commit 91ba11fb7d upstream.
Division is slow, so it shouldn't be done by the pixel generating code.
The driver supports only 2 or 4 bytes per pixel, so we can replace
division with a shift.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 542bb9788a upstream.
Allocations larger than PAGE_ALLOC_COSTLY_ORDER are unreliable and they
may fail anytime. This patch fixes the udl kms driver so that when a large
alloactions fails, it tries to do multiple smaller allocations.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 8456b99c16 upstream.
If we leave urbs around, it causes not only leak, but also memory
corruption. This patch fixes the function udl_free_urb_list, so that it
always waits for all urbs that are in progress.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f1ed3df20d upstream.
In many architectures loads may be reordered with older stores to
different locations. In the nvme driver the following two operations
could be reordered:
- Write shadow doorbell (dbbuf_db) into memory.
- Read EventIdx (dbbuf_ei) from memory.
This can result in a potential race condition between driver and VM host
processing requests (if given virtual NVMe controller has a support for
shadow doorbell). If that occurs, then the NVMe controller may decide to
wait for MMIO doorbell from guest operating system, and guest driver may
decide not to issue MMIO doorbell on any of subsequent commands.
This issue is purely timing-dependent one, so there is no easy way to
reproduce it. Currently the easiest known approach is to run "Oracle IO
Numbers" (orion) that is shipped with Oracle DB:
orion -run advanced -num_large 0 -size_small 8 -type rand -simulate \
concat -write 40 -duration 120 -matrix row -testname nvme_test
Where nvme_test is a .lun file that contains a list of NVMe block
devices to run test against. Limiting number of vCPUs assigned to given
VM instance seems to increase chances for this bug to occur. On test
environment with VM that got 4 NVMe drives and 1 vCPU assigned the
virtual NVMe controller hang could be observed within 10-20 minutes.
That correspond to about 400-500k IO operations processed (or about
100GB of IO read/writes).
Orion tool was used as a validation and set to run in a loop for 36
hours (equivalent of pushing 550M IO operations). No issues were
observed. That suggest that the patch fixes the issue.
Fixes: f9f38e3338 ("nvme: improve performance for virtual NVMe devices")
Signed-off-by: Michal Wnukowski <wnukowski@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
[hch: updated changelog and comment a bit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit d1e20222d5 upstream.
Currently we check if the number of context banks is not equal to
num_context_interrupts. However, there are booloaders such as, one
on sdm845 that reserves few context banks and thus kernel views
less than the total available context banks.
So, although the hardware definition in device tree would mention
the correct number of context interrupts, this number can be
greater than the number of context banks visible to smmu in kernel.
We should therefore error out only when the number of context banks
is greater than the available number of context interrupts.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Suggested-by: Tomasz Figa <tfiga@chromium.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
[will: drop useless printk]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit e95153b64d ]
Commands that are reset are returned with status
SAM_STAT_COMMAND_TERMINATED. PVSCSI currently returns DID_OK |
SAM_STAT_COMMAND_TERMINATED which fails the command. Instead, set hostbyte
to DID_RESET to allow upper layers to retry.
Tested by copying a large file between two pvscsi disks on same adapter
while performing a bus reset at 1-second intervals. Before fix, commands
sometimes fail with DID_OK. After fix, commands observed to fail with
DID_RESET.
Signed-off-by: Jim Gill <jgill@vmware.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 1550ec458e ]
When receiving a LOGO request we forget to clear the FC_RP_STARTED flag
before starting the rport delete routine.
As the started flag was not cleared, we're not deleting the rport but
waiting for a restart and thus are keeping the reference count of the rdata
object at 1.
This leads to the following kmemleak report:
unreferenced object 0xffff88006542aa00 (size 512):
comm "kworker/0:2", pid 24, jiffies 4294899222 (age 226.880s)
hex dump (first 32 bytes):
68 96 fe 65 00 88 ff ff 00 00 00 00 00 00 00 00 h..e............
01 00 00 00 08 00 00 00 02 c5 45 24 ac b8 00 10 ..........E$....
backtrace:
[<(____ptrval____)>] fcoe_ctlr_vn_add.isra.5+0x7f/0x770 [libfcoe]
[<(____ptrval____)>] fcoe_ctlr_vn_recv+0x12af/0x27f0 [libfcoe]
[<(____ptrval____)>] fcoe_ctlr_recv_work+0xd01/0x32f0 [libfcoe]
[<(____ptrval____)>] process_one_work+0x7ff/0x1420
[<(____ptrval____)>] worker_thread+0x87/0xef0
[<(____ptrval____)>] kthread+0x2db/0x390
[<(____ptrval____)>] ret_from_fork+0x35/0x40
[<(____ptrval____)>] 0xffffffffffffffff
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reported-by: ard <ard@kwaak.net>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 2d7d4fd35e ]
KASAN reports a use-after-free in fcoe_ctlr_els_send() when we're sending a
LOGO and have FIP debugging enabled. This is because we're first freeing
the skb and then printing the frame's DID. But the DID is a member of the
FC frame header which in turn is the skb's payload.
Exchange the debug print and kfree_skb() calls so we're not touching the
freed data.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ca876c7483 ]
On some systems using edge triggered ACPI Event Interrupts, the initial
state at boot is not setup by the firmware, instead relying on the edge
irq event handler running at least once to setup the initial state.
2 known examples of this are:
1) The Surface 3 has its _LID state controlled by an ACPI operation region
triggered by a GPIO event:
OperationRegion (GPOR, GeneralPurposeIo, Zero, One)
Field (GPOR, ByteAcc, NoLock, Preserve)
{
Connection (
GpioIo (Shared, PullNone, 0x0000, 0x0000, IoRestrictionNone,
"\\_SB.GPO0", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x004C
}
),
HELD, 1
}
Method (_E4C, 0, Serialized) // _Exx: Edge-Triggered GPE
{
If ((HELD == One))
{
^^LID.LIDB = One
}
Else
{
^^LID.LIDB = Zero
Notify (LID, 0x80) // Status Change
}
Notify (^^PCI0.SPI1.NTRG, One) // Device Check
}
Currently, the state of LIDB is wrong until the user actually closes or
open the cover. We need to trigger the GPIO event once to update the
internal ACPI state.
Coincidentally, this also enables the Surface 2 integrated HID sensor hub
which also requires an ACPI gpio operation region to start initialization.
2) Various Bay Trail based tablets come with an external USB mux and
TI T1210B USB phy to enable USB gadget mode. The mux is controlled by a
GPIO which is controlled by an edge triggered ACPI Event Interrupt which
monitors the micro-USB ID pin.
When the tablet is connected to a PC (or no cable is plugged in), the ID
pin is high and the tablet should be in gadget mode. But the GPIO
controlling the mux is initialized by the firmware so that the USB data
lines are muxed to the host controller.
This means that if the user wants to use gadget mode, the user needs to
first plug in a host-cable to force the ID pin low and then unplug it
and connect the tablet to a PC, to get the ACPI event handler to run and
switch the mux to device mode,
This commit fixes both by running the event-handler once on boot.
Note that the running of the event-handler is done from a late_initcall,
this is done because the handler AML code may rely on OperationRegions
registered by other builtin drivers. This avoids errors like these:
[ 0.133026] ACPI Error: No handler for Region [XSCG] ((____ptrval____)) [GenericSerialBus] (20180531/evregion-132)
[ 0.133036] ACPI Error: Region GenericSerialBus (ID=9) has no handler (20180531/exfldio-265)
[ 0.133046] ACPI Error: Method parse/execution failed \_SB.GPO2._E12, AE_NOT_EXIST (20180531/psparse-516)
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
[hdegoede: Document BYT USB mux reliance on initial trigger]
[hdegoede: Run event handler from a late_initcall, rather then immediately]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit afb41bb039 ]
Current value for a target abort error is 0x010, however, this value
should in fact be 0x002. As it stands, the range of error is 0..7 so
it is currently never being detected. This bug has been in the driver
since the early 2.6.12 days (or before).
Detected by CoverityScan, CID#744290 ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit cb5c656886 ]
In commit ab123fe071 ("enic: handle mtu change for vf properly")
ASSERT_RTNL() is added to _enic_change_mtu() to prevent it from being
called without rtnl held. enic_probe() calls enic_change_mtu()
without rtnl held. At this point netdev is not registered yet.
Remove call to enic_change_mtu and assign the mtu to netdev->mtu.
Fixes: ab123fe071 ("enic: handle mtu change for vf properly")
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ab123fe071 ]
When driver gets notification for mtu change, driver does not handle it for
all RQs. It handles only RQ[0].
Fix is to use enic_change_mtu() interface to change mtu for vf.
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ee614c8710 ]
Function nfp_flower_repr_get_type_and_port expects an enum nfp_repr_type
return value but, if the repr type is unknown, returns a value of type
enum nfp_flower_cmsg_port_type. This means that if FW encodes the port
ID in a way the driver does not understand instead of dropping the frame
driver may attribute it to a physical port (uplink) provided the port
number is less than physical port count.
Fix this and ensure a net_device of NULL is returned if the repr can not
be determined.
Fixes: 1025351a88 ("nfp: add flower app")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 7b94ea5051 ]
If an i2c topology has instances of nested muxes, then a lockdep splat
is produced when when i2c_parent_lock_bus() is called. Here is an
example:
============================================
WARNING: possible recursive locking detected
--------------------------------------------
insmod/68159 is trying to acquire lock:
(i2c_register_adapter#2){+.+.}, at: i2c_parent_lock_bus+0x32/0x50 [i2c_mux]
but task is already holding lock:
(i2c_register_adapter#2){+.+.}, at: i2c_parent_lock_bus+0x32/0x50 [i2c_mux]
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(i2c_register_adapter#2);
lock(i2c_register_adapter#2);
*** DEADLOCK ***
May be due to missing lock nesting notation
1 lock held by insmod/68159:
#0: (i2c_register_adapter#2){+.+.}, at: i2c_parent_lock_bus+0x32/0x50 [i2c_mux]
stack backtrace:
CPU: 13 PID: 68159 Comm: insmod Tainted: G O
Call Trace:
dump_stack+0x67/0x98
__lock_acquire+0x162e/0x1780
lock_acquire+0xba/0x200
rt_mutex_lock+0x44/0x60
i2c_parent_lock_bus+0x32/0x50 [i2c_mux]
i2c_parent_lock_bus+0x3e/0x50 [i2c_mux]
i2c_smbus_xfer+0xf0/0x700
i2c_smbus_read_byte+0x42/0x70
my2c_init+0xa2/0x1000 [my2c]
do_one_initcall+0x51/0x192
do_init_module+0x62/0x216
load_module+0x20f9/0x2b50
SYSC_init_module+0x19a/0x1c0
SyS_init_module+0xe/0x10
do_syscall_64+0x6c/0x1a0
entry_SYSCALL_64_after_hwframe+0x42/0xb7
Reported-by: John Sperbeck <jsperbeck@google.com>
Tested-by: John Sperbeck <jsperbeck@google.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Deepa Dinamani <deepadinamani@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Chang <dpf@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Link: http://lkml.kernel.org/r/20180720083914.1950-3-peda@axentia.se
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ae2dcb28c2 ]
Rx hash/filter table configuration uses rss_conf_obj to configure filters
in the hardware. This object is initialized only when the interface is
brought up.
This patch adds driver changes to configure rss params only when the device
is in opened state. In port disabled case, the config will be cached in the
driver structure which will be applied in the successive load path.
Please consider applying it to 'net' branch.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 0894da849f ]
Including asm/cacheflush.h first results in the following build error
when trying to build sparc32:allmodconfig, because 'struct page' has not
been declared, and the function declaration ends up creating a separate
(private) declaration of struct page (as a result of function arguments
being in the scope of the function declaration and definition, not in
global scope).
The C scoping rules do not just affect variable visibility, they also
affect type declaration visibility.
The end result is that when the actual call site is seen in
<linux/highmem.h>, the 'struct page' type in the caller is not the same
'struct page' that the function was declared with, resulting in:
In file included from arch/sparc/include/asm/page.h:10:0,
...
from drivers/staging/media/omap4iss/iss_video.c:15:
include/linux/highmem.h: In function 'clear_user_highpage':
include/linux/highmem.h:137:31: error:
passing argument 1 of 'sparc_flush_page_to_ram' from incompatible
pointer type
Include generic includes files first to fix the problem.
Fixes: fc96d58c10 ("[media] v4l: omap4iss: Add support for OMAP4 camera interface - Video devices")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
[ Added explanation of C scope rules - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 54e4a0c486 ]
MCAN message ram should only be accessed once clocks are enabled.
Therefore, move the call to parse/init the message ram to after
clocks are enabled.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit b5c1a23b17 ]
of_iomap() can return NULL so that return needs to be checked and NULL
treated as failure. While at it also take care of the missing
of_node_put() in the error path.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: commit afa17a500a ("net/can: add driver for mscan family & mpc52xx_mscan")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit c9ce1fa1c2 ]
Prevent drivers from building on PPC32 if they use isa_bus_to_virt(),
isa_virt_to_bus(), or isa_page_to_bus(), which are not available and
thus cause build errors.
../drivers/net/ethernet/3com/3c515.c: In function 'corkscrew_open':
../drivers/net/ethernet/3com/3c515.c:824:9: error: implicit declaration of function 'isa_virt_to_bus'; did you mean 'virt_to_bus'? [-Werror=implicit-function-declaration]
../drivers/net/ethernet/amd/lance.c: In function 'lance_rx':
../drivers/net/ethernet/amd/lance.c:1203:23: error: implicit declaration of function 'isa_bus_to_virt'; did you mean 'bus_to_virt'? [-Werror=implicit-function-declaration]
../drivers/net/ethernet/amd/ni65.c: In function 'ni65_init_lance':
../drivers/net/ethernet/amd/ni65.c:585:20: error: implicit declaration of function 'isa_virt_to_bus'; did you mean 'virt_to_bus'? [-Werror=implicit-function-declaration]
../drivers/net/ethernet/cirrus/cs89x0.c: In function 'net_open':
../drivers/net/ethernet/cirrus/cs89x0.c:897:20: error: implicit declaration of function 'isa_virt_to_bus'; did you mean 'virt_to_bus'? [-Werror=implicit-function-declaration]
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 58874c7b24 ]
There's a possible race where driver can read link status in mid-transition
and see that virtual-link is up yet speed is 0. Since in this
mid-transition we're guaranteed to see a mailbox from MFW soon, we can
afford to treat this as link down.
Fixes: cc875c2e ("qed: Add link support")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 4ad95a93a7 ]
Apparently, MFW publishes EEE capabilities even for Fiber-boards that don't
support them, and later since qed internally sets adv_caps it would cause
link-flap avoidance (LFA) to fail when driver would initiate the link.
This in turn delays the link, causing traffic to fail.
Driver has been modified to not to ask MFW for any EEE config if EEE isn't
to be enabled.
Fixes: 645874e5 ("qed: Add support for Energy efficient ethernet.")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit eec24f2a0d ]
The list [1] of commits doing endianness fixes in USB subsystem is long
due to below quote from USB spec Revision 2.0 from April 27, 2000:
------------
8.1 Byte/Bit Ordering
Multiple byte fields in standard descriptors, requests, and responses
are interpreted as and moved over the bus in little-endian order, i.e.
LSB to MSB.
------------
This commit belongs to the same family.
[1] Example of endianness fixes in USB subsystem:
commit 14e1d56cbe ("usb: gadget: f_uac2: endianness fixes.")
commit 42370b8211 ("usb: gadget: f_uac1: endianness fixes.")
commit 63afd5cc78 ("USB: chaoskey: fix Alea quirk on big-endian hosts")
commit 74098c4ac7 ("usb: gadget: acm: fix endianness in notifications")
commit cdd7928df0 ("ACM gadget: fix endianness in notifications")
commit 323ece54e0 ("cdc-wdm: fix endianness bug in debug statements")
commit e102609f10 ("usb: gadget: uvc: Fix endianness mismatches")
list goes on
Fixes: 132fcb4608 ("usb: gadget: Add Audio Class 2.0 Driver")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit a39ba90a1c ]
Fix build errors when built for PPC64:
These variables are only used on PPC32 so they don't need to be
initialized for PPC64.
../drivers/usb/phy/phy-fsl-usb.c: In function 'usb_otg_start':
../drivers/usb/phy/phy-fsl-usb.c:865:3: error: '_fsl_readl' undeclared (first use in this function); did you mean 'fsl_readl'?
_fsl_readl = _fsl_readl_be;
../drivers/usb/phy/phy-fsl-usb.c:865:16: error: '_fsl_readl_be' undeclared (first use in this function); did you mean 'fsl_readl'?
_fsl_readl = _fsl_readl_be;
../drivers/usb/phy/phy-fsl-usb.c:866:3: error: '_fsl_writel' undeclared (first use in this function); did you mean 'fsl_writel'?
_fsl_writel = _fsl_writel_be;
../drivers/usb/phy/phy-fsl-usb.c:866:17: error: '_fsl_writel_be' undeclared (first use in this function); did you mean 'fsl_writel'?
_fsl_writel = _fsl_writel_be;
../drivers/usb/phy/phy-fsl-usb.c:868:16: error: '_fsl_readl_le' undeclared (first use in this function); did you mean 'fsl_readl'?
_fsl_readl = _fsl_readl_le;
../drivers/usb/phy/phy-fsl-usb.c:869:17: error: '_fsl_writel_le' undeclared (first use in this function); did you mean 'fsl_writel'?
_fsl_writel = _fsl_writel_le;
and the sysfs "show" function return type should be ssize_t, not int:
../drivers/usb/phy/phy-fsl-usb.c:1042:49: error: initialization of 'ssize_t (*)(struct device *, struct device_attribute *, char *)' {aka 'long int (*)(struct device *, struct device_attribute *, char *)'} from incompatible pointer type 'int (*)(struct device *, struct device_attribute *, char *)' [-Werror=incompatible-pointer-types]
static DEVICE_ATTR(fsl_usb2_otg_state, S_IRUGO, show_fsl_usb2_otg_state, NULL);
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: linux-usb@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 773e53d50e ]
Substream period size potentially can be changed in runtime, however
this is not accounted in the data copying routine, the change replaces
the cached value with an actual value from substream runtime.
As a side effect the change also removes a potential division by zero
in u_audio_iso_complete() function, if there is a race with
uac_pcm_hw_free(), which sets prm->period_size to 0.
Fixes: 132fcb4608 ("usb: gadget: Add Audio Class 2.0 Driver")
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 96afb54ece ]
There is no necessity to copy PCM stream ring buffer area and size
properties to UAC private data structure, these values can be got
from substream itself.
The change gives more control on substream and avoid stale caching.
Fixes: 132fcb4608 ("usb: gadget: Add Audio Class 2.0 Driver")
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 6b37bd78d3 ]
In u_audio_iso_complete, the runtime hw_ptr is updated before the
data is actually copied over to/from the buffer/dma area. When
ALSA uses this hw_ptr, the data may not actually be available to
be used. This causes trash/stale audio to play/record. This
patch updates the hw_ptr after the data has been copied to avoid
this.
Fixes: 132fcb4608 ("usb: gadget: Add Audio Class 2.0 Driver")
Signed-off-by: Joshua Frkuska <joshua_frkuska@mentor.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit f36b507c14 ]
The driver may sleep in an interrupt handler.
The function call path (from bottom to top) in Linux-4.16.7 is:
[FUNC] r8a66597_queue(GFP_KERNEL)
drivers/usb/gadget/udc/r8a66597-udc.c, 1193:
r8a66597_queue in get_status
drivers/usb/gadget/udc/r8a66597-udc.c, 1301:
get_status in setup_packet
drivers/usb/gadget/udc/r8a66597-udc.c, 1381:
setup_packet in irq_control_stage
drivers/usb/gadget/udc/r8a66597-udc.c, 1508:
irq_control_stage in r8a66597_irq (interrupt handler)
To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool (DSAC-2) and checked by
my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 0602088b10 ]
The driver may sleep with holding a spinlock.
The function call paths (from bottom to top) in Linux-4.16.7 are:
[FUNC] msleep
drivers/usb/gadget/udc/r8a66597-udc.c, 839:
msleep in init_controller
drivers/usb/gadget/udc/r8a66597-udc.c, 96:
init_controller in r8a66597_usb_disconnect
drivers/usb/gadget/udc/r8a66597-udc.c, 93:
spin_lock in r8a66597_usb_disconnect
[FUNC] msleep
drivers/usb/gadget/udc/r8a66597-udc.c, 835:
msleep in init_controller
drivers/usb/gadget/udc/r8a66597-udc.c, 96:
init_controller in r8a66597_usb_disconnect
drivers/usb/gadget/udc/r8a66597-udc.c, 93:
spin_lock in r8a66597_usb_disconnect
To fix these bugs, msleep() is replaced with mdelay().
This bug is found by my static analysis tool (DSAC-2) and checked by
my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 8f3ea35929 ]
If the server or network is misbehaving and we get an unexpected reply
we can sometimes miss the request not being started and wait on a
request and never get a response, or even double complete the same
request. Fix this by replacing the send_complete completion with just a
per command lock. Add a per command cookie as well so that we can know
if we're getting a double completion for a previous event. Also check
to make sure we dont have REQUEUED set as that means we raced with the
timeout handler and need to just let the retry occur.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit d7d94d48a2 ]
We can race with the snd timeout and the per-request timeout and end up
requeuing the same request twice. We can't use the send_complete
completion to tell if everything is ok because we hold the tx_lock
during send, so the timeout stuff will block waiting to mark the socket
dead, and we could be marked complete and still requeue. Instead add a
flag to the socket so we know whether we've been requeued yet.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit b58262396f ]
The LVDS signal integrity is only guaranteed when the correct enable
sequence (first IPU DI, then LDB) is used. If the LDB display output was
active before the imx-drm driver is loaded (like when a bootsplash was
active) the DI will be disabled by the full IPU reset we do when loading
the driver. The LDB control registers are not part of the IPU range and
thus will remain unchanged.
This leads to the LDB still being active when the DI is getting enabled,
effectively reversing the required enable sequence. Fix this by also
disabling the LDB on driver bind.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit a17037e7d5 ]
In iscsi_check_tmf_restrictions() task->hdr is dereferenced to print the
opcode, it is possible that task->hdr is NULL.
There are two cases based on opcode argument:
1. ISCSI_OP_SCSI_CMD - In this case alloc_pdu() is called
after iscsi_check_tmf_restrictions()
iscsi_prep_scsi_cmd_pdu() -> iscsi_check_tmf_restrictions() -> alloc_pdu().
Transport drivers allocate memory for iSCSI hdr in alloc_pdu() and assign
it to task->hdr. In case of TMF task->hdr will be NULL resulting in NULL
pointer dereference.
2. ISCSI_OP_SCSI_DATA_OUT - In this case transport driver can free the
memory for iSCSI hdr after transmitting the pdu so task->hdr can be NULL or
invalid.
This patch fixes this issue by removing task->hdr->opcode from the printk
statement.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 1b350ea0c2 ]
- rounddown CXGBIT_MAX_ISO_PAYLOAD by csk->emss before calculating
max_iso_npdu to get max TCP payload in multiple of mss.
- call cxgbit_set_digest() before cxgbit_set_iso_npdu() to set
csk->submode, it is used in calculating number of iso pdus.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
