Commit graph

1044432 commits

Author SHA1 Message Date
Tariq Toukan ca20dfda05 net/mlx5e: Allow only complete TXQs partition in MQPRIO channel mode
Do not allow configurations of MQPRIO channel mode that do not
fully define and utilize the channels txqs.

Fixes: ec60c4581b ("net/mlx5e: Support MQPRIO channel mode")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-12 13:51:48 -07:00
Shay Drory 2266bb1e12 net/mlx5: Fix cleanup of bridge delayed work
Currently, bridge cleanup is calling to cancel_delayed_work(). When this
function is finished, there is a chance that the delayed work is still
running. Also, the delayed work is queueing itself.
As a result, we might execute the delayed work after the bridge cleanup
have finished and hit a null-ptr oops[1].

Fix it by using cancel_delayed_work_sync(), which is waiting until the
work is done and will cancel the queue work.

[1]
[ 8202.143043 ] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 8202.144438 ] #PF: supervisor write access in kernel mode
[ 8202.145476 ] #PF: error_code(0x0002) - not-present page
[ 8202.146520 ] PGD 0 P4D 0
[ 8202.147126 ] Oops: 0002 [#1] SMP NOPTI
[ 8202.147899 ] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.14.0-rc6_for_upstream_min_debug_2021_08_25_16_06 #1
[ 8202.149741 ] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 8202.151908 ] RIP: 0010:_raw_spin_lock+0xc/0x20
[ 8202.156234 ] RSP: 0018:ffff88846f885ea0 EFLAGS: 00010046
[ 8202.157289 ] RAX: 0000000000000000 RBX: ffff88846f880000 RCX: 0000000000000000
[ 8202.158731 ] RDX: 0000000000000001 RSI: ffff8881004000c8 RDI: 0000000000000000
[ 8202.160177 ] RBP: ffff8881fe684978 R08: ffff888100140000 R09: ffffffff824455b8
[ 8202.161569 ] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 8202.163004 ] R13: 0000000000000012 R14: 0000000000000200 R15: ffff88812992d000
[ 8202.164018 ] FS:  0000000000000000(0000) GS:ffff88846f880000(0000) knlGS:0000000000000000
[ 8202.164960 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8202.165634 ] CR2: 0000000000000000 CR3: 0000000108cac004 CR4: 0000000000370ea0
[ 8202.166450 ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8202.167807 ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 8202.168852 ] Call Trace:
[ 8202.169421 ]  <IRQ>
[ 8202.169792 ]  __queue_work+0xf2/0x3d0
[ 8202.170481 ]  ? queue_work_node+0x40/0x40
[ 8202.171270 ]  call_timer_fn+0x2b/0x100
[ 8202.171932 ]  __run_timers.part.0+0x152/0x220
[ 8202.172717 ]  ? __hrtimer_run_queues+0x171/0x290
[ 8202.173526 ]  ? kvm_clock_get_cycles+0xd/0x10
[ 8202.174232 ]  ? ktime_get+0x35/0x90
[ 8202.174943 ]  run_timer_softirq+0x26/0x50
[ 8202.175745 ]  __do_softirq+0xc7/0x271
[ 8202.176373 ]  irq_exit_rcu+0x93/0xb0
[ 8202.176983 ]  sysvec_apic_timer_interrupt+0x72/0x90
[ 8202.177755 ]  </IRQ>
[ 8202.178245 ]  asm_sysvec_apic_timer_interrupt+0x12/0x20

Fixes: c636a0f0f3 ("net/mlx5: Bridge, dynamic entry ageing")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-12 13:51:45 -07:00
Jonas Hahnfeld 48827e1d6a ALSA: usb-audio: Add quirk for VF0770
The device advertises 8 formats, but only a rate of 48kHz is honored
by the hardware and 24 bits give chopped audio, so only report the
one working combination. This fixes out-of-the-box audio experience
with PipeWire which otherwise attempts to choose S24_3LE (while
PulseAudio defaulted to S16_LE).

Signed-off-by: Jonas Hahnfeld <hahnjo@hahnjo.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211012200906.3492-1-hahnjo@hahnjo.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-10-12 22:13:11 +02:00
Linus Torvalds f4d0cc426f arm64 fixes:
- Fix CMA gigantic page order for 16K/64K page sizes.
 
 - Fix section mismatch error in drivers/acpi/arm64/gtdt.c.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Fix CMA gigantic page order for 16K/64K page sizes

 - Fix section mismatch error in drivers/acpi/arm64/gtdt.c

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  acpi/arm64: fix next_platform_timer() section mismatch error
  arm64/hugetlb: fix CMA gigantic page order for non-4K PAGE_SIZE
2021-10-12 11:16:38 -07:00
Linus Torvalds ed47291911 platform-drivers-x86 for v5.15-3
Second (small) set of pdx86 fixes for 5.15.
 
 The following is an automated git shortlog grouped by driver:
 
 amd-pmc:
  -  Add alternative acpi id for PMC controller
 
 dell:
  -  Make DELL_WMI_PRIVACY depend on DELL_WMI
 
 gigabyte-wmi:
  -  add support for B550 AORUS ELITE AX V2
 
 int1092:
  -  Fix non sequential device mode handling
 
 intel_scu_ipc:
  -  Update timeout value in comment
  -  Increase virtual timeout to 10s
  -  Fix busy loop expiry time
 
 intel_skl_int3472:
  -  Correct null check
 
 platform/mellanox:
  -  mlxreg-io: Fix read access of n-bytes size attributes
  -  mlxreg-io: Fix argument base in kstrtou32() call
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Merge tag 'platform-drivers-x86-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "A second (small) set of pdx86 bug-fixes and new hardware ids for 5.15"

* tag 'platform-drivers-x86-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: int1092: Fix non sequential device mode handling
  platform/x86: intel_skl_int3472: Correct null check
  platform/x86: gigabyte-wmi: add support for B550 AORUS ELITE AX V2
  platform/x86: amd-pmc: Add alternative acpi id for PMC controller
  platform/x86: intel_scu_ipc: Update timeout value in comment
  platform/x86: intel_scu_ipc: Increase virtual timeout to 10s
  platform/x86: intel_scu_ipc: Fix busy loop expiry time
  platform/x86: dell: Make DELL_WMI_PRIVACY depend on DELL_WMI
  platform/mellanox: mlxreg-io: Fix read access of n-bytes size attributes
  platform/mellanox: mlxreg-io: Fix argument base in kstrtou32() call
2021-10-12 11:11:39 -07:00
Jiazi Li d208b89401 dm: fix mempool NULL pointer race when completing IO
dm_io_dec_pending() calls end_io_acct() first and will then dec md
in-flight pending count. But if a task is swapping DM table at same
time this can result in a crash due to mempool->elements being NULL:

task1                             task2
do_resume
 ->do_suspend
  ->dm_wait_for_completion
                                  bio_endio
				   ->clone_endio
				    ->dm_io_dec_pending
				     ->end_io_acct
				      ->wakeup task1
 ->dm_swap_table
  ->__bind
   ->__bind_mempools
    ->bioset_exit
     ->mempool_exit
                                     ->free_io

[ 67.330330] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000000
......
[ 67.330494] pstate: 80400085 (Nzcv daIf +PAN -UAO)
[ 67.330510] pc : mempool_free+0x70/0xa0
[ 67.330515] lr : mempool_free+0x4c/0xa0
[ 67.330520] sp : ffffff8008013b20
[ 67.330524] x29: ffffff8008013b20 x28: 0000000000000004
[ 67.330530] x27: ffffffa8c2ff40a0 x26: 00000000ffff1cc8
[ 67.330535] x25: 0000000000000000 x24: ffffffdada34c800
[ 67.330541] x23: 0000000000000000 x22: ffffffdada34c800
[ 67.330547] x21: 00000000ffff1cc8 x20: ffffffd9a1304d80
[ 67.330552] x19: ffffffdada34c970 x18: 000000b312625d9c
[ 67.330558] x17: 00000000002dcfbf x16: 00000000000006dd
[ 67.330563] x15: 000000000093b41e x14: 0000000000000010
[ 67.330569] x13: 0000000000007f7a x12: 0000000034155555
[ 67.330574] x11: 0000000000000001 x10: 0000000000000001
[ 67.330579] x9 : 0000000000000000 x8 : 0000000000000000
[ 67.330585] x7 : 0000000000000000 x6 : ffffff80148b5c1a
[ 67.330590] x5 : ffffff8008013ae0 x4 : 0000000000000001
[ 67.330596] x3 : ffffff80080139c8 x2 : ffffff801083bab8
[ 67.330601] x1 : 0000000000000000 x0 : ffffffdada34c970
[ 67.330609] Call trace:
[ 67.330616] mempool_free+0x70/0xa0
[ 67.330627] bio_put+0xf8/0x110
[ 67.330638] dec_pending+0x13c/0x230
[ 67.330644] clone_endio+0x90/0x180
[ 67.330649] bio_endio+0x198/0x1b8
[ 67.330655] dec_pending+0x190/0x230
[ 67.330660] clone_endio+0x90/0x180
[ 67.330665] bio_endio+0x198/0x1b8
[ 67.330673] blk_update_request+0x214/0x428
[ 67.330683] scsi_end_request+0x2c/0x300
[ 67.330688] scsi_io_completion+0xa0/0x710
[ 67.330695] scsi_finish_command+0xd8/0x110
[ 67.330700] scsi_softirq_done+0x114/0x148
[ 67.330708] blk_done_softirq+0x74/0xd0
[ 67.330716] __do_softirq+0x18c/0x374
[ 67.330724] irq_exit+0xb4/0xb8
[ 67.330732] __handle_domain_irq+0x84/0xc0
[ 67.330737] gic_handle_irq+0x148/0x1b0
[ 67.330744] el1_irq+0xe8/0x190
[ 67.330753] lpm_cpuidle_enter+0x4f8/0x538
[ 67.330759] cpuidle_enter_state+0x1fc/0x398
[ 67.330764] cpuidle_enter+0x18/0x20
[ 67.330772] do_idle+0x1b4/0x290
[ 67.330778] cpu_startup_entry+0x20/0x28
[ 67.330786] secondary_start_kernel+0x160/0x170

Fix this by:
1) Establishing pointers to 'struct dm_io' members in
dm_io_dec_pending() so that they may be passed into end_io_acct()
_after_ free_io() is called.
2) Moving end_io_acct() after free_io().

Cc: stable@vger.kernel.org
Signed-off-by: Jiazi Li <lijiazi@xiaomi.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2021-10-12 13:54:10 -04:00
Ming Lei b4459b11e8 dm rq: don't queue request to blk-mq during DM suspend
DM uses blk-mq's quiesce/unquiesce to stop/start device mapper queue.

But blk-mq's unquiesce may come from outside events, such as elevator
switch, updating nr_requests or others, and request may come during
suspend, so simply ask for blk-mq to requeue it.

Fixes one kernel panic issue when running updating nr_requests and
dm-mpath suspend/resume stress test.

Cc: stable@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2021-10-12 13:54:10 -04:00
Colin Ian King ec132ef2d1 dm clone: make array 'descs' static
Don't populate the read-only array descs on the stack but instead it
static and add extra const. Also makes the object code smaller by 66
bytes:

Before:
   text    data     bss     dec     hex filename
  42382   11140     512   54034    d312 ./drivers/md/dm-clone-target.o

After:
   text    data     bss     dec     hex filename
  42220   11236     512   53968    d2d0 ./drivers/md/dm-clone-target.o

(gcc version 11.2.0)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2021-10-12 13:54:10 -04:00
Akilesh Kailash 2c0468e054 dm verity: skip redundant verity_handle_err() on I/O errors
Without FEC, dm-verity won't call verity_handle_err() when I/O fails,
but with FEC enabled, it currently does even if an I/O error has
occurred.

If there is an I/O error and FEC correction fails, return the error
instead of calling verity_handle_err() again.

Suggested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Akilesh Kailash <akailash@google.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2021-10-12 13:54:09 -04:00
Jackie Liu 596143e3ae acpi/arm64: fix next_platform_timer() section mismatch error
Fix modpost Section mismatch error in next_platform_timer().

  [...]
  WARNING: modpost: vmlinux.o(.text.unlikely+0x26e60): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
  The function next_platform_timer() references
  the variable __initdata acpi_gtdt_desc.
  This is often because next_platform_timer lacks a __initdata
  annotation or the annotation of acpi_gtdt_desc is wrong.

  WARNING: modpost: vmlinux.o(.text.unlikely+0x26e64): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
  The function next_platform_timer() references
  the variable __initdata acpi_gtdt_desc.
  This is often because next_platform_timer lacks a __initdata
  annotation or the annotation of acpi_gtdt_desc is wrong.

  ERROR: modpost: Section mismatches detected.
  Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
  make[1]: *** [scripts/Makefile.modpost:59: vmlinux.symvers] Error 1
  make[1]: *** Deleting file 'vmlinux.symvers'
  make: *** [Makefile:1176: vmlinux] Error 2
  [...]

Fixes: a712c3ed9b ("acpi/arm64: Add memory-mapped timer support in GTDT driver")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/20210823092526.2407526-1-liu.yun@linux.dev
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-10-12 17:41:19 +01:00
Dan Carpenter 7904022dec block/rnbd-clt-sysfs: fix a couple uninitialized variable bugs
These variables are printed on the error path if match_int() fails so
they have to be initialized.

Fixes: 2958a995ed ("block/rnbd-clt: Support polling mode for IO latency optimization")
Fixes: 1eb54f8f5d ("block/rnbd: client: sysfs interface functions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Gioh Kim <gi-oh.kim@ionos.com>
Link: https://lore.kernel.org/r/20211012084443.GA31472@kili
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-12 10:39:57 -06:00
Florian Fainelli bc22b6208f Merge tag 'tags/bcm2835-dt-fixes-2021-10-06' into devicetree/fixes
A series of devicetree fixes for the Raspberry Pi 4:

- Fix VEC reg address
- Fix MDIO address/size cells
- Fix regulator states
- Fix PCIe address formatting

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-10-12 09:14:30 -07:00
Nicolas Saenz Julienne 3f32472854 ARM: dts: bcm2711-rpi-4-b: Fix usb's unit address
The unit address is supposed to represent '<device>,<function>'. Which
are both 0 for RPi4b's XHCI controller. On top of that although
OpenFirmware states bus number goes in the high part of the last reg
parameter, FDT doesn't seem to care for it[1], so remove it.

[1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210830103909.323356-1-nsaenzju@redhat.com/#24414633
Fixes: 258f92d2f8 ("ARM: dts: bcm2711: Add reset controller to xHCI node")
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210831125843.1233488-2-nsaenzju@redhat.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
2021-10-12 09:14:26 -07:00
Nicolas Saenz Julienne 13dbc954b3 ARM: dts: bcm2711-rpi-4-b: Fix pcie0's unit address formatting
dtbs_check currently complains that:

arch/arm/boot/dts/bcm2711-rpi-4-b.dts:220.10-231.4: Warning
(pci_device_reg): /scb/pcie@7d500000/pci@1,0: PCI unit address format
error, expected "0,0"

Unsurprisingly pci@0,0 is the right address, as illustrated by its reg
property:

    &pcie0 {
	    pci@0,0 {
		    /*
		     * As defined in the IEEE Std 1275-1994 document,
		     * reg is a five-cell address encoded as (phys.hi
		     * phys.mid phys.lo size.hi size.lo). phys.hi
		     * should contain the device's BDF as 0b00000000
		     * bbbbbbbb dddddfff 00000000. The other cells
		     * should be zero.
		     */
		    reg = <0 0 0 0 0>;
	    };
    };

The device is clearly 0. So fix it.

Also add a missing 'device_type = "pci"'.

Fixes: 258f92d2f8 ("ARM: dts: bcm2711: Add reset controller to xHCI node")
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210831125843.1233488-1-nsaenzju@redhat.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
2021-10-12 09:14:16 -07:00
Kai Vehmanen b37a15188e ALSA: hda: avoid write to STATESTS if controller is in reset
The snd_hdac_bus_reset_link() contains logic to clear STATESTS register
before performing controller reset. This code dates back to an old
bugfix in commit e8a7f136f5 ("[ALSA] hda-intel - Improve HD-audio
codec probing robustness"). Originally the code was added to
azx_reset().

The code was moved around in commit a41d122449 ("ALSA: hda - Embed bus
into controller object") and ended up to snd_hdac_bus_reset_link() and
called primarily via snd_hdac_bus_init_chip().

The logic to clear STATESTS is correct when snd_hdac_bus_init_chip() is
called when controller is not in reset. In this case, STATESTS can be
cleared. This can be useful e.g. when forcing a controller reset to retry
codec probe. A normal non-power-on reset will not clear the bits.

However, this old logic is problematic when controller is already in
reset. The HDA specification states that controller must be taken out of
reset before writing to registers other than GCTL.CRST (1.0a spec,
3.3.7). The write to STATESTS in snd_hdac_bus_reset_link() will be lost
if the controller is already in reset per the HDA specification mentioned.

This has been harmless on older hardware. On newer generation of Intel
PCIe based HDA controllers, if configured to report issues, this write
will emit an unsupported request error. If ACPI Platform Error Interface
(APEI) is enabled in kernel, this will end up to kernel log.

Fix the code in snd_hdac_bus_reset_link() to only clear the STATESTS if
the function is called when controller is not in reset. Otherwise
clearing the bits is not possible and should be skipped.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211012142935.3731820-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-10-12 18:05:28 +02:00
Konstantin Komarov 8607954cf2
fs/ntfs3: Check for NULL pointers in ni_try_remove_attr_list
Check for potential NULL pointers.
Print error message if found.
Thread, that leads to this commit:
https://lore.kernel.org/ntfs3/227c13e3-5a22-0cba-41eb-fcaf41940711@paragon-software.com/

Reported-by: Mohammad Rasim <mohammad.rasim96@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
2021-10-12 18:53:03 +03:00
Sachi King 1ea1dbf1f5 ACPI: PM: Include alternate AMDI0005 id in special behaviour
The Surface Laptop 4 AMD has used the AMD0005 to identify this
controller instead of using the appropriate ACPI ID AMDI0005.  The
AMD0005 needs the same special casing as AMDI0005.

Link: https://github.com/linux-surface/acpidumps/tree/master/surface_laptop_4_amd
Link: https://gist.github.com/nakato/2a1a7df1a45fe680d7a08c583e1bf863
Signed-off-by: Sachi King <nakato@nakato.io>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Cc: 5.14+ <stable@vger.kernel.org> # 5.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-10-12 15:59:16 +02:00
Hui Wang a3fd1a986e ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW
We need to define the codec pin 0x1b to be the mic, but somehow
the mic doesn't support hot plugging detection, and Windows also has
this issue, so we set it to phantom headset-mic.

Also the determine_headset_type() often returns the omtp type by a
mistake when we plug a ctia headset, this makes the mic can't record
sound at all. Because most of the headset are ctia type nowadays and
some machines have the fixed ctia type audio jack, it is possible this
machine has the fixed ctia jack too. Here we set this mic jack to
fixed ctia type, this could avoid the mic type detection mistake and
make the ctia headset work stable.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214537
Reported-and-tested-by: msd <msd.mmq@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20211012114748.5238-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-10-12 14:10:19 +02:00
Sumit Garg 7f565d0ead tee: optee: Fix missing devices unregister during optee_remove
When OP-TEE driver is built as a module, OP-TEE client devices
registered on TEE bus during probe should be unregistered during
optee_remove. So implement optee_unregister_devices() accordingly.

Fixes: c3fa24af92 ("tee: optee: add TEE bus device enumeration support")
Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2021-10-12 13:24:39 +02:00
Jacob Keller 4d4a223a86 ice: fix locking for Tx timestamp tracking flush
Commit 4dd0d5c33c ("ice: add lock around Tx timestamp tracker flush")
added a lock around the Tx timestamp tracker flow which is used to
cleanup any left over SKBs and prepare for device removal.

This lock is problematic because it is being held around a call to
ice_clear_phy_tstamp. The clear function takes a mutex to send a PHY
write command to firmware. This could lead to a deadlock if the mutex
actually sleeps, and causes the following warning on a kernel with
preemption debugging enabled:

[  715.419426] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:573
[  715.427900] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3100, name: rmmod
[  715.435652] INFO: lockdep is turned off.
[  715.439591] Preemption disabled at:
[  715.439594] [<0000000000000000>] 0x0
[  715.446678] CPU: 52 PID: 3100 Comm: rmmod Tainted: G        W  OE     5.15.0-rc4+ #42 bdd7ec3018e725f159ca0d372ce8c2c0e784891c
[  715.458058] Hardware name: Intel Corporation S2600STQ/S2600STQ, BIOS SE5C620.86B.02.01.0010.010620200716 01/06/2020
[  715.468483] Call Trace:
[  715.470940]  dump_stack_lvl+0x6a/0x9a
[  715.474613]  ___might_sleep.cold+0x224/0x26a
[  715.478895]  __mutex_lock+0xb3/0x1440
[  715.482569]  ? stack_depot_save+0x378/0x500
[  715.486763]  ? ice_sq_send_cmd+0x78/0x14c0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.494979]  ? kfree+0xc1/0x520
[  715.498128]  ? mutex_lock_io_nested+0x12a0/0x12a0
[  715.502837]  ? kasan_set_free_info+0x20/0x30
[  715.507110]  ? __kasan_slab_free+0x10b/0x140
[  715.511385]  ? slab_free_freelist_hook+0xc7/0x220
[  715.516092]  ? kfree+0xc1/0x520
[  715.519235]  ? ice_deinit_lag+0x16c/0x220 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.527359]  ? ice_remove+0x1cf/0x6a0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.535133]  ? pci_device_remove+0xab/0x1d0
[  715.539318]  ? __device_release_driver+0x35b/0x690
[  715.544110]  ? driver_detach+0x214/0x2f0
[  715.548035]  ? bus_remove_driver+0x11d/0x2f0
[  715.552309]  ? pci_unregister_driver+0x26/0x250
[  715.556840]  ? ice_module_exit+0xc/0x2f [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.564799]  ? __do_sys_delete_module.constprop.0+0x2d8/0x4e0
[  715.570554]  ? do_syscall_64+0x3b/0x90
[  715.574303]  ? entry_SYSCALL_64_after_hwframe+0x44/0xae
[  715.579529]  ? start_flush_work+0x542/0x8f0
[  715.583719]  ? ice_sq_send_cmd+0x78/0x14c0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.591923]  ice_sq_send_cmd+0x78/0x14c0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.599960]  ? wait_for_completion_io+0x250/0x250
[  715.604662]  ? lock_acquire+0x196/0x200
[  715.608504]  ? do_raw_spin_trylock+0xa5/0x160
[  715.612864]  ice_sbq_rw_reg+0x1e6/0x2f0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.620813]  ? ice_reset+0x130/0x130 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.628497]  ? __debug_check_no_obj_freed+0x1e8/0x3c0
[  715.633550]  ? trace_hardirqs_on+0x1c/0x130
[  715.637748]  ice_write_phy_reg_e810+0x70/0xf0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.646220]  ? do_raw_spin_trylock+0xa5/0x160
[  715.650581]  ? ice_ptp_release+0x910/0x910 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.658797]  ? ice_ptp_release+0x255/0x910 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.667013]  ice_clear_phy_tstamp+0x2c/0x110 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.675403]  ice_ptp_release+0x408/0x910 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.683440]  ice_remove+0x560/0x6a0 [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.691037]  ? _raw_spin_unlock_irqrestore+0x46/0x73
[  715.696005]  pci_device_remove+0xab/0x1d0
[  715.700018]  __device_release_driver+0x35b/0x690
[  715.704637]  driver_detach+0x214/0x2f0
[  715.708389]  bus_remove_driver+0x11d/0x2f0
[  715.712489]  pci_unregister_driver+0x26/0x250
[  715.716857]  ice_module_exit+0xc/0x2f [ice 9a7e1ec00971c89ecd3fe0d4dc7da2b3786a421d]
[  715.724637]  __do_sys_delete_module.constprop.0+0x2d8/0x4e0
[  715.730210]  ? free_module+0x6d0/0x6d0
[  715.733963]  ? task_work_run+0xe1/0x170
[  715.737803]  ? exit_to_user_mode_loop+0x17f/0x1d0
[  715.742509]  ? rcu_read_lock_sched_held+0x12/0x80
[  715.747215]  ? trace_hardirqs_on+0x1c/0x130
[  715.751401]  do_syscall_64+0x3b/0x90
[  715.754981]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  715.760033] RIP: 0033:0x7f4dfe59000b
[  715.763612] Code: 73 01 c3 48 8b 0d 6d 1e 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 1e 0c 00 f7 d8 64 89 01 48
[  715.782357] RSP: 002b:00007ffe8c891708 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[  715.789923] RAX: ffffffffffffffda RBX: 00005558a20468b0 RCX: 00007f4dfe59000b
[  715.797054] RDX: 000000000000000a RSI: 0000000000000800 RDI: 00005558a2046918
[  715.804189] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  715.811319] R10: 00007f4dfe603ac0 R11: 0000000000000206 R12: 00007ffe8c891940
[  715.818455] R13: 00007ffe8c8920a3 R14: 00005558a20462a0 R15: 00005558a20468b0

Notice that this is the only case where we use the lock in this way. In
the cleanup kthread and work kthread the lock is only taken around the
bit accesses. This was done intentionally to avoid this kind of issue.
The way the lock is used, we only protect ordering of bit sets vs bit
clears. The Tx writers in the hot path don't need to be protected
against the entire kthread loop. The Tx queues threads only need to
ensure that they do not re-use an index that is currently in use. The
cleanup loop does not need to block all new set bits, since it will
re-queue itself if new timestamps are present.

Fix the tracker flow so that it uses the same flow as the standard
cleanup thread. In addition, ensure the in_use bitmap actually gets
cleared properly.

This fixes the warning and also avoids the potential deadlock that might
have occurred otherwise.

Fixes: 4dd0d5c33c ("ice: add lock around Tx timestamp tracker flush")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 12:10:39 +01:00
Roberto Sassu 8e0ab8e26b s390: fix strrchr() implementation
Fix two problems found in the strrchr() implementation for s390
architectures: evaluate empty strings (return the string address instead of
NULL, if '\0' is passed as second argument); evaluate the first character
of non-empty strings (the current implementation stops at the second).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reported-by: Heiko Carstens <hca@linux.ibm.com> (incorrect behavior with empty strings)
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Link: https://lore.kernel.org/r/20211005120836.60630-1-roberto.sassu@huawei.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2021-10-12 13:07:37 +02:00
Cornelia Huck 4540938952 vfio-ccw: step down as maintainer
I currently don't have time to act as vfio-ccw maintainer
anymore, but I trust that I leave it in capable hands.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Eric Farman <farman@linux.ibm.com>
Acked-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Link: https://lore.kernel.org/r/20211006160120.217636-3-cohuck@redhat.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2021-10-12 13:07:37 +02:00
Cornelia Huck 1606520a24 KVM: s390: remove myself as reviewer
I currently don't have time anymore to review KVM/s390
code.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Link: https://lore.kernel.org/r/20211006160120.217636-2-cohuck@redhat.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2021-10-12 13:07:37 +02:00
David S. Miller 7389074ced Merge branch 'ioam-fixes'
Justin Iurman says:

====================
Correct the IOAM behavior for undefined trace type bits

(@Jakub @David: there will be a conflict for #2 when merging net->net-next, due
to commit [1]. The conflict is only 5-10 lines for #2 (#1 should be fine) inside
the file tools/testing/selftests/net/ioam6.sh, so quite short though possibly
ugly. Sorry for that, I didn't expect to post this one... Had I known, I'd have
made the opposite.)

Modify both the input and output behaviors regarding the trace type when one of
the undefined bits is set. The goal is to keep the interoperability when new
fields (aka new bits inside the range 12-21) will be defined.

The draft [2] says the following:
---------------------------------------------------------------
"Bit 12-21  Undefined.  These values are available for future
       assignment in the IOAM Trace-Type Registry (Section 8.2).
       Every future node data field corresponding to one of
       these bits MUST be 4-octets long.  An IOAM encapsulating
       node MUST set the value of each undefined bit to 0.  If
       an IOAM transit node receives a packet with one or more
       of these bits set to 1, it MUST either:

       1.  Add corresponding node data filled with the reserved
           value 0xFFFFFFFF, after the node data fields for the
           IOAM-Trace-Type bits defined above, such that the
           total node data added by this node in units of
           4-octets is equal to NodeLen, or

       2.  Not add any node data fields to the packet, even for
           the IOAM-Trace-Type bits defined above."
---------------------------------------------------------------

The output behavior has been modified to respect the fact that "an IOAM encap
node MUST set the value of each undefined bit to 0" (i.e., undefined bits can't
be set anymore).

As for the input behavior, current implementation is based on the second choice
(i.e., "not add any data fields to the packet [...]"). With this solution, any
interoperability is lost (i.e., if a new bit is defined, then an "old" kernel
implementation wouldn't fill IOAM data when such new bit is set inside the trace
type).

The input behavior is therefore relaxed and these undefined bits are now allowed
to be set. It is only possible thanks to the sentence "every future node data
field corresponding to one of these bits MUST be 4-octets long". Indeed, the
default empty value (the one for 4-octet fields) is inserted whenever an
undefined bit is set.

  [1] cfbe9b0021
  [2] https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-data#section-5.4.1
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:49:50 +01:00
Justin Iurman 7b1700e009 selftests: net: modify IOAM tests for undef bits
The output behavior for undefined bits is now directly tested inside the bash
script. Trying to set an undefined bit should be refused.

The input behavior for undefined bits has been removed due to the fact that we
would need another sender allowed to set undefined bits.

Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:49:49 +01:00
Justin Iurman 2bbc977ca6 ipv6: ioam: move the check for undefined bits
The check for undefined bits in the trace type is moved from the input side to
the output side, while the input side is relaxed and now inserts default empty
values when an undefined bit is set.

Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:49:49 +01:00
Arun Ramadoss ef1100ef20 net: dsa: microchip: Added the condition for scheduling ksz_mib_read_work
When the ksz module is installed and removed using rmmod, kernel crashes
with null pointer dereferrence error. During rmmod, ksz_switch_remove
function tries to cancel the mib_read_workqueue using
cancel_delayed_work_sync routine and unregister switch from dsa.

During dsa_unregister_switch it calls ksz_mac_link_down, which in turn
reschedules the workqueue since mib_interval is non-zero.
Due to which queue executed after mib_interval and it tries to access
dp->slave. But the slave is unregistered in the ksz_switch_remove
function. Hence kernel crashes.

To avoid this crash, before canceling the workqueue, resetted the
mib_interval to 0.

v1 -> v2:
-Removed the if condition in ksz_mib_read_work

Fixes: 469b390e1b ("net: dsa: microchip: use delayed_work instead of timer + work")
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:35:53 +01:00
Vegard Nossum 9973a43012 r8152: select CRC32 and CRYPTO/CRYPTO_HASH/CRYPTO_SHA256
Fix the following build/link errors by adding a dependency on
CRYPTO, CRYPTO_HASH, CRYPTO_SHA256 and CRC32:

  ld: drivers/net/usb/r8152.o: in function `rtl8152_fw_verify_checksum':
  r8152.c:(.text+0x2b2a): undefined reference to `crypto_alloc_shash'
  ld: r8152.c:(.text+0x2bed): undefined reference to `crypto_shash_digest'
  ld: r8152.c:(.text+0x2c50): undefined reference to `crypto_destroy_tfm'
  ld: drivers/net/usb/r8152.o: in function `_rtl8152_set_rx_mode':
  r8152.c:(.text+0xdcb0): undefined reference to `crc32_le'

Fixes: 9370f2d05a ("r8152: support request_firmware for RTL8153")
Fixes: ac718b6930 ("net/usb: new driver for RTL8152")
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:33:32 +01:00
Maarten Zanders 4a3e0aeddf net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's
mv88e6xxx_port_ppu_updates() interpretes data in the PORT_STS
register incorrectly for internal ports (ie no PPU). In these
cases, the PHY_DETECT bit indicates link status. This results
in forcing the MAC state whenever the PHY link goes down which
is not intended. As a side effect, LED's configured to show
link status stay lit even though the physical link is down.

Add a check in mac_link_down and mac_link_up to see if it
concerns an external port and only then, look at PPU status.

Fixes: 5d5b231da7 (net: dsa: mv88e6xxx: use PHY_DETECT in mac_link_up/mac_link_down)
Reported-by: Maarten Zanders <m.zanders@televic.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Maarten Zanders <maarten.zanders@mind.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:32:14 +01:00
Wan Jiabing 74a3bc42fe net: mscc: ocelot: Fix dumplicated argument in ocelot
Fix the following coccicheck warning:
drivers/net/ethernet/mscc/ocelot.c:474:duplicated argument to & or |
drivers/net/ethernet/mscc/ocelot.c:476:duplicated argument to & or |
drivers/net/ethernet/mscc/ocelot_net.c:1627:duplicated argument
to & or |

These DEV_CLOCK_CFG_MAC_TX_RST are duplicate here.
Here should be DEV_CLOCK_CFG_MAC_RX_RST.

Fixes: e6e12df625 ("net: mscc: ocelot: convert to phylink")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:21:55 +01:00
Stephen Boyd 0edf0824e0 af_unix: Rename UNIX-DGRAM to UNIX to maintain backwards compatability
Then name of this protocol changed in commit 94531cfcbe ("af_unix: Add
unix_stream_proto for sockmap") because that commit added stream support
to the af_unix protocol. Renaming the existing protocol makes a ChromeOS
protocol test[1] fail now that the name has changed in
/proc/net/protocols from "UNIX" to "UNIX-DGRAM".

Let's put the name back to how it was while keeping the stream protocol
as "UNIX-STREAM" so that the procfs interface doesn't change. This fixes
the test and maintains backwards compatibility in proc.

Cc: Jiang Wang <jiang.wang@bytedance.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Cong Wang <cong.wang@bytedance.com>
Cc: Jakub Sitnicki <jakub@cloudflare.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Dmitry Osipenko <digetx@gmail.com>
Link: https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/tast-tests/src/chromiumos/tast/local/bundles/cros/network/supported_protocols.go;l=50;drc=e8b1c3f94cb40a054f4aa1ef1aff61e75dc38f18 [1]
Fixes: 94531cfcbe ("af_unix: Add unix_stream_proto for sockmap")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-12 11:16:49 +01:00
Dan Carpenter 013923477c pata_legacy: fix a couple uninitialized variable bugs
The last byte of "pad" is used without being initialized.

Fixes: 55dba3120f ("libata: update ->data_xfer hook for ATAPI")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2021-10-12 09:52:35 +09:00
Dave Airlie ff01a62204 Merge tag 'drm-msm-fixes-2021-10-11' of https://gitlab.freedesktop.org/drm/msm into drm-fixes
* Fix a new crash on dev file close if the dev file was opened when
  GPU is not loaded (such as missing fw in initrd)
* Switch to single drm_sched_entity per priority level per drm_file
  to unbreak multi-context userspace
* Serialize GMU access to fix GMU OOB errors
* Various error path fixes
* A couple integer overflow fixes
* Fix mdp5 cursor plane WARNs

Signed-off-by: Dave Airlie <airlied@redhat.com>
From:   Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtD4u7yyiy+BQLmibUCbn=AdDRu7FrmdViHVx0QrcGf8g@mail.gmail.com
2021-10-12 10:31:14 +10:00
Dan Carpenter c8f01ffc83 drm/msm/dsi: fix off by one in dsi_bus_clk_enable error handling
This disables a lock which wasn't enabled and it does not disable
the first lock in the array.

Fixes: 6e0eb52eba ("drm/msm/dsi: Parse bus clocks from a list")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211001123409.GG2283@kili
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:54 -07:00
Dan Carpenter 739b4e7756 drm/msm/dsi: Fix an error code in msm_dsi_modeset_init()
Return an error code if msm_dsi_manager_validate_current_config().
Don't return success.

Fixes: 8b03ad30e3 ("drm/msm/dsi: Use one connector for dual DSI mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211001123308.GF2283@kili
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Marijn Suijten 90b7c1c661 drm/msm/dsi: dsi_phy_14nm: Take ready-bit into account in poll_for_ready
The downstream driver models this PLL lock check as an if-elseif-else.
The only way to reach the else case where pll_locked=true [1] is by
succeeding both readl_poll_timeout_atomic calls (which return zero on
success) in the if _and_ elseif condition.  Hence both the "lock" and
"ready" bit need to be tested in the SM_READY_STATUS register before
considering the PLL locked and ready to go.

Tested on the Sony Xperia XA2 Ultra (nile-discovery, sdm630).

[1]: https://source.codeaurora.org/quic/la/kernel/msm-4.19/tree/drivers/clk/qcom/mdss/mdss-dsi-pll-14nm-util.c?h=LA.UM.9.2.1.r1-08000-sdm660.0#n302

Fixes: f079f6d999 ("drm/msm/dsi: Add PHY/PLL for 8x96")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210906202552.824598-1-marijn.suijten@somainline.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Dmitry Baryshkov ad69b73add drm/msm/dsi/phy: fix clock names in 28nm_8960 phy
The commit 9f91f22aaf ("drm/msm/dsi: remove duplicate fields from
dsi_pll_Nnm instances") mistakenly changed registered clock names. While
the platform is in progress of migration to using clock properties in
the dts rather than the global clock names, we should provide backwards
compatibility. Thus restore registerd global clock names.

Fixes: 9f91f22aaf ("drm/msm/dsi: remove duplicate fields from dsi_pll_Nnm instances")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Link: https://lore.kernel.org/r/20210921162245.1858118-1-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Robert Foss 3431c17b75 drm/msm/dpu: Fix address of SM8150 PINGPONG5 IRQ register
Both PINGPONG4 and PINGPONG5 IRQ registers are using the
same address, which is incorrect. PINGPONG4 should use the
register offset 30, and PINGPONG5 should use the register
offset 31 according to the downstream driver.

Fixes: 667e9985ee ("drm/msm/dpu: replace IRQ lookup with the data in hw catalog")
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210819133636.2045766-1-robert.foss@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Fabio Estevam 6a7e0b0e9f drm/msm: Do not run snapshot on non-DPU devices
Since commit 98659487b8 ("drm/msm: add support to take dpu snapshot")
the following NULL pointer dereference is seen on i.MX53:

[ 3.275493] msm msm: bound 30000000.gpu (ops a3xx_ops)
[ 3.287174] [drm] Initialized msm 1.8.0 20130625 for msm on minor 0
[ 3.293915] 8<--- cut here ---
[ 3.297012] Unable to handle kernel NULL pointer dereference at virtual address 00000028
[ 3.305244] pgd = (ptrval)
[ 3.307989] [00000028] *pgd=00000000
[ 3.311624] Internal error: Oops: 805 [#1] SMP ARM
[ 3.316430] Modules linked in:
[ 3.319503] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.14.0+g682d702b426b #1
[ 3.326652] Hardware name: Freescale i.MX53 (Device Tree Support)
[ 3.332754] PC is at __mutex_init+0x14/0x54
[ 3.336969] LR is at msm_disp_snapshot_init+0x24/0xa0

i.MX53 does not use the DPU controller.

Fix the problem by only calling msm_disp_snapshot_init() on platforms that
use the DPU controller.

Cc: stable@vger.kernel.org
Fixes: 98659487b8 ("drm/msm: add support to take dpu snapshot")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210914174831.2044420-1-festevam@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Dan Carpenter 3eda901995 drm/msm/a3xx: fix error handling in a3xx_gpu_init()
These error paths returned 1 on failure, instead of a negative error
code.  This would lead to an Oops in the caller.  A second problem is
that the check for "if (ret != -ENODATA)" did not work because "ret" was
set to 1.

Fixes: 5785dd7a8e ("drm/msm: Fix duplicate gpu node in icc summary")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211001125904.GK2283@kili
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Dan Carpenter 980d74e7d0 drm/msm/a4xx: fix error handling in a4xx_gpu_init()
This code returns 1 on error instead of a negative error.  It leads to
an Oops in the caller.  A second problem is that the check for
"if (ret != -ENODATA)" cannot be true because "ret" is set to 1.

Fixes: 5785dd7a8e ("drm/msm: Fix duplicate gpu node in icc summary")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211001125759.GJ2283@kili
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Colin Ian King 2133c4fc8e drm/msm: Fix null pointer dereference on pointer edp
The initialization of pointer dev dereferences pointer edp before
edp is null checked, so there is a potential null pointer deference
issue. Fix this by only dereferencing edp after edp has been null
checked.

Addresses-Coverity: ("Dereference before null check")
Fixes: ab5b0107cc ("drm/msm: Initial add eDP support in msm drm driver (v5)")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210929121857.213922-1-colin.king@canonical.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Dmitry Baryshkov c491a0c7bb drm/msm/mdp5: fix cursor-related warnings
Since f35a2a9910 ("drm/encoder: make encoder control functions
optional") drm_mode_config_validate would print warnings if both cursor
plane and cursor functions are provided. Restore separate set of
drm_crtc_funcs to be used if separate cursor plane is provided.

[    6.556046] ------------[ cut here ]------------
[    6.556071] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_set func
[    6.556091] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:648 drm_mode_config_validate+0x238/0x4d0
[    6.567453] Modules linked in:
[    6.577604] CPU: 1 PID: 76 Comm: kworker/u8:2 Not tainted 5.15.0-rc1-dirty #43
[    6.580557] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[    6.587763] Workqueue: events_unbound deferred_probe_work_func
[    6.593926] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    6.599740] pc : drm_mode_config_validate+0x238/0x4d0
[    6.606596] lr : drm_mode_config_validate+0x238/0x4d0
[    6.611804] sp : ffff8000121b3980
[    6.616838] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[    6.620140] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[    6.627258] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[    6.634376] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[    6.641494] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c78709
[    6.648613] x14: 0000000000000000 x13: ffff800011a22850 x12: 00000000000009ab
[    6.655730] x11: 0000000000000339 x10: ffff800011a22850 x9 : ffff800011a22850
[    6.662848] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[    6.669966] x5 : 000000000000bff4 x4 : 40000000fffff339 x3 : 0000000000000000
[    6.677084] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[    6.684205] Call trace:
[    6.691319]  drm_mode_config_validate+0x238/0x4d0
[    6.693577]  drm_dev_register+0x17c/0x210
[    6.698435]  msm_drm_bind+0x4b4/0x694
[    6.702429]  try_to_bring_up_master+0x164/0x1d0
[    6.706075]  __component_add+0xa0/0x170
[    6.710415]  component_add+0x14/0x20
[    6.714234]  msm_hdmi_dev_probe+0x1c/0x2c
[    6.718053]  platform_probe+0x68/0xe0
[    6.721959]  really_probe.part.0+0x9c/0x30c
[    6.725606]  __driver_probe_device+0x98/0x144
[    6.729600]  driver_probe_device+0xc8/0x15c
[    6.734114]  __device_attach_driver+0xb4/0x120
[    6.738106]  bus_for_each_drv+0x78/0xd0
[    6.742619]  __device_attach+0xdc/0x184
[    6.746351]  device_initial_probe+0x14/0x20
[    6.750172]  bus_probe_device+0x9c/0xa4
[    6.754337]  deferred_probe_work_func+0x88/0xc0
[    6.758158]  process_one_work+0x1d0/0x370
[    6.762671]  worker_thread+0x2c8/0x470
[    6.766839]  kthread+0x15c/0x170
[    6.770483]  ret_from_fork+0x10/0x20
[    6.773870] ---[ end trace 5884eb76cd26d274 ]---
[    6.777500] ------------[ cut here ]------------
[    6.782043] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_move func
[    6.782063] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:654 drm_mode_config_validate+0x290/0x4d0
[    6.794362] Modules linked in:
[    6.804600] CPU: 1 PID: 76 Comm: kworker/u8:2 Tainted: G        W         5.15.0-rc1-dirty #43
[    6.807555] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[    6.816148] Workqueue: events_unbound deferred_probe_work_func
[    6.822311] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    6.828126] pc : drm_mode_config_validate+0x290/0x4d0
[    6.834981] lr : drm_mode_config_validate+0x290/0x4d0
[    6.840189] sp : ffff8000121b3980
[    6.845223] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[    6.848525] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[    6.855643] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[    6.862763] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[    6.869879] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c790c2
[    6.876998] x14: 0000000000000000 x13: ffff800011a22850 x12: 0000000000000a2f
[    6.884116] x11: 0000000000000365 x10: ffff800011a22850 x9 : ffff800011a22850
[    6.891234] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[    6.898351] x5 : 000000000000bff4 x4 : 40000000fffff365 x3 : 0000000000000000
[    6.905470] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[    6.912590] Call trace:
[    6.919702]  drm_mode_config_validate+0x290/0x4d0
[    6.921960]  drm_dev_register+0x17c/0x210
[    6.926821]  msm_drm_bind+0x4b4/0x694
[    6.930813]  try_to_bring_up_master+0x164/0x1d0
[    6.934459]  __component_add+0xa0/0x170
[    6.938799]  component_add+0x14/0x20
[    6.942619]  msm_hdmi_dev_probe+0x1c/0x2c
[    6.946438]  platform_probe+0x68/0xe0
[    6.950345]  really_probe.part.0+0x9c/0x30c
[    6.953991]  __driver_probe_device+0x98/0x144
[    6.957984]  driver_probe_device+0xc8/0x15c
[    6.962498]  __device_attach_driver+0xb4/0x120
[    6.966492]  bus_for_each_drv+0x78/0xd0
[    6.971004]  __device_attach+0xdc/0x184
[    6.974737]  device_initial_probe+0x14/0x20
[    6.978556]  bus_probe_device+0x9c/0xa4
[    6.982722]  deferred_probe_work_func+0x88/0xc0
[    6.986543]  process_one_work+0x1d0/0x370
[    6.991057]  worker_thread+0x2c8/0x470
[    6.995223]  kthread+0x15c/0x170
[    6.998869]  ret_from_fork+0x10/0x20
[    7.002255] ---[ end trace 5884eb76cd26d275 ]---

Fixes: aa649e875d ("drm/msm/mdp5: mdp5_crtc: Restore cursor state only if LM cursors are enabled")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210925192824.3416259-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Marek Vasut 171316a68d drm/msm: Avoid potential overflow in timeout_to_jiffies()
The return type of ktime_divns() is s64. The timeout_to_jiffies() currently
assigns the result of this ktime_divns() to unsigned long, which on 32 bit
systems may overflow. Furthermore, the result of this function is sometimes
also passed to functions which expect signed long, dma_fence_wait_timeout()
is one such example.

Fix this by adjusting the type of remaining_jiffies to s64, so we do not
suffer overflow there, and return a value limited to range of 0..INT_MAX,
which is safe for all usecases of this timeout.

The above overflow can be triggered if userspace passes in too large timeout
value, larger than INT_MAX / HZ seconds. The kernel detects it and complains
about "schedule_timeout: wrong timeout value %lx" and generates a warning
backtrace.

Note that this fixes commit 6cedb8b377 ("drm/msm: avoid using 'timespec'"),
because the previously used timespec_to_jiffies() function returned unsigned
long instead of s64:
static inline unsigned long timespec_to_jiffies(const struct timespec *value)

Fixes: 6cedb8b377 ("drm/msm: avoid using 'timespec'")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Rob Clark <robdclark@chromium.org>
Cc: stable@vger.kernel.org # 5.6+
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210917005913.157379-1-marex@denx.de
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Stephan Gerhold efb8a170a3 drm/msm: Fix devfreq NULL pointer dereference on a3xx
There is no devfreq on a3xx at the moment since gpu_busy is not
implemented. This means that msm_devfreq_init() will return early
and the entire devfreq setup is skipped.

However, msm_devfreq_active() and msm_devfreq_idle() are still called
unconditionally later, causing a NULL pointer dereference:

  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
  Internal error: Oops: 96000004 [#1] PREEMPT SMP
  CPU: 0 PID: 133 Comm: ring0 Not tainted 5.15.0-rc1 #4
  Hardware name: Longcheer L8150 (DT)
  pc : mutex_lock_io+0x2bc/0x2f0
  lr : msm_devfreq_active+0x3c/0xe0 [msm]
  Call trace:
   mutex_lock_io+0x2bc/0x2f0
   msm_gpu_submit+0x164/0x180 [msm]
   msm_job_run+0x54/0xe0 [msm]
   drm_sched_main+0x2b0/0x4a0 [gpu_sched]
   kthread+0x154/0x160
   ret_from_fork+0x10/0x20

Fix this by adding a check in msm_devfreq_active/idle() which ensures
that devfreq was actually initialized earlier.

Fixes: 9bc9557017 ("drm/msm: Devfreq tuning")
Reported-by: Nikita Travkin <nikita@trvn.ru>
Tested-by: Nikita Travkin <nikita@trvn.ru>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210913164556.16284-1-stephan@gerhold.net
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:53 -07:00
Kuogee Hsieh 9463b64d1a drm/msm/dp: only signal audio when disconnected detected at dp_pm_resume
Currently there is audio not working problem after system resume from suspend
if hdmi monitor stay plugged in at DUT. However this problem does not happen
at normal operation but at a particular test case. The root cause is DP driver
signal audio with connected state at resume which trigger audio trying to setup
audio data path through DP main link but failed due to display port is not setup
and enabled by upper layer framework yet. This patch only have DP driver signal
audio only when DP is in disconnected state so that audio option shows correct
state after system resume. DP driver will not signal audio with connected state
until display enabled executed by upper layer framework where display port is
setup completed and main link is running.

Changes in V2:
-- add details commit text

Fixes: afc9b8b6ba ("drm/msm/dp: signal audio plugged change at dp_pm_resume")
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1632932224-25102-1-git-send-email-khsieh@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-10-11 17:30:40 -07:00
Linus Torvalds fa58787605 linux-kselftest-kunit-fixes-5.15-rc6
This KUnit fixes update for Linux 5.15-rc6 consists of:
 
 - Fixes to address the structleak plugin causing the stack frame size
   to grow immensely when used with KUnit. Fixes include adding a new
   makefile to disable structleak and using it from KUnit iio, device
   property, thunderbolt, and bitfield tests to disable it.
 
 - KUnit framework reference count leak in kfree_at_end
 
 - KUnit tool fix to resolve conflict between --json and --raw_output
   and generate correct test output in either case.
 
 - kernel-doc warnings due to mismatched arg names
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Merge tag 'linux-kselftest-kunit-fixes-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kunit fixes from Shuah Khan:

 - Fixes to address the structleak plugin causing the stack frame size
   to grow immensely when used with KUnit. Fixes include adding a new
   makefile to disable structleak and using it from KUnit iio, device
   property, thunderbolt, and bitfield tests to disable it.

 - KUnit framework reference count leak in kfree_at_end

 - KUnit tool fix to resolve conflict between --json and --raw_output
   and generate correct test output in either case.

 - kernel-doc warnings due to mismatched arg names

* tag 'linux-kselftest-kunit-fixes-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: fix kernel-doc warnings due to mismatched arg names
  bitfield: build kunit tests without structleak plugin
  thunderbolt: build kunit tests without structleak plugin
  device property: build kunit tests without structleak plugin
  iio/test-format: build kunit tests without structleak plugin
  gcc-plugins/structleak: add makefile var for disabling structleak
  kunit: fix reference count leak in kfree_at_end
  kunit: tool: better handling of quasi-bool args (--json, --raw_output)
2021-10-11 17:25:08 -07:00
Linus Torvalds 459ea72c6c Merge branch 'for-5.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
 "All documentation / comment updates"

* 'for-5.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroupv2, docs: fix misinformation in "device controller" section
  cgroup/cpuset: Change references of cpuset_mutex to cpuset_rwsem
  docs/cgroup: remove some duplicate words
2021-10-11 17:16:41 -07:00
Chun-Kuang Hu 4157a441ff Revert "drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb"
This reverts commit c1ec54b7b5.

Commit c1ec54b7b5
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:

WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0

So revert that patch.

Reported-by: Enric Balletbo Serra <eballetbo@gmail.com>
Tested-by: Enric Balletbo Serra <eballetbo@gmail.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2021-10-12 08:02:27 +08:00
Chun-Kuang Hu 8a4a099f84 Revert "drm/mediatek: Remove struct cmdq_client"
This reverts commit f4be17cd5b.

Commit c1ec54b7b5
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:

WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0

So revert that patch and all the patches depend on that patch.

Reported-by: Enric Balletbo Serra <eballetbo@gmail.com>
Tested-by: Enric Balletbo Serra <eballetbo@gmail.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2021-10-12 08:02:06 +08:00