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2026-07-28ASoC: ti: omap-abe-twl6040: Use dev_err_probe() for error handlingbui duc phuc
Replace dev_err() with dev_err_probe() when reporting devm_snd_soc_register_card() failures. This suppresses unnecessary log messages for deferred probe errors. Signed-off-by: bui duc phuc <phucduc.bui@gmail.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Link: https://patch.msgid.link/20260716103911.77652-6-phucduc.bui@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28ASoC: ti: omap-abe-twl6040: Preserve error code and drop redundant logbui duc phuc
Return the original errors from the OF parsing helpers and remove the redundant error messages, as the helpers already report failures. Signed-off-by: bui duc phuc <phucduc.bui@gmail.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Link: https://patch.msgid.link/20260716103911.77652-5-phucduc.bui@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28ASoC: ti: j721e-evm: Return the original error from card name parsingbui duc phuc
Return the error from snd_soc_of_parse_card_name() directly instead of converting it to -ENODEV. The helper already logs the error, so drop the redundant dev_err(). Signed-off-by: bui duc phuc <phucduc.bui@gmail.com> Link: https://patch.msgid.link/20260716103911.77652-4-phucduc.bui@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28ASoC: ti: davinci-evm: Use dev_err_probe() for error handlingbui duc phuc
Replace dev_err() with dev_err_probe() when reporting devm_snd_soc_register_card() failures. This suppresses unnecessary log messages for deferred probe errors. Signed-off-by: bui duc phuc <phucduc.bui@gmail.com> Link: https://patch.msgid.link/20260716103911.77652-3-phucduc.bui@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28ASoC: ti: ams-delta: Use dev_err_probe() for error handlingbui duc phuc
Use dev_err_probe() to replace dev_err() followed by returning the error code. This keeps the error handling concise and suppresses log messages for deferred probe errors. Signed-off-by: bui duc phuc <phucduc.bui@gmail.com> Link: https://patch.msgid.link/20260716103911.77652-2-phucduc.bui@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28ASoC: soc-generic-dmaengine: Handle DMA channel request failures correctlybui duc phuc
Currently any dma_request_chan() failure other than -EPROBE_DEFER is silently ignored, since a missing channel is expected for devices that only support one DMA direction. Improve the handling of these failures by: - reporting failures when a configured DMA channel cannot be requested; - failing probe if neither playback nor capture obtains a DMA channel, since the PCM device would be unusable. Devices that legitimately support only one DMA direction continue to work as before. Signed-off-by: bui duc phuc <phucduc.bui@gmail.com> Link: https://patch.msgid.link/20260720064131.75156-1-phucduc.bui@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28regulator: fan53555: Add support for mode operations on Silergy devicesVictor Krawiec
Make the PWM mode configurable from devicetree. Some boards require forced PWM mode to keep the supply ripple within acceptable limits under light load conditions Support is restricted to Silergy manufacturer as it is the only one currently tested. Signed-off-by: Victor Krawiec <victor.krawiec@arturia.com> Link: https://patch.msgid.link/20260723094001.120264-5-victor.krawiec@arturia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28regulator: dt-bindings: Add fan53555 allowed modesVictor Krawiec
Fairchild FAN53555 and its clone from Rockchip, Silergy and TCS support two modes of operation: - Auto-PFM: Allow automatic PFM during light load (default mode) - Forced PWM Some boards require forced PWM mode to keep the supply ripple within acceptable limits under light load conditions. Regulator mode indexes are starting from 1 to keep backward compatibility with existing device trees Signed-off-by: Victor Krawiec <victor.krawiec@arturia.com> Link: https://patch.msgid.link/20260723094001.120264-2-victor.krawiec@arturia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28e1000: fix memory leak in e1000_probe()Dawei Feng
In the e1000_probe() path, e1000_sw_init() allocates adapter->tx_ring and adapter->rx_ring. If the subsequent CE4100-specific MDIO BAR mapping fails, the error handling jumps past the ring cleanup code, leaking both allocations. Fix this leak by moving the err_mdio_ioremap label above the ring deallocation logic. This guarantees the proper release of these resources and prevents the memory leak. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc6. An x86_64 allyesconfig build showed no new warnings. As we do not have a CE4100 reference platform to test with, no runtime testing was able to be performed. Fixes: 5377a4160bb65 ("e1000: Add support for the CE4100 reference platform") Cc: stable@vger.kernel.org Signed-off-by: Zilin Guan <zilin@seu.edu.cn> Signed-off-by: Dawei Feng <dawei.feng@seu.edu.cn> Reviewed-by: Dima Ruinskiy <dima.ruinskiy@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28igbvf: Fix leak in TX DMA error cleanupMatt Vollrath
If an error is encountered while mapping TX buffers, the driver should unmap any buffers already mapped for that skb. Because count is incremented before each frag mapping, it will always match the correct number of unmappings needed when dma_error is reached. Decrementing count before the while loop in dma_error causes an off-by-one error. If any mapping was successful before an unsuccessful mapping, exactly one DMA mapping (the head) would leak. This bug was introduced by a 2010 fix for an endless loop in dma_error. All other affected drivers have already been fixed. Fixes: c1fa347f20f1 ("e1000/e1000e/igb/igbvf/ixgb/ixgbe: Fix tests of unsigned in *_tx_map()") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-4-7-opus Signed-off-by: Matt Vollrath <tactii@gmail.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28igc: remove napi_synchronize() in igc_down()David Carlier
When an AF_XDP zero-copy application is killed abruptly, the XSK pool is torn down but NAPI keeps polling. igc_clean_rx_irq_zc() then returns the full budget on every poll, so napi_complete_done() never clears NAPI_STATE_SCHED. igc_down() calls napi_synchronize() before napi_disable(), so it spins forever waiting for that bit and the interface never goes down. Drop the napi_synchronize() and let napi_disable() do the job -- it sets NAPI_STATE_DISABLE, which forces the stuck poll to complete. Reorder it ahead of igc_set_queue_napi() so the NAPI mapping is cleared only after polling has stopped, matching the recent igb fix b1e067240379. Fixes: fc9df2a0b520 ("igc: Enable RX via AF_XDP zero-copy") Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Cc: stable@vger.kernel.org Signed-off-by: David Carlier <devnexen@gmail.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Reviewed-by: Dima Ruinskiy <dima.ruinskiy@intel.com> Tested-by: Moriya Kadosh <moriyax.kadosh@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28ice: suppress DPLL errors during reset recoveryPrzemyslaw Korba
During reset recovery, the admin queue returns EBUSY which is expected behavior. However, the DPLL subsystem was logging these as errors and incrementing the error counter, potentially leading to unnecessary warnings and even disabling the DPLL periodic worker if the threshold was reached. Suppress error logging and error counter increments when the admin queue returns EBUSY, as this is expected during reset recovery and not a real failure condition. test case: - ethtool --reset eth3 irq-shared dma-shared filter-shared offload-shared mac-shared phy-shared ram-shared - observe if dmesg EBUSY errors are gone Fixes: d7999f5ea64b ("ice: implement dpll interface to control cgu") Signed-off-by: Przemyslaw Korba <przemyslaw.korba@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28ice: fix memory leak in ice_lbtest_prepare_rings()Dawei Feng
ice_lbtest_prepare_rings() frees Rx rings only when ice_vsi_start_all_rx_rings() fails. If ice_vsi_setup_rx_rings() fails after allocating some descriptors, or if ice_vsi_cfg_lan() fails after the Rx rings were prepared, the function reaches the Tx cleanup path without releasing the initialized Rx resources. Fix this by adding separate unwind paths for Rx setup failure and LAN configuration failure. The Rx setup failure path releases the partially prepared Rx rings before freeing Tx rings, while later failures first undo the LAN Tx configuration and then release the Rx rings in reverse setup order. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have an Intel E800 Series adapter available to run the ethtool offline loopback selftest, no runtime testing was able to be performed. Fixes: 0e674aeb0b77 ("ice: Add handler for ethtool selftest") Cc: stable@vger.kernel.org Signed-off-by: Dawei Feng <dawei.feng@seu.edu.cn> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28ice: fix VF interrupts cleanupDawid Osuchowski
When a virtual function sends an IRQ map command, the PF will set up interrupts according to that request. However, because these interrupts are never reset, the next time Virtual Function initializes, the interrupts are still enabled for a given VF, which leads to performance degradation in certain cases due to interrupts being unexpectedly enabled and thus causing interrupt floods. Cc: stable@vger.kernel.org Fixes: 1071a8358a28 ("ice: Implement virtchnl commands for AVF support") Suggested-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Dawid Osuchowski <dawid.osuchowski@linux.intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Patryk Holda <patryk.holda@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28ice: wait for reset completion in ice_resume()Aaron Ma
ice_resume() schedules an asynchronous PF reset and returns immediately. The reset runs later in ice_service_task(). If userspace tries to bring up the net device before the reset finishes, ice_open() fails with -EBUSY: ice_resume() ice_schedule_reset() # sets ICE_PFR_REQ, returns ... ice_open() ice_is_reset_in_progress() # ICE_PFR_REQ still set, -EBUSY ... ice_service_task() ice_do_reset() ice_rebuild() # clears ICE_PFR_REQ, too late Reproduced on E800 series NICs during suspend/resume with irdma enabled, where the aux device probe widens the race window. ice 0000:81:00.0: can't open net device while reset is in progress Add a best-effort wait (10s timeout, matching ice_devlink_info_get()) for the reset to complete before returning from ice_resume(). In practice the reset completes in ~300ms. Fixes: 769c500dcc1e ("ice: Add advanced power mgmt for WoL") Cc: stable@vger.kernel.org Reviewed-by: Kohei Enju <kohei@enjuk.jp> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Aaron Ma <aaron.ma@canonical.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28idpf: Fix mailbox IRQ name leak on request failureYuho Choi
idpf_mb_intr_req_irq() allocates the mailbox IRQ name before calling request_irq(). On success, the name is released later through kfree(free_irq()), but request_irq() failure returns without freeing it. Free the allocated name on the request_irq() failure path. Fixes: 4930fbf419a7 ("idpf: add core init and interrupt request") Signed-off-by: Yuho Choi <dbgh9129@gmail.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Samuel Salin <Samuel.salin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28idpf: adjust TxQ ring count minimumJoshua Hay
Set the TxQ ring count minimum to 128 descriptors. Any lower than this, and the queue will stall and trigger Tx timeouts in flow based scheduling mode. This is because next_to_clean might never be updated. In flow based scheduling mode, next_to_clean is only updated after a descriptor completion is processed, i.e. after the RE bit is set in the last descriptor of a Tx packet. This will never happen with a ring size of 64 and an IDPF_TX_SPLITQ_RE_MIN_GAP of 64. No matter what the value of last_re is initialized/set to, the calculated gap will be at most 63 and never trigger the RE bit. Even a ring size of 96 does not solve this. Because of how infrequent next_to_clean is updated and how small the ring is, IDPF_DESC_UNUSED will be much smaller on average. This increases the chance the queue will be stopped because a multi-descriptor packet, e.g. a large LSO packet, does not see enough resources on the ring. In this case, the queue will trigger the stop logic. The queue permanently stalls because there is no chance for a descriptor completion to update next_to_clean since it is dependent on a packet being sent. Fixes: 5f417d551324 ("idpf: replace flow scheduling buffer ring with buffer pool") Signed-off-by: Joshua Hay <joshua.a.hay@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Samuel Salin <Samuel.salin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28idpf: bound interrupt-vector register fill to the allocated arrayMichael Bommarito
idpf_get_reg_intr_vecs() fills the caller-allocated reg_vals[] array from the VIRTCHNL2_OP_ALLOC_VECTORS reply in adapter->req_vec_chunks, bounding its inner loop only by the per-chunk num_vectors. The array is sized separately: idpf_intr_reg_init() allocates kzalloc_objs(struct idpf_vec_regs, total_vecs) from caps.num_allocated_vectors and only checks the returned count after the fill. The sum of per-chunk num_vectors is never reconciled against total_vecs, so a reply with a small num_allocated_vectors but chunks summing higher writes past the end of reg_vals[]. Impact: a control plane (a PF or hypervisor device model) that returns a VIRTCHNL2_OP_ALLOC_VECTORS reply whose per-chunk num_vectors sum exceeds num_allocated_vectors writes struct idpf_vec_regs entries past the end of the reg_vals kmalloc allocation (KASAN slab-out-of-bounds write). Bound the fill loop to the array capacity passed in by the callers, mirroring the sibling idpf_vport_get_q_reg(). The existing num_regs < num_vecs check then rejects an undersized reply without the out-of-bounds write happening first. Fixes: d4d558718266 ("idpf: initialize interrupts and enable vport") Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Samuel Salin <Samuel.salin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-07-28platform/x86/amd/hsmp: Enable protocol version 7 metric tables on the ACPI ↵Muralidhara M K
driver The ACPI driver currently prepares the per-socket metric table only on HSMP_PROTO_VER6. With protocol version 7 in use on Family 1Ah Model 50h-5Fh, userspace cannot reach the larger ~13 KB table: hsmp_get_tbl_dram_base() is skipped, sock->metric_tbl_addr stays NULL, and the ioctl added earlier in this series has nothing to read. Widen the proto_ver gate in init_acpi() from '== HSMP_PROTO_VER6' to '>= HSMP_PROTO_VER6' so the DRAM region is mapped and sock->metric_tbl_size is populated on protocol version 7 (and any future compatible version), making the ioctl path functional. hsmp_metric_tbl_acpi_read() now returns -EOPNOTSUPP whenever the running protocol version is not VER6, because the sysfs binary attribute cannot carry a table larger than PAGE_SIZE. Version 7 userspace gets a clear, actionable error and a documented pointer to HSMP_IOCTL_GET_TELEMETRY_DATA; version 6 userspace sees no change. The non-ACPI plat.c path is intentionally left untouched: it covers Family 1Ah Model 0h-Fh hardware fixed at protocol version 6, where the existing metrics_bin remains the supported interface. Co-developed-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com> Link: https://patch.msgid.link/20260727141542.3370108-6-muralidhara.mk@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-28platform/x86/amd/hsmp: Add IOCTL_GET_TELEMETRY_DATA for metric table readsMuralidhara M K
The metric table needs to be delivered to userspace as a single atomic snapshot, but the current sysfs metrics_bin path is a file read: userspace can read it in chunks and observe a torn snapshot if an SMU refresh happens between read() calls. The same path is also bounded by PAGE_SIZE, so the ~13 KB table used by HSMP protocol version 7 on Family 1Ah Model 50h-5Fh cannot be returned at all, regardless of how userspace reads it. Rather than extend sysfs to lift both restrictions, expose the metric table through the existing HSMP character device using a new ioctl that always copies the table in one shot. Add struct hsmp_telemetry_data and HSMP_IOCTL_GET_TELEMETRY_DATA to the UAPI header. Under the surrounding #pragma pack(4), placing the __u64 user pointer first gives a tight 16-byte layout that is identical for 32- and 64-bit callers, and the trailing __u16 reserved field is rejected with -EINVAL if non-zero so future kernels can repurpose it without breaking already-deployed userspace. The command is encoded with _IOW because the kernel only reads the request struct; the snapshot travels through the user pointer it carries. The requested size may be anything from one byte up to the size firmware reported for that socket's table. A short request returns the leading bytes of the snapshot, so userspace built against an older table layout keeps working on firmware that grew the table, mirroring the relaxed response_sz rule applied to HSMP messages earlier in this series. A request larger than the firmware table is rejected with -EINVAL rather than short-written, so a caller can never mistake a partial copy for a full one. Dispatch hsmp_ioctl() on the ioctl command: the existing message handler is factored out as hsmp_ioctl_msg() for HSMP_IOCTL_CMD, and HSMP_IOCTL_GET_TELEMETRY_DATA goes to a new hsmp_ioctl_get_telemetry() helper. /dev/hsmp is a singleton character device that outlives an individual socket unbind, so an ioctl issued on an already-open fd can run concurrently with socket teardown. hsmp_sock_rwsem is the driver's contract for that: the data plane takes it for read, and probe and remove take it for write to drain the data plane before freeing the socket array, unmapping the metric tables and destroying the per-socket mutexes. hsmp_ioctl_get_telemetry() takes it for read across the socket lookup, the checks on that socket's metric-table state and the table read itself, so none of that state can be torn down underneath it. Without this the handler would sleep in its kvmalloc() holding no lock at all, and could resume with a freed socket, locking a destroyed mutex and reading from an unmapped iomem region. The lock is dropped before the copy_to_user(), because faulting in the destination can block indefinitely on a userfaultfd-backed buffer and would otherwise leave a socket unbind waiting for the write lock. Since hsmp_metric_tbl_read() reached the mailbox through hsmp_send_message(), which takes hsmp_sock_rwsem itself, calling it with the lock already held would recursively take the read side and can deadlock against a queued writer. Split out hsmp_metric_tbl_read_locked(), which asserts the lock and uses hsmp_send_message_locked(), and leave hsmp_metric_tbl_read() as a wrapper that takes the read lock for the sysfs callers. This also brings the whole fill-and-copy under the rwsem for those callers, where the memcpy_fromio() previously ran outside it, and makes the lock order uniformly hsmp_sock_rwsem -> metric_read_lock -> hsmp_sem. The user-controlled socket index in HSMP_IOCTL_GET_TELEMETRY_DATA is clamped with array_index_nospec() before indexing hsmp_pdev.sock[], mitigating Spectre v1 (CVE-2017-5753). Include linux/nospec.h, which the file relied on getting transitively. Co-developed-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com> Link: https://patch.msgid.link/20260727141542.3370108-5-muralidhara.mk@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-28platform/x86/amd/hsmp: Source metric-table size from firmwareMuralidhara M K
The driver hard-codes the metric-table region size to sizeof(struct hsmp_metric_table). That is correct for HSMP protocol version 6 but mis-sizes the ioremap of the SMU DRAM region on newer platforms: Family 1Ah Model 50h-5Fh exposes a ~13 KB table under protocol version 7, and the table is expected to keep growing on future firmware. The same hard-coded value also forces hsmp_metric_tbl_read() to reject any read that follows the actual firmware layout. Pick up the table size from firmware instead. SMU on Family 1Ah Model 50h and later populates HSMP_GET_METRIC_TABLE_DRAM_ADDR's args[2] with the DRAM region size in bytes; older firmware leaves it 0. Bump the descriptor's response_sz to 3 so the field is read, and store the result in the new per-socket hsmp_socket.metric_tbl_size, which is then used both for the ioremap() of the region and as the expected size in hsmp_metric_tbl_read(). The size is stored per socket rather than per platform because hsmp_get_tbl_dram_base() runs once per socket and each socket maps its own region. A single platform-wide field would let the last socket's size be used to copy out of an earlier socket's smaller mapping. Bump DRIVER_VERSION to 2.6. Behaviour on existing protocol-version-6 hardware is unchanged. Reading a third response word is safe there: for this command SMU leaves args[2] as 0 rather than a stale value from an earlier mailbox transaction, so the fallback always applies, yielding the same value as the previous hard-coded one, and both the ioremap and the size check produce the same result as before. Co-developed-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com> Link: https://patch.msgid.link/20260727141542.3370108-4-muralidhara.mk@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-28platform/x86/amd/hsmp: Unify response_sz validation to an upper-bound checkMuralidhara M K
As HSMP protocol versions evolve, existing message IDs sometimes gain additional response words on newer firmware. validate_message() currently enforces a strict equality (response_sz == table value) for HSMP_SET and HSMP_GET, so userspace compiled against an earlier descriptor table is rejected with -EINVAL when it asks for fewer response words than the in-kernel table now declares - even though that caller has no interest in the additional words. Only HSMP_SET_GET already used a relaxed upper-bound check. Replace the per-type branching with a single upper-bound check for all message types. Userspace can now request fewer response words than hardware provides, while requests that exceed the descriptor table (and therefore the hardware capability) are still rejected. Co-developed-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com> Link: https://patch.msgid.link/20260727141542.3370108-3-muralidhara.mk@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-28platform/x86/amd/hsmp: Add HSMP messages for Family 1Ah, Model 50h-5FhMuralidhara M K
Family 1Ah Model 50h-5Fh firmware exposes new HSMP messages (0x29-0x2A, 0x33-0x3A) for PC6/CC6 control, CCD power/thermal monitoring, DIMM sideband access, floor- and SDPS-limit control, and command-enable discovery. The same firmware extends three existing SET-only messages (HSMP_SET_XGMI_LINK_WIDTH 0x0C, HSMP_SET_DF_PSTATE 0x0D, HSMP_SET_PSTATE_MAX_MIN 0x22) with a read-back path selected by bit[31] of args[0] (0 = set, 1 = get). Add the new IDs and convert the three messages to HSMP_SET_GET. Also add PQoS-related HSMP messages HSMP_PQOS_TRAFFIC_PRIORITY (0x3B) and HSMP_PQOS_FLOATING_BW (0x3C) with matching hsmp_msg_desc_table[] descriptors so userspace can reach the new functionality. Backward compatibility is preserved on prior platforms: new IDs previously occupied HSMP_RSVD slots, and existing userspace that leaves bit[31] = 0 continues to take a pure SET path. Converting the three SET messages to HSMP_SET_GET also keeps them accepted by validate_message(), which already applies a relaxed upper-bound check on response_sz for that type. Co-developed-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muthusamy Ramalingam <muthusamy.ramalingam@amd.com> Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com> Link: https://patch.msgid.link/20260727141542.3370108-2-muralidhara.mk@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-28spi: spacemit: drop redundant dev_err_probe() around irq helpersPei Xiao
platform_get_irq() and devm_request_irq() already print an error message via dev_err_probe() on failure, so wrapping them with another dev_err_probe() results in duplicate error output. Return the error code directly instead. Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn> Link: https://patch.msgid.link/119b5f8e3ac68221307cbfcd227dc8546be0eaeb.1784527556.git.xiaopei01@kylinos.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28spi: spacemit: fix dangling TX DMA descriptor on RX prep failurePei Xiao
In k1_spi_dma_one(), the TX DMA descriptor is submitted via dmaengine_submit() before the RX descriptor is prepared. If k1_spi_dma_prep() fails for RX, the function jumps to the fallback path without terminating the already-submitted TX descriptor. So terminate the TX channel with dmaengine_terminate_sync() when RX descriptor preparation fails. Fixes: efcd8b9d1111 ("spi: spacemit: introduce SpacemiT K1 SPI controller driver") Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn> Link: https://patch.msgid.link/b402223ebff226782afd4c7da7db4ce34807f604.1784527556.git.xiaopei01@kylinos.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28nvme: enable context analysis support for nvme host driverNilay Shroff
Update nvme host driver makefile to enable support for the Clang's context anaysis. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: fix context analysis warning in tcp.cNilay Shroff
After adding Clang context annotations, compiling tcp.c reports the following warning while context analysis is enabled: drivers/nvme/host/tcp.c:2572:24: warning: passing pointer to variable 'list' requires holding mutex 'nvme_tcp_ctrl_mutex' [-Wthread-safety-pointer] 2572 | if (list_empty(&ctrl->list)) | ^ The above warning is triggered because ctrl->list is guarded with mutex nvme_tcp_ctrl_mutex but when list_empty(&ctrl->list) is invoked it doesn't acquire nvme_tcp_ctrl_mutex. Replace list_empty() with list_empty_careful(), which is intended for lockless inspection of list heads during teardown when no concurrent list modifications are expected. This suppresses the corresponding Clang context analysis warning while preserving the existing behavior. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations in tcp.cNilay Shroff
The nvme_tcp_ctrl_list and nvme_tcp_ctrl::list are protected by nvme_tcp_ctrl_mutex. Define nvme_tcp_ctrl_list using LIST_HEAD_GUARDED(nvme_tcp_ctrl_list, nvme_tcp_ctrl_mutex) and annotate nvme_tcp_ctrl::list using __guarded_by(&nvme_tcp_ctrl_mutex) so that Clang's context analysis can validate accesses against the corresponding locking requirements. It is safe to initialize nvme_tcp_ctrl::list while allocating the controller object because the list entry has not yet been added to nvme_tcp_ctrl_list. Annotate the initialization with context_unsafe() to suppress the corresponding Clang warning. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: fix context analysis warning in rdma.cNilay Shroff
After adding Clang lock context annotations in rdma.c, Clang reports the following warning when context analysis is enabled: drivers/nvme/host/rdma.c:972:24: warning: passing pointer to variable 'list' requires holding mutex 'nvme_rdma_ctrl_mutex' [-Wthread-safety-pointer] 972 | if (list_empty(&ctrl->list)) | ^ The warning is triggered because ctrl->list is annotated as being protected by nvme_rdma_ctrl_mutex, but list_empty(&ctrl->list) is invoked without holding that mutex. Replace list_empty() with list_empty_careful(), which is intended for lockless inspection of list heads during teardown when no concurrent list modifications are expected. This suppresses the corresponding context analysis warning while preserving the existing behavior. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations in rdma.cNilay Shroff
device_list and nvme_rdma_device::entry are protected by device_list_mutex. Define device_list using LIST_HEAD_GUARDED(device_list, device_list_mutex) and annotate nvme_rdma_device::entry with __guarded_by(&device_list_mutex) so that Clang's context analysis can validate accesses against the corresponding locking requirements. Similarly, nvme_rdma_ctrl_list and nvme_rdma_ctrl::list are protected by nvme_rdma_ctrl_mutex. Define nvme_rdma_ctrl_list using LIST_HEAD_GUARDED(nvme_rdma_ctrl_list, nvme_rdma_ctrl_mutex) and annotate nvme_rdma_ctrl::list with __guarded_by(&nvme_rdma_ctrl_mutex). It is safe to initialize nvme_rdma_ctrl::list while allocating the controller object because the list entry has not yet been added to nvme_rdma_ctrl_list. Annotate the initialization with context_unsafe() to suppress the corresponding Clang context analysis warning. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_queue::sq_lockNilay Shroff
nvme_queue::sq_tail, nvme_queue::last_sq_tail and nvme_queue::sq_cmds are protected by nvme_queue::sq_lock. Annotate each field with __guarded_by(&sq_lock) and annotate helpers that access them with __must_hold(&sq_lock) so that Clang's context analysis can validate the locking requirements. Access to nvme_queue::sq_tail used solely for tracing is annotated with data_race(), as they only require a lockless snapshot of the value. nvme_init_queue() initializes nvme_queue::sq_tail and nvme_queue::last_sq_tail before the queue is published and thus do not require nvme_queue::sq_lock protection. So annotate nvme_init_queue() with context_unsafe() to suppress false positive context analyzer warning. nvme_free_queue() operate on queues which are no longer reachable, and therefore do not require nvme_queue::sq_lock protection. Similarly, nvme_alloc_sq_cmds() allocates memory for nvme_queue::sq_cmds for the queue which is not yet published or in use and hence it's safe to annotate all these helpers using context_unsafe. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations in fabric.cNilay Shroff
The global nvmf_transports list is protected by nvmf_transports_rwsem and the global nvmf_hosts list is protected by nvmf_hosts_mutex. Define both lists using LIST_HEAD_GUARDED() so that Clang's context analysis can validate accesses to the lists against the corresponding locking requirements. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_subsystems_lockNilay Shroff
The global nvme_subsystems list, nvme_subsystem::entry, nvme_subsystem::ctrls, and nvme_ctrl::subsys_entry are protected by nvme_subsystems_lock. Annotate these objects with __guarded_by(&nvme_subsystems_lock) so that Clang's context analysis can validate accesses to them. __nvme_find_get_subsystem() and nvme_validate_cntlid() traverse the global subsystem list and subsystem controller list and therefore require callers to hold nvme_subsystems_lock. Annotate both helpers with __must_hold(&nvme_subsystems_lock). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_ctrl::ana_lockNilay Shroff
nvme_parse_ana_log() accesses ANA state protected by ctrl->ana_lock and therefore requires callers to hold the lock. Annotate nvme_parse_ana_log() with __must_hold(&ctrl->ana_lock) so that Clang's lock context analysis can verify the locking requirement at compile time. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_subsystem::lockNilay Shroff
Several helpers access or traverse data structures protected by nvme_subsystem::lock and therefore require callers to hold the lock. Annotate nvme_mpath_unfreeze(), nvme_mpath_wait_freeze(), nvme_mpath_start_freeze(), nvme_find_ns_head(), nvme_alloc_ns_head() and nvme_subsys_check_duplicate_ids() with __must_hold(&subsys->lock) so that Clang's lock context analysis can validate the locking requirements at compile time. Also annotate nvme_subsystem::nsheads and nvme_ns_head::delayed_removal_secs with __guarded_by(&subsys->lock), as both are protected by the subsystem lock. Annotate nvme_init_subsystem() with __context_unsafe(), as it initializes these lock-protected members before the object is published, suppressing a false positive from Clang's context analysis. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: remove redundant initialization of delayed_removal_secsNilay Shroff
nvme_ns_head is allocated with kzalloc(), so explicitly initializing nvme_ns_head::delayed_removal_secs to 0 in nvme_mpath_alloc_disk() is redundant. Removing the redundant initialization also avoids a false positive from Clang's context analysis once nvme_ns_head::delayed_removal_secs is annotated with __guarded_by(nvme_subsystem::lock). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_dev::shutdown_lockNilay Shroff
nvme_setup_io_queues_trylock() conditionally acquires dev->shutdown_lock using mutex_trylock(). The function returns 0 when the lock is successfully acquired and a negative error code otherwise. Annotate the function with __cond_acquires(0, &dev->shutdown_lock) so that Clang's lock context analysis can track the lock state based on the return value and verify correct lock usage at call sites. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_ns_head::current_pathNilay Shroff
Annotate nvme_ns_head::current_path[] with __rcu_guarded so that Clang's context analysis can validate accesses to the SRCU/RCU protected pointer. Cc: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_ns_head::requeue_listNilay Shroff
nvme_ns_head::requeue_list is protected by nvme_ns_head::requeue_lock. Annotate requeue_list with __guarded_by(&requeue_lock) so that Clang's context analysis can validate accesses to the list. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: remove redundant initialization of nvme_ns_head::requeue_listNilay Shroff
bio_list_init() is a no-op for zero-initialized objects. Remove the redundant initialization of nvme_ns_head::requeue_list from nvme_mpath_alloc_disk(). Besides simplifying the code, this also avoids a false positive from Clang's context analysis once nvme_ns_head::requeue_list is annotated with __guarded_by(&requeue_lock). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_ns_head::srcuNilay Shroff
Add Clang lock context annotations for helpers that operate under head->srcu read-side protection. The path selection helpers invoked by nvme_find_path() access SRCU- protected data through srcu_dereference() or list APIs which iterate through rcu protected list and therefore require the caller to hold head->srcu. Annotate these helpers and nvme_find_path() with __must_hold_shared(&head->srcu) so that Clang's lock context analysis can verify the SRCU locking requirements across the call chain. Also update nvme_ns_head_ctrl_ioctl() to use __releases_shared() to match the shared SRCU read-side lock acquired through srcu_read_lock(). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: add context annotations for nvme_passthru_{start|stop}Nilay Shroff
Annotate nvme_passthru_start() and nvme_passthru_end() for Clang context/thread-safety analysis. The __cond_acquires() and __cond_releases() annotations model conditional lock acquisition and release based on a function's return value. Use a nonzero return value as the abstract condition denoting that the associated locks have been acquired or released. This allows the analyzer to track the lock state across the nvme_passthru_start() / nvme_passthru_end() pair and verify correct locking semantics. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvme: update nvme_passthru_end() signatureNilay Shroff
Change nvme_passthru_end() to return the command effects value passed to it. This is a preparatory change for Clang's context/thread-safety analysis support. The conditional release annotations (__cond_releases()) model lock release based on a function's return value. Returning the existing effects value allows a subsequent patch to annotate nvme_passthru_end() as conditionally releasing locks acquired by nvme_passthru_start(). No functional change intended. A follow-up patch will add the corresponding context analysis annotations. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28list: Permit context-unguarded access with list_empty_careful()Marco Elver
With Context Analysis (viz. Clang's Thread Safety Analysis), list_heads that are __guarded_by(..) require holding the appropriate context lock when accessing and manipulating them via the list API. Because Clang's warning diagnostics do not perform inter-procedural analysis, this is enforced by Clang with -Wthread-safety-pointer in the caller at the call boundary; a warning is produced when passing a pointer to a guarded variable without holding the appropriate context locks: warning: passing pointer to variable 'list' requires holding [...] [-Wthread-safety-pointer] if (list_empty(&ctrl->list)) An exception is list_empty_careful(), which is like list_empty(), except that it is permitted to use without holding any context lock (carefully). Mark list_empty_careful() __context_unsafe, which disables context analysis within list_empty_careful(), but also suppresses warnings generated in callers related to its pointer arguments. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28list: introduce LIST_HEAD_GUARDEDNilay Shroff
Introduce LIST_HEAD_GUARDED(name, lock) to define a struct list_head annotated with __guarded_by(lock). This provides a convenient shorthand for defining lock-protected list heads and allows compiler context analysis to validate accesses to the list against the associated lock. The new helper also reduces boilerplate and improves consistency across callers that annotate struct list_head objects with __guarded_by(). This is a preparatory change for subsequent patches that annotate LIST_HEAD() instances with their protecting lock. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocationsGreg Kroah-Hartman
When fuzzing the nvme target code, I tripped a kernel warning in nvmet_tcp_map_data() because the length passed into the allocator is controlled by the remote initiator. A remote initiator that sends a command with an SGL claiming a huge number, can create a scatterlist and iovec allocation of over 1 million entries, which causes the backing kmalloc call to exceed MAX_PAGE_ORDER and then the page allocator will trip on a WARN_ON_ONCE_GFP() message: WARNING: mm/page_alloc.c:5280 __alloc_frozen_pages_noprof Workqueue: nvmet_tcp_wq nvmet_tcp_io_work ... sgl_alloc_order nvmet_tcp_map_data nvmet_tcp_try_recv_pdu As it's never good to trip a kernel warning remotely due to many systems having panic-on-warn enabled, let's silence it by just add GFP_NOWARN to the allocation flags. Assisted-by: gkh_clanker_2000 Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Keith Busch <kbusch@kernel.org>
2026-07-28spi: spi-qpic-snand: write the feature value before executing SET_FEATUREStanislaw Pal
qcom_spi_send_cmdaddr() programs NAND_FLASH_CMD/NAND_EXEC_CMD and submits the descriptors, which makes the controller execute the command immediately. For SPINAND_SET_FEATURE the value to be written is only placed into NAND_FLASH_FEATURES afterwards, by qcom_spi_io_op(), in a second submission - so the chip is programmed with whatever that register happened to hold from a previous operation, and the intended value is only applied by the *next* SET_FEATURE. Measured on a TP-Link Archer AX55 v1 (IPQ5018, ESMT F50L1G41LB): writing 0x40 to the configuration register (0xb0) leaves the chip at 0x00, and the subsequent write of 0x00 leaves it at 0x40 - every write lands one operation late. This stayed unnoticed until v6.18 added SPI-NAND OTP support together with OTP entries for ESMT chips. spinand_otp_rw() enables OTP mode, reads, and disables it again, and mtd_otp_nvmem_add() does this during MTD registration. With the off-by-one, the "disable" write actually applies the previously requested value, so CFG_OTP_ENABLE ends up set: the chip stays in OTP mode, every subsequent array read returns the OTP area instead of the array (UBI reports an empty device) and all writes fail with -EIO because the OTP area is write protected. On this board that makes the whole flash unusable and the device unbootable. Write the feature value into NAND_FLASH_FEATURES as part of the same transaction, before NAND_EXEC_CMD. While at it, copy only the bytes the operation actually carries - the previous code dereferenced a 4-byte pointer on a one-byte buffer (spinand->scratchbuf). With this patch the flash contents read back bit-identical to a known-good dump of the same board taken under the vendor firmware (md5-verified across partitions), and writes work. Fixes: 7304d1909080 ("spi: spi-qpic: add driver for QCOM SPI NAND flash Interface") Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Pal <kuncy7@gmail.com> Reviewed-by: Md Sadre Alam <md.alam@oss.qualcomm.com> Link: https://patch.msgid.link/20260727163216.109938-1-kuncy7@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-28PCI: imx6: Fix i.MX6Q/DL boot hang caused by improper PHY power sequencingRichard Zhu
commit 610fa91d9863 ("PCI: imx6: Assert PERST# before enabling regulators") introduced a boot hang on i.MX6Q/DL variants by reordering imx_pcie_host_init() to call imx6q_pcie_enable_ref_clk() (which powered up the PHY) before imx6q_pcie_core_reset() (which powered it back down). Before 610fa91d9863, the sequence was: 1. imx_pcie_assert_core_reset() - power down PHY (set TEST_PD), set REF_CLK_EN 2. imx_pcie_clk_enable() - power up PHY (clear TEST_PD), set REF_CLK_EN 3. Link training starts with PHY powered up (TEST_PD cleared) 4. Link training succeeds After 610fa91d9863, the sequence became: 1. imx_pcie_clk_enable() - power up PHY (clear TEST_PD), set REF_CLK_EN 2. imx_pcie_assert_core_reset() - power down PHY (set TEST_PD), set REF_CLK_EN 3. imx_pcie_deassert_core_reset() - does nothing 4. Link training starts with PHY powered down (TEST_PD set) 5. Link training fails and boot hangs when PHY register accesses hang To fix this: - Remove TEST_PD PHY power control from imx6q_pcie_enable_ref_clk() - Remove REF_CLK_EN control from imx6q_pcie_core_reset() - Add TEST_PD PHY power control to imx6qp_pcie_core_reset(), which previously relied on imx6q_pcie_enable_ref_clk() to power up the PHY by clearing TEST_PD - Clear TEST_PD to power on PHY in imx_pcie_deassert_core_reset() These changes together ensure the correct sequence: 1. REF_CLK_EN set in clk_enable() (TEST_PD untouched) 2. TEST_PD set in assert_core_reset() (PHY power off) 3. TEST_PD cleared in deassert_core_reset() (PHY power on) 4. Link training starts with proper PHY state The i.MX6Q/DL PCIe PHY requires approximately 120us between TEST_PD de-assertion and link training start. Add usleep_range(200, 500) in imx6q_pcie_core_reset() after clearing TEST_PD to satisfy this requirement. Add explicit imx_pcie_assert_core_reset() calls in error paths and host_exit() to ensure no power leak. Fixes: 610fa91d9863 ("PCI: imx6: Assert PERST# before enabling regulators") Reported-by: Leonardo Costa <leoreis.costa@gmail.com> Closes: https://lore.kernel.org/lkml/20260629143439.361560-1-leoreis.costa@gmail.com/ Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Leonardo Costa <leonardo.costa@toradex.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260728035159.2702021-1-hongxing.zhu@oss.nxp.com
2026-07-28ALSA: usb-audio: Fix boot-time audio stuttering for USB Audio deviceZhang Heng
This USB Audio device (0x1e0b:0xd01e) exhibits audio stuttering during boot when playing audio. Once the system is fully booted, playback is normal. The device reports its isochronous endpoints with the Asynchronous sync type (bmAttributes = 0x03), which causes the driver to calculate nurbs = min(max_urbs, ...) = 3, providing only ~16ms of buffering. During boot, the higher system scheduling jitter (e.g., from init scripts, device enumeration, and driver probing) can exceed this buffer depth, causing audible stuttering. This patch adds a device-specific quirk (QUIRK_FLAG_PLAYBACK_URB_FIXUP) that applies two changes for this device: 1. Forces nurbs to MAX_URBS (12), providing sufficient buffering 2. Sets URB_ISO_ASAP flag for more consistent xHCI scheduling Both changes are required together for stable boot-time playback: - The larger buffer absorbs scheduling jitter during boot - URB_ISO_ASAP ensures consistent URB submission timing, preventing the xHCI scheduler from introducing variable delays Test methodology: - Without patch: reboot and play audio → stuttering audible in all tests (reproduced consistently across multiple attempts) - With nurbs=8 only: occasional minor stuttering observed after multiple tests (insufficient buffer depth) - With full patch (nurbs=12 + URB_ISO_ASAP): reboot and play audio → no stuttering observed (tested in 10+ reboot cycles without reproducing the issue) Signed-off-by: Zhang Heng <zhangheng@kylinos.cn> Link: https://patch.msgid.link/20260728111309.1271834-1-zhangheng@kylinos.cn Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-07-28ALSA: usb-audio: Add quirk for Corsair Virtuoso (later revision)Robert Abrahamse
Add USB mixer mapping quirk for later revisions of the Corsair Virtuoso headset with USB IDs 0x1b1c:0x0a43 (wired) and 0x1b1c:0x0a44 (wireless). These devices exhibit the same mixer label collision as earlier Virtuoso variants: all controls are labelled "Headset", causing applications like PulseAudio to move the sidetone control instead of the main playback volume. Signed-off-by: Robert Abrahamse <denobyte2@gmail.com> Link: https://patch.msgid.link/20260728140314.11601-1-denobyte2@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>