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In support of investigating an initialization failure report [1],
cxl_test was updated to register mock memory-devices after the mock
root-port/bus device had been registered. That led to cxl_test crashing
with a use-after-free bug with the following signature:
cxl_port_attach_region: cxl region3: cxl_host_bridge.0:port3 decoder3.0 add: mem0:decoder7.0 @ 0 next: cxl_switch_uport.0 nr_eps: 1 nr_targets: 1
cxl_port_attach_region: cxl region3: cxl_host_bridge.0:port3 decoder3.0 add: mem4:decoder14.0 @ 1 next: cxl_switch_uport.0 nr_eps: 2 nr_targets: 1
cxl_port_setup_targets: cxl region3: cxl_switch_uport.0:port6 target[0] = cxl_switch_dport.0 for mem0:decoder7.0 @ 0
1) cxl_port_setup_targets: cxl region3: cxl_switch_uport.0:port6 target[1] = cxl_switch_dport.4 for mem4:decoder14.0 @ 1
[..]
cxld_unregister: cxl decoder14.0:
cxl_region_decode_reset: cxl_region region3:
mock_decoder_reset: cxl_port port3: decoder3.0 reset
2) mock_decoder_reset: cxl_port port3: decoder3.0: out of order reset, expected decoder3.1
cxl_endpoint_decoder_release: cxl decoder14.0:
[..]
cxld_unregister: cxl decoder7.0:
3) cxl_region_decode_reset: cxl_region region3:
Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6bc3: 0000 [#1] PREEMPT SMP PTI
[..]
RIP: 0010:to_cxl_port+0x8/0x60 [cxl_core]
[..]
Call Trace:
<TASK>
cxl_region_decode_reset+0x69/0x190 [cxl_core]
cxl_region_detach+0xe8/0x210 [cxl_core]
cxl_decoder_kill_region+0x27/0x40 [cxl_core]
cxld_unregister+0x5d/0x60 [cxl_core]
At 1) a region has been established with 2 endpoint decoders (7.0 and
14.0). Those endpoints share a common switch-decoder in the topology
(3.0). At teardown, 2), decoder14.0 is the first to be removed and hits
the "out of order reset case" in the switch decoder. The effect though
is that region3 cleanup is aborted leaving it in-tact and
referencing decoder14.0. At 3) the second attempt to teardown region3
trips over the stale decoder14.0 object which has long since been
deleted.
The fix here is to recognize that the CXL specification places no
mandate on in-order shutdown of switch-decoders, the driver enforces
in-order allocation, and hardware enforces in-order commit. So, rather
than fail and leave objects dangling, always remove them.
In support of making cxl_region_decode_reset() always succeed,
cxl_region_invalidate_memregion() failures are turned into warnings.
Crashing the kernel is ok there since system integrity is at risk if
caches cannot be managed around physical address mutation events like
CXL region destruction.
A new device_for_each_child_reverse_from() is added to cleanup
port->commit_end after all dependent decoders have been disabled. In
other words if decoders are allocated 0->1->2 and disabled 1->2->0 then
port->commit_end only decrements from 2 after 2 has been disabled, and
it decrements all the way to zero since 1 was disabled previously.
Link: http://lore.kernel.org/20241004212504.1246-1-gourry@gourry.net [1]
Cc: stable@vger.kernel.org
Fixes: 176baefb2eb5 ("cxl/hdm: Commit decoder state to hardware")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Zijun Hu <quic_zijuhu@quicinc.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/172964782781.81806.17902885593105284330.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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In order to ensure root CXL ports are enabled upon cxl_acpi_probe()
when the 'cxl_port' driver is built as a module, arrange for the
module to be pre-loaded or built-in.
The "Fixes:" but no "Cc: stable" on this patch reflects that the issue
is merely by inspection since the bug that triggered the discovery of
this potential problem [1] is fixed by other means. However, a stable
backport should do no harm.
Fixes: 8dd2bc0f8e02 ("cxl/mem: Add the cxl_mem driver")
Link: http://lore.kernel.org/20241004212504.1246-1-gourry@gourry.net [1]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/172964781969.81806.17276352414854540808.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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It turns out since its original introduction, pre-2.6.12,
bus_rescan_devices() has skipped devices that might be in the process of
attaching or detaching from their driver. For CXL this behavior is
unwanted and expects that cxl_bus_rescan() is a probe barrier.
That behavior is simple enough to achieve with bus_for_each_dev() paired
with call to device_attach(), and it is unclear why bus_rescan_devices()
took the position of lockless consumption of dev->driver which is racy.
The "Fixes:" but no "Cc: stable" on this patch reflects that the issue
is merely by inspection since the bug that triggered the discovery of
this potential problem [1] is fixed by other means. However, a stable
backport should do no harm.
Fixes: 8dd2bc0f8e02 ("cxl/mem: Add the cxl_mem driver")
Link: http://lore.kernel.org/20241004212504.1246-1-gourry@gourry.net [1]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/172964781104.81806.4277549800082443769.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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When the CXL subsystem is built-in the module init order is determined
by Makefile order. That order violates expectations. The expectation is
that cxl_acpi and cxl_mem can race to attach. If cxl_acpi wins the race,
cxl_mem will find the enabled CXL root ports it needs. If cxl_acpi loses
the race it will retrigger cxl_mem to attach via cxl_bus_rescan(). That
flow only works if cxl_acpi can assume ports are enabled immediately
upon cxl_acpi_probe() return. That in turn can only happen in the
CONFIG_CXL_ACPI=y case if the cxl_port driver is registered before
cxl_acpi_probe() runs.
Fix up the order to prevent initialization failures. Ensure that
cxl_port is built-in when cxl_acpi is also built-in, arrange for
Makefile order to resolve the subsys_initcall() order of cxl_port and
cxl_acpi, and arrange for Makefile order to resolve the
device_initcall() (module_init()) order of the remaining objects.
As for what contributed to this not being found earlier, the CXL
regression environment, cxl_test, builds all CXL functionality as a
module to allow to symbol mocking and other dynamic reload tests. As a
result there is no regression coverage for the built-in case.
Reported-by: Gregory Price <gourry@gourry.net>
Closes: http://lore.kernel.org/20241004212504.1246-1-gourry@gourry.net
Tested-by: Gregory Price <gourry@gourry.net>
Fixes: 8dd2bc0f8e02 ("cxl/mem: Add the cxl_mem driver")
Cc: stable@vger.kernel.org
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Alejandro Lucero <alucerop@amd.com>
Reviewed-by: Alejandro Lucero <alucerop@amd.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/172988474904.476062.7961350937442459266.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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If ufshcd_rtc_work calls ufshcd_rpm_put_sync() and the pm's usage_count
is 0, we will enter the runtime suspend callback. However, the runtime
suspend callback will wait to flush ufshcd_rtc_work, causing a deadlock.
Replace ufshcd_rpm_put_sync() with ufshcd_rpm_put() to avoid the
deadlock.
Fixes: 6bf999e0eb41 ("scsi: ufs: core: Add UFS RTC support")
Cc: stable@vger.kernel.org #6.11.x
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20241024015453.21684-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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If the sg_copy_buffer() call returns less than sdebug_sector_size, then
we drop out of the copy loop. However, we still report that we copied
the full expected amount, which is not proper.
Fix by keeping a running total and return that value.
Fixes: 84f3a3c01d70 ("scsi: scsi_debug: Atomic write support")
Reported-by: Colin Ian King <colin.i.king@gmail.com>
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20241018101655.4207-1-john.g.garry@oracle.com
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix an ACPI PRM (Platform Runtime Mechanism) issue and add two
new DMI quirks, one for an ACPI IRQ override and one for lid switch
detection:
- Make acpi_parse_prmt() look for EFI_MEMORY_RUNTIME memory regions
only to comply with the UEFI specification and make PRM use
efi_guid_t instead of guid_t to avoid a compiler warning triggered
by that change (Koba Ko, Dan Carpenter)
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel)
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar)"
* tag 'acpi-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PRM: Clean up guid type in struct prm_handler_info
ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue
ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]
ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Update cpufreq documentation to match the code after recent changes
(Christian Loehle), fix a units conversion issue in the CPPC cpufreq
driver (liwei), and fix an error check in the dtpm_devfreq power
capping driver (Yuan Can)"
* tag 'pm-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: CPPC: fix perf_to_khz/khz_to_perf conversion exception
powercap: dtpm_devfreq: Fix error check against dev_pm_qos_add_request()
cpufreq: docs: Reflect latency changes in docs
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Hold the rescan lock while adding devices to avoid race with
concurrent pwrctl rescan that can lead to a crash (Bartosz
Golaszewski)
- Avoid binding pwrctl driver to QCom WCN wifi if the DT lacks the
necessary PMU regulator descriptions (Bartosz Golaszewski)
* tag 'pci-v6.12-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI/pwrctl: Abandon QCom WCN probe on pre-pwrseq device-trees
PCI: Hold rescan lock while adding devices during host probe
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
- Fix some build warnings and failures with CONFIG_FB_IOMEM_FOPS and
CONFIG_FB_DEVICE
- Remove the da8xx fbdev driver
- Constify struct sbus_mmap_map and fix indentation warning
* tag 'fbdev-for-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS
fbdev: da8xx: remove the driver
fbdev: Constify struct sbus_mmap_map
fbdev: nvidiafb: fix inconsistent indentation warning
fbdev: sstfb: Make CONFIG_FB_DEVICE optional
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
- Fix the handling of ATA commands that timeout (command that did not
receive a completion interrupt within the configured timeout time).
Commands that timeout, while also having either the FAILFAST flag
set, or the command being a passthrough command, should never be
retried. Restore this behavior (as it was before v6.12-rc1).
* tag 'ata-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Set DID_TIME_OUT for commands that actually timed out
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The majority of changes here are about ASoC.
There are two core changes in ASoC (the bump of minimal topology ABI
version and the fix for references of components in DAPM code), and
others are mostly various device-specific fixes for SoundWire, AMD,
Intel, SOF, Qualcomm and FSL, in addition to a few usual HD-audio
quirks and fixes"
* tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
ALSA: hda/realtek: Update default depop procedure
ASoC: qcom: sc7280: Fix missing Soundwire runtime stream alloc
ASoC: fsl_micfil: Add sample rate constraint
ASoC: rt722-sdca: increase clk_stop_timeout to fix clock stop issue
ALSA: hda/tas2781: select CRC32 instead of CRC32_SARWATE
ALSA: hda/realtek: Add subwoofer quirk for Acer Predator G9-593
ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
ASoC: fsl_micfil: Add a flag to distinguish with different volume control types
ASoC: codecs: lpass-rx-macro: fix RXn(rx,n) macro for DSM_CTL and SEC7 regs
ASoC: Change my e-mail to gmail
ASoC: Intel: soc-acpi: lnl: Add match entry for TM2 laptops
ASoC: amd: yc: Fix non-functional mic on ASUS E1404FA
ASoC: SOF: Intel: hda: Always clean up link DMA during stop
soundwire: intel_ace2x: Send PDI stream number during prepare
ASoC: SOF: Intel: hda: Handle prepare without close for non-HDA DAI's
ASoC: SOF: ipc4-topology: Do not set ALH node_id for aggregated DAIs
MAINTAINERS: Update maintainer list for MICROCHIP ASOC, SSC and MCP16502 drivers
ASoC: qcom: Select missing common Soundwire module code on SDM845
ASoC: fsl_esai: change dev_warn to dev_dbg in irq handler
ASoC: rsnd: Fix probe failure on HiHope boards due to endpoint parsing
...
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Pull drm fixes from Dave Airlie:
"Weekly drm fixes, mostly amdgpu and xe, with minor bridge and an i915
Kconfig fix. Nothing too scary and it seems to be pretty quiet.
amdgpu:
- ACPI method handling fixes
- SMU 14.x fixes
- Display idle optimization fix
- DP link layer compliance fix
- SDMA 7.x fix
- PSR-SU fix
- SWSMU fix
i915:
- Fix DRM_I915_GVT_KVMGT dependencies in Kconfig
xe:
- Increase invalidation timeout to avoid errors in some hosts
- Flush worker on timeout
- Better handling for force wake failure
- Improve argument check on user fence creation
- Don't restart parallel queues multiple times on GT reset
bridge:
- aux: Fix assignment of OF node
- tc358767: Add missing of_node_put() in error path"
* tag 'drm-fixes-2024-10-25' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe: Don't restart parallel queues multiple times on GT reset
drm/xe/ufence: Prefetch ufence addr to catch bogus address
drm/xe: Handle unreliable MMIO reads during forcewake
drm/xe/guc/ct: Flush g2h worker in case of g2h response timeout
drm/xe: Enlarge the invalidation timeout from 150 to 500
drm/amdgpu: handle default profile on on devices without fullscreen 3D
drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too
drm/amdgpu: fix random data corruption for sdma 7
drm/amd/display: temp w/a for DP Link Layer compliance
drm/amd/display: temp w/a for dGPU to enter idle optimizations
drm/amd/pm: update deep sleep status on smu v14.0.2/3
drm/amd/pm: update overdrive function on smu v14.0.2/3
drm/amd/pm: update the driver-fw interface file for smu v14.0.2/3
drm/amd: Guard against bad data for ATIF ACPI method
drm/bridge: tc358767: fix missing of_node_put() in for_each_endpoint_of_node()
drm/bridge: Fix assignment of the of_node of the parent to aux bridge
i915: fix DRM_I915_GVT_KVMGT dependencies
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CXL spec rev 3.0 section 8.2.9.2.1.2 defines the DRAM Event Record.
Fix decode memory event type field of DRAM Event Record.
For e.g. if value is 0x1 it will be reported as an Invalid Address
(General Media Event Record - Memory Event Type) instead of Scrub Media
ECC Error (DRAM Event Record - Memory Event Type) and so on.
Fixes: 2d6c1e6d60ba ("cxl/mem: Trace DRAM Event Record")
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Link: https://patch.msgid.link/20241014143003.1170-1-shiju.jose@huawei.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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If more than 255 colocated APs exist for the set of all
APs found during 2.4/5 GHz scanning, then the 6 GHz scan
construction will loop forever since the loop variable
has type u8, which can never reach the number found when
that's bigger than 255, and is stored in a u32 variable.
Also move it into the loops to have a smaller scope.
Using a u32 there is fine, we limit the number of APs in
the scan list and each has a limit on the number of RNR
entries due to the frame size. With a limit of 1000 scan
results, a frame size upper bound of 4096 (really it's
more like ~2300) and a TBTT entry size of at least 11,
we get an upper bound for the number of ~372k, well in
the bounds of a u32.
Cc: stable@vger.kernel.org
Fixes: eae94cf82d74 ("iwlwifi: mvm: add support for 6GHz")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219375
Link: https://patch.msgid.link/20241023091744.f4baed5c08a1.I8b417148bbc8c5d11c101e1b8f5bf372e17bf2a7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Revert commit dfdfe4be183b ("wifi: iwlwifi: remove retry loops in
start"), it turns out that there's an issue with the PNVM load
notification from firmware not getting processed, that this patch
has been somewhat successfully papering over. Since this is being
reported, revert the loop removal for now.
We will later at least clean this up to only attempt to retry if
there was a timeout, but currently we don't even bubble up the
failure reason to the correct layer, only returning NULL.
Fixes: dfdfe4be183b ("wifi: iwlwifi: remove retry loops in start")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20241022092212.4aa82a558a00.Ibdeff9c8f0d608bc97fc42024392ae763b6937b7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When we add the vif (and its default link) in fw restart we may
override the link that already exists. We take care of this but if
link 0 is a valid MLO link, then we will re-create a default link on
mvmvif->link[0] and we'll loose the real link we had there.
In non-MLO, we need to re-create the default link upon the interface
creation, this is fine. In MLO, we'll just wait for change_vif_links()
to re-build the links.
Fixes: bf976c814c86 ("wifi: iwlwifi: mvm: implement link change ops")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.385bfea1b2e9.I4a127312285ccb529cc95cc4edf6fbe1e0a136ad@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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1. The size of the response packet is not validated.
2. The response buffer is not freed.
Resolve these issues by switching to iwl_mvm_send_cmd_status(),
which handles both size validation and frees the buffer.
Fixes: f130bb75d881 ("iwlwifi: add FW recovery flow")
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.76c73185951e.Id3b6ca82ced2081f5ee4f33c997491d0ebda83f7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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SAR table format in ACPI and local data base are different,
So modified code to read data properly.
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.f077aced4dee.I4dc618f12d01f7ad19f9f8881f6e09eea77e9a14@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When starting the suspend flow, HOST_D3_START triggers an _async_
firmware dump collection for debugging purposes. The async worker
may race with suspend flow and fail to get NIC access, resulting in
the following warning:
"Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff)"
Fix this by switching to the sync version to ensure the dump
completes before proceeding with the suspend flow, avoiding
potential race issues.
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.9aae318cd593.I4b322009f39489c0b1d8893495c887870f73ed9c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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iwl_mvm_send_ap_tx_power_constraint_cmd is a no-op if the link is not
active (we need to know the band etc.)
However, for the station case it will be called just before we set the
link to active (by calling iwl_mvm_link_changed with
the LINK_CONTEXT_MODIFY_ACTIVE bit set in the 'changed' flags and
active = true), so it will end up doing nothing.
Fix this by calling iwl_mvm_send_ap_tx_power_constraint_cmd before
iwl_mvm_link_changed.
Fixes: 6b82f4e119d1 ("wifi: iwlwifi: mvm: handle TPE advertised by AP")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.5c235fccd3f1.I2d40dea21e5547eba458565edcb4c354d094d82a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Release the link mapping resource in AP removal. This impacted devices
that do not support the MLD API (9260 and down).
On those devices, we couldn't start the AP again after the AP has been
already started and stopped.
Fixes: a8b5d4809b50 ("wifi: iwlwifi: mvm: Configure the link mapping for non-MLD FW")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.c54c42779882.Ied79e0d6244dc5a372e8b6ffa8ee9c6e1379ec1d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Merge a dtpm_devfreq power capping driver fix for 6.12-rc5:
- Fix a dev_pm_qos_add_request() return value check in
__dtpm_devfreq_setup() to prevent it from failing if
a positive number is returned (Yuan Can).
* pm-powercap:
powercap: dtpm_devfreq: Fix error check against dev_pm_qos_add_request()
|
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Merge new DMI quirks for 6.12-rc5:
- Add an ACPI IRQ override quirk for LG 16T90SP (Christian Heusel).
- Add a lid switch detection quirk for Samsung Galaxy Book2 (Shubham
Panwar).
* acpi-resource:
ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]
* acpi-button:
ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue
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Backmerging to get the latest fixes from upstream.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
wireless fixes for v6.12-rc5
The first set of wireless fixes for v6.12. We have been busy and have
not been able to send this earlier, so there are more fixes than
usual. The fixes are all over, both in stack and in drivers, but
nothing special really standing out.
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Increase invalidation timeout to avoid errors in some hosts (Shuicheng)
- Flush worker on timeout (Badal)
- Better handling for force wake failure (Shuicheng)
- Improve argument check on user fence creation (Nirmoy)
- Don't restart parallel queues multiple times on GT reset (Nirmoy)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/trlkoiewtc4x2cyhsxmj3atayyq4zwto4iryea5pvya2ymc3yp@fdx5nhwmiyem
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The driver neglects to free the instance of I2C regmap constructed at
the beginning of the edt_ft5x06_ts_probe() method when probe fails.
Additionally edt_ft5x06_ts_remove() is freeing the regmap too early,
before the rest of the device resources that are managed by devm are
released.
Fix this by installing a custom devm action that will ensure that the
regmap is released at the right time during normal teardown as well as
in case of probe failure.
Note that devm_regmap_init_i2c() could not be used because the driver
may replace the original regmap with a regmap specific for M06 devices
in the middle of the probe, and using devm_regmap_init_i2c() would
result in releasing the M06 regmap too early.
Reported-by: Li Zetao <lizetao1@huawei.com>
Fixes: 9dfd9708ffba ("Input: edt-ft5x06 - convert to use regmap API")
Cc: stable@vger.kernel.org
Reviewed-by: Oliver Graute <oliver.graute@kococonnector.com>
Link: https://lore.kernel.org/r/ZxL6rIlVlgsAu-Jv@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull:
bridge:
- aux: Fix assignment of OF node
- tc358767: Add missing of_node_put() in error path
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241024124921.GA20475@localhost.localdomain
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfiler, xfrm and bluetooth.
Oddly this includes a fix for a posix clock regression; in our
previous PR we included a change there as a pre-requisite for
networking one. That fix proved to be buggy and requires the follow-up
included here. Thomas suggested we should send it, given we sent the
buggy patch.
Current release - regressions:
- posix-clock: Fix unbalanced locking in pc_clock_settime()
- netfilter: fix typo causing some targets not to load on IPv6
Current release - new code bugs:
- xfrm: policy: remove last remnants of pernet inexact list
Previous releases - regressions:
- core: fix races in netdev_tx_sent_queue()/dev_watchdog()
- bluetooth: fix UAF on sco_sock_timeout
- eth: hv_netvsc: fix VF namespace also in synthetic NIC
NETDEV_REGISTER event
- eth: usbnet: fix name regression
- eth: be2net: fix potential memory leak in be_xmit()
- eth: plip: fix transmit path breakage
Previous releases - always broken:
- sched: deny mismatched skip_sw/skip_hw flags for actions created by
classifiers
- netfilter: bpf: must hold reference on net namespace
- eth: virtio_net: fix integer overflow in stats
- eth: bnxt_en: replace ptp_lock with irqsave variant
- eth: octeon_ep: add SKB allocation failures handling in
__octep_oq_process_rx()
Misc:
- MAINTAINERS: add Simon as an official reviewer"
* tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
net: dsa: mv88e6xxx: support 4000ps cycle counter period
net: dsa: mv88e6xxx: read cycle counter period from hardware
net: dsa: mv88e6xxx: group cycle counter coefficients
net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
hv_netvsc: Fix VF namespace also in synthetic NIC NETDEV_REGISTER event
net: dsa: microchip: disable EEE for KSZ879x/KSZ877x/KSZ876x
Bluetooth: ISO: Fix UAF on iso_sock_timeout
Bluetooth: SCO: Fix UAF on sco_sock_timeout
Bluetooth: hci_core: Disable works on hci_unregister_dev
posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
r8169: avoid unsolicited interrupts
net: sched: use RCU read-side critical section in taprio_dump()
net: sched: fix use-after-free in taprio_change()
net/sched: act_api: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
net: usb: usbnet: fix name regression
mlxsw: spectrum_router: fix xa_store() error checking
virtio_net: fix integer overflow in stats
net: fix races in netdev_tx_sent_queue()/dev_watchdog()
net: wwan: fix global oob in wwan_rtnl_policy
netfilter: xtables: fix typo causing some targets not to load on IPv6
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
"Device-specific functionality quirks for Thinkpad X1 Gen3, Logitech
Bolt and some Goodix touchpads (Bartłomiej Maryńczak, Hans de Goede
and Kenneth Albanowski)"
* tag 'hid-for-linus-20241024' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: lenovo: Add support for Thinkpad X1 Tablet Gen 3 keyboard
HID: multitouch: Add quirk for Logitech Bolt receiver w/ Casa touchpad
HID: i2c-hid: Delayed i2c resume wakeup for 0x0d42 Goodix touchpad
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Fix DRM_I915_GVT_KVMGT dependencies in Kconfig
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZxniUlDg59RxOO-6@jlahtine-mobl.ger.corp.intel.com
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non-PCI device
The function cxl_endpoint_gather_bandwidth() invokes
pci_bus_read/write_XXX(), however, not all CXL devices are presently
implemented via PCI. It is recognized that the cxl_test has realized a CXL
device using a platform device.
Calling pci_bus_read/write_XXX() in cxl_test will cause kernel panic:
platform cxl_host_bridge.3: host supports CXL (restricted)
Oops: general protection fault, probably for non-canonical address 0x3ef17856fcae4fbd: 0000 [#1] PREEMPT SMP PTI
Call Trace:
<TASK>
? __die_body.cold+0x19/0x27
? die_addr+0x38/0x60
? exc_general_protection+0x1f5/0x4b0
? asm_exc_general_protection+0x22/0x30
? pci_bus_read_config_word+0x1c/0x60
pcie_capability_read_word+0x93/0xb0
pcie_link_speed_mbps+0x18/0x50
cxl_pci_get_bandwidth+0x18/0x60 [cxl_core]
cxl_endpoint_gather_bandwidth.constprop.0+0xf4/0x230 [cxl_core]
? xas_store+0x54/0x660
? preempt_count_add+0x69/0xa0
? _raw_spin_lock+0x13/0x40
? __kmalloc_cache_noprof+0xe7/0x270
cxl_region_shared_upstream_bandwidth_update+0x9c/0x790 [cxl_core]
cxl_region_attach+0x520/0x7e0 [cxl_core]
store_targetN+0xf2/0x120 [cxl_core]
kernfs_fop_write_iter+0x13a/0x1f0
vfs_write+0x23b/0x410
ksys_write+0x53/0xd0
do_syscall_64+0x62/0x180
entry_SYSCALL_64_after_hwframe+0x76/0x7e
And Ying also reported a KASAN error with similar calltrace.
Reported-by: Huang, Ying <ying.huang@intel.com>
Closes: http://lore.kernel.org/87y12w9vp5.fsf@yhuang6-desk2.ccr.corp.intel.com
Fixes: a5ab0de0ebaa ("cxl: Calculate region bandwidth of targets with shared upstream link")
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Huang, Ying <ying.huang@intel.com>
Link: https://patch.msgid.link/20241022030054.258942-1-lizhijian@fujitsu.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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|
If REGMAP_SPI is n and LTC2664 is y, the following build error occurs:
riscv64-unknown-linux-gnu-ld: drivers/iio/dac/ltc2664.o: in function `ltc2664_probe':
ltc2664.c:(.text+0x714): undefined reference to `__devm_regmap_init_spi'
Select REGMAP_SPI instead of REGMAP for LTC2664 to fix it.
Fixes: 4cc2fc445d2e ("iio: dac: ltc2664: Add driver for LTC2664 and LTC2672")
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20241024015553.1111253-1-ruanjinjie@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
|
|
In case of parallel submissions multiple GuC id will point to the
same exec queue and on GT reset such exec queues will get restarted
multiple times which is not desirable.
v2: don't use exec_queue_enabled() which could race,
do the same for xe_guc_submit_stop (Matt B)
Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2295
Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Tejas Upadhyay <tejas.upadhyay@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241022103555.731557-1-nirmoy.das@intel.com
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
(cherry picked from commit c8b0acd6d8745fd7e6450f5acc38f0227bd253b3)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
|
|
access_ok() only checks for addr overflow so also try to read the addr
to catch invalid addr sent from userspace.
Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1630
Cc: Francois Dugast <francois.dugast@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241016082304.66009-2-nirmoy.das@intel.com
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
(cherry picked from commit 9408c4508483ffc60811e910a93d6425b8e63928)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
|
|
In some cases, when the driver attempts to read an MMIO register,
the hardware may return 0xFFFFFFFF. The current force wake path
code treats this as a valid response, as it only checks the BIT.
However, 0xFFFFFFFF should be considered an invalid value, indicating
a potential issue. To address this, we should add a log entry to
highlight this condition and return failure.
The force wake failure log level is changed from notice to err
to match the failure return value.
v2 (Matt Brost):
- set ret value (-EIO) to kick the error to upper layers
v3 (Rodrigo):
- add commit message for the log level promotion from notice to err
v4:
- update reviewed info
Suggested-by: Alex Zuo <alex.zuo@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Acked-by: Badal Nilawar <badal.nilawar@intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241017221547.1564029-1-shuicheng.lin@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit a9fbeabe7226a3bf90f82d0e28a02c18e3c67447)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
|
|
In case if g2h worker doesn't get opportunity to within specified
timeout delay then flush the g2h worker explicitly.
v2:
- Describe change in the comment and add TODO (Matt B/John H)
- Add xe_gt_warn on fence done after G2H flush (John H)
v3:
- Updated the comment with root cause
- Clean up xe_gt_warn message (John H)
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/issues/1620
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/issues/2902
Signed-off-by: Badal Nilawar <badal.nilawar@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241017111410.2553784-2-badal.nilawar@intel.com
(cherry picked from commit e5152723380404acb8175e0777b1cea57f319a01)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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There are error messages like below that are occurring during stress
testing: "[ 31.004009] xe 0000:03:00.0: [drm] ERROR GT0: Global
invalidation timeout". Previously it was hitting this 3 out of 1000
executions of warm reboot. After raising it to 500, 1000 warm reboot
executions passed and it didn't fail.
Due to the way xe_mmio_wait32() is implemented, the timeout is able to
expire early when the register matches the expected value due to the
wait increments starting small. So, the larger timeout value should have
no effect during normal use cases.
v2 (Jonathan):
- rework the commit message
v3 (Lucas):
- add conclusive message for the fail rate and test case
v4:
- add suggested-by
Suggested-by: Jia Yao <jia.yao@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Tested-by: Zongyao Bai <zongyao.bai@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241015161207.1373401-1-shuicheng.lin@intel.com
(cherry picked from commit 2eb460ab9f4bc5b575f52568d17936da0af681d8)
[ Fix conflict with gt->mmio ]
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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In the ad7124_write_raw() function, parameter val can potentially
be zero. This may lead to a division by zero when DIV_ROUND_CLOSEST()
is called within ad7124_set_channel_odr(). The ad7124_write_raw()
function is invoked through the sequence: iio_write_channel_raw() ->
iio_write_channel_attribute() -> iio_channel_write(), with no checks
in place to ensure val is non-zero.
Cc: stable@vger.kernel.org
Fixes: 7b8d045e497a ("iio: adc: ad7124: allow more than 8 channels")
Signed-off-by: Zicheng Qu <quzicheng@huawei.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20241022134330.574601-1-quzicheng@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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In the ad9832_write_frequency() function, clk_get_rate() might return 0.
This can lead to a division by zero when calling ad9832_calc_freqreg().
The check if (fout > (clk_get_rate(st->mclk) / 2)) does not protect
against the case when fout is 0. The ad9832_write_frequency() function
is called from ad9832_write(), and fout is derived from a text buffer,
which can contain any value.
Link: https://lore.kernel.org/all/2024100904-CVE-2024-47663-9bdc@gregkh/
Fixes: ea707584bac1 ("Staging: IIO: DDS: AD9832 / AD9835 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Zicheng Qu <quzicheng@huawei.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20241022134354.574614-1-quzicheng@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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ad7380-4 is the only device in the family that does not have an internal
reference. It uses "refin" as a required external reference.
All other devices in the family use "refio"" as an optional external
reference.
Fixes: 737413da8704 ("iio: adc: ad7380: add support for ad738x-4 4 channels variants")
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241022-ad7380-fix-supplies-v3-4-f0cefe1b7fa6@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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vcc and vlogic are required but are not retrieved and enabled in the
probe. Add them.
In order to prepare support for additional parts requiring different
supplies, add vcc and vlogic to the platform specific structures
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241022-ad7380-fix-supplies-v3-3-f0cefe1b7fa6@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
|
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Use devm_regulator_get_enable_read_voltage() to simplify the code.
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241022-ad7380-fix-supplies-v3-2-f0cefe1b7fa6@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
|
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The raw value conversion to obtain a measurement in lux as
INT_PLUS_MICRO does not calculate the decimal part properly to display
it as micro (in this case microlux). It only calculates the module to
obtain the decimal part from a resolution that is 10000 times the
provided in the datasheet (0.5376 lux/cnt for the veml6030). The
resulting value must still be multiplied by 100 to make it micro.
This bug was introduced with the original implementation of the driver.
Only the illuminance channel is fixed becuase the scale is non sensical
for the intensity channels anyway.
Cc: stable@vger.kernel.org
Fixes: 7b779f573c48 ("iio: light: add driver for veml6030 ambient light sensor")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20241016-veml6030-fix-processed-micro-v1-1-4a5644796437@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The iommu_paging_domain_alloc() function doesn't return NULL pointers,
it returns error pointers. Update the check to match.
Fixes: 45c690aea8ee ("drm/tegra: Use iommu_paging_domain_alloc()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ba31cf3a-af3d-4ff1-87a8-f05aaf8c780b@stanley.mountain
|
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When the nominal_freq recorded by the kernel is equal to the lowest_freq,
and the frequency adjustment operation is triggered externally, there is
a logic error in cppc_perf_to_khz()/cppc_khz_to_perf(), resulting in perf
and khz conversion errors.
Fix this by adding a branch processing logic when nominal_freq is equal
to lowest_freq.
Fixes: ec1c7ad47664 ("cpufreq: CPPC: Fix performance/frequency conversion")
Signed-off-by: liwei <liwei728@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20241024022952.2627694-1-liwei728@huawei.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
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Clang 19 prints a warning when we pass &th->guid to efi_pa_va_lookup():
drivers/acpi/prmt.c:156:29: error: passing 1-byte aligned argument to
4-byte aligned parameter 1 of 'efi_pa_va_lookup' may result in an
unaligned pointer access [-Werror,-Walign-mismatch]
156 | (void *)efi_pa_va_lookup(&th->guid, handler_info->handler_address);
| ^
The problem is that efi_pa_va_lookup() takes a efi_guid_t and &th->guid
is a regular guid_t. The difference between the two types is the
alignment. efi_guid_t is a typedef.
typedef guid_t efi_guid_t __aligned(__alignof__(u32));
It's possible that this a bug in Clang 19. Even though the alignment of
&th->guid is not explicitly specified, it will still end up being aligned
at 4 or 8 bytes.
Anyway, as Ard points out, it's cleaner to change guid to efi_guid_t type
and that also makes the warning go away.
Fixes: 088984c8d54c ("ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context")
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://patch.msgid.link/3777d71b-9e19-45f4-be4e-17bf4fa7a834@stanley.mountain
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
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The MV88E6393X family of devices can run its cycle counter off
an internal 250MHz clock instead of an external 125MHz one.
Add support for this cycle counter period by adding another set
of coefficients and lowering the periodic cycle counter read interval
to compensate for faster overflows at the increased frequency.
Otherwise, the PHC runs at 2x real time in userspace and cannot be
synchronized.
Fixes: de776d0d316f ("net: dsa: mv88e6xxx: add support for mv88e6393x family")
Signed-off-by: Shenghao Yang <me@shenghaoyang.info>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Instead of relying on a fixed mapping of hardware family to cycle
counter frequency, pull this information from the
MV88E6XXX_TAI_CLOCK_PERIOD register.
This lets us support switches whose cycle counter frequencies depend on
board design.
Fixes: de776d0d316f ("net: dsa: mv88e6xxx: add support for mv88e6393x family")
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shenghao Yang <me@shenghaoyang.info>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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