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Merge the pmdomain fixes for v7.2-rc[n] into the next branch, to allow
them to get tested together with the pmdomain changes that are targeted
for the next release.
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- OOB, UAF, NULL-deref fixes in core and picolcd, logitech, letsketch,
appleir and multitouch drivers (Georgiy Osokin, HyeongJun An, Lee
Jones, Manish Khadka, Maoyi Xie and Trung Nguyen)
- fix for integer wraparound (and corresponding regression selftest) in
hid-bpf (Yiyang Chen)
* tag 'hid-for-linus-2026070801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
selftests/hid: multitouch: test a large ContactCountMaximum
HID: multitouch: fix out-of-bounds bit access on mt_io_flags
selftests/hid: Cover hid_bpf_get_data() size overflow
selftests/hid: Load only requested struct_ops maps
HID: bpf: Fix hid_bpf_get_data() range check
HID: lg-g15: cancel pending work on remove to fix a use-after-free
HID: logitech-dj: Fix maxfield check in DJ short report validation
HID: core: Fix OOB read in hid_get_report for numbered reports
HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()
HID: appleir: fix UAF on pending key_up_timer in remove()
HID: letsketch: fix UAF on inrange_timer at driver unbind
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btintel_pcie_coredump_worker() handled three unrelated jobs in one
work item: collect a DRAM trace coredump, read the hardware exception
event, and read the firmware-trigger event. The worker walked three
flag bits at runtime and each interrupt path mutated multiple bits
to communicate which sub-jobs the worker should run, which made the
ownership rules for those bits hard to reason about and entangled
the trigger reason with the in-progress accounting.
Replace the single combined worker with three single-purpose ones,
each owning exactly one flag:
coredump_work -> btintel_pcie_dump_traces()
guarded by COREDUMP_INPROGRESS
hwexp_work -> btintel_pcie_read_hwexp()
guarded by CORE_HALTED (already permanent until
re-probe; HWEXP_INPROGRESS is now redundant
and removed)
fwtrigger_work -> btintel_pcie_dump_fwtrigger_event()
guarded by FWTRIGGER_DUMP_INPROGRESS
All three workers are queued on a shared ordered workqueue (renamed
coredump_workqueue -> dump_workqueue) so a companion event reader
(hwexp/fwtrigger) and the coredump always run FIFO. Companion work
is queued before coredump_work so dmp_hdr.event_type/event_id are
populated by the time dump_traces() consumes them, preserving the
original ordering.
Introduce btintel_pcie_queue_coredump() to centralize the coredump
trigger contract: it is the single writer of COREDUMP_INPROGRESS and
of dmp_hdr.trigger_reason, sets both atomically against concurrent
triggers, and rolls back the bit if the workqueue is disabled
(reset/remove in progress) so a later trigger after re-probe can
succeed. All four trigger sites (HWEXP IRQ, FW-trigger IRQ,
devcoredump user trigger, resume() D0 error path) go through the
helper.
Per-work guard bits are now cleared at the tail of each worker
rather than in the middle of the combined worker, which closes a
subtle race where a duplicate IRQ could observe a cleared bit and
requeue while the previous pass was still finalizing
dev_coredumpv().
reset_work() and remove() now disable_work_sync() all three workers
and, on the FLR-failure path, enable_work() all three to keep their
disable counters balanced. The PLDR/FLR-success contract (re-probe
re-INIT_WORKs everything with counter 0) is preserved.
No functional change to the dump payloads; this is a pure
restructuring of the worker dispatch and its synchronization.
Signed-off-by: Kiran K <kiran.k@intel.com>
Assisted-by: GitHub-Copilot:claude-4.7-opus
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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If a cable is bad, it stays bad. There is no need to flood the log with
messages about it. So go for a ratelimited version.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20260605090110.1514785-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usbio_disconnect() walks usbio->cli_list in reverse and uninitializes each
auxiliary device. auxiliary_device_uninit() drops the device reference, and
for an unbound child that can run usbio_auxdev_release() and free the
containing struct usbio_client.
list_for_each_entry_reverse() advances after the loop body by reading
client->link.prev. If the current client is freed by
auxiliary_device_uninit(), the iterator dereferences freed memory.
Use list_for_each_entry_safe_reverse() so the previous client is
cached before the body can drop the final reference. This preserves
reverse teardown order while keeping the next iterator cursor independent
of the current client's lifetime.
Validation reproduced this kernel report:
BUG: KASAN: slab-use-after-free in usbio_disconnect+0x12e/0x150
Call Trace:
<TASK>
dump_stack_lvl+0x66/0xa0
print_report+0xce/0x630
? usbio_disconnect+0x12e/0x150
? srso_alias_return_thunk+0x5/0xfbef5
? __virt_addr_valid+0x188/0x320
? usbio_disconnect+0x12e/0x150
kasan_report+0xe0/0x110
? usbio_disconnect+0x12e/0x150
usbio_disconnect+0x12e/0x150
usb_unbind_interface+0xf3/0x400
really_probe+0x316/0x660
__driver_probe_device+0x106/0x240
driver_probe_device+0x4a/0x110
__device_attach_driver+0xf1/0x1a0
? __pfx___device_attach_driver+0x10/0x10
bus_for_each_drv+0xf9/0x160
? __pfx_bus_for_each_drv+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? trace_hardirqs_on+0x18/0x130
? srso_alias_return_thunk+0x5/0xfbef5
? _raw_spin_unlock_irqrestore+0x44/0x60
__device_attach+0x133/0x2a0
? __pfx___device_attach+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? do_raw_spin_unlock+0x9a/0x100
? srso_alias_return_thunk+0x5/0xfbef5
device_initial_probe+0x55/0x70
bus_probe_device+0x4a/0xd0
device_add+0x9b9/0xc10
? __pfx_device_add+0x10/0x10
? _raw_spin_unlock_irqrestore+0x44/0x60
? srso_alias_return_thunk+0x5/0xfbef5
? lockdep_hardirqs_on_prepare+0xea/0x1a0
? srso_alias_return_thunk+0x5/0xfbef5
? usb_enable_lpm+0x3c/0x260
usb_set_configuration+0xb64/0xf20
usb_generic_driver_probe+0x5f/0x90
usb_probe_device+0x71/0x1b0
really_probe+0x46b/0x660
__driver_probe_device+0x106/0x240
driver_probe_device+0x4a/0x110
__device_attach_driver+0xf1/0x1a0
? __pfx___device_attach_driver+0x10/0x10
bus_for_each_drv+0xf9/0x160
? __pfx_bus_for_each_drv+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? trace_hardirqs_on+0x18/0x130
? srso_alias_return_thunk+0x5/0xfbef5
? _raw_spin_unlock_irqrestore+0x44/0x60
__device_attach+0x133/0x2a0
? __pfx___device_attach+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? do_raw_spin_unlock+0x9a/0x100
? srso_alias_return_thunk+0x5/0xfbef5
device_initial_probe+0x55/0x70
bus_probe_device+0x4a/0xd0
device_add+0x9b9/0xc10
? __pfx_device_add+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? add_device_randomness+0xb7/0xf0
usb_new_device+0x492/0x870
hub_event+0x1b10/0x29c0
? __pfx_hub_event+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? lock_acquire+0x187/0x300
? process_one_work+0x475/0xb90
? srso_alias_return_thunk+0x5/0xfbef5
? lock_release+0xc8/0x290
? srso_alias_return_thunk+0x5/0xfbef5
process_one_work+0x4d7/0xb90
? __pfx_process_one_work+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? srso_alias_return_thunk+0x5/0xfbef5
? __list_add_valid_or_report+0x37/0xf0
? __pfx_hub_event+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
worker_thread+0x2d8/0x570
? __pfx_worker_thread+0x10/0x10
kthread+0x1ad/0x1f0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x3c9/0x540
? __pfx_ret_from_fork+0x10/0x10
? srso_alias_return_thunk+0x5/0xfbef5
? __switch_to+0x2e9/0x730
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
Fixes: 121a0f839dbb ("usb: misc: Add Intel USBIO bridge driver")
Cc: stable <stable@kernel.org>
Assisted-by: Codex:gpt-5.5
Signed-off-by: Cen Zhang <zzzccc427@gmail.com>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://patch.msgid.link/20260618124029.3704089-1-zzzccc427@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit b145c3f29d62f71cc9d2d714e2d4ae4c8d3f863d.
The deduplication logic appears to cause issues with separate
SBU muxes. The mode-switch call on these (like gpio-sbu-mux)
never appeared, so no successful mode-switch happened. The more
high-end Parade PS883X redrivers are not affected due to being
retimer-switch. The revert fixes dp altmode mode-switch for both.
Tested on:
Lenovo Thinkbook 16 G7 QOY
Lenovo Ideapad 5 2in1 14Q8X9
Microsoft Windows Dev Kit 2023 (Blackrock)
Lenovo Thinkpad T14s G6
Fixes: b145c3f29d62 ("usb: typec: mux: avoid duplicated mux switches")
Cc: stable <stable@kernel.org>
Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260530-typc-mux-modeset-v1-1-64b0281e2cd6@oldschoolsolutions.biz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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List of power domains in arrays of 'struct rpmhpd' are sorted according
to index name (the define, e.g. RPMHPD_MX), not by actual numerical
value. Fix few sorting mistakes, so comparing the tables between
different devices will be easier. No functional impact - same binary.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Per errata[1]:
ERR050531: VPU_NOC power down handshake may hang during VC8000E/VPUMIX
power up/down cycling.
Description: VC8000E reset de-assertion edge and AXI clock may have a
timing issue.
Workaround: Set bit2 (vc8000e_clk_en) of BLK_CLK_EN_CSR to 0 to gate off
both AXI clock and VC8000E clock sent to VC8000E and AXI clock sent to
VPU_NOC m_v_2 interface during VC8000E power up(VC8000E reset is
de-asserted by HW)
Add a bool variable is_errata_err050531 in
'struct imx8m_blk_ctrl_domain_data' to represent whether the workaround
is needed. If is_errata_err050531 is true, first clear the clk before
powering up gpc, then enable the clk after powering up gpc.
[1] https://www.nxp.com/webapp/Download?colCode=IMX8MP_1P33A
Fixes: a1a5f15f7f6cb ("soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl")
Cc: stable@vger.kernel.org
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Using imx8mm_vpu_power_notifier() for i.MX8MP is wrong, as it ungates
the VPU clocks to provide the ADB clock, which is necessary on i.MX8MM,
but on i.MX8MP there is a separate gate (bit 3) for the NoC. So add
imx8mp_vpu_power_notifier() for i.MX8MP.
Fixes: a1a5f15f7f6cb ("soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl")
Cc: stable@vger.kernel.org
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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The MIPI DSI and CSI domains share control bits for clock and reset, which
can lead to incorrect behavior if one domain disables the shared resource
while the other is still active.
To fix the issue, introduce a shared MIPI PHY power domain to own the
common resources and make DSI and CSI its subdomains. This ensures the
shared bits are properly managed and not disabled while still in use.
Fixes: e9aa77d413c9 ("soc: imx: add i.MX93 media blk ctrl driver")
Cc: stable@vger.kernel.org
Signed-off-by: Guoniu Zhou <guoniu.zhou@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Update the probe function to utilize the new
typec_cable_altmode_unsupported() helper. If the cable doesn't support
DisplayPort altmode, don't initialize altmode_ops and prevent altmode
from being activated.
A captive cable shouldn't be checked; it may not provide discoverable
capability information, but it is inherently designed to support the
device's requirements.
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260626142702.1941182-4-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Update the probe function to utilize the new
typec_cable_altmode_unsupported() helper. If the cable doesn't support
Thunderbolt altmode, don't initialize altmode_ops and prevent altmode
from being activated.
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260626142702.1941182-3-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce typec_cable_altmode_unsupported function to evaluate whether an
alternate mode is restricted based on the connected cable's properties.
Implement validation logic that parses the cable's identity to catch
incompatible setups early. Alternate modes are restricted over:
- cables lacking an identity header
- passive cables with USB 2.0 speed
- active cables unless they have corresponding plugs
The function returns false if the cable is not registered or the identifier
is not set.
Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260626142702.1941182-2-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc
and frees ep0_req, then falls through to clean_up2 where ep0_req is
freed again when it is non-NULL.
Remove the redundant free from err_add_udc and keep the cleanup in
clean_up2 so the request is released exactly once.
Fixes: 776976a67ae2 ("usb: gadget: r8a66597-udc: cleanup error path")
Issue found using a prototype static analysis tool
and confirmed by code review.
Signed-off-by: Hongyan Xu <getshell@seu.edu.cn>
Signed-off-by: Slavin Liu <220245772@seu.edu.cn>
Link: https://patch.msgid.link/20260624140908.1282-1-getshell@seu.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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its capability
Some docks/Type-C dongles expose a malformed DP Capabilities VDO: they
claim a DFP_D (source) or UFP_D (sink) capability but leave the
corresponding pin assignment field empty. Such a device can never have
Alt Mode configured. Currently the driver still proceeds, which is
misleading and offers no diagnostic.
Per VESA DPAM v2.1a Section 5.4.1 (Table 5-6):
Case 1 (receptacle): A DP Source device receptacle (DFP_D) declares its
lane routing in the DP Source Pin field (Bits 15:8); a DP Sink device
receptacle (UFP_D) declares its lanes in the DP Sink Pin field
(Bits 23:16).
Case 2 (direct-attach plug): A DP Sink device plug (UFP_D) declares its
lane routing in the DP Source Pin field (Bits 15:8), and a DP Source
device plug (DFP_D) declares its lanes in the DP Sink Pin field
(Bits 23:16).
In either case the field holds the supported pin assignment values
(e.g. C/D/E); 00000000b means no pin assignment is supported for that
capability.
Reject such a DP Alt Mode VDO in dp_altmode_probe(): if the claimed
capability has no matching pin assignments, fail probe with -ENODEV,
releasing the SOP' plug reference on the error path.
Signed-off-by: Madhu M <madhu.m@intel.com>
Reviewed-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260623003215.4077711-1-madhu.m@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Define named masks for Power Status fields (connection and source/sink)
and reuse them consistently for both field extraction and value
construction. This avoids raw bit usage, keeps the definitions aligned.
No functional change.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://patch.msgid.link/fdf373fd9d98ba68c72cfa9e89b4e9bddf06aea8.1779214249.git.radhey.shyam.pandey@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Operating without an interrupt line and using the driver's polling path
is valid. So move the log level to debug instead of warning.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/7d14634eb5f4f7f2e217cd0080e3288eb63fc940.1779214249.git.radhey.shyam.pandey@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Log an error when the vendor ID read fails or returns zero, including
the I2C error code and register value, and initialize the vendor ID
variable to avoid logging an uninitialized value on read failure.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/0aa487d3f054b34689e95760fefd72f7571f64c9.1779214249.git.radhey.shyam.pandey@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace reset_control_assert()/deassert() with reset_control_reset().
For dwc3-xilinx, reset_control_reset() routes via the zynqmp reset
driver and uses PM_RESET_ACTION_PULSE, which performs assert and
deassert in firmware. This results in a single SMC call issuing a
reset pulse and taking the IP out of reset.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://patch.msgid.link/6a5e4e25d84d6abc971f1669739aae4d3146700f.1779518171.git.radhey.shyam.pandey@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add missing space before '*/' in an inline comment to follow
the kernel coding style.
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://patch.msgid.link/8e6f53ad4eef8babb3c72ae9fac5130342760da9.1779518171.git.radhey.shyam.pandey@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce generic cpuidle driver on s390. Use a two stage approach to
handle idle scenarios and use idle governor for idle stage selection.
Two stages are, from shallow to deep, idle polling and enabled wait.
Suggested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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The files has no real user because CEX2 and CEX3 device drivers
are removed, also remove these empty files.
Fixes: 5ac8c72462cd ("s390/zcrypt: remove CEX2 and CEX3 device drivers")
Signed-off-by: Rongguang Wei <weirongguang@kylinos.cn>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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`iio_event_getfd()` creates the event file descriptor with
`anon_inode_getfd()`, which allocates a new fd, creates the anonymous
file and installs it in the process fd table before returning to the
caller.
The IIO code resets the event FIFO after `anon_inode_getfd()` has returned,
but before `IIO_GET_EVENT_FD_IOCTL` has copied the fd number to userspace.
But since fd tables are shared between threads, another thread can guess
the newly allocated fd number and issue a `read()` on it as soon as the fd
has been installed.
This means the `kfifo_to_user()` in `iio_event_chrdev_read()` can run in
parallel with the `kfifo_reset_out()` in `iio_event_getfd()`.
The kfifo documentation says that `kfifo_reset_out()` is only safe when it
is called from the reader thread and there is only one concurrent reader.
Otherwise it is dangerous and must be handled in the same way as
`kfifo_reset()`.
If that happens, `kfifo_to_user()` can advance the FIFO `out` index based
on state from before the reset, after the reset has already moved the `out`
index to the current `in` index. That can leave the FIFO with an `out`
index past the `in` index. A later `read()` can then see an underflowed
FIFO length and copy more data than the event FIFO buffer contains. This
can result in an out-of-bounds read and leak adjacent kernel memory to
userspace.
Move the FIFO reset before `anon_inode_getfd()`. At that point the event fd is
marked busy, but the new fd has not been installed yet, so userspace cannot
access it while the FIFO is reset.
Fixes: b91accafbb10 ("iio:event: Fix and cleanup locking")
Reported-by: Codex:gpt-5.5
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The chaoskey driver has a use-after-free bug in its release routine.
If the user closes the device file after the USB device has been
unplugged, a debugging log statement will try to access the
usb_interface structure after it has been deallocated:
BUG: KASAN: slab-use-after-free in dev_driver_string (drivers/base/core.c:2406)
Read of size 8 at addr ffff888168e8a0b8 by task chaoskey_raw_re/10106
Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
print_report (mm/kasan/report.c:378 mm/kasan/report.c:482)
kasan_report (mm/kasan/report.c:595)
dev_driver_string (drivers/base/core.c:2406)
__dynamic_dev_dbg (lib/dynamic_debug.c:906)
chaoskey_release (drivers/usb/misc/chaoskey.c:323)
__fput (fs/file_table.c:510)
fput_close_sync (fs/file_table.c:615)
__x64_sys_close (fs/open.c:1507 fs/open.c:1492 fs/open.c:1492)
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
The driver's last reference to the interface structure is dropped in
the chaoskey_free() routine, so the code must not use the interface --
even in a debugging statement -- after that routine returns.
(Exception: If we know that another reference is held by someone else,
such as the device core while the disconnect routine runs, there's no
problem. Thanks to Johan Hovold for pointing this out.)
Since the bad access is part of an unimportant debugging statement,
we can fix the problem simply by removing the whole statement.
Reported-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Closes: https://lore.kernel.org/linux-usb/20EC9664-054E-438B-B411-2145D347F97B@gmail.com/
Tested-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: 66e3e591891d ("usb: Add driver for Altus Metrum ChaosKey device (v2)")
Cc: stable <stable@kernel.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/bb5b1dc6-eb59-43e1-8d26-51e658e88bbe@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support "UP Xtreme i12" and I2C/PWM/UART/SPI pins mapping data.
Signed-off-by: Gary Wang <is0124@gmail.com>
Reviewed-by: Thomas Richard <thomas.richard@bootlin.com>
Acked-by: Linus Walleij <linusw@kernel.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Thomas Richard <thomas.richard@bootlin.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Add i2c0, i2c1, pwm0, uart1, ssp2 pin groups & functions in tgllp_soc_data
for device id INTC1055. The pinctrl-upboard driver set the correct pin
function corresponding to these data.
Signed-off-by: Gary Wang <is0124@gmail.com>
Acked-by: Linus Walleij <linusw@kernel.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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clk_get_rate() can return 0 when the clock provider is not properly
configured or the clock is unmanaged. The driver uses wdt_freq as a
divisor directly in airoha_wdt_probe() to compute max_timeout and in
airoha_wdt_get_timeleft() to compute the remaining time, which results
in a division by zero.
Add a check for wdt_freq == 0 in probe and return -EINVAL with
dev_err_probe() to prevent the division by zero and provide a
diagnostic message.
Fixes: 3cf67f3769b8 ("watchdog: Add support for Airoha EN7851 watchdog")
Signed-off-by: Wayen Yan <win847@gmail.com>
Link: https://lore.kernel.org/r/178347932594.81327.4834644880399144119@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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When a watchdog governor is unregistered, it updates existing watchdog
devices that were using this governor by falling back to `default_gov`.
If the governor being unregistered is currently set as `default_gov`,
the `default_gov` is never cleared. This leads to 2 use-after-free
issues:
1. New watchdog devices registered after this point will inherit the
dangling `default_gov`.
2. Existing watchdog devices using the unregistered governor will have
their `wdd->gov` reassigned to the dangling `default_gov`.
Fix the UAF by clearing `default_gov` if it matches the governor being
unregistered.
Fixes: da0d12ff2b82 ("watchdog: pretimeout: add panic pretimeout governor")
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20260707101803.3598173-1-tzungbi@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The ov7740_remove() function had a severe teardown order bug where it
destroyed the driver's mutex before freeing the V4L2 control handler
which relies on that mutex, leading to a use-after-destroy kernel panic.
Furthermore, the driver explicitly called v4l2_ctrl_handler_free() and
mutex_destroy() sequentially, but then called ov7740_free_controls()
which invokes both of them a second time, resulting in a double-free.
This patch fixes the issue by unregistering the subdevice first, and
relying exclusively on ov7740_free_controls() to safely tear down the
mutex and control handler in the correct order.
Fixes: 39c5c4471b8d ("media: i2c: Add the ov7740 image sensor driver")
Cc: stable@vger.kernel.org
Signed-off-by: Biren Pandya <birenpandya@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The ov7740_remove() function unconditionally called pm_runtime_get_sync()
but completely ignored the return value. If the device was already in an
error state or disconnected, this could lead to an unbalanced PM runtime
usage count or attempt to communicate with an unresponsive device.
Disable Runtime PM first, then see if the device is active, and if so,
power it off.
Signed-off-by: Biren Pandya <birenpandya@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The ov02a10_check_hwcfg() function calls fwnode_handle_put(ep)
immediately after allocating and parsing the endpoint. However, it
subsequently calls fwnode_property_read_u32() using the same 'ep'
handle, leading to a potential use-after-free.
Additionally, reading the optional 'ovti,mipi-clock-voltage' property
used to overwrite the 'ret' variable. If the property was missing,
'ret' would become negative, and this failure code would be incorrectly
returned at the end of the function, causing probe to fail entirely.
Fix the use-after-free by moving fwnode_property_read_u32() before
the endpoint is parsed and freed. Avoid the error leak by not
assigning the result of fwnode_property_read_u32() to 'ret'.
Fixes: 91807efbe8ec ("media: i2c: add OV02A10 image sensor driver")
Cc: stable@vger.kernel.org
Signed-off-by: Biren Pandya <birenpandya@gmail.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The GSP SetRegistry command currently stores its registry entries in a
fixed-size array. That makes every additional runtime-dependent registry
object require reshaping the command data structure at the same time as the
feature that needs the new entry.
Keep the existing registry contents unchanged, but store them in a KVec so
SetRegistry can be constructed dynamically. The constructor now returns a
Result to propagate allocation failures while the command payload layout is
still computed from the final entry list.
Cc: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Zhi Wang <zhiw@nvidia.com>
Link: https://patch.msgid.link/20260701062622.3499033-7-zhiw@nvidia.com
[acourbot: remove orphan comment.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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FSP message handling currently uses FspResponse for the common response
prefix containing the MCTP header, NVDM header and command response
payload.
That name is too broad once other FSP response formats reuse the same
prefix and append protocol-specific payloads. Rename it to
FspResponseHeader so subsequent response structures can embed the common
header without overloading the meaning of FspResponse.
Suggested-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/all/DJMBI9CN2Z67.2T02SR8TAWEC5@nvidia.com/
Signed-off-by: Zhi Wang <zhiw@nvidia.com>
Link: https://patch.msgid.link/20260701062622.3499033-4-zhiw@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-07-01 (igc, igb)
Kohei Enju adds ethtool support for get/set hash key on igc and adds
setting of skb hash type based on values from Rx descriptor on igb.
Takashi Kozu adds ethtool support for get/set hash key on igb.
Faizal adds support for forcing link speed via ethtool when
autonegotiation is disabled on the igc driver.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
igc: add support for forcing link speed without autonegotiation
igc: replace goto out with direct returns in igc_config_fc_after_link_up()
igc: move autoneg-enabled settings into igc_handle_autoneg_enabled()
igc: remove unused autoneg_failed field
igb: set skb hash type from RSS_TYPE
igb: allow configuring RSS key via ethtool set_rxfh
igb: expose RSS key via ethtool get_rxfh
igb: prepare for RSS key get/set support
igc: allow configuring RSS key via ethtool set_rxfh
igc: expose RSS key via ethtool get_rxfh
igc: prepare for RSS key get/set support
====================
Link: https://patch.msgid.link/20260701210303.1745310-1-anthony.l.nguyen@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The V3D_SUBMIT_CPU CPU jobs take user-supplied offsets and indices and
consume them at exec time without checking that the accesses stay inside
their BO:
- TIMESTAMP_QUERY and RESET_TIMESTAMP_QUERY write one u64 per query
into bo[0] at a fully user-controlled per-query offset.
- COPY_TIMESTAMP_QUERY copies one u64 per query into bo[0] at
offset + i * stride, and reads each result from a user-controlled
offset in the source bo[1].
- COPY_PERFORMANCE_QUERY writes nperfmons * DRM_V3D_MAX_PERF_COUNTERS
counter slots plus an availability slot into bo[0] at the same
geometry.
- INDIRECT_CSD reads three u32 work-group counts from bo[0] at a
user-controlled offset, then writes each count back into the
indirect BO at a user-controlled u32 index (wg_uniform_offsets[]).
A render-node user (DRM_RENDER_ALLOW, no master, no capability) can make
the handlers read or write past a BO's vmap mapping.
Validate the full access extent against the BO size once the BOs are
looked up, before the job is queued, rejecting out-of-range geometry
with -EINVAL. The copy extent offset + (count - 1) * stride + write_size
is computed in u64, mirroring the u8 * pointer arithmetic in the
executors: (count - 1) * stride is a u32 * u32 product that is exact in
u64, so one overflow check on the total guards the bound. The
performance slot count and the bare timestamp, copy-source and indirect
offsets are computed in u64 the same way, so a user value cannot wrap
the comparison.
Fixes: 18b8413b25b7 ("drm/v3d: Create a CPU job extension for a indirect CSD job")
Fixes: 9ba0ff3e083f ("drm/v3d: Create a CPU job extension for the timestamp query job")
Fixes: 34a101e64296 ("drm/v3d: Create a CPU job extension for the reset timestamp job")
Fixes: 6745f3e44a20 ("drm/v3d: Create a CPU job extension to copy timestamp query to a buffer")
Fixes: 209e8d2695ee ("drm/v3d: Create a CPU job extension for the copy performance query job")
Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patch.msgid.link/20260707221334.3854433-1-michael.bommarito@gmail.com
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Fixes typos in dev_err_probe(): 'cdn3,usb*-phy' -> 'cdns3,usb*-phy'.
Signed-off-by: Ihor Matushchak <ihor.matushchak@foobox.net>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://patch.msgid.link/20260703120136.19852-1-ihor.matushchak@foobox.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The typec_altmode structure contains a 'struct device' object
that cannot be allocated on the stack because of its size, even
when ignoring the lifetime rules:
drivers/usb/typec/ucsi/ucsi_huawei_gaokun.c:326:13: error: stack frame size (1456) exceeds limit (1280) in 'gaokun_ucsi_usb_notify_ind' [-Werror,-Wframe-larger-than]
326 | static void gaokun_ucsi_usb_notify_ind(struct gaokun_ucsi *uec)
Since the altmode is always associated with a port here, move
it into the port object and avoid at least the stack allocation
issue.
Fixes: 1c2b66a7d725 ("usb: ucsi: huawei_gaokun: support mode switching")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Pengyu Luo <mitltlatltl@gmail.com>
Link: https://patch.msgid.link/20260618143341.1900221-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The driver has an OF match table wired to .of_match_table, but does
not export the table with MODULE_DEVICE_TABLE().
Add the missing MODULE_DEVICE_TABLE(of, ...) entry so module alias
information is generated for OF based module autoloading.
This is a source-level fix. It does not claim dynamic hardware
reproduction; the evidence is the driver-owned match table, its use by
the platform driver, and the missing module alias publication.
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Reviewed-by: Romain Gantois <romain.gantois@bootlin.com>
Link: https://patch.msgid.link/20260704124714.18404-1-pengpeng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb_device_dump() allocates a buffer for formatting
/sys/kernel/debug/usb/devices output text.
This buffer can be allocated with kmalloc() as there's nothing special
about it to go directly to the page allocator.
kmalloc() provides a better API that does not require ugly casts and
kfree() does not need to know the size of the freed object.
Performance difference between kmalloc() and __get_free_pages() is not
measurable as both allocators take an object/page from a per-CPU list for
fast path allocations.
For the slow path the performance is anyway determined by the amount of
reclaim involved rather than by what allocator is used.
Replace use of __get_free_pages() with kmalloc() and free_pages() with
kfree().
Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://patch.msgid.link/20260701-b4-usb-v2-2-272807df4b64@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ochi-dbg allocates buffers for formatting of various dump outputs.
These buffers can be allocated with kmalloc() as there's nothing special
about them to go directly to the page allocator.
kmalloc() provides a better API that does not require ugly casts and
kfree() does not need to know the size of the freed object.
Performance difference between kmalloc() and __get_free_pages() is not
measurable as both allocators take an object/page from a per-CPU list for
fast path allocations.
For the slow path the performance is anyway determined by the amount of
reclaim involved rather than by what allocator is used.
Replace use of get_zeroed_page() with kzalloc() and free_page() with
kfree().
While on it, drop the NULL checks in debug_close(). buf is never NULL
here because all the open handlers return -ENOMEM when alloc_buffer()
fails, and kfree() can handle a NULL buf->page.
Link: https://lore.kernel.org/all/635405e4-9423-4a25-a6e7-e03c8ea0bcbe@redhat.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://patch.msgid.link/20260701-b4-usb-v2-1-272807df4b64@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The current ucsi_data structure inside ucsi_debugfs_entry caps the
response payload layout to exactly 16 bytes via low and high 64-bit
fields. However, standard UCSI specifications define core data
structures that require messages larger than this 16-byte boundary.
Without this expansion, vital telemetry metrics cannot be captured. For
example, the GET_CONNECTOR_STATUS -> Voltage Reading fields, and the
GET_LPM_PPM_INFO -> HW Version fields reside starting at or beyond byte
offset 16. Under the current implementation, reading the debugfs
'response' attribute truncates this extra data, rendering these
extended operational metrics unreadable.
Fix this by expanding the ucsi_data structure with an 'ext' field to
provide structural capacity for payloads extending beyond 16 bytes.
Update ucsi_resp_show() to print the extended field block directly
prepended to the high/low data stream to ensure readability while
maintaining structural continuity.
Signed-off-by: Madhu M <madhu.m@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260630132435.458563-1-madhu.m@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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While svdm_consume_modes() already prevents mode_data.altmodes from
exceeding ALTMODE_DISCOVERY_MAX during SVDM discovery, defensively
bounding array iteration indices against ALTMODE_DISCOVERY_MAX in altmode
registration and unregistration helpers guarantees protection against
out-of-bounds accesses in the event of memory corruption.
Ensure that tcpm_register_plug_altmodes() is also bounded alongside
tcpm_register_partner_altmodes() and tcpm_unregister_altmodes.
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: RD Babiera <rdbabiera@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260629225729.2749896-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ucsi_register() creates per-instance debugfs entries, but
ucsi_unregister() keeps them around until ucsi_destroy().
Drivers like ucsi_glink that unregister/register the same UCSI
instance across remoteproc restart then try to create an already
existing debugfs directory and log:
debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi'
Unregister debugfs entries as part of ucsi_unregister(), and
clear ucsi->debugfs after freeing it so repeated unregister
paths remain safe.
Assisted-by: Codex:GPT-5.5
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Fixes: df0383ffad64 ("usb: typec: ucsi: Add debugfs for ucsi commands")
Tested-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> # X1E80100 CRD
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260611-usci-unregister-debugfs-v1-1-f4a518a94f27@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the code enqueue work items using {queue|mod}_delayed_work(),
using system_long_wq. This workqueue should be used when long works are
expected and it is a per-cpu workqueue.
The function(s) end up calling __queue_delayed_work(), which set a global
timer that could fire anywhere, enqueuing the work where the timer fired.
Unbound works could benefit from scheduler task placement, to optimize
performance and power consumption. Long work shouldn't stick to a single
CPU.
Recently, a new unbound workqueue specific for long running work has
been added:
c116737e972e ("workqueue: Add system_dfl_long_wq for long unbound works")
Since the workqueue work doesn't rely on per-cpu variables, there is no
obvious reason that justify the use of a per-cpu workqueue. So change
system_long_wq with system_dfl_long_wq so that the work may benefit from
scheduler task placement.
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260525074857.30816-1-marco.crivellari@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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irq_alloc_domain_generic_chips() allocates generic chip data that must
be freed via irq_domain_remove_generic_chips(). The devres action
mvebu_gpio_remove_irq_domain() only called irq_domain_remove(), which
only frees the generic chips if IRQ_DOMAIN_FLAG_DESTROY_GC is set.
Call irq_domain_remove_generic_chips() explicitly before
irq_domain_remove() instead.
Fixes: 812d47889a8e ("gpio/mvebu: Use irq_domain_add_linear")
Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260707232358.1218077-1-rosenp@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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Reformat function declaration.
Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Link: https://patch.msgid.link/20260708090058.307365-4-manuelebner@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename the local variable 'bAllow' to 'allow' in
rtw_cmd_filter() to fix a checkpatch CamelCase warning.
Signed-off-by: Anirban Bose <boses156@gmail.com>
Link: https://patch.msgid.link/20260708061904.4136-1-boses156@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adhere to Linux kernel coding style.
Reported by checkpatch:
WARNING: please, no space before tabs
Struct definitions in drivers/staging/rtl8723bs/include/wifi.h had
inconsistent spacing.
Signed-off-by: David C.C.M. Gall <david.ccm.gall@googlemail.com>
Link: https://patch.msgid.link/ak4kZZ3CQE69cjSm@fudgebox
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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rt1711h_probe() registers the TCPCI port before requesting the interrupt
and enabling alert interrupts. If either of those later steps fails, the
probe function returns without unregistering the TCPCI port. The explicit
unregister currently only happens from the remove callback.
Register a devres action immediately after tcpci_register_port() succeeds,
so tcpci_unregister_port() runs on later probe failures and on driver
detach. Drop the remove callback to avoid unregistering the same port
twice.
This issue was identified during our ongoing static-analysis research while
reviewing kernel code.
Fixes: 302c570bf36e ("usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs")
Cc: stable <stable@kernel.org>
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Link: https://patch.msgid.link/20260706145312.37260-1-mhun512@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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VDO() second parameter is VDM type (bit 15): 1 for SVDM, 0 for UVDM.
Using 'vdo ? 2 : 1' corrupts SVID low bit when vdo is non-NULL
(2 << 15 = BIT(16)). Enter Mode is always SVDM, hardcode to 1.
Fixes: 8face9aa57c8 ("usb: typec: Add parameter for the VDO to typec_altmode_enter()")
Cc: stable <stable@kernel.org>
Signed-off-by: Andy Yan <andyshrk@163.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260604105059.18750-1-andyshrk@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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