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2025-05-02ublk: remove misleading "ubq" in "ubq_complete_io_cmd()"Caleb Sander Mateos
ubq_complete_io_cmd() doesn't interact with a ublk queue, so "ubq" in the name is confusing. Most likely "ubq" was meant to be "ublk". Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250430225234.2676781-4-csander@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-02ublk: fix "immepdately" typo in commentCaleb Sander Mateos
Looks like "immediately" was intended. Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250430225234.2676781-3-csander@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-02ublk: factor out ublk_commit_and_fetchUday Shankar
Move the logic for the UBLK_IO_COMMIT_AND_FETCH_REQ opcode into its own function. This also allows us to mark ublk_queue pointers as const for that operation, which can help prevent data races since we may allow concurrent operation on one ublk_queue in the future. Also open code ublk_commit_completion in ublk_commit_and_fetch to reduce the number of parameters/avoid a redundant lookup. [Restore __ublk_ch_uring_cmd() req variable used in commit d6aa0c178bf8 ("ublk: call ublk_dispatch_req() for handling UBLK_U_IO_NEED_GET_DATA")] Suggested-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Caleb Sander Mateos <csander@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Link: https://lore.kernel.org/r/20250430225234.2676781-2-csander@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-02drm: Fix potential overflow issue in event_string arrayFeng Jiang
When calling scnprintf() to append recovery method to event_string, the second argument should be `sizeof(event_string) - len`, otherwise there is a potential overflow problem. Fixes: b7cf9f4ac1b8 ("drm: Introduce device wedged event") Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn> Reviewed-by: André Almeida <andrealmeid@igalia.com> Reviewed-by: Raag Jadav <raag.jadav@intel.com> Link: https://lore.kernel.org/r/20250409014633.31303-1-jiangfeng@kylinos.cn Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2025-05-02Drivers: hv: Make the sysfs node size for the ring buffer dynamicNaman Jain
The ring buffer size varies across VMBus channels. The size of sysfs node for the ring buffer is currently hardcoded to 4 MB. Userspace clients either use fstat() or hardcode this size for doing mmap(). To address this, make the sysfs node size dynamic to reflect the actual ring buffer size for each channel. This will ensure that fstat() on ring sysfs node always returns the correct size of ring buffer. Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Naman Jain <namjain@linux.microsoft.com> Link: https://lore.kernel.org/r/20250502074811.2022-3-namjain@linux.microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02uio_hv_generic: Fix sysfs creation path for ring bufferNaman Jain
On regular bootup, devices get registered to VMBus first, so when uio_hv_generic driver for a particular device type is probed, the device is already initialized and added, so sysfs creation in hv_uio_probe() works fine. However, when the device is removed and brought back, the channel gets rescinded and the device again gets registered to VMBus. However this time, the uio_hv_generic driver is already registered to probe for that device and in this case sysfs creation is tried before the device's kobject gets initialized completely. Fix this by moving the core logic of sysfs creation of ring buffer, from uio_hv_generic to HyperV's VMBus driver, where the rest of the sysfs attributes for the channels are defined. While doing that, make use of attribute groups and macros, instead of creating sysfs directly, to ensure better error handling and code flow. Problematic path: vmbus_process_offer (A new offer comes for the VMBus device) vmbus_add_channel_work vmbus_device_register |-> device_register | |... | |-> hv_uio_probe | |... | |-> sysfs_create_bin_file (leads to a warning as | the primary channel's kobject, which is used to | create the sysfs file, is not yet initialized) |-> kset_create_and_add |-> vmbus_add_channel_kobj (initialization of the primary channel's kobject happens later) Above code flow is sequential and the warning is always reproducible in this path. Fixes: 9ab877a6ccf8 ("uio_hv_generic: make ring buffer attribute for primary channel") Cc: stable@kernel.org Suggested-by: Saurabh Sengar <ssengar@linux.microsoft.com> Suggested-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Naman Jain <namjain@linux.microsoft.com> Link: https://lore.kernel.org/r/20250502074811.2022-2-namjain@linux.microsoft.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02x86/msr: Add explicit includes of <asm/msr.h>Xin Li (Intel)
For historic reasons there are some TSC-related functions in the <asm/msr.h> header, even though there's an <asm/tsc.h> header. To facilitate the relocation of rdtsc{,_ordered}() from <asm/msr.h> to <asm/tsc.h> and to eventually eliminate the inclusion of <asm/msr.h> in <asm/tsc.h>, add an explicit <asm/msr.h> dependency to the source files that reference definitions from <asm/msr.h>. [ mingo: Clarified the changelog. ] Signed-off-by: Xin Li (Intel) <xin@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Uros Bizjak <ubizjak@gmail.com> Link: https://lore.kernel.org/r/20250501054241.1245648-1-xin@zytor.com
2025-05-02Merge tag 'v6.15-rc4' into x86/msr, to pick up fixes and resolve conflictsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-05-02usb: usbtmc: Fix erroneous generic_read ioctl returnDave Penkler
wait_event_interruptible_timeout returns a long The return value was being assigned to an int causing an integer overflow when the remaining jiffies > INT_MAX which resulted in random error returns. Use a long return value, converting to the int ioctl return only on error. Fixes: bb99794a4792 ("usb: usbtmc: Add ioctl for vendor specific read") Cc: stable@vger.kernel.org Signed-off-by: Dave Penkler <dpenkler@gmail.com> Link: https://lore.kernel.org/r/20250502070941.31819-4-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02usb: usbtmc: Fix erroneous wait_srq ioctl returnDave Penkler
wait_event_interruptible_timeout returns a long The return was being assigned to an int causing an integer overflow when the remaining jiffies > INT_MAX resulting in random error returns. Use a long return value, converting to the int ioctl return only on error. Fixes: 739240a9f6ac ("usb: usbtmc: Add ioctl USBTMC488_IOCTL_WAIT_SRQ") Cc: stable@vger.kernel.org Signed-off-by: Dave Penkler <dpenkler@gmail.com> Link: https://lore.kernel.org/r/20250502070941.31819-3-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02usb: usbtmc: Fix erroneous get_stb ioctl error returnsDave Penkler
wait_event_interruptible_timeout returns a long The return was being assigned to an int causing an integer overflow when the remaining jiffies > INT_MAX resulting in random error returns. Use a long return value and convert to int ioctl return only on error. When the return value of wait_event_interruptible_timeout was <= INT_MAX the number of remaining jiffies was returned which has no meaning for the user. Return 0 on success. Reported-by: Michael Katzmann <vk2bea@gmail.com> Fixes: dbf3e7f654c0 ("Implement an ioctl to support the USMTMC-USB488 READ_STATUS_BYTE operation.") Cc: stable@vger.kernel.org Signed-off-by: Dave Penkler <dpenkler@gmail.com> Link: https://lore.kernel.org/r/20250502070941.31819-2-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02Merge tag 'drm-xe-fixes-2025-05-01' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes Driver Changes: - Eustall locking fix and disabling on VF - Documentation fix kernel version supporting hwmon entries - SVM fixes on error handling Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/fqkoqvo62fbkvw6xoxoxutzozqksxxudbmqacjm3durid2pkak@imlxghgrk3ob
2025-05-01drm/gpusvm: set has_dma_mapping inside mapping loopDafna Hirschfeld
The 'has_dma_mapping' flag should be set once there is a mapping so it could be unmapped in case of error. v2: - Resend for CI Fixes: 99624bdff867 ("drm/gpusvm: Add support for GPU Shared Virtual Memory") Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250428024752.881292-1-matthew.brost@intel.com (cherry picked from commit f64cf7b681af72d3f715c0d0fd72091a54471c1a) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-02Merge tag 'amd-drm-fixes-6.15-2025-05-01' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.15-2025-05-01: amdgpu: - Fix possible UAF in HDCP - XGMI dma-buf fix - NBIO 7.11 fix - VCN 5.0.1 fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://lore.kernel.org/r/20250501185634.4132187-1-alexander.deucher@amd.com
2025-05-01Documentation: Document the new zoned loop block device driverDamien Le Moal
Introduce the zoned_loop.rst documentation file under admin-guide/blockdev to document the zoned loop block device driver. An overview of the driver is provided and its usage to create and delete zoned devices described. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20250407075222.170336-3-dlemoal@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-01block: new zoned loop block device driverDamien Le Moal
The zoned loop block device driver allows a user to create emulated zoned block devices using one regular file per zone as backing storage. Compared to null_blk or scsi_debug, it has the advantage of allowing emulating large zoned devices without requiring the same amount of memory as the capacity of the emulated device. Furthermore, zoned devices emulated with this driver can be re-started after a host reboot without any loss of the state of the device zones, which is something that null_blk and scsi_debug do not support. This initial implementation is simple and does not support zone resource limits. That is, a zoned loop block device limits for the maximum number of open zones and maximum number of active zones is always 0. This driver can be either compiled in-kernel or as a module, named "zloop". Compilation of this driver depends on the block layer support for zoned block device (CONFIG_BLK_DEV_ZONED must be set). Using the zloop driver to create and delete zoned block devices is done by writing commands to the zoned loop control character device file (/dev/zloop-control). Creating a device is done with: $ echo "add [options]" > /dev/zloop-control The options available for the "add" operation cat be listed by reading the zloop-control device file: $ cat /dev/zloop-control add id=%d,capacity_mb=%u,zone_size_mb=%u,zone_capacity_mb=%u,conv_zones=%u,base_dir=%s,nr_queues=%u,queue_depth=%u remove id=%d The options available allow controlling the zoned device total capacity, zone size, zone capactity of sequential zones, total number of conventional zones, base directory for the zones backing file, number of I/O queues and the maximum queue depth of I/O queues. Deleting a device is done using the "remove" command: $ echo "remove id=0" > /dev/zloop-control This implementation passes various tests using zonefs and fio (t/zbd tests) and provides a state machine for zone conditions that is compliant with the T10 ZBC and NVMe ZNS specifications. Co-developed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20250407075222.170336-2-dlemoal@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-02spi: tegra114: Don't fail set_cs_timing when delays are zeroAaron Kling
The original code would skip null delay pointers, but when the pointers were converted to point within the spi_device struct, the check was not updated to skip delays of zero. Hence all spi devices that didn't set delays would fail to probe. Fixes: 04e6bb0d6bb1 ("spi: modify set_cs_timing parameter") Cc: stable@vger.kernel.org Signed-off-by: Aaron Kling <webgeek1234@gmail.com> Link: https://patch.msgid.link/20250423-spi-tegra114-v1-1-2d608bcc12f9@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-02Merge tag 'drm-intel-fixes-2025-04-30' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes drm/i915 fixes for v6.15-rc5: - Fix build for CONFIG_DRM_I915_PXP=n Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://lore.kernel.org/r/87selquhpe.fsf@intel.com
2025-05-01Merge tag 'net-6.15-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Happy May Day. Things have calmed down on our end (knock on wood), no outstanding investigations. Including fixes from Bluetooth and WiFi. Current release - fix to a fix: - igc: fix lock order in igc_ptp_reset Current release - new code bugs: - Revert "wifi: iwlwifi: make no_160 more generic", fixes regression to Killer line of devices reported by a number of people - Revert "wifi: iwlwifi: add support for BE213", initial FW is too buggy - number of fixes for mld, the new Intel WiFi subdriver Previous releases - regressions: - wifi: mac80211: restore monitor for outgoing frames - drv: vmxnet3: fix malformed packet sizing in vmxnet3_process_xdp - eth: bnxt_en: fix timestamping FIFO getting out of sync on reset, delivering stale timestamps - use sock_gen_put() in the TCP fraglist GRO heuristic, don't assume every socket is a full socket Previous releases - always broken: - sched: adapt qdiscs for reentrant enqueue cases, fix list corruptions - xsk: fix race condition in AF_XDP generic RX path, shared UMEM can't be protected by a per-socket lock - eth: mtk-star-emac: fix spinlock recursion issues on rx/tx poll - btusb: avoid NULL pointer dereference in skb_dequeue() - dsa: felix: fix broken taprio gate states after clock jump" * tag 'net-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits) net: vertexcom: mse102x: Fix RX error handling net: vertexcom: mse102x: Add range check for CMD_RTS net: vertexcom: mse102x: Fix LEN_MASK net: vertexcom: mse102x: Fix possible stuck of SPI interrupt net: hns3: defer calling ptp_clock_register() net: hns3: fixed debugfs tm_qset size net: hns3: fix an interrupt residual problem net: hns3: store rx VLAN tag offload state for VF octeon_ep: Fix host hang issue during device reboot net: fec: ERR007885 Workaround for conventional TX net: lan743x: Fix memleak issue when GSO enabled ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations net: use sock_gen_put() when sk_state is TCP_TIME_WAIT bnxt_en: fix module unload sequence bnxt_en: Fix ethtool -d byte order for 32-bit values bnxt_en: Fix out-of-bound memcpy() during ethtool -w bnxt_en: Fix coredump logic to free allocated buffer bnxt_en: delay pci_alloc_irq_vectors() in the AER path bnxt_en: call pci_alloc_irq_vectors() after bnxt_reserve_rings() bnxt_en: Add missing skb_mark_for_recycle() in bnxt_rx_vlan() ...
2025-05-01x86/devmem: Remove duplicate range_is_allowed() definitionDan Williams
17 years ago, Venki suggested [1] "A future improvement would be to avoid the range_is_allowed duplication". The only thing preventing a common implementation is that phys_mem_access_prot_allowed() expects the range check to exit immediately when PAT is disabled [2]. I.e. there is no cache conflict to manage in that case. This cleanup was noticed on the path to considering changing range_is_allowed() policy to blanket deny /dev/mem for private (confidential computing) memory. Note, however that phys_mem_access_prot_allowed() has long since stopped being relevant for managing cache-type validation due to [3], and [4]. Commit 0124cecfc85a ("x86, PAT: disable /dev/mem mmap RAM with PAT") [1] Commit 9e41bff2708e ("x86: fix /dev/mem mmap breakage when PAT is disabled") [2] Commit 1886297ce0c8 ("x86/mm/pat: Fix BUG_ON() in mmap_mem() on QEMU/i386") [3] Commit 0c3c8a18361a ("x86, PAT: Remove duplicate memtype reserve in devmem mmap") [4] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Nikolay Borisov <nik.borisov@suse.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/all/20250430024622.1134277-2-dan.j.williams%40intel.com
2025-05-01drm/xe/eustall: Do not support EU stall on SRIOV VFHarish Chegondi
EU stall sampling is not supported on SRIOV VF. Do not initialize or open EU stall stream on SRIOV VF. Fixes: 9a0b11d4cf3b ("drm/xe/eustall: Add support to init, enable and disable EU stall sampling") Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Link: https://lore.kernel.org/r/10db5d1c7e17aadca7078ff74575b7ffc0d5d6b8.1745215022.git.harish.chegondi@intel.com (cherry picked from commit 6ed20625a4b8189a1bd6598aa58e03147ce378ee) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-01drm/xe/eustall: Resolve a possible circular locking dependencyHarish Chegondi
Use a separate lock in the polling function eu_stall_data_buf_poll() instead of eu_stall->stream_lock. This would prevent a possible circular locking dependency leading to a deadlock as described below. This would also require additional locking with the new lock in the read function. <4> [787.192986] ====================================================== <4> [787.192988] WARNING: possible circular locking dependency detected <4> [787.192991] 6.14.0-rc7-xe+ #1 Tainted: G U <4> [787.192993] ------------------------------------------------------ <4> [787.192994] xe_eu_stall/20093 is trying to acquire lock: <4> [787.192996] ffff88819847e2c0 ((work_completion) (&(&stream->buf_poll_work)->work)), at: __flush_work+0x1f8/0x5e0 <4> [787.193005] but task is already holding lock: <4> [787.193007] ffff88814ce83ba8 (&gt->eu_stall->stream_lock){3:3}, at: xe_eu_stall_stream_ioctl+0x41/0x6a0 [xe] <4> [787.193090] which lock already depends on the new lock. <4> [787.193093] the existing dependency chain (in reverse order) is: <4> [787.193095] -> #1 (&gt->eu_stall->stream_lock){+.+.}-{3:3}: <4> [787.193099] __mutex_lock+0xb4/0xe40 <4> [787.193104] mutex_lock_nested+0x1b/0x30 <4> [787.193106] eu_stall_data_buf_poll_work_fn+0x44/0x1d0 [xe] <4> [787.193155] process_one_work+0x21c/0x740 <4> [787.193159] worker_thread+0x1db/0x3c0 <4> [787.193161] kthread+0x10d/0x270 <4> [787.193164] ret_from_fork+0x44/0x70 <4> [787.193168] ret_from_fork_asm+0x1a/0x30 <4> [787.193172] -> #0 ((work_completion)(&(&stream->buf_poll_work)->work)){+.+.}-{0:0}: <4> [787.193176] __lock_acquire+0x1637/0x2810 <4> [787.193180] lock_acquire+0xc9/0x300 <4> [787.193183] __flush_work+0x219/0x5e0 <4> [787.193186] cancel_delayed_work_sync+0x87/0x90 <4> [787.193189] xe_eu_stall_disable_locked+0x9a/0x260 [xe] <4> [787.193237] xe_eu_stall_stream_ioctl+0x5b/0x6a0 [xe] <4> [787.193285] __x64_sys_ioctl+0xa4/0xe0 <4> [787.193289] x64_sys_call+0x131e/0x2650 <4> [787.193292] do_syscall_64+0x91/0x180 <4> [787.193295] entry_SYSCALL_64_after_hwframe+0x76/0x7e <4> [787.193299] other info that might help us debug this: <4> [787.193302] Possible unsafe locking scenario: <4> [787.193304] CPU0 CPU1 <4> [787.193305] ---- ---- <4> [787.193306] lock(&gt->eu_stall->stream_lock); <4> [787.193308] lock((work_completion) (&(&stream->buf_poll_work)->work)); <4> [787.193311] lock(&gt->eu_stall->stream_lock); <4> [787.193313] lock((work_completion) (&(&stream->buf_poll_work)->work)); <4> [787.193315] *** DEADLOCK *** Fixes: 760edec939685 ("drm/xe/eustall: Add support to read() and poll() EU stall data") Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4598 Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Link: https://lore.kernel.org/r/c896932fca84f79db2df5942911997ed77b2b9b6.1744934656.git.harish.chegondi@intel.com (cherry picked from commit c2b1f1b8641372bb2e563c49eb25632623a860fc) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-05-01platform: Fix race condition during DMA configure at IOMMU probe timeWill McVicker
To avoid a race between the IOMMU probing thread and the device driver async probing thread during configuration of the platform DMA, update `platform_dma_configure()` to read `dev->driver` once and test if it's NULL before using it. This ensures that we don't de-reference an invalid platform driver pointer if the device driver is asynchronously bound while configuring the DMA. Fixes: bcb81ac6ae3c ("iommu: Get DT/ACPI parsing into the proper probe path") Signed-off-by: Will McVicker <willmcvicker@google.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20250424180420.3928523-1-willmcvicker@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01Merge tag 'iio-fixes-for-6.15a' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus Jonathan writes: IIO: 1st set of fixes for the 6.15 cycle. A mixed bunch of fixes for new and ancient issues found. multiple driver sets: - Stop leaking wakeup sources on device unbind. - Various timestamp alignment fixes that came up as part of work to add runtime checks on buffer sizing. Similarly a DMA buffer safety fix. hid-sensor-prox - Fix a bad merge conflict resolution that lost some variable assignments. - Fix handling of scale when multiple channels present. - Fix wrong application of exponent in offset calculation. adi,ad7380 - Disable offload before using the SPI bus. - Fix a wrong shift on the event threshold. adi,ad7606 - Check there is a sw_mode_config callback before using it as not all busses define one. - Fix missing hold of chip select on in multi word accesses. adi,ad7861 - Fix wrong logic on storing of mode. adi,adis16201 - Wrong resolution for inclinometer channel. adi,adxl367 - Use fresh ODR when setting activity time, not previous value. bosch,bmi270 - Fix initial sampling frequency configuration which was using the wrong register mask. rockchip,saradc - Fix clock initialization sequence to get frequency after get + enable, not before. st,lsm6dsx - Avoid 2 potential infinite loops if we see empty FIFOs ti,opt3001 - Fix a deadlock that can occur due to concurrent access to a flag. * tag 'iio-fixes-for-6.15a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (28 commits) iio: adis16201: Correct inclinometer channel resolution iio: adc: ad7606: fix serial register access iio: pressure: mprls0025pa: use aligned_s64 for timestamp iio: imu: adis16550: align buffers for timestamp staging: iio: adc: ad7816: Correct conditional logic for store mode iio: adc: ad7266: Fix potential timestamp alignment issue. iio: adc: ad7768-1: Fix insufficient alignment of timestamp. iio: adc: dln2: Use aligned_s64 for timestamp iio: accel: adxl355: Make timestamp 64-bit aligned using aligned_s64 iio: temp: maxim-thermocouple: Fix potential lack of DMA safe buffer. iio: chemical: pms7003: use aligned_s64 for timestamp iio: chemical: sps30: use aligned_s64 for timestamp iio: imu: inv_mpu6050: align buffer for timestamp iio: imu: st_lsm6dsx: Fix wakeup source leaks on device unbind iio: adc: qcom-spmi-iadc: Fix wakeup source leaks on device unbind iio: accel: fxls8962af: Fix wakeup source leaks on device unbind iio: adc: ad7380: fix event threshold shift iio: hid-sensor-prox: Fix incorrect OFFSET calculation iio: hid-sensor-prox: support multi-channel SCALE calculation iio: hid-sensor-prox: Restore lost scale assignments ...
2025-05-01usb: typec: tcpm: delay SNK_TRY_WAIT_DEBOUNCE to SRC_TRYWAIT transitionRD Babiera
This patch fixes Type-C Compliance Test TD 4.7.6 - Try.SNK DRP Connect SNKAS. The compliance tester moves into SNK_UNATTACHED during toggling and expects the PUT to apply Rp after tPDDebounce of detection. If the port is in SNK_TRY_WAIT_DEBOUNCE, it will move into SRC_TRYWAIT immediately and apply Rp. This violates TD 4.7.5.V.3, where the tester confirms that the PUT attaches Rp after the transitions to Unattached.SNK for tPDDebounce. Change the tcpm_set_state delay between SNK_TRY_WAIT_DEBOUNCE and SRC_TRYWAIT to tPDDebounce. Fixes: a0a3e04e6b2c ("staging: typec: tcpm: Check for Rp for tPDDebounce") Cc: stable <stable@kernel.org> Signed-off-by: RD Babiera <rdbabiera@google.com> Reviewed-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20250429234703.3748506-2-rdbabiera@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01USB: usbtmc: use interruptible sleep in usbtmc_readOliver Neukum
usbtmc_read() calls usbtmc_generic_read() which uses interruptible sleep, but usbtmc_read() itself uses uninterruptble sleep for mutual exclusion between threads. That makes no sense. Both should use interruptible sleep. Fixes: 5b775f672cc99 ("USB: add USB test and measurement class driver") Cc: stable <stable@kernel.org> Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://lore.kernel.org/r/20250430134810.226015-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: cdnsp: fix L1 resume issue for RTL_REVISION_NEW_LPM versionPawel Laszczak
The controllers with rtl version larger than RTL_REVISION_NEW_LPM (0x00002700) has bug which causes that controller doesn't resume from L1 state. It happens if after receiving LPM packet controller starts transitioning to L1 and in this moment the driver force resuming by write operation to PORTSC.PLS. It's corner case and happens when write operation to PORTSC occurs during device delay before transitioning to L1 after transmitting ACK time (TL1TokenRetry). Forcing transition from L1->L0 by driver for revision larger than RTL_REVISION_NEW_LPM is not needed, so driver can simply fix this issue through block call of cdnsp_force_l0_go function. Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver") Cc: stable <stable@kernel.org> Signed-off-by: Pawel Laszczak <pawell@cadence.com> Acked-by: Peter Chen <peter.chen@kernel.org> Link: https://lore.kernel.org/r/PH7PR07MB9538B55C3A6E71F9ED29E980DD842@PH7PR07MB9538.namprd07.prod.outlook.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: typec: ucsi: displayport: Fix NULL pointer accessAndrei Kuchynski
This patch ensures that the UCSI driver waits for all pending tasks in the ucsi_displayport_work workqueue to finish executing before proceeding with the partner removal. Cc: stable <stable@kernel.org> Fixes: af8622f6a585 ("usb: typec: ucsi: Support for DisplayPort alt mode") Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Benson Leung <bleung@chromium.org> Link: https://lore.kernel.org/r/20250424084429.3220757-3-akuchynski@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: typec: ucsi: displayport: Fix deadlockAndrei Kuchynski
This patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock functions to the UCSI driver. ucsi_con_mutex_lock ensures the connector mutex is only locked if a connection is established and the partner pointer is valid. This resolves a deadlock scenario where ucsi_displayport_remove_partner holds con->mutex waiting for dp_altmode_work to complete while dp_altmode_work attempts to acquire it. Cc: stable <stable@kernel.org> Fixes: af8622f6a585 ("usb: typec: ucsi: Support for DisplayPort alt mode") Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20250424084429.3220757-2-akuchynski@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: misc: onboard_usb_dev: fix support for Cypress HX3 hubsLukasz Czechowski
The Cypress HX3 USB3.0 hubs use different PID values depending on the product variant. The comment in compatibles table is misleading, as the currently used PIDs (0x6504 and 0x6506 for USB 3.0 and USB 2.0, respectively) are defaults for the CYUSB331x, while CYUSB330x and CYUSB332x variants use different values. Based on the datasheet [1], update the compatible usb devices table to handle different types of the hub. The change also includes vendor mode PIDs, which are used by the hub in I2C Master boot mode, if connected EEPROM contains invalid signature or is blank. This allows to correctly boot the hub even if the EEPROM will have broken content. Number of vcc supplies and timing requirements are the same for all HX variants, so the platform driver's match table does not have to be extended. [1] https://www.infineon.com/dgdl/Infineon-HX3_USB_3_0_Hub_Consumer_Industrial-DataSheet-v22_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0ecb53f644b8 Table 9. PID Values Fixes: b43cd82a1a40 ("usb: misc: onboard-hub: add support for Cypress HX3 USB 3.0 family") Cc: stable <stable@kernel.org> Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com> Link: https://lore.kernel.org/r/20250425-onboard_usb_dev-v2-1-4a76a474a010@thaumatec.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: uhci-platform: Make the clock really optionalAlexey Charkov
Device tree bindings state that the clock is optional for UHCI platform controllers, and some existing device trees don't provide those - such as those for VIA/WonderMedia devices. The driver however fails to probe now if no clock is provided, because devm_clk_get returns an error pointer in such case. Switch to devm_clk_get_optional instead, so that it could probe again on those platforms where no clocks are given. Cc: stable <stable@kernel.org> Fixes: 26c502701c52 ("usb: uhci: Add clk support to uhci-platform") Signed-off-by: Alexey Charkov <alchark@gmail.com> Link: https://lore.kernel.org/r/20250425-uhci-clock-optional-v1-1-a1d462592f29@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: dwc3: gadget: Make gadget_wakeup asynchronousPrashanth K
Currently gadget_wakeup() waits for U0 synchronously if it was called from func_wakeup(), this is because we need to send the function wakeup command soon after the link is active. And the call is made synchronous by polling DSTS continuosly for 20000 times in __dwc3_gadget_wakeup(). But it observed that sometimes the link is not active even after polling 20K times, leading to remote wakeup failures. Adding a small delay between each poll helps, but that won't guarantee resolution in future. Hence make the gadget_wakeup completely asynchronous. Since multiple interfaces can issue a function wakeup at once, add a new variable wakeup_pending_funcs which will indicate the functions that has issued func_wakup, this is represented in a bitmap format. If the link is in U3, dwc3_gadget_func_wakeup() will set the bit corresponding to interface_id and bail out. Once link comes back to U0, linksts_change irq is triggered, where the function wakeup command is sent based on bitmap. Cc: stable <stable@kernel.org> Fixes: 92c08a84b53e ("usb: dwc3: Add function suspend and function wakeup support") Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/20250422103231.1954387-4-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: Use get_status callback to set remote wakeup capabilityPrashanth K
Currently when the host sends GET_STATUS request for an interface, we use get_status callbacks to set/clear remote wakeup capability of that interface. And if get_status callback isn't present for that interface, then we assume its remote wakeup capability based on bmAttributes. Now consider a scenario, where we have a USB configuration with multiple interfaces (say ECM + ADB), here ECM is remote wakeup capable and as of now ADB isn't. And bmAttributes will indicate the device as wakeup capable. With the current implementation, when host sends GET_STATUS request for both interfaces, we will set FUNC_RW_CAP for both. This results in USB3 CV Chapter 9.15 (Function Remote Wakeup Test) failures as host expects remote wakeup from both interfaces. The above scenario is just an example, and the failure can be observed if we use configuration with any interface except ECM. Hence avoid configuring remote wakeup capability from composite driver based on bmAttributes, instead use get_status callbacks and let the function drivers decide this. Cc: stable <stable@kernel.org> Fixes: 481c225c4802 ("usb: gadget: Handle function suspend feature selector") Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/20250422103231.1954387-3-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: f_ecm: Add get_status callbackPrashanth K
When host sends GET_STATUS to ECM interface, handle the request from the function driver. Since the interface is wakeup capable, set the corresponding bit, and set RW bit if the function is already armed for wakeup by the host. Cc: stable <stable@kernel.org> Fixes: 481c225c4802 ("usb: gadget: Handle function suspend feature selector") Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/20250422103231.1954387-2-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: host: tegra: Prevent host controller crash when OTG port is usedJim Lin
When a USB device is connected to the OTG port, the tegra_xhci_id_work() routine transitions the PHY to host mode and calls xhci_hub_control() with the SetPortFeature command to enable port power. In certain cases, the XHCI controller may be in a low-power state when this operation occurs. If xhci_hub_control() is invoked while the controller is suspended, the PORTSC register may return 0xFFFFFFFF, indicating a read failure. This causes xhci_hc_died() to be triggered, leading to host controller shutdown. Example backtrace: [ 105.445736] Workqueue: events tegra_xhci_id_work [ 105.445747] dump_backtrace+0x0/0x1e8 [ 105.445759] xhci_hc_died.part.48+0x40/0x270 [ 105.445769] tegra_xhci_set_port_power+0xc0/0x240 [ 105.445774] tegra_xhci_id_work+0x130/0x240 To prevent this, ensure the controller is fully resumed before interacting with hardware registers by calling pm_runtime_get_sync() prior to the host mode transition and xhci_hub_control(). Fixes: f836e7843036 ("usb: xhci-tegra: Add OTG support") Cc: stable <stable@kernel.org> Signed-off-by: Jim Lin <jilin@nvidia.com> Signed-off-by: Wayne Chang <waynec@nvidia.com> Link: https://lore.kernel.org/r/20250422114001.126367-1-waynec@nvidia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: cdnsp: Fix issue with resuming from L1Pawel Laszczak
In very rare cases after resuming controller from L1 to L0 it reads registers before the clock UTMI have been enabled and as the result driver reads incorrect value. Most of registers are in APB domain clock but some of them (e.g. PORTSC) are in UTMI domain clock. After entering to L1 state the UTMI clock can be disabled. When controller transition from L1 to L0 the port status change event is reported and in interrupt runtime function driver reads PORTSC. During this read operation controller synchronize UTMI and APB domain but UTMI clock is still disabled and in result it reads 0xFFFFFFFF value. To fix this issue driver increases APB timeout value. The issue is platform specific and if the default value of APB timeout is not sufficient then this time should be set Individually for each platform. Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver") Cc: stable <stable@kernel.org> Signed-off-by: Pawel Laszczak <pawell@cadence.com> Acked-by: Peter Chen <peter.chen@kernel.org> Link: https://lore.kernel.org/r/PH7PR07MB953846C57973E4DB134CAA71DDBF2@PH7PR07MB9538.namprd07.prod.outlook.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: tegra-xudc: ACK ST_RC after clearing CTRL_RUNWayne Chang
We identified a bug where the ST_RC bit in the status register was not being acknowledged after clearing the CTRL_RUN bit in the control register. This could lead to unexpected behavior in the USB gadget drivers. This patch resolves the issue by adding the necessary code to explicitly acknowledge ST_RC after clearing CTRL_RUN based on the programming sequence, ensuring proper state transition. Fixes: 49db427232fe ("usb: gadget: Add UDC driver for tegra XUSB device mode controller") Cc: stable <stable@kernel.org> Signed-off-by: Wayne Chang <waynec@nvidia.com> Link: https://lore.kernel.org/r/20250418081228.1194779-1-waynec@nvidia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01drm/amdgpu: Add DPG pause for VCN v5.0.1Sonny Jiang
For vcn5.0.1 only, enable DPG PAUSE to avoid DPG resets. Signed-off-by: Sonny Jiang <sonny.jiang@amd.com> Reviewed-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 3e5f86c14c3440171f2a3e7a68ceb739297726e9)
2025-05-01drm/amdgpu: Fix offset for HDP remap in nbio v7.11Lijo Lazar
APUs in passthrough mode use HDP flush. 0x7F000 offset used for remapping HDP flush is mapped to VPE space which could get power gated. Use another unused offset in BIF space. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit d8116a32cdbe456c7f511183eb9ab187e3d590fb) Cc: stable@vger.kernel.org
2025-05-01drm/amdgpu: Fail DMABUF map of XGMI-accessible memoryFelix Kuehling
If peer memory is XGMI-accessible, we should never access it through PCIe P2P DMA mappings. PCIe P2P is slower, has different coherence behaviour, limited or no support for atomics, or may not work at all. Fail with a warning if DMABUF mappings of such memory are attempted. Signed-off-by: Felix Kuehling <felix.kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit dbe4c63689bc6b5fd3ab72650ea4b6a667e96a68)
2025-05-01drm/amd/display: Fix slab-use-after-free in hdcpChris Bainbridge
The HDCP code in amdgpu_dm_hdcp.c copies pointers to amdgpu_dm_connector objects without incrementing the kref reference counts. When using a USB-C dock, and the dock is unplugged, the corresponding amdgpu_dm_connector objects are freed, creating dangling pointers in the HDCP code. When the dock is plugged back, the dangling pointers are dereferenced, resulting in a slab-use-after-free: [ 66.775837] BUG: KASAN: slab-use-after-free in event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.776171] Read of size 4 at addr ffff888127804120 by task kworker/0:1/10 [ 66.776179] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.14.0-rc7-00180-g54505f727a38-dirty #233 [ 66.776183] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BIOS F.17 12/18/2024 [ 66.776186] Workqueue: events event_property_validate [amdgpu] [ 66.776494] Call Trace: [ 66.776496] <TASK> [ 66.776497] dump_stack_lvl+0x70/0xa0 [ 66.776504] print_report+0x175/0x555 [ 66.776507] ? __virt_addr_valid+0x243/0x450 [ 66.776510] ? kasan_complete_mode_report_info+0x66/0x1c0 [ 66.776515] kasan_report+0xeb/0x1c0 [ 66.776518] ? event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.776819] ? event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.777121] __asan_report_load4_noabort+0x14/0x20 [ 66.777124] event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.777342] ? __lock_acquire+0x6b40/0x6b40 [ 66.777347] ? enable_assr+0x250/0x250 [amdgpu] [ 66.777571] process_one_work+0x86b/0x1510 [ 66.777575] ? pwq_dec_nr_in_flight+0xcf0/0xcf0 [ 66.777578] ? assign_work+0x16b/0x280 [ 66.777580] ? lock_is_held_type+0xa3/0x130 [ 66.777583] worker_thread+0x5c0/0xfa0 [ 66.777587] ? process_one_work+0x1510/0x1510 [ 66.777588] kthread+0x3a2/0x840 [ 66.777591] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777594] ? trace_hardirqs_on+0x4f/0x60 [ 66.777597] ? _raw_spin_unlock_irq+0x27/0x60 [ 66.777599] ? calculate_sigpending+0x77/0xa0 [ 66.777602] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777605] ret_from_fork+0x40/0x90 [ 66.777607] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777609] ret_from_fork_asm+0x11/0x20 [ 66.777614] </TASK> [ 66.777643] Allocated by task 10: [ 66.777646] kasan_save_stack+0x39/0x60 [ 66.777649] kasan_save_track+0x14/0x40 [ 66.777652] kasan_save_alloc_info+0x37/0x50 [ 66.777655] __kasan_kmalloc+0xbb/0xc0 [ 66.777658] __kmalloc_cache_noprof+0x1c8/0x4b0 [ 66.777661] dm_dp_add_mst_connector+0xdd/0x5c0 [amdgpu] [ 66.777880] drm_dp_mst_port_add_connector+0x47e/0x770 [drm_display_helper] [ 66.777892] drm_dp_send_link_address+0x1554/0x2bf0 [drm_display_helper] [ 66.777901] drm_dp_check_and_send_link_address+0x187/0x1f0 [drm_display_helper] [ 66.777909] drm_dp_mst_link_probe_work+0x2b8/0x410 [drm_display_helper] [ 66.777917] process_one_work+0x86b/0x1510 [ 66.777919] worker_thread+0x5c0/0xfa0 [ 66.777922] kthread+0x3a2/0x840 [ 66.777925] ret_from_fork+0x40/0x90 [ 66.777927] ret_from_fork_asm+0x11/0x20 [ 66.777932] Freed by task 1713: [ 66.777935] kasan_save_stack+0x39/0x60 [ 66.777938] kasan_save_track+0x14/0x40 [ 66.777940] kasan_save_free_info+0x3b/0x60 [ 66.777944] __kasan_slab_free+0x52/0x70 [ 66.777946] kfree+0x13f/0x4b0 [ 66.777949] dm_dp_mst_connector_destroy+0xfa/0x150 [amdgpu] [ 66.778179] drm_connector_free+0x7d/0xb0 [ 66.778184] drm_mode_object_put.part.0+0xee/0x160 [ 66.778188] drm_mode_object_put+0x37/0x50 [ 66.778191] drm_atomic_state_default_clear+0x220/0xd60 [ 66.778194] __drm_atomic_state_free+0x16e/0x2a0 [ 66.778197] drm_mode_atomic_ioctl+0x15ed/0x2ba0 [ 66.778200] drm_ioctl_kernel+0x17a/0x310 [ 66.778203] drm_ioctl+0x584/0xd10 [ 66.778206] amdgpu_drm_ioctl+0xd2/0x1c0 [amdgpu] [ 66.778375] __x64_sys_ioctl+0x139/0x1a0 [ 66.778378] x64_sys_call+0xee7/0xfb0 [ 66.778381] do_syscall_64+0x87/0x140 [ 66.778385] entry_SYSCALL_64_after_hwframe+0x4b/0x53 Fix this by properly incrementing and decrementing the reference counts when making and deleting copies of the amdgpu_dm_connector pointers. (Mario: rebase on current code and update fixes tag) Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4006 Signed-off-by: Chris Bainbridge <chris.bainbridge@gmail.com> Fixes: da3fd7ac0bcf3 ("drm/amd/display: Update CP property based on HW query") Reviewed-by: Alex Hung <alex.hung@amd.com> Link: https://lore.kernel.org/r/20250417215005.37964-1-mario.limonciello@amd.com Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit d4673f3c3b3dcb74e36e53cdfc880baa7a87b330) Cc: stable@vger.kernel.org
2025-05-01net: vertexcom: mse102x: Fix RX error handlingStefan Wahren
In case the CMD_RTS got corrupted by interferences, the MSE102x doesn't allow a retransmission of the command. Instead the Ethernet frame must be shifted out of the SPI FIFO. Since the actual length is unknown, assume the maximum possible value. Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support") Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250430133043.7722-5-wahrenst@gmx.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: vertexcom: mse102x: Add range check for CMD_RTSStefan Wahren
Since there is no protection in the SPI protocol against electrical interferences, the driver shouldn't blindly trust the length payload of CMD_RTS. So introduce a bounds check for incoming frames. Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support") Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250430133043.7722-4-wahrenst@gmx.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: vertexcom: mse102x: Fix LEN_MASKStefan Wahren
The LEN_MASK for CMD_RTS doesn't cover the whole parameter mask. The Bit 11 is reserved, so adjust LEN_MASK accordingly. Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support") Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250430133043.7722-3-wahrenst@gmx.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: vertexcom: mse102x: Fix possible stuck of SPI interruptStefan Wahren
The MSE102x doesn't provide any SPI commands for interrupt handling. So in case the interrupt fired before the driver requests the IRQ, the interrupt will never fire again. In order to fix this always poll for pending packets after opening the interface. Fixes: 2f207cbf0dd4 ("net: vertexcom: Add MSE102x SPI support") Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250430133043.7722-2-wahrenst@gmx.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: hns3: defer calling ptp_clock_register()Jian Shen
Currently the ptp_clock_register() is called before relative ptp resource ready. It may cause unexpected result when upper layer called the ptp API during the timewindow. Fix it by moving the ptp_clock_register() to the function end. Fixes: 0bf5eb788512 ("net: hns3: add support for PTP") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20250430093052.2400464-5-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: hns3: fixed debugfs tm_qset sizeHao Lan
The size of the tm_qset file of debugfs is limited to 64 KB, which is too small in the scenario with 1280 qsets. The size needs to be expanded to 1 MB. Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process") Signed-off-by: Hao Lan <lanhao@huawei.com> Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Link: https://patch.msgid.link/20250430093052.2400464-4-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: hns3: fix an interrupt residual problemYonglong Liu
When a VF is passthrough to a VM, and the VM is killed, the reported interrupt may not been handled, it will remain, and won't be clear by the nic engine even with a flr or tqp reset. When the VM restart, the interrupt of the first vector may be dropped by the second enable_irq in vfio, see the issue below: https://gitlab.com/qemu-project/qemu/-/issues/2884#note_2423361621 We notice that the vfio has always behaved this way, and the interrupt is a residue of the nic engine, so we fix the problem by moving the vector enable process out of the enable_irq loop. Fixes: 08a100689d4b ("net: hns3: re-organize vector handle") Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Link: https://patch.msgid.link/20250430093052.2400464-3-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01net: hns3: store rx VLAN tag offload state for VFJian Shen
The VF driver missed to store the rx VLAN tag strip state when user change the rx VLAN tag offload state. And it will default to enable the rx vlan tag strip when re-init VF device after reset. So if user disable rx VLAN tag offload, and trig reset, then the HW will still strip the VLAN tag from packet nad fill into RX BD, but the VF driver will ignore it for rx VLAN tag offload disabled. It may cause the rx VLAN tag dropped. Fixes: b2641e2ad456 ("net: hns3: Add support of hardware rx-vlan-offload to HNS3 VF driver") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250430093052.2400464-2-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01Merge branch '200GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2025-04-29 (idpf, igc) For idpf: Michal fixes error path handling to remove memory leak. Larysa prevents reset from being called during shutdown. For igc: Jake adjusts locking order to resolve sleeping in atomic context. * '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: igc: fix lock order in igc_ptp_reset idpf: protect shutdown from reset idpf: fix potential memory leak on kcalloc() failure ==================== Link: https://patch.msgid.link/20250429221034.3909139-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>