Commit Graph

950968 Commits

Author SHA1 Message Date
Miaohe Lin
4718a471f1 netlink: remove duplicated nla_need_padding_for_64bit() check
The need for padding 64bit is implicitly checked by nla_align_64bit(), so
remove this explicit one.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-25 06:06:19 -07:00
Miaohe Lin
8b4510d76c net: gain ipv4 mtu when mtu is not locked
When mtu is locked, we should not obtain ipv4 mtu as we return immediately
in this case and leave acquired ipv4 mtu unused.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-25 06:04:39 -07:00
Madhuparna Bhowmik
6d6018fc30 drivers/dma/dma-jz4780: Fix race condition between probe and irq handler
In probe, IRQ is requested before zchan->id is initialized which can be
read in the irq handler. Hence, shift request irq after other initializations
complete.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200821034423.12713-1-madhuparnabhowmik10@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-25 16:45:17 +05:30
Gustavo Pimentel
05655541c9 dmaengine: dw-edma: Fix scatter-gather address calculation
Fix the source and destination physical address calculation of a
peripheral device on scatter-gather implementation.

This issue manifested during tests using a 64 bits architecture system.
The abnormal behavior wasn't visible before due to all previous tests
were done using 32 bits architecture system, that masked his effect.

Fixes: e63d79d1ff ("dmaengine: Add Synopsys eDMA IP core driver")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Link: https://lore.kernel.org/r/8d3ab7e2ba96563fe3495b32f60077fffb85307d.1597327623.git.gustavo.pimentel@synopsys.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-25 16:37:33 +05:30
Peter Ujfalusi
33ebffa105 dmaengine: ti: k3-udma: Fix the TR initialization for prep_slave_sg
The TR which needs to be initialized for the next sg entry is indexed by
tr_idx and not by the running i counter.

In case any sub element in the SG needs more than one TR, the code would
corrupt an already configured TR.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200824120108.9178-1-peter.ujfalusi@ti.com
Fixes: 6cf668a4ef ("dmaengine: ti: k3-udma: Use the TR counter helper for slave_sg and cyclic")
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-25 15:53:07 +05:30
Marek Szyprowski
0661cef675 dmaengine: pl330: Fix burst length if burst size is smaller than bus width
Move the burst len fixup after setting the generic value for it. This
finally enables the fixup introduced by commit 137bd11090 ("dmaengine:
pl330: Align DMA memcpy operations to MFIFO width"), which otherwise was
overwritten by the generic value.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 137bd11090 ("dmaengine: pl330: Align DMA memcpy operations to MFIFO width")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200825064617.16193-1-m.szyprowski@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-25 15:48:53 +05:30
Tiezhu Yang
eed8f88b10 Revert "ALSA: hda: Add support for Loongson 7A1000 controller"
This reverts commit 61eee4a7fc ("ALSA: hda: Add support for Loongson
7A1000 controller") to fix the following error on the Loongson LS7A
platform:

rcu: INFO: rcu_preempt self-detected stall on CPU
<SNIP>
NMI backtrace for cpu 0
CPU: 0 PID: 68 Comm: kworker/0:2 Not tainted 5.8.0+ #3
Hardware name:  , BIOS
Workqueue: events azx_probe_work [snd_hda_intel]
<SNIP>
Call Trace:
[<ffffffff80211a64>] show_stack+0x9c/0x130
[<ffffffff8065a740>] dump_stack+0xb0/0xf0
[<ffffffff80665774>] nmi_cpu_backtrace+0x134/0x140
[<ffffffff80665910>] nmi_trigger_cpumask_backtrace+0x190/0x200
[<ffffffff802b1abc>] rcu_dump_cpu_stacks+0x12c/0x190
[<ffffffff802b08cc>] rcu_sched_clock_irq+0xa2c/0xfc8
[<ffffffff802b91d4>] update_process_times+0x2c/0xb8
[<ffffffff802cad80>] tick_sched_timer+0x40/0xb8
[<ffffffff802ba5f0>] __hrtimer_run_queues+0x118/0x1d0
[<ffffffff802bab74>] hrtimer_interrupt+0x12c/0x2d8
[<ffffffff8021547c>] c0_compare_interrupt+0x74/0xa0
[<ffffffff80296bd0>] __handle_irq_event_percpu+0xa8/0x198
[<ffffffff80296cf0>] handle_irq_event_percpu+0x30/0x90
[<ffffffff8029d958>] handle_percpu_irq+0x88/0xb8
[<ffffffff80296124>] generic_handle_irq+0x44/0x60
[<ffffffff80b3cfd0>] do_IRQ+0x18/0x28
[<ffffffff8067ace4>] plat_irq_dispatch+0x64/0x100
[<ffffffff80209a20>] handle_int+0x140/0x14c
[<ffffffff802402e8>] irq_exit+0xf8/0x100

Because AZX_DRIVER_GENERIC can not work well for Loongson LS7A HDA
controller, it needs some workarounds which are not merged into the
upstream kernel at this time, so it should revert this patch now.

Fixes: 61eee4a7fc ("ALSA: hda: Add support for Loongson 7A1000 controller")
Cc: <stable@vger.kernel.org> # 5.9-rc1+
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1598348388-2518-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-08-25 12:02:34 +02:00
Paul Cercueil
821fc9e261 irqchip/ingenic: Leave parent IRQ unmasked on suspend
All the wakeup sources we possibly want will go through the interrupt
controller, so the parent IRQ must not be masked during suspend, or
there won't be any way to wake up the system.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200819180602.136969-1-paul@crapouillou.net
2020-08-25 10:59:29 +01:00
qiuguorui1
e579076ac0 irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
In the current code, when the eoi callback of the exti clears the pending
bit of the current interrupt, it will first read the values of fpr and
rpr, then logically OR the corresponding bit of the interrupt number,
and finally write back to fpr and rpr.

We found through experiments that if two exti interrupts,
we call them int1/int2, arrive almost at the same time. in our scenario,
the time difference is 30 microseconds, assuming int1 is triggered first.

there will be an extreme scenario: both int's pending bit are set to 1,
the irq handle of int1 is executed first, and eoi handle is then executed,
at this moment, all pending bits are cleared, but the int 2 has not
finally been reported to the cpu yet, which eventually lost int2.

According to stm32's TRM description about rpr and fpr: Writing a 1 to this
bit will trigger a rising edge event on event x, Writing 0 has no
effect.

Therefore, when clearing the pending bit, we only need to clear the
pending bit of the irq.

Fixes: 927abfc446 ("irqchip/stm32: Add stm32mp1 support with hierarchy domain")
Signed-off-by: qiuguorui1 <qiuguorui1@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org # v4.18+
Link: https://lore.kernel.org/r/20200820031629.15582-1-qiuguorui1@huawei.com
2020-08-25 10:57:05 +01:00
Marc Zyngier
a150dac5a8 irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
It has become obvious that switching a number of irqchip drivers
to being platform drivers without considering the platform was a
mistake. We have multiple reports of end-point drivers not
probing because the irqchip driver isn't there yet, breaking
the expectations of the users.

This patch reverts:

920ecb8c35 ("irqchip/mtk-cirq: Convert to a platform driver")
f97dbf48ca ("irqchip/mtk-sysirq: Convert to a platform driver")
5be57099d4 ("irqchip/qcom-pdc: Switch to using IRQCHIP_PLATFORM_DRIVER helper macros")
95bf9305d2 ("irqchip/qcom-pdc: Allow QCOM_PDC to be loadable as a permanent module")

and leave QCOM PDC, MTK sysrq and cirq drivers as built-in, special purpose
drivers for the time being until we have worked out a better solution.

Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reported-by: Frank Wunderlich <linux@fw-web.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/93debe6a0308b66d3f307af67ba7ec2c@kernel.org
2020-08-25 10:48:54 +01:00
Michal Simek
710d4d916e dt-bindings: mmc: Add missing description for clk_in/out_sd1
The commit a8fdb80f4d ("arm64: zynqmp: Add ZynqMP SDHCI compatible
string") added clock-output-names for both SDHCIs before DT binding yaml
conversion. But only clk_in/out_sd0 clock names have been covered by
DT binding which ends up with dt yaml checking warnings as:
From schema: .../Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml
... mmc@ff170000: clock-output-names:0: 'clk_out_sd0' was expected
... mmc@ff170000: clock-output-names:1: 'clk_in_sd0' was expected

Fixes: 16ecd8f33c ("dt-bindings: mmc: convert arasan sdhci bindings to yaml")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Manish Narani <manish.narani@xilinx.com>
Link: https://lore.kernel.org/r/aef586778921c93377ec2f31c86e151b6e93f6c7.1598257520.git.michal.simek@xilinx.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-08-25 11:28:07 +02:00
Tomi Valkeinen
7fd5b25499 drm/omap: fix incorrect lock state
After commit 92cc68e358 ("drm/vblank: Use
spin_(un)lock_irq() in drm_crtc_vblank_on()") omapdrm locking is broken:

WARNING: inconsistent lock state
5.8.0-rc2-00483-g92cc68e35863 #13 Tainted: G        W
--------------------------------
inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
swapper/0/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
ea98222c (&dev->event_lock#2){?.+.}-{2:2}, at: drm_handle_vblank+0x4c/0x520 [drm]
{HARDIRQ-ON-W} state was registered at:
  trace_hardirqs_on+0x9c/0x1ec
  _raw_spin_unlock_irq+0x20/0x58
  omap_crtc_atomic_enable+0x54/0xa0 [omapdrm]
  drm_atomic_helper_commit_modeset_enables+0x218/0x270 [drm_kms_helper]
  omap_atomic_commit_tail+0x48/0xc4 [omapdrm]
  commit_tail+0x9c/0x190 [drm_kms_helper]
  drm_atomic_helper_commit+0x154/0x188 [drm_kms_helper]
  drm_client_modeset_commit_atomic+0x228/0x268 [drm]
  drm_client_modeset_commit_locked+0x60/0x1d0 [drm]
  drm_client_modeset_commit+0x24/0x40 [drm]
  drm_fb_helper_restore_fbdev_mode_unlocked+0x54/0xa8 [drm_kms_helper]
  drm_fb_helper_set_par+0x2c/0x5c [drm_kms_helper]
  drm_fb_helper_hotplug_event.part.0+0xa0/0xbc [drm_kms_helper]
  drm_kms_helper_hotplug_event+0x24/0x30 [drm_kms_helper]
  output_poll_execute+0x1a8/0x1c0 [drm_kms_helper]
  process_one_work+0x268/0x800
  worker_thread+0x30/0x4e0
  kthread+0x164/0x190
  ret_from_fork+0x14/0x20

The reason for this is that omapdrm calls drm_crtc_vblank_on() while
holding event_lock taken with spin_lock_irq().

It is not clear why drm_crtc_vblank_on() and drm_crtc_vblank_get() are
called while holding event_lock. I don't see any problem with moving
those calls outside the lock, which is what this patch does.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200819103021.440288-1-tomi.valkeinen@ti.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-08-25 12:05:15 +03:00
Maarten Lankhorst
2d9ad4cfaf Merge tag 'v5.9-rc2' into drm-misc-fixes
Backmerge requested by Tomi for a fix to omap inconsistent
locking state issue, and because we need at least v5.9-rc2 now.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2020-08-25 11:00:02 +02:00
Mika Kuoppala
e5f10d6385 drm/i915: Fix cmd parser desc matching with masks
Our variety of defined gpu commands have the actual
command id field and possibly length and flags applied.

We did start to apply the mask during initialization of
the cmd descriptors but forgot to also apply it on comparisons.

Fix comparisons in order to properly deny access with
associated commands.

v2: fix lri with correct mask (Chris)

References: 926abff21a ("drm/i915/cmdparser: Ignore Length operands during command matching")
Reported-by: Nicolai Stange <nstange@suse.de>
Cc: stable@vger.kernel.org # v5.4+
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Chris Wilson <chris.p.wilson@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200817195926.12671-1-mika.kuoppala@linux.intel.com
(cherry picked from commit 3b4efa148d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-08-25 11:01:34 +03:00
Ray Jui
0204081128 i2c: iproc: Fix shifting 31 bits
Fix undefined behaviour in the iProc I2C driver by using 'BIT' marcro.

Reported-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
[wsa: in commit msg, don't say 'checkpatch' but name the issue]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-25 09:46:38 +02:00
Wolfram Sang
914a7b3563 i2c: rcar: in slave mode, clear NACK earlier
Currently, a NACK in slave mode is set/cleared when SCL is held low by
the IP core right before the bit is about to be pushed out. This is too
late for clearing and then a NACK from the previous byte is still used
for the current one. Now, let's clear the NACK right after we detected
the STOP condition following the NACK.

Fixes: de20d1857d ("i2c: rcar: add slave support")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-25 09:42:51 +02:00
Mohan Kumar
23d63a31d9 ALSA: hda/tegra: Program WAKEEN register for Tegra
The WAKEEN bits are used to indicate which bits in the
STATESTS register may cause wake event during the codec
state change request. Configure the WAKEEN register for
the Tegra to detect the wake events.

Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20200825052415.20626-3-mkumard@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-08-25 09:32:42 +02:00
Mohan Kumar
216116eae4 ALSA: hda: Fix 2 channel swapping for Tegra
The Tegra HDA codec HW implementation has an issue related to not
swapping the 2 channel Audio Sample Packet(ASP) channel mapping.
Whatever the FL and FR mapping specified the left channel always
comes out of left speaker and right channel on right speaker. So
add condition to disallow the swapping of FL,FR during the playback.

Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Acked-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20200825052415.20626-2-mkumard@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-08-25 09:32:06 +02:00
Tong Zhang
ee0761d1d8 ALSA: ca0106: fix error code handling
snd_ca0106_spi_write() returns 1 on error, snd_ca0106_pcm_power_dac()
is returning the error code directly, and the caller is expecting an
negative error code

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200824224541.1260307-1-ztong0001@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-08-25 09:27:49 +02:00
Andy Shevchenko
e4682b8a68 i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device()
We have no users of i2c_acpi_match_device() anymore and seems
will not have them in the future, thus remove dead code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-25 09:22:09 +02:00
Andy Shevchenko
e3cb82c6d6 i2c: core: Don't fail PRP0001 enumeration when no ID table exist
When commit c64ffff7a9 ("i2c: core: Allow empty id_table in ACPI case
as well") fixed the enumeration of I²C devices on ACPI enabled platforms
when driver has no ID table, it missed the PRP0001 support.

i2c_device_match() and i2c_acpi_match_device() differently match
driver against given device. Use acpi_driver_match_device(), that is used
in the former, in i2c_device_probe() and don't fail PRP0001 enumeration
when no ID table exist.

Fixes: c64ffff7a9 ("i2c: core: Allow empty id_table in ACPI case as well")
BugLink: https://stackoverflow.com/q/63519678/2511795
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-08-25 09:21:55 +02:00
Yonghong Song
0fcdfffe80 selftests/bpf: Enable tc verbose mode for test_sk_assign
Currently test_sk_assign failed verifier with llvm11/llvm12.
During debugging, I found the default verifier output is
truncated like below
  Verifier analysis:

  Skipped 2200 bytes, use 'verb' option for the full verbose log.
  [...]
  off=23,r=34,imm=0) R5=inv0 R6=ctx(id=0,off=0,imm=0) R7=pkt(id=0,off=0,r=34,imm=0) R10=fp0
  80: (0f) r7 += r2
  last_idx 80 first_idx 21
  regs=4 stack=0 before 78: (16) if w3 == 0x11 goto pc+1
when I am using "./test_progs -vv -t assign".

The reason is tc verbose mode is not enabled.

This patched enabled tc verbose mode and the output looks like below
  Verifier analysis:

  0: (bf) r6 = r1
  1: (b4) w0 = 2
  2: (61) r1 = *(u32 *)(r6 +80)
  3: (61) r7 = *(u32 *)(r6 +76)
  4: (bf) r2 = r7
  5: (07) r2 += 14
  6: (2d) if r2 > r1 goto pc+61
   R0_w=inv2 R1_w=pkt_end(id=0,off=0,imm=0) R2_w=pkt(id=0,off=14,r=14,imm=0)
  ...

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200824222807.100200-1-yhs@fb.com
2020-08-24 21:15:13 -07:00
Tobias Klauser
7787b6fc93 bpf, sysctl: Let bpf_stats_handler take a kernel pointer buffer
Commit 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
changed ctl_table.proc_handler to take a kernel pointer. Adjust the
signature of bpf_stats_handler to match ctl_table.proc_handler which
fixes the following sparse warning:

kernel/sysctl.c:226:49: warning: incorrect type in argument 3 (different address spaces)
kernel/sysctl.c:226:49:    expected void *
kernel/sysctl.c:226:49:    got void [noderef] __user *buffer
kernel/sysctl.c:2640:35: warning: incorrect type in initializer (incompatible argument 3 (different address spaces))
kernel/sysctl.c:2640:35:    expected int ( [usertype] *proc_handler )( ... )
kernel/sysctl.c:2640:35:    got int ( * )( ... )

Fixes: 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/bpf/20200824142047.22043-1-tklauser@distanz.ch
2020-08-24 21:11:40 -07:00
Jesper Dangaard Brouer
2b10af318a selftests/bpf: Fix test_progs-flavor run getting number of tests
Commit 643e7233aa ("selftests/bpf: Test_progs option for getting number of
tests") introduced ability to getting number of tests, which is targeted
towards scripting.  As demonstrate in the commit the number can be use as a
shell variable for further scripting.

The test_progs program support "flavor", which is detected by the binary
have a "-flavor" in the executable name. One example is test_progs-no_alu32,
which load bpf-progs compiled with disabled alu32, located in dir 'no_alu32/'.

The problem is that invoking a "flavor" binary prints to stdout e.g.:
 "Switching to flavor 'no_alu32' subdirectory..."
Thus, intermixing with the number of tests, making it unusable for scripting.

Fix the issue by only printing "flavor" info when verbose -v option is used.

Fixes: 643e7233aa ("selftests/bpf: Test_progs option for getting number of tests")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/159827024012.923543.7104106594870150597.stgit@firesoul
2020-08-24 21:09:24 -07:00
Yonghong Song
b474959d5a bpf: Fix a buffer out-of-bound access when filling raw_tp link_info
Commit f2e10bff16 ("bpf: Add support for BPF_OBJ_GET_INFO_BY_FD for bpf_link")
added link query for raw_tp. One of fields in link_info is to
fill a user buffer with tp_name. The Scurrent checking only
declares "ulen && !ubuf" as invalid. So "!ulen && ubuf" will be
valid. Later on, we do "copy_to_user(ubuf, tp_name, ulen - 1)" which
may overwrite user memory incorrectly.

This patch fixed the problem by disallowing "!ulen && ubuf" case as well.

Fixes: f2e10bff16 ("bpf: Add support for BPF_OBJ_GET_INFO_BY_FD for bpf_link")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200821191054.714731-1-yhs@fb.com
2020-08-24 21:03:07 -07:00
Daniel T. Lee
f0c328f8af samples: bpf: Refactor tracepoint tracing programs with libbpf
For the problem of increasing fragmentation of the bpf loader programs,
instead of using bpf_loader.o, which is used in samples/bpf, this
commit refactors the existing tracepoint tracing programs with libbbpf
bpf loader.

    - Adding a tracepoint event and attaching a bpf program to it was done
    through bpf_program_attach().
    - Instead of using the existing BPF MAP definition, MAP definition
    has been refactored with the new BTF-defined MAP format.

Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200823085334.9413-4-danieltimlee@gmail.com
2020-08-24 20:59:35 -07:00
Daniel T. Lee
3677d0a131 samples: bpf: Refactor kprobe tracing programs with libbpf
For the problem of increasing fragmentation of the bpf loader programs,
instead of using bpf_loader.o, which is used in samples/bpf, this
commit refactors the existing kprobe tracing programs with libbbpf
bpf loader.

    - For kprobe events pointing to system calls, the SYSCALL() macro in
    trace_common.h was used.
    - Adding a kprobe event and attaching a bpf program to it was done
    through bpf_program_attach().
    - Instead of using the existing BPF MAP definition, MAP definition
    has been refactored with the new BTF-defined MAP format.

Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200823085334.9413-3-danieltimlee@gmail.com
2020-08-24 20:59:35 -07:00
Daniel T. Lee
35a8b6dd33 samples: bpf: Cleanup bpf_load.o from Makefile
Since commit cc7f641d63 ("samples: bpf: Refactor BPF map performance
test with libbpf") has ommited the removal of bpf_load.o from Makefile,
this commit removes the bpf_load.o rule for targets where bpf_load.o is
not used.

Fixes: cc7f641d63 ("samples: bpf: Refactor BPF map performance test with libbpf")
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200823085334.9413-2-danieltimlee@gmail.com
2020-08-24 20:59:35 -07:00
Niklas Cassel
75d46c6d15 scsi: scsi_debug: Remove superfluous close zone in resp_open_zone()
resp_open_zone() always calls zbc_open_zone() with parameter explicit set
to true.

If zbc_open_zone() is called with parameter explicit set to true, and the
current zone state is implicit open, it will call zbc_close_zone() on the
zone before proceeding.

Therefore, there is no need for resp_open_zone() to call zbc_close_zone()
on an implicitly open zone before calling zbc_open_zone().

Remove superfluous close zone in resp_open_zone().

Link: https://lore.kernel.org/r/20200821130007.39938-1-niklas.cassel@wdc.com
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 23:02:18 -04:00
Dan Carpenter
38660389a7 scsi: libcxgbi: Fix a use after free in cxgbi_conn_xmit_pdu()
We accidentally move this logging printk after the free, but that leads to
a use after free.

Link: https://lore.kernel.org/r/20200824085933.GD208317@mwanda
Fixes: e33c248228 ("scsi: cxgb4i: Add support for iSCSI segmentation offload")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 23:00:57 -04:00
Ye Bin
f308a35f54 scsi: qedf: Fix null ptr reference in qedf_stag_change_work
Link: https://lore.kernel.org/r/20200824033436.45570-1-yebin10@huawei.com
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 22:58:38 -04:00
David S. Miller
079f921e9f Merge tag 'batadv-next-for-davem-20200824' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:

====================
This cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - Drop unused function batadv_hardif_remove_interfaces(),
   by Sven Eckelmann

 - delete duplicated words, by Randy Dunlap

 - Drop (even more) repeated words in comments, by Sven Eckelmann

 - Migrate to linux/prandom.h, by Sven Eckelmann
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:18:22 -07:00
David S. Miller
99408c422d Merge tag 'batadv-net-for-davem-20200824' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:

====================
Here are some batman-adv bugfixes:

 - Avoid uninitialized memory access when handling DHCP, by Sven Eckelmann

 - Fix check for own OGM in OGM receive handler, by Linus Luessing

 - Fix netif_rx access for non-interrupt context in BLA, by Jussi Kivilinna
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:16:56 -07:00
David S. Miller
64d123fc25 Merge branch 'Add-PTP-support-for-Octeontx2'
Subbaraya Sundeep says:

====================
Add PTP support for Octeontx2

This patchset adds PTP support for Octeontx2 platform.
PTP is an independent coprocessor block from which
CGX block fetches timestamp and prepends it to the
packet before sending to NIX block. Patches are as
follows:

Patch 1: Patch to enable/disable packet timstamping
         in CGX upon mailbox request. It also adjusts
         packet parser (NPC) for the 8 bytes timestamp
         appearing before the packet.

Patch 2: Patch adding PTP pci driver which configures
         the PTP block and hooks up to RVU AF driver.
         It also exposes a mailbox call to adjust PTP
         hardware clock.

Patch 3: Patch adding PTP clock driver for PF netdev.

v8:
 Added missing header file reported by kernel test robot
 in patch 2
v7:
 As per Jesse Brandeburg comments:
 Simplified functions in patch 1
 Replaced magic numbers with macros
 Added Copyrights
 Added code comments wherever required
 Modified commit description of patch 2
v6:
 Resent after net-next is open
v5:
 As suggested by David separated the fix (adding rtnl lock/unlock)
 and submitted to net.
 https://www.spinics.net/lists/netdev/msg669617.html
v4:
 Added rtnl_lock/unlock in otx2_reset to protect against
 network stack ndo_open and close calls
 Added NULL check after ptp_clock_register in otx2_ptp.c
v3:
 Fixed sparse error in otx2_txrx.c
 Removed static inlines in otx2_txrx.c
v2:
 Fixed kernel build robot reported error by
 adding timecounter.h to otx2_common.h
====================

Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:16:28 -07:00
Aleksey Makarov
c9c12d339d octeontx2-pf: Add support for PTP clock
This patch adds PTP clock and uses it in Octeontx2
network device. PTP clock uses mailbox calls to
access the hardware counter on the RVU side.

Co-developed-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Aleksey Makarov <amakarov@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:15:45 -07:00
Aleksey Makarov
4086f2a06a octeontx2-af: Add support for Marvell PTP coprocessor
Precision Timestamping block found on Octeontx2
platform is an independent coprocessor and has
internal PTP hardware clock. Once configured PTP
runs independently and when a packet arrives
CGX hardware block gets the current timestamp
from PTP block and forwards the packet to NIX
by prepending timestamp to the packet.
This patch adds the pci driver for PTP block.
The driver gets registered by AF driver and does
initial configuration and exposes a mailbox function to
read and adjust PTP hardware clock. The mailbox function
is called by AF consumers like netdev drivers or
userspace drivers. Since PTP being a single block
in platform this driver helps in accessing PTP
block by any AF consumer.

Co-developed-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Aleksey Makarov <amakarov@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:15:45 -07:00
Zyta Szpak
421572175b octeontx2-af: Support to enable/disable HW timestamping
Four new mbox messages ids and handler are added in order to
enable or disable timestamping procedure on tx and rx side.
Additionally when PTP is enabled, the packet parser must skip
over 8 bytes and start analyzing packet data there. To make NPC
profiles work seemlesly PTR_ADVANCE of IKPU is set so that
parsing can be done as before when all data pointers
are shifted by 8 bytes automatically.

Co-developed-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Zyta Szpak <zyta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:15:45 -07:00
Edward Cree
966b8266a4 sfc: fix boolreturn.cocci warning and rename function
check_fcs() was returning bool as 0/1, which was a sign that the sense
 of the function was unclear: false was good, which doesn't really match
 a name like 'check_$thing'.  So rename it to ef100_has_fcs_error(), and
 use proper booleans in the return statements.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:14:23 -07:00
Miaohe Lin
373c15c2e9 net: Use helper macro RT_TOS() in __icmp_send()
Use helper macro RT_TOS() to get tos in __icmp_send().

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:12:36 -07:00
Miaohe Lin
7551144978 net: Avoid access icmp_err_convert when icmp code is ICMP_FRAG_NEEDED
There is no need to fetch errno and fatal info from icmp_err_convert when
icmp code is ICMP_FRAG_NEEDED.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:11:43 -07:00
Sumera Priyadarsini
59ebb4305c net: ocelot: Add of_node_put() before return statement
Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node, however when control
is transferred from the middle of the loop, as in the case of
a return or break or goto, there is no decrement thus ultimately
resulting in a memory leak.

Fix a potential memory leak in felix.c by inserting of_node_put()
before the return statement.

Issue found with Coccinelle.

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:04:09 -07:00
Kurt Kanzenbach
4341b7d916 dt-bindings: net: dsa: Fix typo
Fix spelling mistake documenation -> documentation.

Fixes: 5a18bb14c0 ("dt-bindings: net: dsa: Let dsa.txt refer to dsa.yaml")
Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:03:29 -07:00
Dinghao Liu
15ac5cdafb firestream: Fix memleak in fs_open
When make_rate() fails, vcc should be freed just
like other error paths in fs_open().

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:02:43 -07:00
David S. Miller
0caeba3d3c Merge branch 'qed-introduce-devlink-health-support'
Igor Russkikh says:

====================
qed: introduce devlink health support

This is a followup implementation after series

https://patchwork.ozlabs.org/project/netdev/cover/20200514095727.1361-1-irusskikh@marvell.com/

This is an implementation of devlink health infrastructure.

With this we are now able to report HW errors to devlink, and it'll take
its own actions depending on user configuration to capture and store the
dump at the bad moment, and to request the driver to recover the device.

So far we do not differentiate global device failures or specific PCI
function failures. This means that some errors specific to one physical
function will affect an entire device. This is not yet fully designed
and verified, will followup in future.

Solution was verified with artificial HW errors generated, existing
tools for dump analysis could be used.

v7: comments from Jesse and Jakub
 - p2: extra edev check
 - p9: removed extra indents
v6: patch 4: changing serial to board.serial and fw to fw.app
v5: improved patch 4 description
v4:
 - commit message and other fixes after Jiri's comments
 - removed one patch (will send to net)
v3: fix uninit var usage in patch 11
v2: fix #include issue from kbuild test robot.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
adc100d098 qede: make driver reliable on unload after failures
In case recovery was not successful, netdev still should be
present. But we should clear cdev if something bad happens
on recovery.

We also check cdev for null on dev close. That could be a case
if recovery was not successful.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
c5c642c55e qed: align adjacent indent
Remove extra indent on some of adjacent declarations.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
27fed78737 qed: implement devlink dump
Gather and push out full device dump to devlink.
Device dump is the same as with `ethtool -d`, but now its generated
exactly at the moment bad thing happens.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
b228cb1602 qed*: make use of devlink recovery infrastructure
Remove forcible recovery trigger and put it as a normal devlink
callback.

This allows user to enable/disable it via

    devlink health set pci/0000:03:00.0 reporter fw_fatal auto_recover false

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
4f5a8db27e qed: use devlink logic to report errors
Use devlink_health_report to push error indications.
We implement this in qede via callback function to make it possible
to reuse the same for other drivers sitting on top of qed in future.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:33 -07:00
Igor Russkikh
9524067b9a qed: health reporter init deinit seq
Here we declare health reporter ops (empty for now)
and register these in qed probe and remove callbacks.

This way we get devlink attached to all kind of qed* PCI
device entities: networking or storage offload entity.

Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24 18:01:32 -07:00