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2024-04-12net/mlx5e: Acquire RTNL lock before RQs/SQs activation/deactivationCarolina Jubran1-0/+7
netif_queue_set_napi asserts whether RTNL lock is held if the netdev is initialized. Acquire the RTNL lock before activating or deactivating RQs/SQs if the lock has not been held before in the flow. Fixes: f25e7b82635f ("net/mlx5e: link NAPI instances to queues and IRQs") Cc: Joe Damato <[email protected]> Signed-off-by: Carolina Jubran <[email protected]> Reviewed-by: Rahul Rameshbabu <[email protected]> Signed-off-by: Tariq Toukan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2024-04-12net/mlx5e: Use channel mdev reference instead of global mdev instance for ↵Rahul Rameshbabu1-2/+2
coalescing Channels can potentially have independent mdev instances. Do not refer to the global mdev instance in the mlx5e_priv instance for channel FW operations related to coalescing. CQ numbers that would be valid on the channel's mdev instance may not be correctly referenced if using the mlx5e_priv instance. Fixes: 67936e138586 ("net/mlx5e: Let channels be SD-aware") Signed-off-by: Rahul Rameshbabu <[email protected]> Signed-off-by: Tariq Toukan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2024-04-12net/mlx5: Restore mistakenly dropped parts in register devlink flowShay Drory2-2/+4
Code parts from cited commit were mistakenly dropped while rebasing before submission. Add them here. Fixes: c6e77aa9dd82 ("net/mlx5: Register devlink first under devlink lock") Signed-off-by: Shay Drory <[email protected]> Signed-off-by: Tariq Toukan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2024-04-12net/mlx5: SD, Handle possible devcom ERR_PTRTariq Toukan5-7/+7
Check if devcom holds an error pointer and return immediately. This fixes Smatch static checker warning: drivers/net/ethernet/mellanox/mlx5/core/lib/sd.c:221 sd_register() error: 'devcom' dereferencing possible ERR_PTR() Enhance mlx5_devcom_register_component() so it stops returning NULL, making it easier for its callers. Fixes: d3d057666090 ("net/mlx5: SD, Implement devcom communication and primary election") Reported-by: Dan Carpenter <[email protected]> Link: https://lore.kernel.org/all/[email protected]/T/ Signed-off-by: Tariq Toukan <[email protected]> Reviewed-by: Gal Pressman <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2024-04-12net/mlx5: Lag, restore buckets number to default after hash LAG deactivationShay Drory1-1/+3
The cited patch introduces the concept of buckets in LAG in hash mode. However, the patch doesn't clear the number of buckets in the LAG deactivation. This results in using the wrong number of buckets in case user create a hash mode LAG and afterwards create a non-hash mode LAG. Hence, restore buckets number to default after hash mode LAG deactivation. Fixes: 352899f384d4 ("net/mlx5: Lag, use buckets in hash mode") Signed-off-by: Shay Drory <[email protected]> Reviewed-by: Maor Gottlieb <[email protected]> Signed-off-by: Tariq Toukan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2024-04-12net: sparx5: flower: fix fragment flags handlingAsbjørn Sloth Tønnesen1-21/+40
I noticed that only 3 out of the 4 input bits were used, mt.key->flags & FLOW_DIS_IS_FRAGMENT was never checked. In order to avoid a complicated maze, I converted it to use a 16 byte mapping table. As shown in the table below the old heuristics doesn't always do the right thing, ie. when FLOW_DIS_IS_FRAGMENT=1/1 then it used to only match follow-up fragment packets. Here are all the combinations, and their resulting new/old VCAP key/mask filter: /- FLOW_DIS_IS_FRAGMENT (key/mask) | /- FLOW_DIS_FIRST_FRAG (key/mask) | | /-- new VCAP fragment (key/mask) v v v v- old VCAP fragment (key/mask) 0/0 0/0 -/- -/- impossible (due to entry cond. on mask) 0/0 0/1 -/- 0/3 !! invalid (can't match non-fragment + follow-up frag) 0/0 1/0 -/- -/- impossible (key > mask) 0/0 1/1 1/3 1/3 first fragment 0/1 0/0 0/3 3/3 !! not fragmented 0/1 0/1 0/3 3/3 !! not fragmented (+ not first fragment) 0/1 1/0 -/- -/- impossible (key > mask) 0/1 1/1 -/- 1/3 !! invalid (non-fragment and first frag) 1/0 0/0 -/- -/- impossible (key > mask) 1/0 0/1 -/- -/- impossible (key > mask) 1/0 1/0 -/- -/- impossible (key > mask) 1/0 1/1 -/- -/- impossible (key > mask) 1/1 0/0 1/1 3/3 !! some fragment 1/1 0/1 3/3 3/3 follow-up fragment 1/1 1/0 -/- -/- impossible (key > mask) 1/1 1/1 1/3 1/3 first fragment In the datasheet the VCAP fragment values are documented as: 0 = no fragment 1 = initial fragment 2 = suspicious fragment 3 = valid follow-up fragment Result: 3 combinations match the old behavior, 3 combinations have been corrected, 2 combinations are now invalid, and fail, 8 combinations are impossible. It should now be aligned with how FLOW_DIS_IS_FRAGMENT and FLOW_DIS_FIRST_FRAG is set in __skb_flow_dissect() in net/core/flow_dissector.c Since the VCAP fragment values are not a bitfield, we have to ignore the suspicious fragment value, eg. when matching on any kind of fragment with FLOW_DIS_IS_FRAGMENT=1/1. Only compile tested, and logic tested in userspace, as I unfortunately don't have access to this switch chip (yet). Fixes: d6c2964db3fe ("net: microchip: sparx5: Adding more tc flower keys for the IS2 VCAP") Signed-off-by: Asbjørn Sloth Tønnesen <[email protected]> Reviewed-by: Steen Hegelund <[email protected]> Tested-by: Daniel Machon <[email protected]> Reviewed-by: Jacob Keller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2024-04-13ata: libata-core: Allow command duration limits detection for ACS-4 drivesIgor Pylypiv1-1/+1
Even though the command duration limits (CDL) feature was first added in ACS-5 (major version 12), there are some ACS-4 (major version 11) drives that implement CDL as well. IDENTIFY_DEVICE, SUPPORTED_CAPABILITIES, and CURRENT_SETTINGS log pages are mandatory in the ACS-4 standard so it should be safe to read these log pages on older drives implementing the ACS-4 standard. Fixes: 62e4a60e0cdb ("scsi: ata: libata: Detect support for command duration limits") Cc: [email protected] Signed-off-by: Igor Pylypiv <[email protected]> Signed-off-by: Damien Le Moal <[email protected]>
2024-04-13ata: libata-scsi: Fix ata_scsi_dev_rescan() error pathDamien Le Moal1-4/+5
Commit 0c76106cb975 ("scsi: sd: Fix TCG OPAL unlock on system resume") incorrectly handles failures of scsi_resume_device() in ata_scsi_dev_rescan(), leading to a double call to spin_unlock_irqrestore() to unlock a device port. Fix this by redefining the goto labels used in case of errors and only unlock the port scsi_scan_mutex when scsi_resume_device() fails. Bug found with the Smatch static checker warning: drivers/ata/libata-scsi.c:4774 ata_scsi_dev_rescan() error: double unlocked 'ap->lock' (orig line 4757) Reported-by: Dan Carpenter <[email protected]> Fixes: 0c76106cb975 ("scsi: sd: Fix TCG OPAL unlock on system resume") Cc: [email protected] Signed-off-by: Damien Le Moal <[email protected]> Reviewed-by: Niklas Cassel <[email protected]>
2024-04-12Merge tag 'soc-fixes-6.9-1' of ↵Linus Torvalds5-46/+85
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC fixes from Arnd Bergmann: "The device tree changes this time are all for NXP i.MX platforms, addressing issues with clocks and regulators on i.MX7 and i.MX8. The old OMAP2 based Nokia N8x0 tablet get a couple of code fixes for regressions that came in. The ARM SCMI and FF-A firmware interfaces get a couple of minor bug fixes. A regression fix for RISC-V cache management addresses a problem with probe order on Sifive cores" * tag 'soc-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (23 commits) MAINTAINERS: Change Krzysztof Kozlowski's email address arm64: dts: imx8qm-ss-dma: fix can lpcg indices arm64: dts: imx8-ss-dma: fix can lpcg indices arm64: dts: imx8-ss-dma: fix adc lpcg indices arm64: dts: imx8-ss-dma: fix pwm lpcg indices arm64: dts: imx8-ss-dma: fix spi lpcg indices arm64: dts: imx8-ss-conn: fix usb lpcg indices arm64: dts: imx8-ss-lsio: fix pwm lpcg indices ARM: dts: imx7s-warp: Pass OV2680 link-frequencies ARM: dts: imx7-mba7: Use 'no-mmc' property arm64: dts: imx8-ss-conn: fix usdhc wrong lpcg clock order arm64: dts: freescale: imx8mp-venice-gw73xx-2x: fix USB vbus regulator arm64: dts: freescale: imx8mp-venice-gw72xx-2x: fix USB vbus regulator cache: sifive_ccache: Partially convert to a platform driver firmware: arm_scmi: Make raw debugfs entries non-seekable firmware: arm_scmi: Fix wrong fastchannel initialization firmware: arm_ffa: Fix the partition ID check in ffa_notification_info_get() ARM: OMAP2+: fix USB regression on Nokia N8x0 mmc: omap: restore original power up/down steps mmc: omap: fix deferred probe ...
2024-04-12Merge tag 'iommu-fixes-v6.9-rc3' of ↵Linus Torvalds7-22/+31
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: - Intel VT-d Fixes: - Allocate local memory for PRQ page - Fix WARN_ON in iommu probe path - Fix wrong use of pasid config - AMD IOMMU Fixes: - Lock inversion fix - Log message severity fix - Disable SNP when v2 page-tables are used - Mediatek driver: - Fix module autoloading * tag 'iommu-fixes-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Change log message severity iommu/vt-d: Fix WARN_ON in iommu probe path iommu/vt-d: Allocate local memory for page request queue iommu/vt-d: Fix wrong use of pasid config iommu: mtk: fix module autoloading iommu/amd: Do not enable SNP when V2 page table is enabled iommu/amd: Fix possible irq lock inversion dependency issue
2024-04-12Merge tag 'pci-v6.9-fixes-1' of ↵Linus Torvalds1-8/+0
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci Pull pci fixes from Bjorn Helgaas: - Revert a quirk that prevented Secondary Bus Reset for LSI / Agere FW643. We thought the device was broken, but the reset does work correctly on other platforms, and the reset avoids leaking data out of VMs (Bjorn Helgaas) - Update MAINTAINERS to reflect that Gustavo Pimentel is no longer reachable (Manivannan Sadhasivam) * tag 'pci-v6.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: Revert "PCI: Mark LSI FW643 to avoid bus reset" MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer
2024-04-12gpio: lpc32xx: fix module autoloadingKrzysztof Kozlowski1-0/+1
Add MODULE_DEVICE_TABLE(), so the module could be properly autoloaded based on the alias from of_device_id table. Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2024-04-12Merge tag 'block-6.9-20240412' of git://git.kernel.dk/linuxLinus Torvalds1-1/+1
Pull block fixes from Jens Axboe: - MD pull request via Song: - UAF fix (Yu) - Avoid out-of-bounds shift in blk-iocost (Rik) - Fix for q->blkg_list corruption (Ming) - Relax virt boundary mask/size segment checking (Ming) * tag 'block-6.9-20240412' of git://git.kernel.dk/linux: block: fix that blk_time_get_ns() doesn't update time after schedule block: allow device to have both virt_boundary_mask and max segment size block: fix q->blkg_list corruption during disk rebind blk-iocost: avoid out of bounds shift raid1: fix use-after-free for original bio in raid1_write_request()
2024-04-12Merge tag 'drm-fixes-2024-04-12' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds71-266/+914
Pull drm fixes from Dave Airlie: "Looks like everyone woke up after holidays, this weeks pull has a bunch of stuff all over, 2 weeks worth of amdgpu is a lot of it, then i915/xe have a few, a bunch of msm fixes, then some scattered driver fixes. I expect things will settle down for rc5. client: - Protect connector modes with mode_config mutex ast: - Fix soft lockup host1x: - Do not setup DMA for virtual addresses ivpu: - Fix deadlock in context_xa - PCI fixes - Fixes to error handling nouveau: - gsp: Fix OOB access - Fix casting panfrost: - Fix error path in MMU code qxl: - Revert "drm/qxl: simplify qxl_fence_wait" vmwgfx: - Enable DMA for SEV mappings i915: - Couple CDCLK programming fixes - HDCP related fix - 4 Bigjoiner related fixes - Fix for a circular locking around GuC on reset+wedged case xe: - Fix double display mutex initializations - Fix u32 -> u64 implicit conversions - Fix RING_CONTEXT_CONTROL not marked as masked msm: - DP refcount leak fix on disconnect - Add missing newlines to prints in msm_fb and msm_kms - fix dpu debugfs entry permissions - Fix the interface table for the catalog of X1E80100 - fix irq message printing - Bindings fix to add DP node as child of mdss for mdss node - Minor typo fix in DP driver API which handles port status change - fix CHRASHDUMP_READ() - fix HHB (highest bank bit) for a619 to fix UBWC corruption amdgpu: - GPU reset fixes - Fix some confusing logging - UMSCH fix - Aborted suspend fix - DCN 3.5 fixes - S4 fix - MES logging fixes - SMU 14 fixes - SDMA 4.4.2 fix - KASAN fix - SMU 13.0.10 fix - VCN partition fix - GFX11 fixes - DWB fixes - Plane handling fix - FAMS fix - DCN 3.1.6 fix - VSC SDP fixes - OLED panel fix - GFX 11.5 fix amdkfd: - GPU reset fixes - fix ioctl integer overflow" * tag 'drm-fixes-2024-04-12' of https://gitlab.freedesktop.org/drm/kernel: (65 commits) amdkfd: use calloc instead of kzalloc to avoid integer overflow drm/xe: Label RING_CONTEXT_CONTROL as masked drm/xe/xe_migrate: Cast to output precision before multiplying operands drm/xe/hwmon: Cast result to output precision on left shift of operand drm/xe/display: Fix double mutex initialization drm/amdgpu: differentiate external rev id for gfx 11.5.0 drm/amd/display: Adjust dprefclk by down spread percentage. drm/amd/display: Set VSC SDP Colorimetry same way for MST and SST drm/amd/display: Program VSC SDP colorimetry for all DP sinks >= 1.4 drm/amd/display: fix disable otg wa logic in DCN316 drm/amd/display: Do not recursively call manual trigger programming drm/amd/display: always reset ODM mode in context when adding first plane drm/amdgpu: fix incorrect number of active RBs for gfx11 drm/amd/display: Return max resolution supported by DWB amd/amdkfd: sync all devices to wait all processes being evicted drm/amdgpu: clear set_q_mode_offs when VM changed drm/amdgpu: Fix VCN allocation in CPX partition drm/amd/pm: fix the high voltage issue after unload drm/amd/display: Skip on writeback when it's not applicable drm/amdgpu: implement IRQ_STATE_ENABLE for SDMA v4.4.2 ...
2024-04-12s390/cio: log fake IRB eventsPeter Oberparleiter2-0/+13
Add traces when queueing and delivering fake IRBs. These are significant events that might have an impact on device driver processing and are therefore relevant for problem analysis. Reviewed-by: Vineeth Vijayan <[email protected]> Signed-off-by: Peter Oberparleiter <[email protected]> Signed-off-by: Alexander Gordeev <[email protected]>
2024-04-12s390/cio: fix race condition during online processingPeter Oberparleiter1-5/+8
A race condition exists in ccw_device_set_online() that can cause the online process to fail, leaving the affected device in an inconsistent state. As a result, subsequent attempts to set that device online fail with return code ENODEV. The problem occurs when a path verification request arrives after a wait for final device state completed, but before the result state is evaluated. Fix this by ensuring that the CCW-device lock is held between determining final state and checking result state. Note that since: commit 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers") path verification requests are much more likely to occur during boot, resulting in an increased chance of this race condition occurring. Fixes: 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers") Reviewed-by: Alexandra Winter <[email protected]> Reviewed-by: Vineeth Vijayan <[email protected]> Signed-off-by: Peter Oberparleiter <[email protected]> Signed-off-by: Alexander Gordeev <[email protected]>
2024-04-12s390/qdio: handle deferred cc1Peter Oberparleiter1-5/+23
A deferred condition code 1 response indicates that I/O was not started and should be retried. The current QDIO implementation handles a cc1 response as I/O error, resulting in a failed QDIO setup. This can happen for example when a path verification request arrives at the same time as QDIO setup I/O is started. Fix this by retrying the QDIO setup I/O when a cc1 response is received. Note that since commit 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers") commit 5ef1dc40ffa6 ("s390/cio: fix invalid -EBUSY on ccw_device_start") deferred cc1 responses are much more likely to occur. See the commit message of the latter for more background information. Fixes: 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers") Reviewed-by: Alexandra Winter <[email protected]> Signed-off-by: Peter Oberparleiter <[email protected]> Signed-off-by: Alexander Gordeev <[email protected]>
2024-04-12iommu/amd: Change log message severityVasant Hegde1-2/+2
Use consistent log severity (pr_warn) to log all messages in SNP enable path. Suggested-by: Tom Lendacky <[email protected]> Signed-off-by: Vasant Hegde <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12iommu/vt-d: Fix WARN_ON in iommu probe pathLu Baolu1-4/+7
Commit 1a75cc710b95 ("iommu/vt-d: Use rbtree to track iommu probed devices") adds all devices probed by the iommu driver in a rbtree indexed by the source ID of each device. It assumes that each device has a unique source ID. This assumption is incorrect and the VT-d spec doesn't state this requirement either. The reason for using a rbtree to track devices is to look up the device with PCI bus and devfunc in the paths of handling ATS invalidation time out error and the PRI I/O page faults. Both are PCI ATS feature related. Only track the devices that have PCI ATS capabilities in the rbtree to avoid unnecessary WARN_ON in the iommu probe path. Otherwise, on some platforms below kernel splat will be displayed and the iommu probe results in failure. WARNING: CPU: 3 PID: 166 at drivers/iommu/intel/iommu.c:158 intel_iommu_probe_device+0x319/0xd90 Call Trace: <TASK> ? __warn+0x7e/0x180 ? intel_iommu_probe_device+0x319/0xd90 ? report_bug+0x1f8/0x200 ? handle_bug+0x3c/0x70 ? exc_invalid_op+0x18/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? intel_iommu_probe_device+0x319/0xd90 ? debug_mutex_init+0x37/0x50 __iommu_probe_device+0xf2/0x4f0 iommu_probe_device+0x22/0x70 iommu_bus_notifier+0x1e/0x40 notifier_call_chain+0x46/0x150 blocking_notifier_call_chain+0x42/0x60 bus_notify+0x2f/0x50 device_add+0x5ed/0x7e0 platform_device_add+0xf5/0x240 mfd_add_devices+0x3f9/0x500 ? preempt_count_add+0x4c/0xa0 ? up_write+0xa2/0x1b0 ? __debugfs_create_file+0xe3/0x150 intel_lpss_probe+0x49f/0x5b0 ? pci_conf1_write+0xa3/0xf0 intel_lpss_pci_probe+0xcf/0x110 [intel_lpss_pci] pci_device_probe+0x95/0x120 really_probe+0xd9/0x370 ? __pfx___driver_attach+0x10/0x10 __driver_probe_device+0x73/0x150 driver_probe_device+0x19/0xa0 __driver_attach+0xb6/0x180 ? __pfx___driver_attach+0x10/0x10 bus_for_each_dev+0x77/0xd0 bus_add_driver+0x114/0x210 driver_register+0x5b/0x110 ? __pfx_intel_lpss_pci_driver_init+0x10/0x10 [intel_lpss_pci] do_one_initcall+0x57/0x2b0 ? kmalloc_trace+0x21e/0x280 ? do_init_module+0x1e/0x210 do_init_module+0x5f/0x210 load_module+0x1d37/0x1fc0 ? init_module_from_file+0x86/0xd0 init_module_from_file+0x86/0xd0 idempotent_init_module+0x17c/0x230 __x64_sys_finit_module+0x56/0xb0 do_syscall_64+0x6e/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79 Fixes: 1a75cc710b95 ("iommu/vt-d: Use rbtree to track iommu probed devices") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10689 Signed-off-by: Lu Baolu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Kevin Tian <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12iommu/vt-d: Allocate local memory for page request queueJacob Pan1-1/+1
The page request queue is per IOMMU, its allocation should be made NUMA-aware for performance reasons. Fixes: a222a7f0bb6c ("iommu/vt-d: Implement page request handling") Signed-off-by: Jacob Pan <[email protected]> Reviewed-by: Kevin Tian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lu Baolu <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12iommu/vt-d: Fix wrong use of pasid configXuchun Shang1-1/+1
The commit "iommu/vt-d: Add IOMMU perfmon support" introduce IOMMU PMU feature, but use the wrong config when set pasid filter. Fixes: 7232ab8b89e9 ("iommu/vt-d: Add IOMMU perfmon support") Signed-off-by: Xuchun Shang <[email protected]> Reviewed-by: Kan Liang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lu Baolu <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12iommu: mtk: fix module autoloadingKrzysztof Kozlowski2-0/+2
Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded based on the alias from of_device_id table. Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12iommu/amd: Do not enable SNP when V2 page table is enabledVasant Hegde1-10/+11
DTE[Mode]=0 is not supported when SNP is enabled in the host. That means to support SNP, IOMMU must be configured with V1 page table (See IOMMU spec [1] for the details). If user passes kernel command line to configure IOMMU domains with v2 page table (amd_iommu=pgtbl_v2) then disable SNP as the user asked by not forcing the page table to v1. [1] https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/specifications/48882_IOMMU.pdf Cc: Ashish Kalra <[email protected]> Cc: Michael Roth <[email protected]> Cc: Tom Lendacky <[email protected]> Signed-off-by: Vasant Hegde <[email protected]> Reviewed-by: Tom Lendacky <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12iommu/amd: Fix possible irq lock inversion dependency issueVasant Hegde1-4/+7
LOCKDEP detector reported below warning: ---------------------------------------- [ 23.796949] ======================================================== [ 23.796950] WARNING: possible irq lock inversion dependency detected [ 23.796952] 6.8.0fix+ #811 Not tainted [ 23.796954] -------------------------------------------------------- [ 23.796954] kworker/0:1/8 just changed the state of lock: [ 23.796956] ff365325e084a9b8 (&domain->lock){..-.}-{3:3}, at: amd_iommu_flush_iotlb_all+0x1f/0x50 [ 23.796969] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 23.796970] (pd_bitmap_lock){+.+.}-{3:3} [ 23.796972] and interrupts could create inverse lock ordering between them. [ 23.796973] other info that might help us debug this: [ 23.796974] Chain exists of: &domain->lock --> &dev_data->lock --> pd_bitmap_lock [ 23.796980] Possible interrupt unsafe locking scenario: [ 23.796981] CPU0 CPU1 [ 23.796982] ---- ---- [ 23.796983] lock(pd_bitmap_lock); [ 23.796985] local_irq_disable(); [ 23.796985] lock(&domain->lock); [ 23.796988] lock(&dev_data->lock); [ 23.796990] <Interrupt> [ 23.796991] lock(&domain->lock); Fix this issue by disabling interrupt when acquiring pd_bitmap_lock. Note that this is temporary fix. We have a plan to replace custom bitmap allocator with IDA allocator. Fixes: 87a6f1f22c97 ("iommu/amd: Introduce per-device domain ID to fix potential TLB aliasing issue") Reviewed-by: Suravee Suthikulpanit <[email protected]> Signed-off-by: Vasant Hegde <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Joerg Roedel <[email protected]>
2024-04-12amdkfd: use calloc instead of kzalloc to avoid integer overflowDave Airlie1-2/+2
This uses calloc instead of doing the multiplication which might overflow. Cc: [email protected] Signed-off-by: Dave Airlie <[email protected]>
2024-04-12Merge tag 'drm-msm-next-2024-04-11' of ↵Dave Airlie8-20/+54
https://gitlab.freedesktop.org/drm/msm into drm-fixes Fixes for v6.9 Display: - Fixes for PM refcount leak when DP goes to disconnected state and also when link training fails. This is also one of the issues found with the pm runtime series - Add missing newlines to prints in msm_fb and msm_kms - Change permissions of some dpu debugfs entries which write to const data from catalog to read-only to avoid protection faults - Fix the interface table for the catalog of X1E80100. This is an important fix to bringup DP for X1E80100. - Logging fix to print the callback symbol in the invalid IRQ message case rather than printing when its known to be NULL. - Bindings fix to add DP node as child of mdss for mdss node - Minor typo fix in DP driver API which handles port status change GPU: - fix CHRASHDUMP_READ() - fix HHB (highest bank bit) for a619 to fix UBWC corruption Signed-off-by: Dave Airlie <[email protected]> From: Rob Clark <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvFwRUcHGWva7oDeydq1PTiZMduuykCD2MWaFrT4iMGZA@mail.gmail.com
2024-04-11Merge tag 'cxl-fixes-6.9-rc4' of ↵Linus Torvalds7-141/+158
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl fixes from Dave Jiang: - Fix index of Clear Event Record handles in cxl_clear_event_record() - Fix use before init of map->reg_type in cxl_decode_regblock() - Fix initialization of mbox_cmd.size_out in cxl_mem_get_records_log() - Fix CXL path access_coordinate computation: - Remove unneded check of iter in loop - Fix of retrieving of access_coordinate in PCI topology walk - Fix of incorrect region access_coordinate data calculation - Consolidate of access_coordinates attached to downstream port context - Add check to validate access_coordinate validity to prevent incorrect data being exposed via sysfs * tag 'cxl-fixes-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl: Add checks to access_coordinate calculation to fail missing data cxl: Consolidate dport access_coordinate ->hb_coord and ->sw_coord into ->coord cxl: Fix incorrect region perf data calculation cxl: Fix retrieving of access_coordinates in PCIe path cxl: Remove checking of iter in cxl_endpoint_get_perf_coordinates() cxl/core: Fix initialization of mbox_cmd.size_out in get event cxl/core/regs: Fix usage of map->reg_type in cxl_decode_regblock() before assigned cxl/mem: Fix for the index of Clear Event Record Handle
2024-04-11Merge tag 'hyperv-fixes-signed-20240411' of ↵Linus Torvalds5-70/+101
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv fixes from Wei Liu: - Some cosmetic changes (Erni Sri Satya Vennela, Li Zhijian) - Introduce hv_numa_node_to_pxm_info() (Nuno Das Neves) - Fix KVP daemon to handle IPv4 and IPv6 combination for keyfile format (Shradha Gupta) - Avoid freeing decrypted memory in a confidential VM (Rick Edgecombe and Michael Kelley) * tag 'hyperv-fixes-signed-20240411' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted uio_hv_generic: Don't free decrypted memory hv_netvsc: Don't free decrypted memory Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails hv/hv_kvp_daemon: Handle IPv4 and Ipv6 combination for keyfile format hv: vmbus: Convert sprintf() family to sysfs_emit() family mshyperv: Introduce hv_numa_node_to_pxm_info() x86/hyperv: Cosmetic changes for hv_apic.c
2024-04-12Merge tag 'drm-xe-fixes-2024-04-11' of ↵Dave Airlie5-15/+9
https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes - Fix double display mutex initializations - Fix u32 -> u64 implicit conversions - Fix RING_CONTEXT_CONTROL not marked as masked Signed-off-by: Dave Airlie <[email protected]> From: Lucas De Marchi <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/ewvvtgcb2gonxvccws6nt6fqswoyfp4g43t5ex24vpqwtrxdzm@hgjoz5uirmxx
2024-04-12Merge tag 'drm-misc-fixes-2024-04-11' of ↵Dave Airlie16-75/+118
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Short summary of fixes pull: ast: - Fix soft lockup client: - Protect connector modes with mode_config mutex host1x: - Do not setup DMA for virtual addresses ivpu: - Fix deadlock in context_xa - PCI fixes - Fixes to error handling nouveau: - gsp: Fix OOB access - Fix casting panfrost: - Fix error path in MMU code qxl: - Revert "drm/qxl: simplify qxl_fence_wait" vmwgfx: - Enable DMA for SEV mappings Signed-off-by: Dave Airlie <[email protected]> From: Thomas Zimmermann <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2024-04-11Merge tag 'acpi-6.9-rc4' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix the handling of dependencies between devices in the ACPI device enumeration code and address a _UID matching regression from the 6.8 development cycle. Specifics: - Modify the ACPI device enumeration code to avoid counting dependencies that have been met already as unmet (Hans de Goede) - Make _UID matching take the integer value of 0 into account as appropriate (Raag Jadav)" * tag 'acpi-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: bus: allow _UID matching for integer zero ACPI: scan: Do not increase dep_unmet for already met dependencies
2024-04-11Merge tag 'net-6.9-rc4' of ↵Linus Torvalds42-224/+537
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from bluetooth. Current release - new code bugs: - netfilter: complete validation of user input - mlx5: disallow SRIOV switchdev mode when in multi-PF netdev Previous releases - regressions: - core: fix u64_stats_init() for lockdep when used repeatedly in one file - ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr - bluetooth: fix memory leak in hci_req_sync_complete() - batman-adv: avoid infinite loop trying to resize local TT - drv: geneve: fix header validation in geneve[6]_xmit_skb - drv: bnxt_en: fix possible memory leak in bnxt_rdma_aux_device_init() - drv: mlx5: offset comp irq index in name by one - drv: ena: avoid double-free clearing stale tx_info->xdpf value - drv: pds_core: fix pdsc_check_pci_health deadlock Previous releases - always broken: - xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING - bluetooth: fix setsockopt not validating user input - af_unix: clear stale u->oob_skb. - nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies - drv: virtio_net: fix guest hangup on invalid RSS update - drv: mlx5e: Fix mlx5e_priv_init() cleanup flow - dsa: mt7530: trap link-local frames regardless of ST Port State" * tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (59 commits) net: ena: Set tx_info->xdpf value to NULL net: ena: Fix incorrect descriptor free behavior net: ena: Wrong missing IO completions check order net: ena: Fix potential sign extension issue af_unix: Fix garbage collector racing against connect() net: dsa: mt7530: trap link-local frames regardless of ST Port State Revert "s390/ism: fix receive message buffer allocation" net: sparx5: fix wrong config being used when reconfiguring PCS net/mlx5: fix possible stack overflows net/mlx5: Disallow SRIOV switchdev mode when in multi-PF netdev net/mlx5e: RSS, Block XOR hash with over 128 channels net/mlx5e: Do not produce metadata freelist entries in Tx port ts WQE xmit net/mlx5e: HTB, Fix inconsistencies with QoS SQs number net/mlx5e: Fix mlx5e_priv_init() cleanup flow net/mlx5e: RSS, Block changing channels number when RXFH is configured net/mlx5: Correctly compare pkt reformat ids net/mlx5: Properly link new fs rules into the tree net/mlx5: offset comp irq index in name by one net/mlx5: Register devlink first under devlink lock net/mlx5: E-switch, store eswitch pointer before registering devlink_param ...
2024-04-11Merge tag 'scsi-fixes' of ↵Linus Torvalds5-11/+33
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "The most important fix is the sg one because the regression it fixes (spurious warning and use after final put) is already backported to stable. The next biggest impact is the target fix for wrong credentials used to load a module because it's affecting new kernels installed on selinux based distributions. The other three fixes are an obvious off by one and SATA protocol issues" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla2xxx: Fix off by one in qla_edif_app_getstats() scsi: hisi_sas: Modify the deadline for ata_wait_after_reset() scsi: hisi_sas: Handle the NCQ error returned by D2H frame scsi: target: Fix SELinux error when systemd-modules loads the target module scsi: sg: Avoid race in error handling & drop bogus warn
2024-04-11Merge tag 'tag-chrome-platform-fixes-for-v6.9-rc4' of ↵Linus Torvalds1-14/+14
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform fix from Tzung-Bi Shih: "Fix a NULL pointer dereference" * tag 'tag-chrome-platform-fixes-for-v6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: cros_ec_uart: properly fix race condition
2024-04-11drm/xe: Label RING_CONTEXT_CONTROL as maskedAshutosh Dixit2-4/+3
RING_CONTEXT_CONTROL is a masked register. v2: Also clean up setting register value (Lucas) Reviewed-by: Matt Roper <[email protected]> Reviewed-by: Lucas De Marchi <[email protected]> Signed-off-by: Ashutosh Dixit <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit dc30c6e7149baaae4288c742de95212b31f07438) Signed-off-by: Lucas De Marchi <[email protected]>
2024-04-11drm/xe/xe_migrate: Cast to output precision before multiplying operandsHimal Prasad Ghimiray1-4/+4
Addressing potential overflow in result of multiplication of two lower precision (u32) operands before widening it to higher precision (u64). -v2 Fix commit message and description. (Rodrigo) Cc: Rodrigo Vivi <[email protected]> Signed-off-by: Himal Prasad Ghimiray <[email protected]> Reviewed-by: Rodrigo Vivi <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Rodrigo Vivi <[email protected]> (cherry picked from commit 34820967ae7b45411f8f4f737c2d63b0c608e0d7) Signed-off-by: Lucas De Marchi <[email protected]>
2024-04-11drm/xe/hwmon: Cast result to output precision on left shift of operandKarthik Poosa1-2/+2
Address potential overflow in result of left shift of a lower precision (u32) operand before assignment to higher precision (u64) variable. v2: - Update commit message. (Himal) Fixes: 4446fcf220ce ("drm/xe/hwmon: Expose power1_max_interval") Signed-off-by: Karthik Poosa <[email protected]> Reviewed-by: Anshuman Gupta <[email protected]> Cc: Badal Nilawar <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Lucas De Marchi <[email protected]> (cherry picked from commit 883232b47b81108b0252197c747f396ecd51455a) Signed-off-by: Lucas De Marchi <[email protected]>
2024-04-11drm/xe/display: Fix double mutex initializationLucas De Marchi1-5/+0
All of these mutexes are already initialized by the display side since commit 3fef3e6ff86a ("drm/i915: move display mutex inits to display code"), so the xe shouldn´t initialize them. Fixes: 44e694958b95 ("drm/xe/display: Implement display support") Cc: Jani Nikula <[email protected]> Cc: Arun R Murthy <[email protected]> Reviewed-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Lucas De Marchi <[email protected]> (cherry picked from commit 117de185edf2c5767f03575219bf7a43b161ff0d) Signed-off-by: Lucas De Marchi <[email protected]>
2024-04-11binder: check offset alignment in binder_get_object()Carlos Llamas1-1/+3
Commit 6d98eb95b450 ("binder: avoid potential data leakage when copying txn") introduced changes to how binder objects are copied. In doing so, it unintentionally removed an offset alignment check done through calls to binder_alloc_copy_from_buffer() -> check_buffer(). These calls were replaced in binder_get_object() with copy_from_user(), so now an explicit offset alignment check is needed here. This avoids later complications when unwinding the objects gets harder. It is worth noting this check existed prior to commit 7a67a39320df ("binder: add function to copy binder object from buffer"), likely removed due to redundancy at the time. Fixes: 6d98eb95b450 ("binder: avoid potential data leakage when copying txn") Cc: [email protected] Signed-off-by: Carlos Llamas <[email protected]> Acked-by: Todd Kjos <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11comedi: vmk80xx: fix incomplete endpoint checkingNikita Zhandarovich1-23/+12
While vmk80xx does have endpoint checking implemented, some things can fall through the cracks. Depending on the hardware model, URBs can have either bulk or interrupt type, and current version of vmk80xx_find_usb_endpoints() function does not take that fully into account. While this warning does not seem to be too harmful, at the very least it will crash systems with 'panic_on_warn' set on them. Fix the issue found by Syzkaller [1] by somewhat simplifying the endpoint checking process with usb_find_common_endpoints() and ensuring that only expected endpoint types are present. This patch has not been tested on real hardware. [1] Syzkaller report: usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 781 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Call Trace: <TASK> usb_start_wait_urb+0x113/0x520 drivers/usb/core/message.c:59 vmk80xx_reset_device drivers/comedi/drivers/vmk80xx.c:227 [inline] vmk80xx_auto_attach+0xa1c/0x1a40 drivers/comedi/drivers/vmk80xx.c:818 comedi_auto_config+0x238/0x380 drivers/comedi/drivers.c:1067 usb_probe_interface+0x5cd/0xb00 drivers/usb/core/driver.c:399 ... Similar issue also found by Syzkaller: Link: https://syzkaller.appspot.com/bug?extid=5205eb2f17de3e01946e Reported-and-tested-by: [email protected] Cc: stable <[email protected]> Fixes: 49253d542cc0 ("staging: comedi: vmk80xx: factor out usb endpoint detection") Reviewed-by: Ian Abbott <[email protected]> Signed-off-by: Nikita Zhandarovich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11mei: vsc: Unregister interrupt handler for system suspendSakari Ailus3-26/+78
Unregister the MEI VSC interrupt handler before system suspend and re-register it at system resume time. This mirrors implementation of other MEI devices. This patch fixes the bug that causes continuous stream of MEI VSC errors after system resume. Fixes: 386a766c4169 ("mei: Add MEI hardware support for IVSC device") Cc: [email protected] # for 6.8 Reported-by: Dominik Brodowski <[email protected]> Signed-off-by: Wentong Wu <[email protected]> Signed-off-by: Sakari Ailus <[email protected]> Acked-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11Revert "mei: vsc: Call wake_up() in the threaded IRQ handler"Sakari Ailus1-2/+2
This reverts commit 058a38acba15fd8e7b262ec6e17c4204cb15f984. It's not necessary to avoid a spinlock, a sleeping lock on PREEMPT_RT, in an interrupt handler as the interrupt handler itself would be called in a process context if PREEMPT_RT is enabled. So revert the patch. Cc: [email protected] # for 6.8 Signed-off-by: Sakari Ailus <[email protected]> Acked-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11misc: rtsx: Fix rts5264 driver status incorrect when card removedRicky Wu1-1/+1
rts5264 driver not clean express link error and set EXTRA_CAPS_SD_EXPRESS capability back when card removed Fixes: 6a511c9b3a0d ("misc: rtsx: add to support new card reader rts5264") Cc: stable <[email protected]> Signed-off-by: Ricky Wu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11mei: me: disable RPL-S on SPS and IGN firmwaresAlexander Usyskin1-1/+1
Extend the quirk to disable MEI interface on Intel PCH Ignition (IGN) and SPS firmwares for RPL-S devices. These firmwares do not support the MEI protocol. Fixes: 3ed8c7d39cfe ("mei: me: add raptor lake point S DID") Cc: [email protected] Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11Merge tag 'icc-6.9-rc2' of ↵Greg Kroah-Hartman2-26/+8
git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-work-linus Georgi writes: interconnect fixes for v6.9-rc Here are fixes for two reported issues. One of them is a fix for a driver that tries to access a non-existent resource which prints a warning message during boot. The other one is fixing a race condition in the core framework where one struct member has been left unprotected by mutex. - interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM - interconnect: Don't access req_list while it's being manipulated Signed-off-by: Georgi Djakov <[email protected]> * tag 'icc-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc: interconnect: Don't access req_list while it's being manipulated interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM
2024-04-11speakup: Avoid crash on very long wordSamuel Thibault1-1/+1
In case a console is set up really large and contains a really long word (> 256 characters), we have to stop before the length of the word buffer. Signed-off-by: Samuel Thibault <[email protected]> Fixes: c6e3fd22cd538 ("Staging: add speakup to the staging directory") Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11usb: misc: onboard_usb_hub: Disable the USB hub clock on failureFabio Estevam1-1/+5
In case regulator_bulk_enable() fails, the previously enabled USB hub clock should be disabled. Fix it accordingly. Fixes: 65e62b8a955a ("usb: misc: onboard_usb_hub: Add support for clock input") Cc: stable <[email protected]> Signed-off-by: Fabio Estevam <[email protected]> Reviewed-by: Frieder Schrempf <[email protected]> Acked-by: Matthias Kaehlcke <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11serial: core: Fix missing shutdown and startup for serial base portTony Lindgren3-3/+55
We are seeing start_tx being called after port shutdown as noted by Jiri. This happens because we are missing the startup and shutdown related functions for the serial base port. Let's fix the issue by adding startup and shutdown functions for the serial base port to block tx flushing for the serial base port when the port is not in use. Fixes: 84a9582fd203 ("serial: core: Start managing serial controllers to enable runtime PM") Cc: stable <[email protected]> Reported-by: Jiri Slaby <[email protected]> Signed-off-by: Tony Lindgren <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2024-04-11net: ena: Set tx_info->xdpf value to NULLDavid Arinzon1-1/+3
The patch mentioned in the `Fixes` tag removed the explicit assignment of tx_info->xdpf to NULL with the justification that there's no need to set tx_info->xdpf to NULL and tx_info->num_of_bufs to 0 in case of a mapping error. Both values won't be used once the mapping function returns an error, and their values would be overridden by the next transmitted packet. While both values do indeed get overridden in the next transmission call, the value of tx_info->xdpf is also used to check whether a TX descriptor's transmission has been completed (i.e. a completion for it was polled). An example scenario: 1. Mapping failed, tx_info->xdpf wasn't set to NULL 2. A VF reset occurred leading to IO resource destruction and a call to ena_free_tx_bufs() function 3. Although the descriptor whose mapping failed was freed by the transmission function, it still passes the check if (!tx_info->skb) (skb and xdp_frame are in a union) 4. The xdp_frame associated with the descriptor is freed twice This patch returns the assignment of NULL to tx_info->xdpf to make the cleaning function knows that the descriptor is already freed. Fixes: 504fd6a5390c ("net: ena: fix DMA mapping function issues in XDP") Signed-off-by: Shay Agroskin <[email protected]> Signed-off-by: David Arinzon <[email protected]> Reviewed-by: Shannon Nelson <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
2024-04-11net: ena: Fix incorrect descriptor free behaviorDavid Arinzon1-3/+11
ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes. Fixes: 548c4940b9f1 ("net: ena: Implement XDP_TX action") Signed-off-by: Shay Agroskin <[email protected]> Signed-off-by: David Arinzon <[email protected]> Reviewed-by: Shannon Nelson <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>