct platform_device *pdev) priv->rxdescmem_busaddr = dma_res->start; } else { + ret = -ENODEV; goto err_free_netdev; } - if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) + if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) { dma_set_coherent_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask)); - else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) + } else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) { dma_set_coherent_mask(priv->device, DMA_BIT_MASK(32)); - else + } else { + ret = -EIO; goto err_free_netdev; + } /* MAC address space */ ret = request_and_map(pdev, "control_port", &control_port, From 48135149c08958c9cd6be737c81ad90e84a74c53 Mon Sep 17 00:00:00 2001 From: Joakim Zhang Date: Mon, 6 Dec 2021 21:54:57 +0800 Subject: [PATCH 132/172] net: fec: only clear interrupt of handling queue in fec_enet_rx_queue() commit b5bd95d17102b6719e3531d627875b9690371383 upstream. Background: We have a customer is running a Profinet stack on the 8MM which receives and responds PNIO packets every 4ms and PNIO-CM packets every 40ms. However, from time to time the received PNIO-CM package is "stock" and is only handled when receiving a new PNIO-CM or DCERPC-Ping packet (tcpdump shows the PNIO-CM and the DCERPC-Ping packet at the same time but the PNIO-CM HW timestamp is from the expected 40 ms and not the 2s delay of the DCERPC-Ping). After debugging, we noticed PNIO, PNIO-CM and DCERPC-Ping packets would be handled by different RX queues. The root cause should be driver ack all queues' interrupt when handle a specific queue in fec_enet_rx_queue(). The blamed patch is introduced to receive as much packets as possible once to avoid interrupt flooding. But it's unreasonable to clear other queues'interrupt when handling one queue, this patch tries to fix it. Fixes: ed63f1dcd578 (net: fec: clear receive interrupts before processing a packet) Cc: Russell King Reported-by: Nicolas Diaz Signed-off-by: Joakim Zhang Link: https://lore.kernel.org/r/20211206135457.15946-1-qiangqing.zhang@nxp.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/freescale/fec.h | 3 +++ drivers/net/ethernet/freescale/fec_main.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index 7b4961daa254..ed7301b69169 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -377,6 +377,9 @@ struct bufdesc_ex { #define FEC_ENET_WAKEUP ((uint)0x00020000) /* Wakeup request */ #define FEC_ENET_TXF (FEC_ENET_TXF_0 | FEC_ENET_TXF_1 | FEC_ENET_TXF_2) #define FEC_ENET_RXF (FEC_ENET_RXF_0 | FEC_ENET_RXF_1 | FEC_ENET_RXF_2) +#define FEC_ENET_RXF_GET(X) (((X) == 0) ? FEC_ENET_RXF_0 : \ + (((X) == 1) ? FEC_ENET_RXF_1 : \ + FEC_ENET_RXF_2)) #define FEC_ENET_TS_AVAIL ((uint)0x00010000) #define FEC_ENET_TS_TIMER ((uint)0x00008000) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index ec87b370bba1..a3e87e10ee6b 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1480,7 +1480,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id) break; pkt_received++; - writel(FEC_ENET_RXF, fep->hwp + FEC_IEVENT); + writel(FEC_ENET_RXF_GET(queue_id), fep->hwp + FEC_IEVENT); /* Check for errors. */ status ^= BD_ENET_RX_LAST; From 0c9f1ab29e7f0714f0c2a83defb1fb4d77ec0853 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 6 Dec 2021 08:53:29 -0800 Subject: [PATCH 133/172] net, neigh: clear whole pneigh_entry at alloc time commit e195e9b5dee6459d8c8e6a314cc71a644a0537fd upstream. Commit 2c611ad97a82 ("net, neigh: Extend neigh->flags to 32 bit to allow for extensions") enables a new KMSAM warning [1] I think the bug is actually older, because the following intruction only occurred if ndm->ndm_flags had NTF_PROXY set. pn->flags = ndm->ndm_flags; Let's clear all pneigh_entry fields at alloc time. [1] BUG: KMSAN: uninit-value in pneigh_fill_info+0x986/0xb30 net/core/neighbour.c:2593 pneigh_fill_info+0x986/0xb30 net/core/neighbour.c:2593 pneigh_dump_table net/core/neighbour.c:2715 [inline] neigh_dump_info+0x1e3f/0x2c60 net/core/neighbour.c:2832 netlink_dump+0xaca/0x16a0 net/netlink/af_netlink.c:2265 __netlink_dump_start+0xd1c/0xee0 net/netlink/af_netlink.c:2370 netlink_dump_start include/linux/netlink.h:254 [inline] rtnetlink_rcv_msg+0x181b/0x18c0 net/core/rtnetlink.c:5534 netlink_rcv_skb+0x447/0x800 net/netlink/af_netlink.c:2491 rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:5589 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x1095/0x1360 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x16f3/0x1870 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] sock_write_iter+0x594/0x690 net/socket.c:1057 call_write_iter include/linux/fs.h:2162 [inline] new_sync_write fs/read_write.c:503 [inline] vfs_write+0x1318/0x2030 fs/read_write.c:590 ksys_write+0x28c/0x520 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0xdb/0x120 fs/read_write.c:652 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae Uninit was created at: slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:3251 [inline] slab_alloc mm/slub.c:3259 [inline] __kmalloc+0xc3c/0x12d0 mm/slub.c:4437 kmalloc include/linux/slab.h:595 [inline] pneigh_lookup+0x60f/0xd70 net/core/neighbour.c:766 arp_req_set_public net/ipv4/arp.c:1016 [inline] arp_req_set+0x430/0x10a0 net/ipv4/arp.c:1032 arp_ioctl+0x8d4/0xb60 net/ipv4/arp.c:1232 inet_ioctl+0x4ef/0x820 net/ipv4/af_inet.c:947 sock_do_ioctl net/socket.c:1118 [inline] sock_ioctl+0xa3f/0x13e0 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x2df/0x4a0 fs/ioctl.c:860 __x64_sys_ioctl+0xd8/0x110 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae CPU: 1 PID: 20001 Comm: syz-executor.0 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Fixes: 62dd93181aaa ("[IPV6] NDISC: Set per-entry is_router flag in Proxy NA.") Signed-off-by: Eric Dumazet Cc: Roopa Prabhu Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20211206165329.1049835-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/core/neighbour.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 3e58037a8ae6..ff049733ccee 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -733,11 +733,10 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl, ASSERT_RTNL(); - n = kmalloc(sizeof(*n) + key_len, GFP_KERNEL); + n = kzalloc(sizeof(*n) + key_len, GFP_KERNEL); if (!n) goto out; - n->protocol = 0; write_pnet(&n->net, net); memcpy(n->key, pkey, key_len); n->dev = dev; From a72723e89f4d339f2900b3163042e360e9719699 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 7 Dec 2021 11:24:16 +0300 Subject: [PATCH 134/172] net/qla3xxx: fix an error code in ql_adapter_up() commit d17b9737c2bc09b4ac6caf469826e5a7ce3ffab7 upstream. The ql_wait_for_drvr_lock() fails and returns false, then this function should return an error code instead of returning success. The other problem is that the success path prints an error message netdev_err(ndev, "Releasing driver lock\n"); Delete that and re-order the code a little to make it more clear. Fixes: 5a4faa873782 ("[PATCH] qla3xxx NIC driver") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20211207082416.GA16110@kili Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/qlogic/qla3xxx.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index c00ad57575ea..4eb9ea280474 100644 --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -3478,20 +3478,19 @@ static int ql_adapter_up(struct ql3_adapter *qdev) spin_lock_irqsave(&qdev->hw_lock, hw_flags); - err = ql_wait_for_drvr_lock(qdev); - if (err) { - err = ql_adapter_initialize(qdev); - if (err) { - netdev_err(ndev, "Unable to initialize adapter\n"); - goto err_init; - } - netdev_err(ndev, "Releasing driver lock\n"); - ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); - } else { + if (!ql_wait_for_drvr_lock(qdev)) { netdev_err(ndev, "Could not acquire driver lock\n"); + err = -ENODEV; goto err_lock; } + err = ql_adapter_initialize(qdev); + if (err) { + netdev_err(ndev, "Unable to initialize adapter\n"); + goto err_init; + } + ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); set_bit(QL_ADAPTER_UP, &qdev->flags); From ef472b023b85e46bc9af08c1c91ab151fe886e35 Mon Sep 17 00:00:00 2001 From: Peilin Ye Date: Tue, 30 Nov 2021 16:47:20 -0800 Subject: [PATCH 135/172] selftests/fib_tests: Rework fib_rp_filter_test() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit f6071e5e3961eeb5300bd0901c9e128598730ae3 upstream. Currently rp_filter tests in fib_tests.sh:fib_rp_filter_test() are failing. ping sockets are bound to dummy1 using the "-I" option (SO_BINDTODEVICE), but socket lookup is failing when receiving ping replies, since the routing table thinks they belong to dummy0. For example, suppose ping is using a SOCK_RAW socket for ICMP messages. When receiving ping replies, in __raw_v4_lookup(), sk->sk_bound_dev_if is 3 (dummy1), but dif (skb_rtable(skb)->rt_iif) says 2 (dummy0), so the raw_sk_bound_dev_eq() check fails. Similar things happen in ping_lookup() for SOCK_DGRAM sockets. These tests used to pass due to a bug [1] in iputils, where "ping -I" actually did not bind ICMP message sockets to device. The bug has been fixed by iputils commit f455fee41c07 ("ping: also bind the ICMP socket to the specific device") in 2016, which is why our rp_filter tests started to fail. See [2] . Fixing the tests while keeping everything in one netns turns out to be nontrivial. Rework the tests and build the following topology: ┌─────────────────────────────┐ ┌─────────────────────────────┐ │ network namespace 1 (ns1) │ │ network namespace 2 (ns2) │ │ │ │ │ │ ┌────┐ ┌─────┐ │ │ ┌─────┐ ┌────┐ │ │ │ lo │<───>│veth1│<────────┼────┼─>│veth2│<──────────>│ lo │ │ │ └────┘ ├─────┴──────┐ │ │ ├─────┴──────┐ └────┘ │ │ │192.0.2.1/24│ │ │ │192.0.2.1/24│ │ │ └────────────┘ │ │ └────────────┘ │ └─────────────────────────────┘ └─────────────────────────────┘ Consider sending an ICMP_ECHO packet A in ns2. Both source and destination IP addresses are 192.0.2.1, and we use strict mode rp_filter in both ns1 and ns2: 1. A is routed to lo since its destination IP address is one of ns2's local addresses (veth2); 2. A is redirected from lo's egress to veth2's egress using mirred; 3. A arrives at veth1's ingress in ns1; 4. A is redirected from veth1's ingress to lo's ingress, again, using mirred; 5. In __fib_validate_source(), fib_info_nh_uses_dev() returns false, since A was received on lo, but reverse path lookup says veth1; 6. However A is not dropped since we have relaxed this check for lo in commit 66f8209547cc ("fib: relax source validation check for loopback packets"); Making sure A is not dropped here in this corner case is the whole point of having this test. 7. As A reaches the ICMP layer, an ICMP_ECHOREPLY packet, B, is generated; 8. Similarly, B is redirected from lo's egress to veth1's egress (in ns1), then redirected once again from veth2's ingress to lo's ingress (in ns2), using mirred. Also test "ping 127.0.0.1" from ns2. It does not trigger the relaxed check in __fib_validate_source(), but just to make sure the topology works with loopback addresses. Tested with ping from iputils 20210722-41-gf9fb573: $ ./fib_tests.sh -t rp_filter IPv4 rp_filter tests TEST: rp_filter passes local packets [ OK ] TEST: rp_filter passes loopback packets [ OK ] [1] https://github.com/iputils/iputils/issues/55 [2] https://github.com/iputils/iputils/commit/f455fee41c077d4b700a473b2f5b3487b8febc1d Reported-by: Hangbin Liu Fixes: adb701d6cfa4 ("selftests: add a test case for rp_filter") Reviewed-by: Cong Wang Signed-off-by: Peilin Ye Acked-by: David Ahern Link: https://lore.kernel.org/r/20211201004720.6357-1-yepeilin.cs@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/net/fib_tests.sh | 59 ++++++++++++++++++++---- 1 file changed, 49 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index 5abe92d55b69..996af1ae3d3d 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -444,24 +444,63 @@ fib_rp_filter_test() setup set -e + ip netns add ns2 + ip netns set ns2 auto + + ip -netns ns2 link set dev lo up + + $IP link add name veth1 type veth peer name veth2 + $IP link set dev veth2 netns ns2 + $IP address add 192.0.2.1/24 dev veth1 + ip -netns ns2 address add 192.0.2.1/24 dev veth2 + $IP link set dev veth1 up + ip -netns ns2 link set dev veth2 up + $IP link set dev lo address 52:54:00:6a:c7:5e - $IP link set dummy0 address 52:54:00:6a:c7:5e - $IP link add dummy1 type dummy - $IP link set dummy1 address 52:54:00:6a:c7:5e - $IP link set dev dummy1 up + $IP link set dev veth1 address 52:54:00:6a:c7:5e + ip -netns ns2 link set dev lo address 52:54:00:6a:c7:5e + ip -netns ns2 link set dev veth2 address 52:54:00:6a:c7:5e + + # 1. (ns2) redirect lo's egress to veth2's egress + ip netns exec ns2 tc qdisc add dev lo parent root handle 1: fq_codel + ip netns exec ns2 tc filter add dev lo parent 1: protocol arp basic \ + action mirred egress redirect dev veth2 + ip netns exec ns2 tc filter add dev lo parent 1: protocol ip basic \ + action mirred egress redirect dev veth2 + + # 2. (ns1) redirect veth1's ingress to lo's ingress + $NS_EXEC tc qdisc add dev veth1 ingress + $NS_EXEC tc filter add dev veth1 ingress protocol arp basic \ + action mirred ingress redirect dev lo + $NS_EXEC tc filter add dev veth1 ingress protocol ip basic \ + action mirred ingress redirect dev lo + + # 3. (ns1) redirect lo's egress to veth1's egress + $NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel + $NS_EXEC tc filter add dev lo parent 1: protocol arp basic \ + action mirred egress redirect dev veth1 + $NS_EXEC tc filter add dev lo parent 1: protocol ip basic \ + action mirred egress redirect dev veth1 + + # 4. (ns2) redirect veth2's ingress to lo's ingress + ip netns exec ns2 tc qdisc add dev veth2 ingress + ip netns exec ns2 tc filter add dev veth2 ingress protocol arp basic \ + action mirred ingress redirect dev lo + ip netns exec ns2 tc filter add dev veth2 ingress protocol ip basic \ + action mirred ingress redirect dev lo + $NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1 $NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1 $NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1 - - $NS_EXEC tc qd add dev dummy1 parent root handle 1: fq_codel - $NS_EXEC tc filter add dev dummy1 parent 1: protocol arp basic action mirred egress redirect dev lo - $NS_EXEC tc filter add dev dummy1 parent 1: protocol ip basic action mirred egress redirect dev lo + ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1 + ip netns exec ns2 sysctl -qw net.ipv4.conf.all.accept_local=1 + ip netns exec ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1 set +e - run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 198.51.100.1" + run_cmd "ip netns exec ns2 ping -w1 -c1 192.0.2.1" log_test $? 0 "rp_filter passes local packets" - run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 127.0.0.1" + run_cmd "ip netns exec ns2 ping -w1 -c1 127.0.0.1" log_test $? 0 "rp_filter passes loopback packets" cleanup From 36dfdf11af49d3c009c711fb16f5c6e7a274505d Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 9 Dec 2021 18:59:27 +0100 Subject: [PATCH 136/172] USB: gadget: detect too-big endpoint 0 requests commit 153a2d7e3350cc89d406ba2d35be8793a64c2038 upstream. Sometimes USB hosts can ask for buffers that are too large from endpoint 0, which should not be allowed. If this happens for OUT requests, stall the endpoint, but for IN requests, trim the request size to the endpoint buffer size. Co-developed-by: Szymon Heidrich Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/composite.c | 12 ++++++++++++ drivers/usb/gadget/legacy/dbgp.c | 13 +++++++++++++ drivers/usb/gadget/legacy/inode.c | 16 +++++++++++++++- 3 files changed, 40 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 504c1cbc255d..1ef7922b57b6 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1679,6 +1679,18 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) struct usb_function *f = NULL; u8 endp; + if (w_length > USB_COMP_EP0_BUFSIZ) { + if (ctrl->bRequestType == USB_DIR_OUT) { + goto done; + } else { + /* Cast away the const, we are going to overwrite on purpose. */ + __le16 *temp = (__le16 *)&ctrl->wLength; + + *temp = cpu_to_le16(USB_COMP_EP0_BUFSIZ); + w_length = USB_COMP_EP0_BUFSIZ; + } + } + /* partial re-init of the response message; the function or the * gadget might need to intercept e.g. a control-OUT completion * when we delegate to it. diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c index e1d566c9918a..e567afcb2794 100644 --- a/drivers/usb/gadget/legacy/dbgp.c +++ b/drivers/usb/gadget/legacy/dbgp.c @@ -345,6 +345,19 @@ static int dbgp_setup(struct usb_gadget *gadget, void *data = NULL; u16 len = 0; + if (length > DBGP_REQ_LEN) { + if (ctrl->bRequestType == USB_DIR_OUT) { + return err; + } else { + /* Cast away the const, we are going to overwrite on purpose. */ + __le16 *temp = (__le16 *)&ctrl->wLength; + + *temp = cpu_to_le16(DBGP_REQ_LEN); + length = DBGP_REQ_LEN; + } + } + + if (request == USB_REQ_GET_DESCRIPTOR) { switch (value>>8) { case USB_DT_DEVICE: diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 539220d7f5b6..0a4041552ed1 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -110,6 +110,8 @@ enum ep0_state { /* enough for the whole queue: most events invalidate others */ #define N_EVENT 5 +#define RBUF_SIZE 256 + struct dev_data { spinlock_t lock; refcount_t count; @@ -144,7 +146,7 @@ struct dev_data { struct dentry *dentry; /* except this scratch i/o buffer for ep0 */ - u8 rbuf [256]; + u8 rbuf[RBUF_SIZE]; }; static inline void get_dev (struct dev_data *data) @@ -1334,6 +1336,18 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) u16 w_value = le16_to_cpu(ctrl->wValue); u16 w_length = le16_to_cpu(ctrl->wLength); + if (w_length > RBUF_SIZE) { + if (ctrl->bRequestType == USB_DIR_OUT) { + return value; + } else { + /* Cast away the const, we are going to overwrite on purpose. */ + __le16 *temp = (__le16 *)&ctrl->wLength; + + *temp = cpu_to_le16(RBUF_SIZE); + w_length = RBUF_SIZE; + } + } + spin_lock (&dev->lock); dev->setup_abort = 0; if (dev->state == STATE_DEV_UNCONNECTED) { From 6eea4ace62fa6414432692ee44f0c0a3d541d97a Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 9 Dec 2021 19:02:15 +0100 Subject: [PATCH 137/172] USB: gadget: zero allocate endpoint 0 buffers commit 86ebbc11bb3f60908a51f3e41a17e3f477c2eaa3 upstream. Under some conditions, USB gadget devices can show allocated buffer contents to a host. Fix this up by zero-allocating them so that any extra data will all just be zeros. Reported-by: Szymon Heidrich Tested-by: Szymon Heidrich Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/composite.c | 2 +- drivers/usb/gadget/legacy/dbgp.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 1ef7922b57b6..284eea9f6e4d 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -2221,7 +2221,7 @@ int composite_dev_prepare(struct usb_composite_driver *composite, if (!cdev->req) return -ENOMEM; - cdev->req->buf = kmalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL); + cdev->req->buf = kzalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL); if (!cdev->req->buf) goto fail; diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c index e567afcb2794..355bc7dab9d5 100644 --- a/drivers/usb/gadget/legacy/dbgp.c +++ b/drivers/usb/gadget/legacy/dbgp.c @@ -137,7 +137,7 @@ static int dbgp_enable_ep_req(struct usb_ep *ep) goto fail_1; } - req->buf = kmalloc(DBGP_REQ_LEN, GFP_KERNEL); + req->buf = kzalloc(DBGP_REQ_LEN, GFP_KERNEL); if (!req->buf) { err = -ENOMEM; stp = 2; From f5230fb9bf8eefbf5ed12a19b8bdb722aa7b21ec Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Tue, 7 Dec 2021 09:43:41 -0800 Subject: [PATCH 138/172] Revert "usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default" commit 6a97cee39d8f2ed4d6e35a09a302dae1d566db36 upstream. This reverts commit cefdd52fa0455c0555c30927386ee466a108b060. On sc7180-trogdor class devices with 'fw_devlink=permissive' and KASAN enabled, you'll see a Use-After-Free reported at bootup. The root of the problem is that dwc3_qcom_of_register_core() is adding a devm-allocated "tx-fifo-resize" property to its device tree node using of_add_property(). The issue is that of_add_property() makes a _permanent_ addition to the device tree that lasts until reboot. That means allocating memory for the property using "devm" managed memory is a terrible idea since that memory will be freed upon probe deferral or device unbinding. Let's revert the patch since the system is still functional without it. The fact that of_add_property() makes a permanent change is extra fodder for those folks who were aruging that the device tree isn't really the right way to pass information between parts of the driver. It is an exercise left to the reader to submit a patch re-adding the new feature in a way that makes everyone happier. Fixes: cefdd52fa045 ("usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default") Cc: stable Reviewed-by: Stephen Boyd Signed-off-by: Douglas Anderson Link: https://lore.kernel.org/r/20211207094327.1.Ie3cde3443039342e2963262a4c3ac36dc2c08b30@changeid Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-qcom.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 9abbd01028c5..3cb01cdd02c2 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -649,7 +649,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) struct dwc3_qcom *qcom = platform_get_drvdata(pdev); struct device_node *np = pdev->dev.of_node, *dwc3_np; struct device *dev = &pdev->dev; - struct property *prop; int ret; dwc3_np = of_get_compatible_child(np, "snps,dwc3"); @@ -658,20 +657,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) return -ENODEV; } - prop = devm_kzalloc(dev, sizeof(*prop), GFP_KERNEL); - if (!prop) { - ret = -ENOMEM; - dev_err(dev, "unable to allocate memory for property\n"); - goto node_put; - } - - prop->name = "tx-fifo-resize"; - ret = of_add_property(dwc3_np, prop); - if (ret) { - dev_err(dev, "unable to add property\n"); - goto node_put; - } - ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); From 0141f85b78a51363b1d89cee8910319f385d0af4 Mon Sep 17 00:00:00 2001 From: Pavel Hofman Date: Fri, 10 Dec 2021 09:52:18 +0100 Subject: [PATCH 139/172] usb: core: config: fix validation of wMaxPacketValue entries commit 1a3910c80966e4a76b25ce812f6bea0ef1b1d530 upstream. The checks performed by commit aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors") require that initial value of the maxp variable contains both maximum packet size bits (10..0) and multiple-transactions bits (12..11). However, the existing code assings only the maximum packet size bits. This patch assigns all bits of wMaxPacketSize to the variable. Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors") Cc: stable Acked-by: Alan Stern Signed-off-by: Pavel Hofman Link: https://lore.kernel.org/r/20211210085219.16796-1-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index b199eb65f378..74eb356c8767 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -406,7 +406,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, * the USB-2 spec requires such endpoints to have wMaxPacketSize = 0 * (see the end of section 5.6.3), so don't warn about them. */ - maxp = usb_endpoint_maxp(&endpoint->desc); + maxp = le16_to_cpu(endpoint->desc.wMaxPacketSize); if (maxp == 0 && !(usb_endpoint_xfer_isoc(d) && asnum == 0)) { dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid wMaxPacketSize 0\n", cfgno, inum, asnum, d->bEndpointAddress); From 47c14aceb290e8e9bffcce4171f3304dad628884 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Fri, 10 Dec 2021 16:17:34 +0200 Subject: [PATCH 140/172] xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending commit 811ae81320da53a5670c36970cefacca8519f90e upstream. When the xHCI is quirked with XHCI_RESET_ON_RESUME, runtime resume routine also resets the controller. This is bad for USB drivers without reset_resume callback, because there's no subsequent call of usb_dev_complete() -> usb_resume_complete() to force rebinding the driver to the device. For instance, btusb device stops working after xHCI controller is runtime resumed, if the controlled is quirked with XHCI_RESET_ON_RESUME. So always take XHCI_RESET_ON_RESUME into account to solve the issue. Cc: Signed-off-by: Kai-Heng Feng Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20211210141735.1384209-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 902f410874e8..af92a9f8ed67 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3934,7 +3934,6 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) struct xhci_slot_ctx *slot_ctx; int i, ret; -#ifndef CONFIG_USB_DEFAULT_PERSIST /* * We called pm_runtime_get_noresume when the device was attached. * Decrement the counter here to allow controller to runtime suspend @@ -3942,7 +3941,6 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) */ if (xhci->quirks & XHCI_RESET_ON_RESUME) pm_runtime_put_noidle(hcd->self.controller); -#endif ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__); /* If the host is halted due to driver unload, we still need to free the @@ -4094,14 +4092,12 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) xhci_debugfs_create_slot(xhci, slot_id); -#ifndef CONFIG_USB_DEFAULT_PERSIST /* * If resetting upon resume, we can't put the controller into runtime * suspend if there is a device attached. */ if (xhci->quirks & XHCI_RESET_ON_RESUME) pm_runtime_get_noresume(hcd->self.controller); -#endif /* Is this a LS or FS device under a HS hub? */ /* Hub or peripherial? */ From d861bc26fe68d6fc61c2b5ff31128805ef115df6 Mon Sep 17 00:00:00 2001 From: Pavel Hofman Date: Fri, 10 Dec 2021 09:52:19 +0100 Subject: [PATCH 141/172] usb: core: config: using bit mask instead of individual bits commit ca5737396927afd4d57b133fd2874bbcf3421cdb upstream. Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for extracting multiple-transactions bits from wMaxPacketSize value. Acked-by: Alan Stern Signed-off-by: Pavel Hofman Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/config.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 74eb356c8767..00e28456e4cc 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -422,9 +422,9 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, maxpacket_maxes = full_speed_maxpacket_maxes; break; case USB_SPEED_HIGH: - /* Bits 12..11 are allowed only for HS periodic endpoints */ + /* Multiple-transactions bits are allowed only for HS periodic endpoints */ if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) { - i = maxp & (BIT(12) | BIT(11)); + i = maxp & USB_EP_MAXP_MULT_MASK; maxp &= ~i; } fallthrough; From 02d5a2a48bb44e7404b794df87e57588b2fd604e Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Fri, 10 Dec 2021 16:17:35 +0200 Subject: [PATCH 142/172] xhci: avoid race between disable slot command and host runtime suspend commit 7faac1953ed1f658f719cdf7bb7303fa5eef822c upstream. Make xhci_disable_slot() synchronous, thus ensuring it, and xhci_free_dev() calling it return after xHC controller completes the disable slot command. Otherwise the roothub and xHC host may runtime suspend, and clear the command ring while the disable slot command is being processed. This causes a command completion mismatch as the completion event can't be mapped to the correct command. Command ring gets out of sync and commands time out. Driver finally assumes host is unresponsive and bails out. usb 2-4: USB disconnect, device number 10 xhci_hcd 0000:00:0d.0: ERROR mismatched command completion event ... xhci_hcd 0000:00:0d.0: xHCI host controller not responding, assume dead xhci_hcd 0000:00:0d.0: HC died; cleaning up Cc: Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20211210141735.1384209-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-hub.c | 1 + drivers/usb/host/xhci-ring.c | 1 - drivers/usb/host/xhci.c | 22 +++++++++++++++------- 3 files changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index af946c42b6f0..df3522dab31b 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -717,6 +717,7 @@ static int xhci_enter_test_mode(struct xhci_hcd *xhci, continue; retval = xhci_disable_slot(xhci, i); + xhci_free_virt_device(xhci, i); if (retval) xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n", i, retval); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index eaa49aef2935..d0b6806275e0 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1525,7 +1525,6 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id) if (xhci->quirks & XHCI_EP_LIMIT_QUIRK) /* Delete default control endpoint resources */ xhci_free_device_endpoint_resources(xhci, virt_dev, true); - xhci_free_virt_device(xhci, slot_id); } static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index af92a9f8ed67..f5b1bcc875de 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3959,9 +3959,8 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) del_timer_sync(&virt_dev->eps[i].stop_cmd_timer); } virt_dev->udev = NULL; - ret = xhci_disable_slot(xhci, udev->slot_id); - if (ret) - xhci_free_virt_device(xhci, udev->slot_id); + xhci_disable_slot(xhci, udev->slot_id); + xhci_free_virt_device(xhci, udev->slot_id); } int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) @@ -3971,7 +3970,7 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) u32 state; int ret = 0; - command = xhci_alloc_command(xhci, false, GFP_KERNEL); + command = xhci_alloc_command(xhci, true, GFP_KERNEL); if (!command) return -ENOMEM; @@ -3996,6 +3995,15 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) } xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); + + wait_for_completion(command->completion); + + if (command->status != COMP_SUCCESS) + xhci_warn(xhci, "Unsuccessful disable slot %u command, status %d\n", + slot_id, command->status); + + xhci_free_command(xhci, command); + return ret; } @@ -4104,9 +4112,8 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) return 1; disable_slot: - ret = xhci_disable_slot(xhci, udev->slot_id); - if (ret) - xhci_free_virt_device(xhci, udev->slot_id); + xhci_disable_slot(xhci, udev->slot_id); + xhci_free_virt_device(xhci, udev->slot_id); return 0; } @@ -4236,6 +4243,7 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, mutex_unlock(&xhci->mutex); ret = xhci_disable_slot(xhci, udev->slot_id); + xhci_free_virt_device(xhci, udev->slot_id); if (!ret) xhci_alloc_dev(hcd, udev); kfree(command->completion); From 7d2a35d99700b8ff4b84248ad82171a843280c9b Mon Sep 17 00:00:00 2001 From: Kister Genesis Jimenez Date: Mon, 15 Nov 2021 11:41:47 +0100 Subject: [PATCH 143/172] iio: gyro: adxrs290: fix data signedness MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit fde272e78e004a45c7e4976876277d7e6a5a0ede upstream. Properly sign-extend the rate and temperature data. Fixes: 2c8920fff1457 ("iio: gyro: Add driver support for ADXRS290") Signed-off-by: Kister Genesis Jimenez Signed-off-by: Nuno Sá Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20211115104147.18669-1-nuno.sa@analog.com Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/gyro/adxrs290.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c index 3e0734ddafe3..600e9725da78 100644 --- a/drivers/iio/gyro/adxrs290.c +++ b/drivers/iio/gyro/adxrs290.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -124,7 +125,7 @@ static int adxrs290_get_rate_data(struct iio_dev *indio_dev, const u8 cmd, int * goto err_unlock; } - *val = temp; + *val = sign_extend32(temp, 15); err_unlock: mutex_unlock(&st->lock); @@ -146,7 +147,7 @@ static int adxrs290_get_temp_data(struct iio_dev *indio_dev, int *val) } /* extract lower 12 bits temperature reading */ - *val = temp & 0x0FFF; + *val = sign_extend32(temp, 11); err_unlock: mutex_unlock(&st->lock); From 2db8ad169cc8fcc09a4608edfcc09e93e9360b0d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 24 Oct 2021 11:27:00 +0200 Subject: [PATCH 144/172] iio: trigger: Fix reference counting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit a827a4984664308f13599a0b26c77018176d0c7c upstream. In viio_trigger_alloc() device_initialize() is used to set the initial reference count of the trigger to 1. Then another get_device() is called on trigger. This sets the reference count to 2 before the trigger is returned. iio_trigger_free(), which is the matching API to viio_trigger_alloc(), calls put_device() which decreases the reference count by 1. But the second reference count acquired in viio_trigger_alloc() is never dropped. As a result the iio_trigger_release() function is never called and the memory associated with the trigger is never freed. Since there is no reason for the trigger to start its lifetime with two reference counts just remove the extra get_device() in viio_trigger_alloc(). Fixes: 5f9c035cae18 ("staging:iio:triggers. Add a reference get to the core for triggers.") Signed-off-by: Lars-Peter Clausen Acked-by: Nuno Sá Link: https://lore.kernel.org/r/20211024092700.6844-2-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/industrialio-trigger.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c index b23caa2f2aa1..93990ff1dfe3 100644 --- a/drivers/iio/industrialio-trigger.c +++ b/drivers/iio/industrialio-trigger.c @@ -556,7 +556,6 @@ struct iio_trigger *viio_trigger_alloc(struct device *parent, irq_modify_status(trig->subirq_base + i, IRQ_NOREQUEST | IRQ_NOAUTOEN, IRQ_NOPROBE); } - get_device(&trig->dev); return trig; From 111d5b61fbd786f0cdb1177e40fd07205f24616d Mon Sep 17 00:00:00 2001 From: Alyssa Ross Date: Thu, 25 Nov 2021 18:28:48 +0000 Subject: [PATCH 145/172] iio: trigger: stm32-timer: fix MODULE_ALIAS commit 893621e0606747c5bbefcaf2794d12c7aa6212b7 upstream. modprobe can't handle spaces in aliases. Fixes: 93fbe91b5521 ("iio: Add STM32 timer trigger driver") Signed-off-by: Alyssa Ross Link: https://lore.kernel.org/r/20211125182850.2645424-1-hi@alyssa.is Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/trigger/stm32-timer-trigger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c index 33083877cd19..4353b749ecef 100644 --- a/drivers/iio/trigger/stm32-timer-trigger.c +++ b/drivers/iio/trigger/stm32-timer-trigger.c @@ -912,6 +912,6 @@ static struct platform_driver stm32_timer_trigger_driver = { }; module_platform_driver(stm32_timer_trigger_driver); -MODULE_ALIAS("platform: stm32-timer-trigger"); +MODULE_ALIAS("platform:stm32-timer-trigger"); MODULE_DESCRIPTION("STMicroelectronics STM32 Timer Trigger driver"); MODULE_LICENSE("GPL v2"); From 00d3c14338b56b5219aaee1f172c16e0f798afb5 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 24 Oct 2021 19:12:51 +0200 Subject: [PATCH 146/172] iio: stk3310: Don't return error code in interrupt handler commit 8e1eeca5afa7ba84d885987165dbdc5decf15413 upstream. Interrupt handlers must return one of the irqreturn_t values. Returning a error code is not supported. The stk3310 event interrupt handler returns an error code when reading the flags register fails. Fix the implementation to always return an irqreturn_t value. Fixes: 3dd477acbdd1 ("iio: light: Add threshold interrupt support for STK3310") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211024171251.22896-3-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/light/stk3310.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c index 07e91846307c..fc63856ed54d 100644 --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -546,9 +546,8 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private) mutex_lock(&data->lock); ret = regmap_field_read(data->reg_flag_nf, &dir); if (ret < 0) { - dev_err(&data->client->dev, "register read failed\n"); - mutex_unlock(&data->lock); - return ret; + dev_err(&data->client->dev, "register read failed: %d\n", ret); + goto out; } event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1, IIO_EV_TYPE_THRESH, @@ -560,6 +559,7 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private) ret = regmap_field_write(data->reg_flag_psint, 0); if (ret < 0) dev_err(&data->client->dev, "failed to reset interrupts\n"); +out: mutex_unlock(&data->lock); return IRQ_HANDLED; From c43517071dfc9fce34f8f69dbb98a86017f6b739 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 24 Oct 2021 11:26:59 +0200 Subject: [PATCH 147/172] iio: mma8452: Fix trigger reference couting commit cd0082235783f814241a1c9483fb89e405f4f892 upstream. The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call `iio_trigger_put()` to drop the reference count by 1. Without the matching `iio_trigger_get()` in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs. Fix this by getting a reference to the trigger before assigning it to the IIO device. Fixes: ae6d9ce05691 ("iio: mma8452: Add support for interrupt driven triggers.") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211024092700.6844-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/accel/mma8452.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 715b8138fb71..09c7f10fefb6 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1470,7 +1470,7 @@ static int mma8452_trigger_setup(struct iio_dev *indio_dev) if (ret) return ret; - indio_dev->trig = trig; + indio_dev->trig = iio_trigger_get(trig); return 0; } From 5df9c2c0e4b410f24aabdd8fc4d61ab68eecbc60 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 24 Oct 2021 19:12:49 +0200 Subject: [PATCH 148/172] iio: ltr501: Don't return error code in trigger handler commit ef9d67fa72c1b149a420587e435a3e888bdbf74f upstream. IIO trigger handlers need to return one of the irqreturn_t values. Returning an error code is not supported. The ltr501 interrupt handler gets this right for most error paths, but there is one case where it returns the error code. In addition for this particular case the trigger handler does not call `iio_trigger_notify_done()`. Which when not done keeps the triggered disabled forever. Modify the code so that the function returns a valid irqreturn_t value as well as calling `iio_trigger_notify_done()` on all exit paths. Fixes: 2690be905123 ("iio: Add Lite-On ltr501 ambient light / proximity sensor driver") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211024171251.22896-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/light/ltr501.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c index 1830221da48d..f0bd0ad34f22 100644 --- a/drivers/iio/light/ltr501.c +++ b/drivers/iio/light/ltr501.c @@ -1273,7 +1273,7 @@ static irqreturn_t ltr501_trigger_handler(int irq, void *p) ret = regmap_bulk_read(data->regmap, LTR501_ALS_DATA1, als_buf, sizeof(als_buf)); if (ret < 0) - return ret; + goto done; if (test_bit(0, indio_dev->active_scan_mask)) scan.channels[j++] = le16_to_cpu(als_buf[1]); if (test_bit(1, indio_dev->active_scan_mask)) From e4b600ac98ca65f0c49be7f4f914cfb4b876e7a3 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 24 Oct 2021 19:12:50 +0200 Subject: [PATCH 149/172] iio: kxsd9: Don't return error code in trigger handler commit 45febe0d63917ee908198c5be08511c64ee1790a upstream. IIO trigger handlers need to return one of the irqreturn_t values. Returning an error code is not supported. The kxsd9 interrupt handler returns an error code if reading the data registers fails. In addition when exiting due to an error the trigger handler does not call `iio_trigger_notify_done()`. Which when not done keeps the triggered disabled forever. Modify the code so that the function returns a valid irqreturn_t value as well as calling `iio_trigger_notify_done()` on all exit paths. Since we can't return the error code make sure to at least log it as part of the error message. Fixes: 0427a106a98a ("iio: accel: kxsd9: Add triggered buffer handling") Signed-off-by: Lars-Peter Clausen Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20211024171251.22896-2-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/accel/kxsd9.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c index bf7ed9e7d00f..e56ecc075014 100644 --- a/drivers/iio/accel/kxsd9.c +++ b/drivers/iio/accel/kxsd9.c @@ -224,14 +224,14 @@ static irqreturn_t kxsd9_trigger_handler(int irq, void *p) hw_values.chan, sizeof(hw_values.chan)); if (ret) { - dev_err(st->dev, - "error reading data\n"); - return ret; + dev_err(st->dev, "error reading data: %d\n", ret); + goto out; } iio_push_to_buffers_with_timestamp(indio_dev, &hw_values, iio_get_time_ns(indio_dev)); +out: iio_trigger_notify_done(indio_dev->trig); return IRQ_HANDLED; From 363e1286cf817ae4b93c312bb9f4e7c3f6743d66 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 1 Nov 2021 15:40:54 +0100 Subject: [PATCH 150/172] iio: itg3200: Call iio_trigger_notify_done() on error commit 67fe29583e72b2103abb661bb58036e3c1f00277 upstream. IIO trigger handlers must call iio_trigger_notify_done() when done. This must be done even when an error occurred. Otherwise the trigger will be seen as busy indefinitely and the trigger handler will never be called again. The itg3200 driver neglects to call iio_trigger_notify_done() when there is an error reading the gyro data. Fix this by making sure that iio_trigger_notify_done() is included in the error exit path. Fixes: 9dbf091da080 ("iio: gyro: Add itg3200") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211101144055.13858-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/gyro/itg3200_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c index 04dd6a7969ea..4cfa0d439560 100644 --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -61,9 +61,9 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p) iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp); +error_ret: iio_trigger_notify_done(indio_dev->trig); -error_ret: return IRQ_HANDLED; } From 9b4e3b804c41f19c2b3ec68b0bdd4817ff212fac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Mon, 18 Oct 2021 13:37:31 +0200 Subject: [PATCH 151/172] iio: dln2-adc: Fix lockdep complaint MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 59f92868176f191eefde70d284bdfc1ed76a84bc upstream. When reading the voltage: $ cat /sys/bus/iio/devices/iio\:device0/in_voltage0_raw Lockdep complains: [ 153.910616] ====================================================== [ 153.916918] WARNING: possible circular locking dependency detected [ 153.923221] 5.14.0+ #5 Not tainted [ 153.926692] ------------------------------------------------------ [ 153.932992] cat/717 is trying to acquire lock: [ 153.937525] c2585358 (&indio_dev->mlock){+.+.}-{3:3}, at: iio_device_claim_direct_mode+0x28/0x44 [ 153.946541] but task is already holding lock: [ 153.952487] c2585860 (&dln2->mutex){+.+.}-{3:3}, at: dln2_adc_read_raw+0x94/0x2bc [dln2_adc] [ 153.961152] which lock already depends on the new lock. Fix this by not calling into the iio core underneath the dln2->mutex lock. Fixes: 7c0299e879dd ("iio: adc: Add support for DLN2 ADC") Cc: Jack Andersen Signed-off-by: Noralf Trønnes Link: https://lore.kernel.org/r/20211018113731.25723-1-noralf@tronnes.org Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/dln2-adc.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c index 16407664182c..6c67192946aa 100644 --- a/drivers/iio/adc/dln2-adc.c +++ b/drivers/iio/adc/dln2-adc.c @@ -248,7 +248,6 @@ static int dln2_adc_set_chan_period(struct dln2_adc *dln2, static int dln2_adc_read(struct dln2_adc *dln2, unsigned int channel) { int ret, i; - struct iio_dev *indio_dev = platform_get_drvdata(dln2->pdev); u16 conflict; __le16 value; int olen = sizeof(value); @@ -257,13 +256,9 @@ static int dln2_adc_read(struct dln2_adc *dln2, unsigned int channel) .chan = channel, }; - ret = iio_device_claim_direct_mode(indio_dev); - if (ret < 0) - return ret; - ret = dln2_adc_set_chan_enabled(dln2, channel, true); if (ret < 0) - goto release_direct; + return ret; ret = dln2_adc_set_port_enabled(dln2, true, &conflict); if (ret < 0) { @@ -300,8 +295,6 @@ disable_port: dln2_adc_set_port_enabled(dln2, false, NULL); disable_chan: dln2_adc_set_chan_enabled(dln2, channel, false); -release_direct: - iio_device_release_direct_mode(indio_dev); return ret; } @@ -337,10 +330,16 @@ static int dln2_adc_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: + ret = iio_device_claim_direct_mode(indio_dev); + if (ret < 0) + return ret; + mutex_lock(&dln2->mutex); ret = dln2_adc_read(dln2, chan->channel); mutex_unlock(&dln2->mutex); + iio_device_release_direct_mode(indio_dev); + if (ret < 0) return ret; From a862c731f7bc089cbee24145a1bad9b5b1eb001a Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 1 Nov 2021 14:30:43 +0100 Subject: [PATCH 152/172] iio: dln2: Check return value of devm_iio_trigger_register() commit 90751fb9f224e0e1555b49a8aa9e68f6537e4cec upstream. Registering a trigger can fail and the return value of devm_iio_trigger_register() must be checked. Otherwise undefined behavior can occur when the trigger is used. Fixes: 7c0299e879dd ("iio: adc: Add support for DLN2 ADC") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211101133043.6974-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/dln2-adc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c index 6c67192946aa..97d162a3cba4 100644 --- a/drivers/iio/adc/dln2-adc.c +++ b/drivers/iio/adc/dln2-adc.c @@ -655,7 +655,11 @@ static int dln2_adc_probe(struct platform_device *pdev) return -ENOMEM; } iio_trigger_set_drvdata(dln2->trig, dln2); - devm_iio_trigger_register(dev, dln2->trig); + ret = devm_iio_trigger_register(dev, dln2->trig); + if (ret) { + dev_err(dev, "failed to register trigger: %d\n", ret); + return ret; + } iio_trigger_set_immutable(indio_dev, dln2->trig); ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL, From 4071943a533c144f7d81bcd6de263cb85b78e80f Mon Sep 17 00:00:00 2001 From: Gwendal Grignou Date: Thu, 4 Nov 2021 01:24:08 -0700 Subject: [PATCH 153/172] iio: at91-sama5d2: Fix incorrect sign extension commit 652e7df485c6884d552085ae2c73efa6cfea3547 upstream. Use scan_type when processing raw data which also fixes that the sign extension was from the wrong bit. Use channel definition as root of trust and replace constant when reading elements directly using the raw sysfs attributes. Fixes: 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution") Signed-off-by: Gwendal Grignou Reviewed-by: Eugen Hristev Cc: Link: https://lore.kernel.org/r/20211104082413.3681212-9-gwendal@chromium.org Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/at91-sama5d2_adc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index ea5ca163d879..c4de706012e5 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -1377,7 +1377,8 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev, *val = st->conversion_value; ret = at91_adc_adjust_val_osr(st, val); if (chan->scan_type.sign == 's') - *val = sign_extend32(*val, 11); + *val = sign_extend32(*val, + chan->scan_type.realbits - 1); st->conversion_done = false; } From 41d241ad3e5558ddde568be78d0db7b4b644a72e Mon Sep 17 00:00:00 2001 From: Fabrice Gasnier Date: Fri, 22 Oct 2021 14:19:29 +0200 Subject: [PATCH 154/172] iio: adc: stm32: fix a current leak by resetting pcsel before disabling vdda commit f711f28e71e965c0d1141c830fa7131b41abbe75 upstream. Some I/Os are connected to ADC input channels, when the corresponding bit in PCSEL register are set on STM32H7 and STM32MP15. This is done in the prepare routine of stm32-adc driver. There are constraints here, as PCSEL shouldn't be set when VDDA supply is disabled. Enabling/disabling of VDDA supply in done via stm32-adc-core runtime PM routines (before/after ADC is enabled/disabled). Currently, PCSEL remains set when disabling ADC. Later on, PM runtime can disable the VDDA supply. This creates some conditions on I/Os that can start to leak current. So PCSEL needs to be cleared when disabling the ADC. Fixes: 95e339b6e85d ("iio: adc: stm32: add support for STM32H7") Signed-off-by: Fabrice Gasnier Reviewed-by: Olivier Moysan Link: https://lore.kernel.org/r/1634905169-23762-1-git-send-email-fabrice.gasnier@foss.st.com Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/stm32-adc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c index 5088de835bb1..e3e75413b49e 100644 --- a/drivers/iio/adc/stm32-adc.c +++ b/drivers/iio/adc/stm32-adc.c @@ -975,6 +975,7 @@ static void stm32h7_adc_unprepare(struct iio_dev *indio_dev) { struct stm32_adc *adc = iio_priv(indio_dev); + stm32_adc_writel(adc, STM32H7_ADC_PCSEL, 0); stm32h7_adc_disable(indio_dev); stm32h7_adc_enter_pwr_down(adc); } From b3a4c57a96135409d8b54ac17e65e7f0b0f62746 Mon Sep 17 00:00:00 2001 From: Evgeny Boger Date: Wed, 17 Nov 2021 00:37:46 +0300 Subject: [PATCH 155/172] iio: adc: axp20x_adc: fix charging current reporting on AXP22x commit 92beafb76a31bdc02649eb44e93a8e4f4cfcdbe8 upstream. Both the charging and discharging currents on AXP22x are stored as 12-bit integers, in accordance with the datasheet. It's also confirmed by vendor BSP (axp20x_adc.c:axp22_icharge_to_mA). The scale factor of 0.5 is never mentioned in datasheet, nor in the vendor source code. I think it was here to compensate for erroneous addition bit in register width. Tested on custom A40i+AXP221s board with external ammeter as a reference. Fixes: 0e34d5de961d ("iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs") Signed-off-by: Evgeny Boger Acked-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20211116213746.264378-1-boger@wirenboard.com Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/axp20x_adc.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c index 3e0c0233b431..df99f1365c39 100644 --- a/drivers/iio/adc/axp20x_adc.c +++ b/drivers/iio/adc/axp20x_adc.c @@ -251,19 +251,8 @@ static int axp22x_adc_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val) { struct axp20x_adc_iio *info = iio_priv(indio_dev); - int size; - /* - * N.B.: Unlike the Chinese datasheets tell, the charging current is - * stored on 12 bits, not 13 bits. Only discharging current is on 13 - * bits. - */ - if (chan->type == IIO_CURRENT && chan->channel == AXP22X_BATT_DISCHRG_I) - size = 13; - else - size = 12; - - *val = axp20x_read_variable_width(info->regmap, chan->address, size); + *val = axp20x_read_variable_width(info->regmap, chan->address, 12); if (*val < 0) return *val; @@ -386,9 +375,8 @@ static int axp22x_adc_scale(struct iio_chan_spec const *chan, int *val, return IIO_VAL_INT_PLUS_MICRO; case IIO_CURRENT: - *val = 0; - *val2 = 500000; - return IIO_VAL_INT_PLUS_MICRO; + *val = 1; + return IIO_VAL_INT; case IIO_TEMP: *val = 100; From 2906867da4ca3da11b7f52ff36897587b6b7ff65 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 1 Nov 2021 15:40:55 +0100 Subject: [PATCH 156/172] iio: ad7768-1: Call iio_trigger_notify_done() on error commit 6661146427cbbce6d1fe3dbb11ff1c487f55799a upstream. IIO trigger handlers must call iio_trigger_notify_done() when done. This must be done even when an error occurred. Otherwise the trigger will be seen as busy indefinitely and the trigger handler will never be called again. The ad7768-1 driver neglects to call iio_trigger_notify_done() when there is an error reading the converter data. Fix this by making sure that iio_trigger_notify_done() is included in the error exit path. Fixes: a5f8c7da3dbe ("iio: adc: Add AD7768-1 ADC basic support") Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20211101144055.13858-2-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/ad7768-1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c index 2c5c8a3672b2..aa42ba759fa1 100644 --- a/drivers/iio/adc/ad7768-1.c +++ b/drivers/iio/adc/ad7768-1.c @@ -480,8 +480,8 @@ static irqreturn_t ad7768_trigger_handler(int irq, void *p) iio_push_to_buffers_with_timestamp(indio_dev, &st->data.scan, iio_get_time_ns(indio_dev)); - iio_trigger_notify_done(indio_dev->trig); err_unlock: + iio_trigger_notify_done(indio_dev->trig); mutex_unlock(&st->lock); return IRQ_HANDLED; From 14508fe13b1c578b3d2ba574f1d48b351975860c Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Mon, 25 Oct 2021 20:41:59 +0800 Subject: [PATCH 157/172] iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove commit 70c9774e180d151abaab358108e3510a8e615215 upstream. When ACPI type is ACPI_SMO8500, the data->dready_trig will not be set, the memory allocated by iio_triggered_buffer_setup() will not be freed, and cause memory leak as follows: unreferenced object 0xffff888009551400 (size 512): comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (age 83.852s) hex dump (first 32 bytes): 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff ........ ....... backtrace: [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360 [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf] [<000000004b40c1f5>] iio_triggered_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer] [<000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013] Fix it by remove data->dready_trig condition in probe and remove. Reported-by: Hulk Robot Fixes: a25691c1f967 ("iio: accel: kxcjk1013: allow using an external trigger") Signed-off-by: Yang Yingliang Cc: Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20211025124159.2700301-1-yangyingliang@huawei.com Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/accel/kxcjk-1013.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index a51fdd3c9b5b..24c9387c2968 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -1595,8 +1595,7 @@ static int kxcjk1013_probe(struct i2c_client *client, return 0; err_buffer_cleanup: - if (data->dready_trig) - iio_triggered_buffer_cleanup(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); err_trigger_unregister: if (data->dready_trig) iio_trigger_unregister(data->dready_trig); @@ -1618,8 +1617,8 @@ static int kxcjk1013_remove(struct i2c_client *client) pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); + iio_triggered_buffer_cleanup(indio_dev); if (data->dready_trig) { - iio_triggered_buffer_cleanup(indio_dev); iio_trigger_unregister(data->dready_trig); iio_trigger_unregister(data->motion_trig); } From 990bbe3578414dca431ed5bfef07c7440e1ba013 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Fri, 26 Nov 2021 08:32:44 +0800 Subject: [PATCH 158/172] misc: rtsx: Avoid mangling IRQ during runtime PM commit 0edeb8992db8e7de9b8fe3164ace9a4356b17021 upstream. After commit 5b4258f6721f ("misc: rtsx: rts5249 support runtime PM"), when the rtsx controller is runtime suspended, bring CPUs offline and back online, the runtime resume of the controller will fail: [ 47.319391] smpboot: CPU 1 is now offline [ 47.414140] x86: Booting SMP configuration: [ 47.414147] smpboot: Booting Node 0 Processor 1 APIC 0x2 [ 47.571334] smpboot: CPU 2 is now offline [ 47.686055] smpboot: Booting Node 0 Processor 2 APIC 0x4 [ 47.808174] smpboot: CPU 3 is now offline [ 47.878146] smpboot: Booting Node 0 Processor 3 APIC 0x6 [ 48.003679] smpboot: CPU 4 is now offline [ 48.086187] smpboot: Booting Node 0 Processor 4 APIC 0x1 [ 48.239627] smpboot: CPU 5 is now offline [ 48.326059] smpboot: Booting Node 0 Processor 5 APIC 0x3 [ 48.472193] smpboot: CPU 6 is now offline [ 48.574181] smpboot: Booting Node 0 Processor 6 APIC 0x5 [ 48.743375] smpboot: CPU 7 is now offline [ 48.838047] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 48.965447] __common_interrupt: 1.35 No irq handler for vector [ 51.174065] mmc0: error -110 doing runtime resume [ 54.978088] I/O error, dev mmcblk0, sector 21479 op 0x1:(WRITE) flags 0x0 phys_seg 11 prio class 0 [ 54.978108] Buffer I/O error on dev mmcblk0p1, logical block 19431, lost async page write [ 54.978129] Buffer I/O error on dev mmcblk0p1, logical block 19432, lost async page write [ 54.978134] Buffer I/O error on dev mmcblk0p1, logical block 19433, lost async page write [ 54.978137] Buffer I/O error on dev mmcblk0p1, logical block 19434, lost async page write [ 54.978141] Buffer I/O error on dev mmcblk0p1, logical block 19435, lost async page write [ 54.978145] Buffer I/O error on dev mmcblk0p1, logical block 19436, lost async page write [ 54.978148] Buffer I/O error on dev mmcblk0p1, logical block 19437, lost async page write [ 54.978152] Buffer I/O error on dev mmcblk0p1, logical block 19438, lost async page write [ 54.978155] Buffer I/O error on dev mmcblk0p1, logical block 19439, lost async page write [ 54.978160] Buffer I/O error on dev mmcblk0p1, logical block 19440, lost async page write [ 54.978244] mmc0: card aaaa removed [ 54.978452] FAT-fs (mmcblk0p1): FAT read failed (blocknr 4257) There's interrupt immediately raised on rtsx_pci_write_register() in runtime resume routine, but the IRQ handler hasn't registered yet. So we can either move rtsx_pci_write_register() after rtsx_pci_acquire_irq(), or just stop mangling IRQ on runtime PM. Choose the latter to save some CPU cycles. Fixes: 5b4258f6721f ("misc: rtsx: rts5249 support runtime PM") Cc: stable Signed-off-by: Kai-Heng Feng BugLink: https://bugs.launchpad.net/bugs/1951784 Link: https://lore.kernel.org/r/20211126003246.1068770-1-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman --- drivers/misc/cardreader/rtsx_pcr.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c index baf83594a01d..5121edb0d9ef 100644 --- a/drivers/misc/cardreader/rtsx_pcr.c +++ b/drivers/misc/cardreader/rtsx_pcr.c @@ -1803,8 +1803,6 @@ static int rtsx_pci_runtime_suspend(struct device *device) mutex_lock(&pcr->pcr_mutex); rtsx_pci_power_off(pcr, HOST_ENTER_S3); - free_irq(pcr->irq, (void *)pcr); - mutex_unlock(&pcr->pcr_mutex); pcr->is_runtime_suspended = true; @@ -1825,8 +1823,6 @@ static int rtsx_pci_runtime_resume(struct device *device) mutex_lock(&pcr->pcr_mutex); rtsx_pci_write_register(pcr, HOST_SLEEP_STATE, 0x03, 0x00); - rtsx_pci_acquire_irq(pcr); - synchronize_irq(pcr->irq); if (pcr->ops->fetch_vendor_settings) pcr->ops->fetch_vendor_settings(pcr); From 5bff8dff8e21191c643720b7039da55371809ab7 Mon Sep 17 00:00:00 2001 From: Ralph Siemsen Date: Mon, 8 Nov 2021 13:16:27 -0500 Subject: [PATCH 159/172] nvmem: eeprom: at25: fix FRAM byte_len commit 9a626577398c24ecab63c0a684436c8928092367 upstream. Commit fd307a4ad332 ("nvmem: prepare basics for FRAM support") added support for FRAM devices such as the Cypress FM25V. During testing, it was found that the FRAM detects properly, however reads and writes fail. Upon further investigation, two problem were found in at25_probe() routine. 1) In the case of an FRAM device without platform data, eg. fram == true && spi->dev.platform_data == NULL the stack local variable "struct spi_eeprom chip" is not initialized fully, prior to being copied into at25->chip. The chip.flags field in particular can cause problems. 2) The byte_len of FRAM is computed from its ID register, and is stored into the stack local "struct spi_eeprom chip" structure. This happens after the same structure has been copied into at25->chip. As a result, at25->chip.byte_len does not contain the correct length of the device. In turn this can cause checks at beginning of at25_ee_read() to fail (or equally, it could allow reads beyond the end of the device length). Fix both of these issues by eliminating the on-stack struct spi_eeprom. Instead use the one inside at25_data structure, which starts of zeroed. Fixes: fd307a4ad332 ("nvmem: prepare basics for FRAM support") Cc: stable Reviewed-by: Arnd Bergmann Signed-off-by: Ralph Siemsen Link: https://lore.kernel.org/r/20211108181627.645638-1-ralph.siemsen@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/misc/eeprom/at25.c | 38 ++++++++++++++++++-------------------- 1 file changed, 18 insertions(+), 20 deletions(-) diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 632325474233..b38978a3b3ff 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -376,7 +376,6 @@ MODULE_DEVICE_TABLE(spi, at25_spi_ids); static int at25_probe(struct spi_device *spi) { struct at25_data *at25 = NULL; - struct spi_eeprom chip; int err; int sr; u8 id[FM25_ID_LEN]; @@ -389,15 +388,18 @@ static int at25_probe(struct spi_device *spi) if (match && !strcmp(match->compatible, "cypress,fm25")) is_fram = 1; + at25 = devm_kzalloc(&spi->dev, sizeof(struct at25_data), GFP_KERNEL); + if (!at25) + return -ENOMEM; + /* Chip description */ - if (!spi->dev.platform_data) { - if (!is_fram) { - err = at25_fw_to_chip(&spi->dev, &chip); - if (err) - return err; - } - } else - chip = *(struct spi_eeprom *)spi->dev.platform_data; + if (spi->dev.platform_data) { + memcpy(&at25->chip, spi->dev.platform_data, sizeof(at25->chip)); + } else if (!is_fram) { + err = at25_fw_to_chip(&spi->dev, &at25->chip); + if (err) + return err; + } /* Ping the chip ... the status register is pretty portable, * unlike probing manufacturer IDs. We do expect that system @@ -409,12 +411,7 @@ static int at25_probe(struct spi_device *spi) return -ENXIO; } - at25 = devm_kzalloc(&spi->dev, sizeof(struct at25_data), GFP_KERNEL); - if (!at25) - return -ENOMEM; - mutex_init(&at25->lock); - at25->chip = chip; at25->spi = spi; spi_set_drvdata(spi, at25); @@ -431,7 +428,7 @@ static int at25_probe(struct spi_device *spi) dev_err(&spi->dev, "Error: unsupported size (id %02x)\n", id[7]); return -ENODEV; } - chip.byte_len = int_pow(2, id[7] - 0x21 + 4) * 1024; + at25->chip.byte_len = int_pow(2, id[7] - 0x21 + 4) * 1024; if (at25->chip.byte_len > 64 * 1024) at25->chip.flags |= EE_ADDR3; @@ -464,7 +461,7 @@ static int at25_probe(struct spi_device *spi) at25->nvmem_config.type = is_fram ? NVMEM_TYPE_FRAM : NVMEM_TYPE_EEPROM; at25->nvmem_config.name = dev_name(&spi->dev); at25->nvmem_config.dev = &spi->dev; - at25->nvmem_config.read_only = chip.flags & EE_READONLY; + at25->nvmem_config.read_only = at25->chip.flags & EE_READONLY; at25->nvmem_config.root_only = true; at25->nvmem_config.owner = THIS_MODULE; at25->nvmem_config.compat = true; @@ -474,17 +471,18 @@ static int at25_probe(struct spi_device *spi) at25->nvmem_config.priv = at25; at25->nvmem_config.stride = 1; at25->nvmem_config.word_size = 1; - at25->nvmem_config.size = chip.byte_len; + at25->nvmem_config.size = at25->chip.byte_len; at25->nvmem = devm_nvmem_register(&spi->dev, &at25->nvmem_config); if (IS_ERR(at25->nvmem)) return PTR_ERR(at25->nvmem); dev_info(&spi->dev, "%d %s %s %s%s, pagesize %u\n", - (chip.byte_len < 1024) ? chip.byte_len : (chip.byte_len / 1024), - (chip.byte_len < 1024) ? "Byte" : "KByte", + (at25->chip.byte_len < 1024) ? + at25->chip.byte_len : (at25->chip.byte_len / 1024), + (at25->chip.byte_len < 1024) ? "Byte" : "KByte", at25->chip.name, is_fram ? "fram" : "eeprom", - (chip.flags & EE_READONLY) ? " (readonly)" : "", + (at25->chip.flags & EE_READONLY) ? " (readonly)" : "", at25->chip.page_size); return 0; } From 7f4b37c7a692dc9e80cc1f37bb903c759a3ed767 Mon Sep 17 00:00:00 2001 From: Slark Xiao Date: Fri, 26 Nov 2021 16:19:51 +0530 Subject: [PATCH 160/172] bus: mhi: pci_generic: Fix device recovery failed issue commit e2022cbec9c2606514c4edc4a760e3acb7419d8a upstream. For Foxconn T99W175 device(sdx55 platform) in some host platform, it would be unavailable once the host execute the err handler. After checking, it's caused by the delay time too short to get a successful reset. Please see my test evidence as bewlow(BTW, I add some extra test logs in function mhi_pci_reset_prepare and mhi_pci_reset_done): When MHI_POST_RESET_DELAY_MS equals to 500ms: Nov 4 14:30:03 jbd-ThinkEdge kernel: [ 146.222477] mhi mhi0: Device MHI is not in valid state Nov 4 14:30:03 jbd-ThinkEdge kernel: [ 146.222628] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_prepare reset Nov 4 14:30:03 jbd-ThinkEdge kernel: [ 146.222631] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_prepare mhi_soc_reset Nov 4 14:30:03 jbd-ThinkEdge kernel: [ 146.222632] mhi mhi0: mhi_soc_reset write soc to reset Nov 4 14:30:05 jbd-ThinkEdge kernel: [ 147.839993] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_done Nov 4 14:30:05 jbd-ThinkEdge kernel: [ 147.902063] mhi-pci-generic 0000:2d:00.0: reset failed When MHI_POST_RESET_DELAY_MS equals to 1000ms or 1500ms: Nov 4 19:07:26 jbd-ThinkEdge kernel: [ 157.067857] mhi mhi0: Device MHI is not in valid state Nov 4 19:07:26 jbd-ThinkEdge kernel: [ 157.068029] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_prepare reset Nov 4 19:07:26 jbd-ThinkEdge kernel: [ 157.068032] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_prepare mhi_soc_reset Nov 4 19:07:26 jbd-ThinkEdge kernel: [ 157.068034] mhi mhi0: mhi_soc_reset write soc to reset Nov 4 19:07:29 jbd-ThinkEdge kernel: [ 159.607006] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_done Nov 4 19:07:29 jbd-ThinkEdge kernel: [ 159.607152] mhi mhi0: Requested to power ON Nov 4 19:07:51 jbd-ThinkEdge kernel: [ 181.302872] mhi mhi0: Failed to reset MHI due to syserr state Nov 4 19:07:51 jbd-ThinkEdge kernel: [ 181.303011] mhi-pci-generic 0000:2d:00.0: failed to power up MHI controller When MHI_POST_RESET_DELAY_MS equals to 2000ms: Nov 4 17:51:08 jbd-ThinkEdge kernel: [ 147.180527] mhi mhi0: Failed to transition from PM state: Linkdown or Error Fatal Detect to: SYS ERROR Process Nov 4 17:51:08 jbd-ThinkEdge kernel: [ 147.180535] mhi mhi0: Device MHI is not in valid state Nov 4 17:51:08 jbd-ThinkEdge kernel: [ 147.180722] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_prepare reset Nov 4 17:51:08 jbd-ThinkEdge kernel: [ 147.180725] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_prepare mhi_soc_reset Nov 4 17:51:08 jbd-ThinkEdge kernel: [ 147.180727] mhi mhi0: mhi_soc_reset write soc to reset Nov 4 17:51:11 jbd-ThinkEdge kernel: [ 150.230787] mhi-pci-generic 0000:2d:00.0: mhi_pci_reset_done Nov 4 17:51:11 jbd-ThinkEdge kernel: [ 150.230928] mhi mhi0: Requested to power ON Nov 4 17:51:11 jbd-ThinkEdge kernel: [ 150.231173] mhi mhi0: Power on setup success Nov 4 17:51:14 jbd-ThinkEdge kernel: [ 153.254747] mhi mhi0: Wait for device to enter SBL or Mission mode I also tried big data like 3000, and it worked as well. 500ms may not be enough for all support mhi device. We shall increase it to 2000ms at least. Link: https://lore.kernel.org/r/20211108113127.3938-1-slark_xiao@163.com [mani: massaged commit message little bit, added Fixes tag and CCed stable] Fixes: 8ccc3279fcad ("mhi: pci_generic: Add support for reset") Cc: stable@vger.kernel.org Reviewed-by: Manivannan Sadhasivam Signed-off-by: Slark Xiao Signed-off-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20211126104951.35685-2-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/bus/mhi/pci_generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index 59a4896a8030..4c577a731709 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -20,7 +20,7 @@ #define MHI_PCI_DEFAULT_BAR_NUM 0 -#define MHI_POST_RESET_DELAY_MS 500 +#define MHI_POST_RESET_DELAY_MS 2000 #define HEALTH_CHECK_PERIOD (HZ * 2) From 47b355f25b55c98c63ed7346faa3e1613c895f7e Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Thu, 9 Dec 2021 18:46:33 +0530 Subject: [PATCH 161/172] bus: mhi: core: Add support for forced PM resume commit cab2d3fd6866e089b5c50db09dece131f85bfebd upstream. For whatever reason, some devices like QCA6390, WCN6855 using ath11k are not in M3 state during PM resume, but still functional. The mhi_pm_resume should then not fail in those cases, and let the higher level device specific stack continue resuming process. Add an API mhi_pm_resume_force(), to force resuming irrespective of the current MHI state. This fixes a regression with non functional ath11k WiFi after suspend/resume cycle on some machines. Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=214179 Link: https://lore.kernel.org/regressions/871r5p0x2u.fsf@codeaurora.org/ Fixes: 020d3b26c07a ("bus: mhi: Early MHI resume failure in non M3 state") Cc: stable@vger.kernel.org #5.13 Reported-by: Kalle Valo Reported-by: Pengyu Ma Tested-by: Kalle Valo Acked-by: Kalle Valo Signed-off-by: Loic Poulain [mani: Switched to API, added bug report, reported-by tags and CCed stable] Signed-off-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20211209131633.4168-1-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/bus/mhi/core/pm.c | 21 ++++++++++++++++++--- drivers/net/wireless/ath/ath11k/mhi.c | 6 +++++- include/linux/mhi.h | 13 +++++++++++++ 3 files changed, 36 insertions(+), 4 deletions(-) diff --git a/drivers/bus/mhi/core/pm.c b/drivers/bus/mhi/core/pm.c index fb99e3727155..547e6e769546 100644 --- a/drivers/bus/mhi/core/pm.c +++ b/drivers/bus/mhi/core/pm.c @@ -881,7 +881,7 @@ int mhi_pm_suspend(struct mhi_controller *mhi_cntrl) } EXPORT_SYMBOL_GPL(mhi_pm_suspend); -int mhi_pm_resume(struct mhi_controller *mhi_cntrl) +static int __mhi_pm_resume(struct mhi_controller *mhi_cntrl, bool force) { struct mhi_chan *itr, *tmp; struct device *dev = &mhi_cntrl->mhi_dev->dev; @@ -898,8 +898,12 @@ int mhi_pm_resume(struct mhi_controller *mhi_cntrl) if (MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state)) return -EIO; - if (mhi_get_mhi_state(mhi_cntrl) != MHI_STATE_M3) - return -EINVAL; + if (mhi_get_mhi_state(mhi_cntrl) != MHI_STATE_M3) { + dev_warn(dev, "Resuming from non M3 state (%s)\n", + TO_MHI_STATE_STR(mhi_get_mhi_state(mhi_cntrl))); + if (!force) + return -EINVAL; + } /* Notify clients about exiting LPM */ list_for_each_entry_safe(itr, tmp, &mhi_cntrl->lpm_chans, node) { @@ -940,8 +944,19 @@ int mhi_pm_resume(struct mhi_controller *mhi_cntrl) return 0; } + +int mhi_pm_resume(struct mhi_controller *mhi_cntrl) +{ + return __mhi_pm_resume(mhi_cntrl, false); +} EXPORT_SYMBOL_GPL(mhi_pm_resume); +int mhi_pm_resume_force(struct mhi_controller *mhi_cntrl) +{ + return __mhi_pm_resume(mhi_cntrl, true); +} +EXPORT_SYMBOL_GPL(mhi_pm_resume_force); + int __mhi_device_get_sync(struct mhi_controller *mhi_cntrl) { int ret; diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 26c7ae242db6..49c0b1ad40a0 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -533,7 +533,11 @@ static int ath11k_mhi_set_state(struct ath11k_pci *ab_pci, ret = mhi_pm_suspend(ab_pci->mhi_ctrl); break; case ATH11K_MHI_RESUME: - ret = mhi_pm_resume(ab_pci->mhi_ctrl); + /* Do force MHI resume as some devices like QCA6390, WCN6855 + * are not in M3 state but they are functional. So just ignore + * the MHI state while resuming. + */ + ret = mhi_pm_resume_force(ab_pci->mhi_ctrl); break; case ATH11K_MHI_TRIGGER_RDDM: ret = mhi_force_rddm_mode(ab_pci->mhi_ctrl); diff --git a/include/linux/mhi.h b/include/linux/mhi.h index 723985879035..a5cc4cdf9cc8 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -663,6 +663,19 @@ int mhi_pm_suspend(struct mhi_controller *mhi_cntrl); */ int mhi_pm_resume(struct mhi_controller *mhi_cntrl); +/** + * mhi_pm_resume_force - Force resume MHI from suspended state + * @mhi_cntrl: MHI controller + * + * Resume the device irrespective of its MHI state. As per the MHI spec, devices + * has to be in M3 state during resume. But some devices seem to be in a + * different MHI state other than M3 but they continue working fine if allowed. + * This API is intented to be used for such devices. + * + * Return: 0 if the resume succeeds, a negative error code otherwise + */ +int mhi_pm_resume_force(struct mhi_controller *mhi_cntrl); + /** * mhi_download_rddm_image - Download ramdump image from device for * debugging purpose. From e18f3e046ccd6fcae6d6c1c7f0d5c780bf105bb6 Mon Sep 17 00:00:00 2001 From: Kelly Devilliv Date: Mon, 1 Nov 2021 23:05:02 +0800 Subject: [PATCH 162/172] csky: fix typo of fpu config macro commit a0793fdad9a11a32bc6d21317c93c83f4aa82ebc upstream. Fix typo which will cause fpe and privilege exception error. Signed-off-by: Kelly Devilliv Cc: stable Signed-off-by: Guo Ren Signed-off-by: Greg Kroah-Hartman --- arch/csky/kernel/traps.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/csky/kernel/traps.c b/arch/csky/kernel/traps.c index e5fbf8653a21..2020af88b636 100644 --- a/arch/csky/kernel/traps.c +++ b/arch/csky/kernel/traps.c @@ -209,7 +209,7 @@ asmlinkage void do_trap_illinsn(struct pt_regs *regs) asmlinkage void do_trap_fpe(struct pt_regs *regs) { -#ifdef CONFIG_CPU_HAS_FP +#ifdef CONFIG_CPU_HAS_FPU return fpu_fpe(regs); #else do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc, @@ -219,7 +219,7 @@ asmlinkage void do_trap_fpe(struct pt_regs *regs) asmlinkage void do_trap_priv(struct pt_regs *regs) { -#ifdef CONFIG_CPU_HAS_FP +#ifdef CONFIG_CPU_HAS_FPU if (user_mode(regs) && fpu_libc_helper(regs)) return; #endif From f2675399eb2a0f5aa1493f6f5c83d38911cb99af Mon Sep 17 00:00:00 2001 From: Billy Tsai Date: Wed, 24 Nov 2021 17:43:48 +0800 Subject: [PATCH 163/172] irqchip/aspeed-scu: Replace update_bits with write_bits. commit 8958389681b929fcc7301e7dc5f0da12e4a256a0 upstream. The interrupt status bits are cleared by writing 1, we should force a write to clear the interrupt without checking if the value has changed. Fixes: 04f605906ff0 ("irqchip: Add Aspeed SCU interrupt controller") Signed-off-by: Billy Tsai Reviewed-by: Joel Stanley Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211124094348.11621-1-billy_tsai@aspeedtech.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/irqchip/irq-aspeed-scu-ic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-aspeed-scu-ic.c b/drivers/irqchip/irq-aspeed-scu-ic.c index f3c6855a4cef..18b77c3e6db4 100644 --- a/drivers/irqchip/irq-aspeed-scu-ic.c +++ b/drivers/irqchip/irq-aspeed-scu-ic.c @@ -76,8 +76,8 @@ static void aspeed_scu_ic_irq_handler(struct irq_desc *desc) generic_handle_domain_irq(scu_ic->irq_domain, bit - scu_ic->irq_shift); - regmap_update_bits(scu_ic->scu, scu_ic->reg, mask, - BIT(bit + ASPEED_SCU_IC_STATUS_SHIFT)); + regmap_write_bits(scu_ic->scu, scu_ic->reg, mask, + BIT(bit + ASPEED_SCU_IC_STATUS_SHIFT)); } chained_irq_exit(chip, desc); From 97912b97fd832b9be671ec5702571fc4360b1afe Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= Date: Thu, 25 Nov 2021 14:00:56 +0100 Subject: [PATCH 164/172] irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit ce20eff57361e72878a772ef08b5239d3ae102b6 upstream. IRQ domain alloc function should return zero on success. Non-zero value indicates failure. Signed-off-by: Pali Rohár Fixes: fcc392d501bd ("irqchip/armada-370-xp: Use the generic MSI infrastructure") Cc: stable@vger.kernel.org Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211125130057.26705-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/irqchip/irq-armada-370-xp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 53e0fb0562c1..2b82ebbc3f84 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -250,7 +250,7 @@ static int armada_370_xp_msi_alloc(struct irq_domain *domain, unsigned int virq, NULL, NULL); } - return hwirq; + return 0; } static void armada_370_xp_msi_free(struct irq_domain *domain, From d99d861ce3ef9b6acbcbbd60406bda2da34df91e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= Date: Thu, 25 Nov 2021 14:00:57 +0100 Subject: [PATCH 165/172] irqchip/armada-370-xp: Fix support for Multi-MSI interrupts MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit d0a553502efd545c1ce3fd08fc4d423f8e4ac3d6 upstream. irq-armada-370-xp driver already sets MSI_FLAG_MULTI_PCI_MSI flag into msi_domain_info structure. But allocated interrupt numbers for Multi-MSI needs to be properly aligned otherwise devices send MSI interrupt with wrong number. Fix this issue by using function bitmap_find_free_region() instead of bitmap_find_next_zero_area() to allocate aligned interrupt numbers. Signed-off-by: Pali Rohár Fixes: a71b9412c90c ("irqchip/armada-370-xp: Allow allocation of multiple MSIs") Cc: stable@vger.kernel.org Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211125130057.26705-2-pali@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/irqchip/irq-armada-370-xp.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 2b82ebbc3f84..c91ddb0cf144 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -232,17 +232,13 @@ static int armada_370_xp_msi_alloc(struct irq_domain *domain, unsigned int virq, int hwirq, i; mutex_lock(&msi_used_lock); - - hwirq = bitmap_find_next_zero_area(msi_used, PCI_MSI_DOORBELL_NR, - 0, nr_irqs, 0); - if (hwirq >= PCI_MSI_DOORBELL_NR) { - mutex_unlock(&msi_used_lock); - return -ENOSPC; - } - - bitmap_set(msi_used, hwirq, nr_irqs); + hwirq = bitmap_find_free_region(msi_used, PCI_MSI_DOORBELL_NR, + order_base_2(nr_irqs)); mutex_unlock(&msi_used_lock); + if (hwirq < 0) + return -ENOSPC; + for (i = 0; i < nr_irqs; i++) { irq_domain_set_info(domain, virq + i, hwirq + i, &armada_370_xp_msi_bottom_irq_chip, @@ -259,7 +255,7 @@ static void armada_370_xp_msi_free(struct irq_domain *domain, struct irq_data *d = irq_domain_get_irq_data(domain, virq); mutex_lock(&msi_used_lock); - bitmap_clear(msi_used, d->hwirq, nr_irqs); + bitmap_release_region(msi_used, d->hwirq, order_base_2(nr_irqs)); mutex_unlock(&msi_used_lock); } From 4a7c65506473dc1415e6eadcea16e53d12740f6b Mon Sep 17 00:00:00 2001 From: Xie Yongji Date: Mon, 13 Sep 2021 19:19:28 +0800 Subject: [PATCH 166/172] aio: Fix incorrect usage of eventfd_signal_allowed() commit 4b3749865374899e115aa8c48681709b086fe6d3 upstream. We should defer eventfd_signal() to the workqueue when eventfd_signal_allowed() return false rather than return true. Fixes: b542e383d8c0 ("eventfd: Make signal recursion protection a task bit") Signed-off-by: Xie Yongji Link: https://lore.kernel.org/r/20210913111928.98-1-xieyongji@bytedance.com Reviewed-by: Eric Biggers Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- fs/aio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/aio.c b/fs/aio.c index f7d47c9ff6de..1a78979663dc 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1761,7 +1761,7 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, list_del_init(&req->wait.entry); list_del(&iocb->ki_list); iocb->ki_res.res = mangle_poll(mask); - if (iocb->ki_eventfd && eventfd_signal_allowed()) { + if (iocb->ki_eventfd && !eventfd_signal_allowed()) { iocb = NULL; INIT_WORK(&req->work, aio_poll_put_work); schedule_work(&req->work); From 2d34992ebe9c5a59fcd182055b6baf418fb405b4 Mon Sep 17 00:00:00 2001 From: Wudi Wang Date: Wed, 8 Dec 2021 09:54:29 +0800 Subject: [PATCH 167/172] irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL commit b383a42ca523ce54bcbd63f7c8f3cf974abc9b9a upstream. INVALL CMD specifies that the ITS must ensure any caching associated with the interrupt collection defined by ICID is consistent with the LPI configuration tables held in memory for all Redistributors. SYNC is required to ensure that INVALL is executed. Currently, LPI configuration data may be inconsistent with that in the memory within a short period of time after the INVALL command is executed. Signed-off-by: Wudi Wang Signed-off-by: Shaokun Zhang Signed-off-by: Marc Zyngier Fixes: cc2d3216f53c ("irqchip: GICv3: ITS command queue") Link: https://lore.kernel.org/r/20211208015429.5007-1-zhangshaokun@hisilicon.com Signed-off-by: Greg Kroah-Hartman --- drivers/irqchip/irq-gic-v3-its.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index eb0882d15366..0cb584d9815b 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -742,7 +742,7 @@ static struct its_collection *its_build_invall_cmd(struct its_node *its, its_fixup_cmd(cmd); - return NULL; + return desc->its_invall_cmd.col; } static struct its_vpe *its_build_vinvall_cmd(struct its_node *its, From 62a8ee0502d8a4189b4f2f3e6e2f0840ef5d700c Mon Sep 17 00:00:00 2001 From: Vladimir Murzin Date: Wed, 1 Dec 2021 11:02:58 +0000 Subject: [PATCH 168/172] irqchip: nvic: Fix offset for Interrupt Priority Offsets commit c5e0cbe2858d278a27d5b3fe31890aea5be064c4 upstream. According to ARM(v7M) ARM Interrupt Priority Offsets located at 0xE000E400-0xE000E5EC, while 0xE000E300-0xE000E33C covers read-only Interrupt Active Bit Registers Fixes: 292ec080491d ("irqchip: Add support for ARMv7-M NVIC") Signed-off-by: Vladimir Murzin Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20211201110259.84857-1-vladimir.murzin@arm.com Signed-off-by: Greg Kroah-Hartman --- drivers/irqchip/irq-nvic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c index b31c4cff4d3a..599bb6fc5f0a 100644 --- a/drivers/irqchip/irq-nvic.c +++ b/drivers/irqchip/irq-nvic.c @@ -26,7 +26,7 @@ #define NVIC_ISER 0x000 #define NVIC_ICER 0x080 -#define NVIC_IPR 0x300 +#define NVIC_IPR 0x400 #define NVIC_MAX_BANKS 16 /* From ee6104661b461a18bb7910ec50d377bf26144661 Mon Sep 17 00:00:00 2001 From: Jeya R Date: Wed, 24 Nov 2021 22:01:21 +0530 Subject: [PATCH 169/172] misc: fastrpc: fix improper packet size calculation commit 3a1bf591e9a410f220b7405a142a47407394a1d5 upstream. The buffer list is sorted and this is not being considered while calculating packet size. This would lead to improper copy length calculation for non-dmaheap buffers which would eventually cause sending improper buffers to DSP. Fixes: c68cfb718c8f ("misc: fastrpc: Add support for context Invoke method") Reviewed-by: Srinivas Kandagatla Signed-off-by: Jeya R Link: https://lore.kernel.org/r/1637771481-4299-1-git-send-email-jeyr@codeaurora.org Signed-off-by: Greg Kroah-Hartman --- drivers/misc/fastrpc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index ad6ced454655..f3002653bd01 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -719,16 +719,18 @@ static int fastrpc_get_meta_size(struct fastrpc_invoke_ctx *ctx) static u64 fastrpc_get_payload_size(struct fastrpc_invoke_ctx *ctx, int metalen) { u64 size = 0; - int i; + int oix; size = ALIGN(metalen, FASTRPC_ALIGN); - for (i = 0; i < ctx->nscalars; i++) { + for (oix = 0; oix < ctx->nbufs; oix++) { + int i = ctx->olaps[oix].raix; + if (ctx->args[i].fd == 0 || ctx->args[i].fd == -1) { - if (ctx->olaps[i].offset == 0) + if (ctx->olaps[oix].offset == 0) size = ALIGN(size, FASTRPC_ALIGN); - size += (ctx->olaps[i].mend - ctx->olaps[i].mstart); + size += (ctx->olaps[oix].mend - ctx->olaps[oix].mstart); } } From 5475fcf0a1c453b5efe6277db5f4c6b651b774c0 Mon Sep 17 00:00:00 2001 From: Alexey Sheplyakov Date: Tue, 9 Nov 2021 19:34:02 +0400 Subject: [PATCH 170/172] clocksource/drivers/dw_apb_timer_of: Fix probe failure commit a663bd19114d79f0902e2490fc484e5a7419cdc2 upstream. The driver refuses to probe with -EINVAL since the commit 5d9814df0aec ("clocksource/drivers/dw_apb_timer_of: Add error handling if no clock available"). Before the driver used to probe successfully if either "clock-freq" or "clock-frequency" properties has been specified in the device tree. That commit changed if (A && B) panic("No clock nor clock-frequency property"); into if (!A && !B) return 0; That's a bug: the reverse of `A && B` is '!A || !B', not '!A && !B' Signed-off-by: Vadim V. Vlasov Signed-off-by: Alexey Sheplyakov Fixes: 5d9814df0aec56a6 ("clocksource/drivers/dw_apb_timer_of: Add error handling if no clock available"). Cc: Daniel Lezcano Cc: Dinh Nguyen Cc: Thomas Gleixner Cc: Vadim V. Vlasov Acked-by: Dinh Nguyen Link: https://lore.kernel.org/r/20211109153401.157491-1-asheplyakov@basealt.ru Signed-off-by: Daniel Lezcano Signed-off-by: Greg Kroah-Hartman --- drivers/clocksource/dw_apb_timer_of.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c index 3819ef5b7098..3245eb0c602d 100644 --- a/drivers/clocksource/dw_apb_timer_of.c +++ b/drivers/clocksource/dw_apb_timer_of.c @@ -47,7 +47,7 @@ static int __init timer_get_base_and_rate(struct device_node *np, pr_warn("pclk for %pOFn is present, but could not be activated\n", np); - if (!of_property_read_u32(np, "clock-freq", rate) && + if (!of_property_read_u32(np, "clock-freq", rate) || !of_property_read_u32(np, "clock-frequency", rate)) return 0; From c2bd1add2c3ecd496bfb8fb1f7440be16941e1a0 Mon Sep 17 00:00:00 2001 From: Maxim Mikityanskiy Date: Tue, 7 Dec 2021 10:15:21 +0200 Subject: [PATCH 171/172] bpf: Add selftests to cover packet access corner cases commit b560b21f71eb4ef9dfc7c8ec1d0e4d7f9aa54b51 upstream. This commit adds BPF verifier selftests that cover all corner cases by packet boundary checks. Specifically, 8-byte packet reads are tested at the beginning of data and at the beginning of data_meta, using all kinds of boundary checks (all comparison operators: <, >, <=, >=; both permutations of operands: data + length compared to end, end compared to data + length). For each case there are three tests: 1. Length is just enough for an 8-byte read. Length is either 7 or 8, depending on the comparison. 2. Length is increased by 1 - should still pass the verifier. These cases are useful, because they failed before commit 2fa7d94afc1a ("bpf: Fix the off-by-two error in range markings"). 3. Length is decreased by 1 - should be rejected by the verifier. Some existing tests are just renamed to avoid duplication. Signed-off-by: Maxim Mikityanskiy Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211207081521.41923-1-maximmi@nvidia.com Signed-off-by: Greg Kroah-Hartman --- .../bpf/verifier/xdp_direct_packet_access.c | 600 +++++++++++++++++- 1 file changed, 584 insertions(+), 16 deletions(-) diff --git a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c index de172a5b8754..b4ec228eb95d 100644 --- a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c +++ b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c @@ -35,7 +35,7 @@ .prog_type = BPF_PROG_TYPE_XDP, }, { - "XDP pkt read, pkt_data' > pkt_end, good access", + "XDP pkt read, pkt_data' > pkt_end, corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -87,6 +87,41 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_data' > pkt_end, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data' > pkt_end, corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_end > pkt_data', good access", .insns = { @@ -106,7 +141,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_end > pkt_data', bad access 1", + "XDP pkt read, pkt_end > pkt_data', corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -142,6 +177,42 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_end > pkt_data', corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_end > pkt_data', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_data' < pkt_end, good access", .insns = { @@ -161,7 +232,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data' < pkt_end, bad access 1", + "XDP pkt read, pkt_data' < pkt_end, corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -198,7 +269,43 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_end < pkt_data', good access", + "XDP pkt read, pkt_data' < pkt_end, corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data' < pkt_end, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_end < pkt_data', corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -250,6 +357,41 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_end < pkt_data', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_end < pkt_data', corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_data' >= pkt_end, good access", .insns = { @@ -268,7 +410,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data' >= pkt_end, bad access 1", + "XDP pkt read, pkt_data' >= pkt_end, corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -304,7 +446,41 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_end >= pkt_data', good access", + "XDP pkt read, pkt_data' >= pkt_end, corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data' >= pkt_end, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_end >= pkt_data', corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -359,7 +535,44 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data' <= pkt_end, good access", + "XDP pkt read, pkt_end >= pkt_data', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_end >= pkt_data', corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data' <= pkt_end, corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -413,6 +626,43 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_data' <= pkt_end, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data' <= pkt_end, corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_end <= pkt_data', good access", .insns = { @@ -431,7 +681,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_end <= pkt_data', bad access 1", + "XDP pkt read, pkt_end <= pkt_data', corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, @@ -467,7 +717,41 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_meta' > pkt_data, good access", + "XDP pkt read, pkt_end <= pkt_data', corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_end <= pkt_data', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct xdp_md, data_end)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_meta' > pkt_data, corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -519,6 +803,41 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_meta' > pkt_data, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_meta' > pkt_data, corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_data > pkt_meta', good access", .insns = { @@ -538,7 +857,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data > pkt_meta', bad access 1", + "XDP pkt read, pkt_data > pkt_meta', corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -574,6 +893,42 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_data > pkt_meta', corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data > pkt_meta', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_meta' < pkt_data, good access", .insns = { @@ -593,7 +948,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_meta' < pkt_data, bad access 1", + "XDP pkt read, pkt_meta' < pkt_data, corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -630,7 +985,43 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data < pkt_meta', good access", + "XDP pkt read, pkt_meta' < pkt_data, corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_meta' < pkt_data, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data < pkt_meta', corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -682,6 +1073,41 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_data < pkt_meta', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data < pkt_meta', corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_meta' >= pkt_data, good access", .insns = { @@ -700,7 +1126,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_meta' >= pkt_data, bad access 1", + "XDP pkt read, pkt_meta' >= pkt_data, corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -736,7 +1162,41 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data >= pkt_meta', good access", + "XDP pkt read, pkt_meta' >= pkt_data, corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_meta' >= pkt_data, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data >= pkt_meta', corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -791,7 +1251,44 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_meta' <= pkt_data, good access", + "XDP pkt read, pkt_data >= pkt_meta', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data >= pkt_meta', corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_meta' <= pkt_data, corner case, good access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -845,6 +1342,43 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_meta' <= pkt_data, corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9), + BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_meta' <= pkt_data, corner case -1, bad access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "R1 offset is outside of the packet", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, { "XDP pkt read, pkt_data <= pkt_meta', good access", .insns = { @@ -863,7 +1397,7 @@ .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { - "XDP pkt read, pkt_data <= pkt_meta', bad access 1", + "XDP pkt read, pkt_data <= pkt_meta', corner case -1, bad access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data_meta)), @@ -898,3 +1432,37 @@ .prog_type = BPF_PROG_TYPE_XDP, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, +{ + "XDP pkt read, pkt_data <= pkt_meta', corner case, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), + BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, +{ + "XDP pkt read, pkt_data <= pkt_meta', corner case +1, good access", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct xdp_md, data_meta)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), + BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_XDP, + .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, +}, From 43e577d7a2cb60ad478387155c9de352f152101e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 14 Dec 2021 10:57:23 +0100 Subject: [PATCH 172/172] Linux 5.15.8 Link: https://lore.kernel.org/r/20211213092945.091487407@linuxfoundation.org Tested-by: Fox Chen Tested-by: Linux Kernel Functional Testing Tested-by: Guenter Roeck Tested-by: Shuah Khan Tested-by: Florian Fainelli Tested-by: Rudi Heitbaum Signed-off-by: Greg Kroah-Hartman --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 2d85216b1493..72344b214bba 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 5 PATCHLEVEL = 15 -SUBLEVEL = 7 +SUBLEVEL = 8 EXTRAVERSION = NAME = Trick or Treat