Commit graph

1048063 commits

Author SHA1 Message Date
Rafael J. Wysocki
fddbdd20c8 PM: runtime: Add safety net to supplier device release
[ Upstream commit d1579e6119 ]

Because refcount_dec_not_one() returns true if the target refcount
becomes saturated, it is generally unsafe to use its return value as
a loop termination condition, but that is what happens when a device
link's supplier device is released during runtime PM suspend
operations and on device link removal.

To address this, introduce pm_runtime_release_supplier() to be used
in the above cases which will check the supplier device's runtime
PM usage counter in addition to the refcount_dec_not_one() return
value, so the loop can be terminated in case the rpm_active refcount
value becomes invalid, and update the code in question to use it as
appropriate.

This change is not expected to have any visible functional impact.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:44 +01:00
Weili Qian
4586d164c3 crypto: hisilicon/hpre - fix memory leak in hpre_curve25519_src_init()
[ Upstream commit 51fa916b81 ]

hpre_curve25519_src_init() allocates memory for 'ptr' before calling
memcmp(). If memcmp() returns 0, the function will return '-EINVAL'
without freeing memory.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:44 +01:00
Peter Gonda
c0713b3017 crypto: ccp - Move SEV_INIT retry for corrupted data
[ Upstream commit e423b9d75e ]

Move the data corrupted retry of SEV_INIT into the
__sev_platform_init_locked() function. This is for upcoming INIT_EX
support as well as helping direct callers of
__sev_platform_init_locked() which currently do not support the
retry.

Signed-off-by: Peter Gonda <pgonda@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Brijesh Singh <brijesh.singh@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Marc Orr <marcorr@google.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Rientjes <rientjes@google.com>
Cc: John Allen <john.allen@amd.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:44 +01:00
Thierry Reding
a8186a1009 arm64: tegra: Adjust length of CCPLEX cluster MMIO region
[ Upstream commit 2b14cbd643 ]

The Tegra186 CCPLEX cluster register region is 4 MiB is length, not 4
MiB - 1. This was likely presumed to be the "limit" rather than length.
Fix it up.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:43 +01:00
Biwen Li
77e5d1974a arm64: dts: ls1028a-qds: move rtc node to the correct i2c bus
[ Upstream commit cbe9d948ea ]

The i2c rtc is on i2c2 bus not i2c1 bus, so fix it in dts.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Li Yang <leoyang.lil@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:43 +01:00
Paul Moore
d978295bb5 audit: ensure userspace is penalized the same as the kernel when under pressure
[ Upstream commit 8f110f5306 ]

Due to the audit control mutex necessary for serializing audit
userspace messages we haven't been able to block/penalize userspace
processes that attempt to send audit records while the system is
under audit pressure.  The result is that privileged userspace
applications have a priority boost with respect to audit as they are
not bound by the same audit queue throttling as the other tasks on
the system.

This patch attempts to restore some balance to the system when under
audit pressure by blocking these privileged userspace tasks after
they have finished their audit processing, and dropped the audit
control mutex, but before they return to userspace.

Reported-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Tested-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:43 +01:00
Jingwen Chen
305f07b93d drm/amd/amdgpu: fix gmc bo pin count leak in SRIOV
[ Upstream commit 948e7ce014 ]

[Why]
gmc bo will be pinned during loading amdgpu and reset in SRIOV while
only unpinned in unload amdgpu

[How]
add amdgpu_in_reset and sriov judgement to skip pin bo

v2: fix wrong judgement

Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Reviewed-by: Horace Chen <horace.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:43 +01:00
Jingwen Chen
8662d0c6a3 drm/amd/amdgpu: fix psp tmr bo pin count leak in SRIOV
[ Upstream commit 85dfc1d692 ]

[Why]
psp tmr bo will be pinned during loading amdgpu and reset in SRIOV while
only unpinned in unload amdgpu

[How]
add amdgpu_in_reset and sriov judgement to skip pin bo

v2: fix wrong judgement

Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Reviewed-by: Horace Chen <horace.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:42 +01:00
Ulf Hansson
29d6a92af5 mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO
[ Upstream commit 8c3e5b74b9 ]

The mmc core takes a specific path to support initializing of a
non-standard SDIO card. This is triggered by looking for the card-quirk,
MMC_QUIRK_NONSTD_SDIO.

In mmc_sdio_init_card() this gets rather messy, as it causes the code to
bail out earlier, compared to the usual path. This leads to that the OCR
doesn't get saved properly in card->ocr. Fortunately, only omap_hsmmc has
been using the MMC_QUIRK_NONSTD_SDIO and is dealing with the issue, by
assigning a hardcoded value (0x80) to card->ocr from an ->init_card() ops.

To make the behaviour consistent, let's instead rely on the core to save
the OCR in card->ocr during initialization.

Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/e7936cff7fc24d187ef2680d3b4edb0ade58f293.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:42 +01:00
Biju Das
384a5e27a4 mmc: tmio: reinit card irqs in reset routine
[ Upstream commit e315b1f3a1 ]

Refactor the code so that card detect irqs are always reenabled after a
reset. This avoids doing it manually all over the code or forgetting to
do this in the future.

Reported-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
[wsa: added a comment when 'native_hotplug' has to be set]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20211103122646.64422-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:42 +01:00
Zhou Qingyang
c3d14b3585 media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach()
[ Upstream commit 3af86b0469 ]

In hexium_attach(dev, info), saa7146_vv_init() is called to allocate
a new memory for dev->vv_data. saa7146_vv_release() will be called on
failure of saa7146_register_device(). There is a dereference of
dev->vv_data in saa7146_vv_release(), which could lead to a NULL
pointer dereference on failure of saa7146_vv_init().

Fix this bug by adding a check of saa7146_vv_init().

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_VIDEO_HEXIUM_GEMINI=m show no new warnings,
and our static analyzer no longer warns about this code.

Link: https://lore.kernel.org/linux-media/20211203154030.111210-1-zhou1615@umn.edu
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:42 +01:00
Mikhail Rudenko
84155d2b06 media: rockchip: rkisp1: use device name for debugfs subdir name
[ Upstream commit c2611e479f ]

While testing Rockchip RK3399 with both ISPs enabled, a dmesg error
was observed:
```
[   15.559141] debugfs: Directory 'rkisp1' with parent '/' already present!
```

Fix it by using the device name for the debugfs subdirectory name
instead of the driver name, thus preventing name collision.

Link: https://lore.kernel.org/linux-media/20211010175457.438627-1-mike.rudenko@gmail.com
Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:42 +01:00
Sean Young
87d0b81702 media: igorplugusb: receiver overflow should be reported
[ Upstream commit 8fede658e7 ]

Without this, some IR will be missing mid-stream and we might decode
something which never really occurred.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:41 +01:00
Alistair Francis
26d516434d HID: i2c-hid-of: Expose the touchscreen-inverted properties
[ Upstream commit b60d3c803d ]

Allow the touchscreen-inverted-x/y device tree properties to control the
HID_QUIRK_X_INVERT/HID_QUIRK_Y_INVERT quirks for the hid-input device.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Acked-by: Rob Herring <robh@kernel.org>
[bentiss: silence checkpatch warnings]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211208124045.61815-3-alistair@alistair23.me
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:41 +01:00
Alistair Francis
bc13af2535 HID: quirks: Allow inverting the absolute X/Y values
[ Upstream commit fd8d135b2c ]

Add a HID_QUIRK_X_INVERT/HID_QUIRK_Y_INVERT quirk that can be used
to invert the X/Y values.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
[bentiss: silence checkpatch warning]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211208124045.61815-2-alistair@alistair23.me
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:41 +01:00
Felix Kuehling
4a635b9d5b drm/amdkfd: Fix error handling in svm_range_add
[ Upstream commit 726be40607 ]

Add null-pointer check after the last svm_range_new call. This was
originally reported by Zhou Qingyang <zhou1615@umn.edu> based on a
static analyzer.

To avoid duplicating the unwinding code from svm_range_handle_overlap,
I merged the two functions into one.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Zhou Qingyang <zhou1615@umn.edu>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:41 +01:00
Paolo Abeni
684815ff76 bpf: Do not WARN in bpf_warn_invalid_xdp_action()
[ Upstream commit 2cbad98903 ]

The WARN_ONCE() in bpf_warn_invalid_xdp_action() can be triggered by
any bugged program, and even attaching a correct program to a NIC
not supporting the given action.

The resulting splat, beyond polluting the logs, fouls automated tools:
e.g. a syzkaller reproducers using an XDP program returning an
unsupported action will never pass validation.

Replace the WARN_ONCE with a less intrusive pr_warn_once().

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/016ceec56e4817ebb2a9e35ce794d5c917df572c.1638189075.git.pabeni@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:41 +01:00
David Gow
451ee28aed kunit: Don't crash if no parameters are generated
[ Upstream commit 37dbb4c7c7 ]

It's possible that a parameterised test could end up with zero
parameters. At the moment, the test function will nevertheless be called
with NULL as the parameter. Instead, don't try to run the test code, and
just mark the test as SKIPped.

Reported-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:40 +01:00
Suresh Kumar
584d9e3e74 net: bonding: debug: avoid printing debug logs when bond is not notifying peers
[ Upstream commit fee32de284 ]

Currently "bond_should_notify_peers: slave ..." messages are printed whenever
"bond_should_notify_peers" function is called.

+++
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Received LACPDU on port 1
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Rx Machine: Port=1, Last State=6, Curr State=6
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): partner sync=1
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
...
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Received LACPDU on port 2
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Rx Machine: Port=2, Last State=6, Curr State=6
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): partner sync=1
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
+++

This is confusing and can also clutter up debug logs.
Print logs only when the peer notification happens.

Signed-off-by: Suresh Kumar <suresh2514@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:40 +01:00
Borislav Petkov
0f962554d0 x86/mce: Mark mce_read_aux() noinstr
[ Upstream commit db6c996d6c ]

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0x681: call to mce_read_aux() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-10-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:40 +01:00
Borislav Petkov
b26d3a8f82 x86/mce: Mark mce_end() noinstr
[ Upstream commit b4813539d3 ]

It is called by the #MC handler which is noinstr.

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0xbd6: call to memset() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-9-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:40 +01:00
Borislav Petkov
f166c0b3ac x86/mce: Mark mce_panic() noinstr
[ Upstream commit 3c7ce80a81 ]

And allow instrumentation inside it because it does calls to other
facilities which will not be tagged noinstr.

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0xc73: call to mce_panic() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-8-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:39 +01:00
Borislav Petkov
f2bde2aeb1 x86/mce: Allow instrumentation during task work queueing
[ Upstream commit 4fbce464db ]

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0xdb1: call to queue_task_work() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-6-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:39 +01:00
Alex Elder
3903e62795 ARM: dts: qcom: sdx55: fix IPA interconnect definitions
[ Upstream commit c0d6316c23 ]

The first two interconnects defined for IPA on the SDX55 SoC are
really two parts of what should be represented as a single path
between IPA and system memory.

Fix this by combining the "memory-a" and "memory-b" interconnects
into a single "memory" interconnect.

Reported-by: David Heidelberg <david@ixit.cz>
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:39 +01:00
Baochen Qiang
f6d165a8fa ath11k: Avoid false DEADLOCK warning reported by lockdep
[ Upstream commit 767c94caf0 ]

With CONFIG_LOCKDEP=y and CONFIG_DEBUG_SPINLOCK=y, lockdep reports
below warning:

[  166.059415] ============================================
[  166.059416] WARNING: possible recursive locking detected
[  166.059418] 5.15.0-wt-ath+ #10 Tainted: G        W  O
[  166.059420] --------------------------------------------
[  166.059421] kworker/0:2/116 is trying to acquire lock:
[  166.059423] ffff9905f2083160 (&srng->lock){+.-.}-{2:2}, at: ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059440]
               but task is already holding lock:
[  166.059442] ffff9905f2083230 (&srng->lock){+.-.}-{2:2}, at: ath11k_dp_process_reo_status+0x95/0x2d0 [ath11k]
[  166.059491]
               other info that might help us debug this:
[  166.059492]  Possible unsafe locking scenario:

[  166.059493]        CPU0
[  166.059494]        ----
[  166.059495]   lock(&srng->lock);
[  166.059498]   lock(&srng->lock);
[  166.059500]
                *** DEADLOCK ***

[  166.059501]  May be due to missing lock nesting notation

[  166.059502] 3 locks held by kworker/0:2/116:
[  166.059504]  #0: ffff9905c0081548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1f6/0x660
[  166.059511]  #1: ffff9d2400a5fe68 ((debug_obj_work).work){+.+.}-{0:0}, at: process_one_work+0x1f6/0x660
[  166.059517]  #2: ffff9905f2083230 (&srng->lock){+.-.}-{2:2}, at: ath11k_dp_process_reo_status+0x95/0x2d0 [ath11k]
[  166.059532]
               stack backtrace:
[  166.059534] CPU: 0 PID: 116 Comm: kworker/0:2 Kdump: loaded Tainted: G        W  O      5.15.0-wt-ath+ #10
[  166.059537] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0059.2019.1112.1124 11/12/2019
[  166.059539] Workqueue: events free_obj_work
[  166.059543] Call Trace:
[  166.059545]  <IRQ>
[  166.059547]  dump_stack_lvl+0x56/0x7b
[  166.059552]  __lock_acquire+0xb9a/0x1a50
[  166.059556]  lock_acquire+0x1e2/0x330
[  166.059560]  ? ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059571]  _raw_spin_lock_bh+0x33/0x70
[  166.059574]  ? ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059584]  ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059594]  ath11k_dp_tx_send_reo_cmd+0x3f/0x130 [ath11k]
[  166.059605]  ath11k_dp_rx_tid_del_func+0x221/0x370 [ath11k]
[  166.059618]  ath11k_dp_process_reo_status+0x22f/0x2d0 [ath11k]
[  166.059632]  ? ath11k_dp_service_srng+0x2ea/0x2f0 [ath11k]
[  166.059643]  ath11k_dp_service_srng+0x2ea/0x2f0 [ath11k]
[  166.059655]  ath11k_pci_ext_grp_napi_poll+0x1c/0x70 [ath11k_pci]
[  166.059659]  __napi_poll+0x28/0x230
[  166.059664]  net_rx_action+0x285/0x310
[  166.059668]  __do_softirq+0xe6/0x4d2
[  166.059672]  irq_exit_rcu+0xd2/0xf0
[  166.059675]  common_interrupt+0xa5/0xc0
[  166.059678]  </IRQ>
[  166.059679]  <TASK>
[  166.059680]  asm_common_interrupt+0x1e/0x40
[  166.059683] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70
[  166.059686] Code: 83 c7 18 e8 2a 95 43 ff 48 89 ef e8 22 d2 43 ff 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 63 2e 40 ff 65 8b 05 8c 59 97 5c 85 c0 74 0a 5b 5d c3 e8 00 6a
[  166.059689] RSP: 0018:ffff9d2400a5fca0 EFLAGS: 00000206
[  166.059692] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000006
[  166.059694] RDX: 0000000000000000 RSI: ffffffffa404879b RDI: 0000000000000001
[  166.059696] RBP: ffff9905c0053000 R08: 0000000000000001 R09: 0000000000000001
[  166.059698] R10: ffff9d2400a5fc50 R11: 0000000000000001 R12: ffffe186c41e2840
[  166.059700] R13: 0000000000000001 R14: ffff9905c78a1c68 R15: 0000000000000001
[  166.059704]  free_debug_processing+0x257/0x3d0
[  166.059708]  ? free_obj_work+0x1f5/0x250
[  166.059712]  __slab_free+0x374/0x5a0
[  166.059718]  ? kmem_cache_free+0x2e1/0x370
[  166.059721]  ? free_obj_work+0x1f5/0x250
[  166.059724]  kmem_cache_free+0x2e1/0x370
[  166.059727]  free_obj_work+0x1f5/0x250
[  166.059731]  process_one_work+0x28b/0x660
[  166.059735]  ? process_one_work+0x660/0x660
[  166.059738]  worker_thread+0x37/0x390
[  166.059741]  ? process_one_work+0x660/0x660
[  166.059743]  kthread+0x176/0x1a0
[  166.059746]  ? set_kthread_struct+0x40/0x40
[  166.059749]  ret_from_fork+0x22/0x30
[  166.059754]  </TASK>

Since these two lockes are both initialized in ath11k_hal_srng_setup,
they are assigned with the same key. As a result lockdep suspects that
the task is trying to acquire the same lock (due to same key) while
already holding it, and thus reports the DEADLOCK warning. However as
they are different spinlock instances, the warning is false positive.

On the other hand, even no dead lock indeed, this is a major issue for
upstream regression testing as it disables lockdep functionality.

Fix it by assigning separate lock class key for each srng->lock.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211209011949.151472-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:39 +01:00
Heiko Carstens
271842c326 selftests/ftrace: make kprobe profile testcase description unique
[ Upstream commit e5992f373c ]

Commit 32f6e5da83 ("selftests/ftrace: Add kprobe profile testcase")
added a new kprobes testcase, but has a description which does not
describe what the test case is doing and is duplicating the description
of another test case.

Therefore change the test case description, so it is unique and then
allows easily to tell which test case actually passed or failed.

Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:39 +01:00
Iwona Winiarska
8bb1290e90 gpio: aspeed-sgpio: Convert aspeed_sgpio.lock to raw_spinlock
[ Upstream commit ab39d6988d ]

The gpio-aspeed-sgpio driver implements an irq_chip which need to be
invoked from hardirq context. Since spin_lock() can sleep with
PREEMPT_RT, it is no longer legal to invoke it while interrupts are
disabled.
This also causes lockdep to complain about:
[   25.919465] [ BUG: Invalid wait context ]
because aspeed_sgpio.lock (spin_lock_t) is taken under irq_desc.lock
(raw_spinlock_t).
Let's use of raw_spinlock_t instead of spinlock_t.

Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:38 +01:00
Iwona Winiarska
d9332eab23 gpio: aspeed: Convert aspeed_gpio.lock to raw_spinlock
[ Upstream commit 61a7904b6a ]

The gpio-aspeed driver implements an irq_chip which need to be invoked
from hardirq context. Since spin_lock() can sleep with PREEMPT_RT, it is
no longer legal to invoke it while interrupts are disabled.
This also causes lockdep to complain about:
[    0.649797] [ BUG: Invalid wait context ]
because aspeed_gpio.lock (spin_lock_t) is taken under irq_desc.lock
(raw_spinlock_t).
Let's use of raw_spinlock_t instead of spinlock_t.

Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:38 +01:00
Russell King (Oracle)
3c2a24aa34 net: phy: prefer 1000baseT over 1000baseKX
[ Upstream commit f20f94f7f5 ]

The PHY settings table is supposed to be sorted by descending match
priority - in other words, earlier entries are preferred over later
entries.

The order of 1000baseKX/Full and 1000baseT/Full is such that we
prefer 1000baseKX/Full over 1000baseT/Full, but 1000baseKX/Full is
a lot rarer than 1000baseT/Full, and thus is much less likely to
be preferred.

This causes phylink problems - it means a fixed link specifying a
speed of 1G and full duplex gets an ethtool linkmode of 1000baseKX/Full
rather than 1000baseT/Full as would be expected - and since we offer
userspace a software emulation of a conventional copper PHY, we want
to offer copper modes in preference to anything else. However, we do
still want to allow the rarer modes as well.

Hence, let's reorder these two modes to prefer copper.

Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/E1muvFO-00F6jY-1K@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:38 +01:00
Antoine Tenart
0abd3f9903 net-sysfs: update the queue counts in the unregistration path
[ Upstream commit d7dac08341 ]

When updating Rx and Tx queue kobjects, the queue count should always be
updated to match the queue kobjects count. This was not done in the net
device unregistration path, fix it. Tracking all queue count updates
will allow in a following up patch to detect illegal updates.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:38 +01:00
Sebastian Gottschall
f7bae4d459 ath10k: Fix tx hanging
[ Upstream commit e8a91863eb ]

While running stress tests in roaming scenarios (switching ap's every 5
seconds, we discovered a issue which leads to tx hangings of exactly 5
seconds while or after scanning for new accesspoints. We found out that
this hanging is triggered by ath10k_mac_wait_tx_complete since the
empty_tx_wq was not wake when the num_tx_pending counter reaches zero.
To fix this, we simply move the wake_up call to htt_tx_dec_pending,
since this call was missed on several locations within the ath10k code.

Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20210505085806.11474-1-s.gottschall@dd-wrt.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:38 +01:00
Wen Gong
21b07b470a ath11k: avoid deadlock by change ieee80211_queue_work for regd_update_work
[ Upstream commit ed05c7cf12 ]

When enable debug config, it print below warning while shut down wlan
interface shuh as run "ifconfig wlan0 down".

The reason is because ar->regd_update_work is ran once, and it is will
call wiphy_lock(ar->hw->wiphy) in function ath11k_regd_update() which
is running in workqueue of ieee80211_local queued by ieee80211_queue_work().
Another thread from "ifconfig wlan0 down" will also accuqire the lock
by wiphy_lock(sdata->local->hw.wiphy) in function ieee80211_stop(), and
then it call ieee80211_stop_device() to flush_workqueue(local->workqueue),
this will wait the workqueue of ieee80211_local finished. Then deadlock
will happen easily if the two thread run meanwhile.

Below warning disappeared after this change.

[  914.088798] ath11k_pci 0000:05:00.0: mac remove interface (vdev 0)
[  914.088806] ath11k_pci 0000:05:00.0: mac stop 11d scan
[  914.088810] ath11k_pci 0000:05:00.0: mac stop 11d vdev id 0
[  914.088827] ath11k_pci 0000:05:00.0: htc ep 2 consumed 1 credits (total 0)
[  914.088841] ath11k_pci 0000:05:00.0: send 11d scan stop vdev id 0
[  914.088849] ath11k_pci 0000:05:00.0: htc insufficient credits ep 2 required 1 available 0
[  914.088856] ath11k_pci 0000:05:00.0: htc insufficient credits ep 2 required 1 available 0
[  914.096434] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 16
[  914.096442] ath11k_pci 0000:05:00.0: htc ep 2 got 1 credits (total 1)
[  914.096481] ath11k_pci 0000:05:00.0: htc ep 2 consumed 1 credits (total 0)
[  914.096491] ath11k_pci 0000:05:00.0: WMI vdev delete id 0
[  914.111598] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 16
[  914.111628] ath11k_pci 0000:05:00.0: htc ep 2 got 1 credits (total 1)
[  914.114659] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 20
[  914.114742] ath11k_pci 0000:05:00.0: htc rx completion ep 2 skb         pK-error
[  914.115977] ath11k_pci 0000:05:00.0: vdev delete resp for vdev id 0
[  914.116685] ath11k_pci 0000:05:00.0: vdev 00:03:7f:29:61:11 deleted, vdev_id 0

[  914.117583] ======================================================
[  914.117592] WARNING: possible circular locking dependency detected
[  914.117600] 5.16.0-rc1-wt-ath+ #1 Tainted: G           OE
[  914.117611] ------------------------------------------------------
[  914.117618] ifconfig/2805 is trying to acquire lock:
[  914.117628] ffff9c00a62bb548 ((wq_completion)phy0){+.+.}-{0:0}, at: flush_workqueue+0x87/0x470
[  914.117674]
               but task is already holding lock:
[  914.117682] ffff9c00baea07d0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_stop+0x38/0x180 [mac80211]
[  914.117872]
               which lock already depends on the new lock.

[  914.117880]
               the existing dependency chain (in reverse order) is:
[  914.117888]
               -> #3 (&rdev->wiphy.mtx){+.+.}-{4:4}:
[  914.117910]        __mutex_lock+0xa0/0x9c0
[  914.117930]        mutex_lock_nested+0x1b/0x20
[  914.117944]        reg_process_self_managed_hints+0x3a/0xb0 [cfg80211]
[  914.118093]        wiphy_regulatory_register+0x47/0x80 [cfg80211]
[  914.118229]        wiphy_register+0x84f/0x9c0 [cfg80211]
[  914.118353]        ieee80211_register_hw+0x6b1/0xd90 [mac80211]
[  914.118486]        ath11k_mac_register+0x6af/0xb60 [ath11k]
[  914.118550]        ath11k_core_qmi_firmware_ready+0x383/0x4a0 [ath11k]
[  914.118598]        ath11k_qmi_driver_event_work+0x347/0x4a0 [ath11k]
[  914.118656]        process_one_work+0x228/0x670
[  914.118669]        worker_thread+0x4d/0x440
[  914.118680]        kthread+0x16d/0x1b0
[  914.118697]        ret_from_fork+0x22/0x30
[  914.118714]
               -> #2 (rtnl_mutex){+.+.}-{4:4}:
[  914.118736]        __mutex_lock+0xa0/0x9c0
[  914.118751]        mutex_lock_nested+0x1b/0x20
[  914.118767]        rtnl_lock+0x17/0x20
[  914.118783]        ath11k_regd_update+0x15a/0x260 [ath11k]
[  914.118841]        ath11k_regd_update_work+0x15/0x20 [ath11k]
[  914.118897]        process_one_work+0x228/0x670
[  914.118909]        worker_thread+0x4d/0x440
[  914.118920]        kthread+0x16d/0x1b0
[  914.118934]        ret_from_fork+0x22/0x30
[  914.118948]
               -> #1 ((work_completion)(&ar->regd_update_work)){+.+.}-{0:0}:
[  914.118972]        process_one_work+0x1fa/0x670
[  914.118984]        worker_thread+0x4d/0x440
[  914.118996]        kthread+0x16d/0x1b0
[  914.119010]        ret_from_fork+0x22/0x30
[  914.119023]
               -> #0 ((wq_completion)phy0){+.+.}-{0:0}:
[  914.119045]        __lock_acquire+0x146d/0x1cf0
[  914.119057]        lock_acquire+0x19b/0x360
[  914.119067]        flush_workqueue+0xae/0x470
[  914.119084]        ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.119260]        ieee80211_do_stop+0x5d7/0x830 [mac80211]
[  914.119409]        ieee80211_stop+0x45/0x180 [mac80211]
[  914.119557]        __dev_close_many+0xb3/0x120
[  914.119573]        __dev_change_flags+0xc3/0x1d0
[  914.119590]        dev_change_flags+0x29/0x70
[  914.119605]        devinet_ioctl+0x653/0x810
[  914.119620]        inet_ioctl+0x193/0x1e0
[  914.119631]        sock_do_ioctl+0x4d/0xf0
[  914.119649]        sock_ioctl+0x262/0x340
[  914.119665]        __x64_sys_ioctl+0x96/0xd0
[  914.119678]        do_syscall_64+0x3d/0xd0
[  914.119694]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  914.119709]
               other info that might help us debug this:

[  914.119717] Chain exists of:
                 (wq_completion)phy0 --> rtnl_mutex --> &rdev->wiphy.mtx

[  914.119745]  Possible unsafe locking scenario:

[  914.119752]        CPU0                    CPU1
[  914.119758]        ----                    ----
[  914.119765]   lock(&rdev->wiphy.mtx);
[  914.119778]                                lock(rtnl_mutex);
[  914.119792]                                lock(&rdev->wiphy.mtx);
[  914.119807]   lock((wq_completion)phy0);
[  914.119819]
                *** DEADLOCK ***

[  914.119827] 2 locks held by ifconfig/2805:
[  914.119837]  #0: ffffffffba3dc010 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x17/0x20
[  914.119872]  #1: ffff9c00baea07d0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_stop+0x38/0x180 [mac80211]
[  914.120039]
               stack backtrace:
[  914.120048] CPU: 0 PID: 2805 Comm: ifconfig Tainted: G           OE     5.16.0-rc1-wt-ath+ #1
[  914.120064] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011
[  914.120074] Call Trace:
[  914.120084]  <TASK>
[  914.120094]  dump_stack_lvl+0x73/0xa4
[  914.120119]  dump_stack+0x10/0x12
[  914.120135]  print_circular_bug.isra.44+0x221/0x2e0
[  914.120165]  check_noncircular+0x106/0x150
[  914.120203]  __lock_acquire+0x146d/0x1cf0
[  914.120215]  ? __lock_acquire+0x146d/0x1cf0
[  914.120245]  lock_acquire+0x19b/0x360
[  914.120259]  ? flush_workqueue+0x87/0x470
[  914.120286]  ? lockdep_init_map_type+0x6b/0x250
[  914.120310]  flush_workqueue+0xae/0x470
[  914.120327]  ? flush_workqueue+0x87/0x470
[  914.120344]  ? lockdep_hardirqs_on+0xd7/0x150
[  914.120391]  ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.120565]  ? ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.120736]  ieee80211_do_stop+0x5d7/0x830 [mac80211]
[  914.120906]  ieee80211_stop+0x45/0x180 [mac80211]
[  914.121060]  __dev_close_many+0xb3/0x120
[  914.121081]  __dev_change_flags+0xc3/0x1d0
[  914.121109]  dev_change_flags+0x29/0x70
[  914.121131]  devinet_ioctl+0x653/0x810
[  914.121149]  ? __might_fault+0x77/0x80
[  914.121179]  inet_ioctl+0x193/0x1e0
[  914.121194]  ? inet_ioctl+0x193/0x1e0
[  914.121218]  ? __might_fault+0x77/0x80
[  914.121238]  ? _copy_to_user+0x68/0x80
[  914.121266]  sock_do_ioctl+0x4d/0xf0
[  914.121283]  ? inet_stream_connect+0x60/0x60
[  914.121297]  ? sock_do_ioctl+0x4d/0xf0
[  914.121329]  sock_ioctl+0x262/0x340
[  914.121347]  ? sock_ioctl+0x262/0x340
[  914.121362]  ? exit_to_user_mode_prepare+0x13b/0x280
[  914.121388]  ? syscall_enter_from_user_mode+0x20/0x50
[  914.121416]  __x64_sys_ioctl+0x96/0xd0
[  914.121430]  ? br_ioctl_call+0x90/0x90
[  914.121445]  ? __x64_sys_ioctl+0x96/0xd0
[  914.121465]  do_syscall_64+0x3d/0xd0
[  914.121482]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  914.121497] RIP: 0033:0x7f0ed051737b
[  914.121513] Code: 0f 1e fa 48 8b 05 15 3b 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 3a 0d 00 f7 d8 64 89 01 48
[  914.121527] RSP: 002b:00007fff7be38b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[  914.121544] RAX: ffffffffffffffda RBX: 00007fff7be38ba0 RCX: 00007f0ed051737b
[  914.121555] RDX: 00007fff7be38ba0 RSI: 0000000000008914 RDI: 0000000000000004
[  914.121566] RBP: 00007fff7be38c60 R08: 000000000000000a R09: 0000000000000001
[  914.121576] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000fffffffe
[  914.121586] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000
[  914.121620]  </TASK>

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211201071745.17746-2-quic_wgong@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:37 +01:00
Wander Lairson Costa
bcf404b305 rcutorture: Avoid soft lockup during cpu stall
[ Upstream commit 5ff7c9f9d7 ]

If we use the module stall_cpu option, we may get a soft lockup warning
in case we also don't pass the stall_cpu_block option.

Introduce the stall_no_softlockup option to avoid a soft lockup on
cpu stall even if we don't use the stall_cpu_block option.

Signed-off-by: Wander Lairson Costa <wander@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:37 +01:00
Shaul Triebitz
d63ddcee9f iwlwifi: mvm: avoid clearing a just saved session protection id
[ Upstream commit 8e967c137d ]

When scheduling a session protection the id is saved but
then it may be cleared when calling iwl_mvm_te_clear_data
(if a previous session protection is currently active).
Fix it by saving the id after calling iwl_mvm_te_clear_data.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204130722.b0743a588d14.I098fef6677d0dab3ef1b6183ed206a10bab01eb2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:37 +01:00
Johannes Berg
59b49457fb iwlwifi: mvm: synchronize with FW after multicast commands
[ Upstream commit db66abeea3 ]

If userspace installs a lot of multicast groups very quickly, then
we may run out of command queue space as we send the updates in an
asynchronous fashion (due to locking concerns), and the CPU can
create them faster than the firmware can process them. This is true
even when mac80211 has a work struct that gets scheduled.

Fix this by synchronizing with the firmware after sending all those
commands - outside of the iteration we can send a synchronous echo
command that just has the effect of the CPU waiting for the prior
asynchronous commands to finish. This also will cause fewer of the
commands to be sent to the firmware overall, because the work will
only run once when rescheduled multiple times while it's running.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=213649
Suggested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reported-by: Maximilian Ernestus <maximilian@ernestus.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204083238.51aea5b79ea4.I88a44798efda16e9fe480fb3e94224931d311b29@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:37 +01:00
Kieran Bingham
b52954c779 arm64: dts: renesas: Fix thermal bindings
[ Upstream commit 82ce79391d ]

The binding node names for the thermal zones are not successfully
validated by the dt-schemas.

Fix the validation by changing from sensor-thermalN or thermal-sensor-N
to sensorN-thermal.  Provide node labels of the form sensorN_thermal to
ensure consistency with the other platform implementations.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20211104224033.3997504-1-kieran.bingham+renesas@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:36 +01:00
Mika Westerberg
2f804823b5 thunderbolt: Runtime PM activate both ends of the device link
[ Upstream commit f3380cac0c ]

If protocol tunnels are already up when the driver is loaded, for
instance if the boot firmware implements connection manager of its own,
runtime PM reference count of the consumer devices behind the tunnel
might have been increased already before the device link is created but
the supplier device runtime PM reference count is not. This leads to a
situation where the supplier (the Thunderbolt driver) can runtime
suspend even if it should not because the corresponding protocol tunnel
needs to be up causing the devices to be removed from the corresponding
native bus.

Prevent this from happening by making both sides of the link runtime PM
active briefly. The pm_runtime_put() for the consumer (PCIe
root/downstream port, xHCI) then allows it to runtime suspend again but
keeps the supplier runtime resumed the whole time it is runtime active.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:36 +01:00
Mauro Carvalho Chehab
0c044e39d5 media: m920x: don't use stack on USB reads
[ Upstream commit a2ab06d7c4 ]

Using stack-allocated pointers for USB message data don't work.
This driver is almost OK with that, except for the I2C read
logic.

Fix it by using a temporary read buffer, just like on all other
calls to m920x_read().

Link: https://lore.kernel.org/all/ccc99e48-de4f-045e-0fe4-61e3118e3f74@mida.se/
Reported-by: rkardell@mida.se
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:36 +01:00
Tsuchiya Yuto
6aaff2d7c9 media: atomisp: fix "variable dereferenced before check 'asd'"
[ Upstream commit ac56760a8b ]

There are two occurrences where the variable 'asd' is dereferenced
before check. Fix this issue by using the variable after the check.

Link: https://lore.kernel.org/linux-media/20211122074122.GA6581@kili/

Link: https://lore.kernel.org/linux-media/20211201141904.47231-1-kitakar@gmail.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:36 +01:00
Zhou Qingyang
a2e962b2d8 media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach()
[ Upstream commit 348df80353 ]

In hexium_attach(dev, info), saa7146_vv_init() is called to allocate
a new memory for dev->vv_data. In hexium_detach(), saa7146_vv_release()
will be called and there is a dereference of dev->vv_data in
saa7146_vv_release(), which could lead to a NULL pointer dereference
on failure of saa7146_vv_init() according to the following logic.

Both hexium_attach() and hexium_detach() are callback functions of
the variable 'extension', so there exists a possible call chain directly
from hexium_attach() to hexium_detach():

hexium_attach(dev, info) -- fail to alloc memory to dev->vv_data
	|		    		in saa7146_vv_init().
	|
	|
hexium_detach() -- a dereference of dev->vv_data in saa7146_vv_release()

Fix this bug by adding a check of saa7146_vv_init().

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_VIDEO_HEXIUM_ORION=m show no new warnings,
and our static analyzer no longer warns about this code.

Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:36 +01:00
Niklas Söderlund
d747b4831d media: rcar-vin: Update format alignment constraints
[ Upstream commit da6911f330 ]

This change fixes two issues with the size constraints for buffers.

- There is no width alignment constraint for RGB formats. Prior to this
  change they were treated as YUV and as a result were more restricted
  than needed. Add a new check to differentiate between the two.

- The minimum width and height supported is 5x2, not 2x4, this is an
  artifact from the driver's soc-camera days. Fix this incorrect
  assumption.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:35 +01:00
James Hilliard
1c9bbda87c media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds.
[ Upstream commit c8ed7d2f61 ]

Some uvc devices appear to require the maximum allowed USB timeout
for GET_CUR/SET_CUR requests.

So lets just bump the UVC control timeout to 5 seconds which is the
same as the usb ctrl get/set defaults:
USB_CTRL_GET_TIMEOUT 5000
USB_CTRL_SET_TIMEOUT 5000

It fixes the following runtime warnings:
   Failed to query (GET_CUR) UVC control 11 on unit 2: -110 (exp. 1).
   Failed to query (SET_CUR) UVC control 3 on unit 2: -110 (exp. 2).

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:35 +01:00
Laurent Pinchart
4d6a98ce80 drm: rcar-du: Fix CRTC timings when CMM is used
[ Upstream commit f0ce591dc9 ]

When the CMM is enabled, an offset of 25 pixels must be subtracted from
the HDS (horizontal display start) and HDE (horizontal display end)
registers. Fix the timings calculation, and take this into account in
the mode validation.

This fixes a visible horizontal offset in the image with VGA monitors.
HDMI monitors seem to be generally more tolerant to incorrect timings,
but may be affected too.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:35 +01:00
Joerg Roedel
30bd6733ef x86/mm: Flush global TLB when switching to trampoline page-table
[ Upstream commit 71d5049b05 ]

Move the switching code into a function so that it can be re-used and
add a global TLB flush. This makes sure that usage of memory which is
not mapped in the trampoline page-table is reliably caught.

Also move the clearing of CR4.PCIDE before the CR3 switch because the
cr4_clear_bits() function will access data not mapped into the
trampoline page-table.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211202153226.22946-4-joro@8bytes.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:35 +01:00
Xiongwei Song
1b4422befe floppy: Add max size check for user space request
[ Upstream commit 545a32498c ]

We need to check the max request size that is from user space before
allocating pages. If the request size exceeds the limit, return -EINVAL.
This check can avoid the warning below from page allocator.

WARNING: CPU: 3 PID: 16525 at mm/page_alloc.c:5344 current_gfp_context include/linux/sched/mm.h:195 [inline]
WARNING: CPU: 3 PID: 16525 at mm/page_alloc.c:5344 __alloc_pages+0x45d/0x500 mm/page_alloc.c:5356
Modules linked in:
CPU: 3 PID: 16525 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:__alloc_pages+0x45d/0x500 mm/page_alloc.c:5344
Code: be c9 00 00 00 48 c7 c7 20 4a 97 89 c6 05 62 32 a7 0b 01 e8 74 9a 42 07 e9 6a ff ff ff 0f 0b e9 a0 fd ff ff 40 80 e5 3f eb 88 <0f> 0b e9 18 ff ff ff 4c 89 ef 44 89 e6 45 31 ed e8 1e 76 ff ff e9
RSP: 0018:ffffc90023b87850 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff92004770f0b RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000033 RDI: 0000000000010cc1
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff81bb4686 R11: 0000000000000001 R12: ffffffff902c1960
R13: 0000000000000033 R14: 0000000000000000 R15: ffff88804cf64a30
FS:  0000000000000000(0000) GS:ffff88802cd00000(0063) knlGS:00000000f44b4b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000002c921000 CR3: 000000004f507000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
 __get_free_pages+0x8/0x40 mm/page_alloc.c:5418
 raw_cmd_copyin drivers/block/floppy.c:3113 [inline]
 raw_cmd_ioctl drivers/block/floppy.c:3160 [inline]
 fd_locked_ioctl+0x12e5/0x2820 drivers/block/floppy.c:3528
 fd_ioctl drivers/block/floppy.c:3555 [inline]
 fd_compat_ioctl+0x891/0x1b60 drivers/block/floppy.c:3869
 compat_blkdev_ioctl+0x3b8/0x810 block/ioctl.c:662
 __do_compat_sys_ioctl+0x1c7/0x290 fs/ioctl.c:972
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Reported-by: syzbot+23a02c7df2cf2bc93fa2@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211116131033.27685-1-sxwjean@me.com
Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:34 +01:00
Neal Liu
eeefb3436d usb: uhci: add aspeed ast2600 uhci support
[ Upstream commit 554abfe2ea ]

Enable ast2600 uhci quirks.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20211126100021.2331024-1-neal_liu@aspeedtech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:34 +01:00
Kishon Vijay Abraham I
750f28d69b arm64: dts: ti: j721e-main: Fix 'dtbs_check' in serdes_ln_ctrl node
[ Upstream commit 3f92a5be60 ]

Fix 'dtbs_check' in serdes_ln_ctrl (mux@4080) node by changing the node
name to mux-controller@4080.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211126084555.17797-3-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:34 +01:00
Kishon Vijay Abraham I
e785275d78 arm64: dts: ti: j7200-main: Fix 'dtbs_check' serdes_ln_ctrl node
[ Upstream commit 4d39849063 ]

Fix 'dtbs_check' in serdes_ln_ctrl (serdes-ln-ctrl@4080) node by
changing the node name to mux-controller@4080.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211126084555.17797-2-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:34 +01:00
Hans de Goede
94168f47f9 ACPI / x86: Add not-present quirk for the PCI0.SDHB.BRC1 device on the GPD win
[ Upstream commit 57d2dbf710 ]

The GPD win and its sibling the GPD pocket (99% the same electronics in a
different case) use a PCI wifi card. But the ACPI tables on both variants
contain a bug where the SDIO MMC controller for SDIO wifi cards is enabled
despite this. This SDIO MMC controller has a PCI0.SDHB.BRC1 child-device
which _PS3 method sets a GPIO causing the PCI wifi card to turn off.

At the moment there is a pretty ugly kludge in the sdhci-acpi.c code,
just to work around the bug in the DSDT of this single design. This can
be solved cleaner/simply with a quirk overriding the _STA return of the
broken PCI0.SDHB.BRC1 PCI0.SDHB.BRC1 child with a status value of 0,
so that its power_manageable flag gets cleared, avoiding this problem.

Note that even though it is not used, the _STA method for the MMC
controller is deliberately not overridden. If the status of the MMC
controller were forced to 0 it would never get suspended, which would
cause these mini-laptops to not reach S0i3 level when suspended.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:34 +01:00
Hans de Goede
10f2c10c0e ACPI / x86: Allow specifying acpi_device_override_status() quirks by path
[ Upstream commit ba46e42e92 ]

Not all ACPI-devices have a HID + UID, allow specifying quirks for
acpi_device_override_status() by path too.

Note this moves the path/HID+UID check to after the CPU + DMI checks
since the path lookup is somewhat costly.

This way this lookup is only done on devices where the other checks
match.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:04:33 +01:00