wireguard-linux/drivers/scsi, branch stable

scsi: core: Fix the unit attention counter implementation

2025-10-22T01:09:36Z

scsi_decide_disposition() may call scsi_check_sense(). scsi_decide_disposition() calls are not serialized. Hence, counter updates by scsi_check_sense() must be serialized. Hence this patch that makes the counters updated by scsi_check_sense() atomic. Cc: Kai Mäkisara Fixes: a5d518cd4e3e ("scsi: core: Add counters for New Media and Power On/Reset UNIT ATTENTIONs") Signed-off-by: Bart Van Assche Reviewed-by: Ewan D. Milne Link: https://patch.msgid.link/20251014220244.3689508-1-bvanassche@acm.org Signed-off-by: Martin K. Petersen

scsi: core: Fix a regression triggered by scsi_host_busy()

2025-10-20T15:57:52Z

Commit 995412e23bb2 ("blk-mq: Replace tags->lock with SRCU for tag iterators") introduced the following regression: Call trace: __srcu_read_lock+0x30/0x80 (P) blk_mq_tagset_busy_iter+0x44/0x300 scsi_host_busy+0x38/0x70 ufshcd_print_host_state+0x34/0x1bc ufshcd_link_startup.constprop.0+0xe4/0x2e0 ufshcd_init+0x944/0xf80 ufshcd_pltfrm_init+0x504/0x820 ufs_rockchip_probe+0x2c/0x88 platform_probe+0x5c/0xa4 really_probe+0xc0/0x38c __driver_probe_device+0x7c/0x150 driver_probe_device+0x40/0x120 __driver_attach+0xc8/0x1e0 bus_for_each_dev+0x7c/0xdc driver_attach+0x24/0x30 bus_add_driver+0x110/0x230 driver_register+0x68/0x130 __platform_driver_register+0x20/0x2c ufs_rockchip_pltform_init+0x1c/0x28 do_one_initcall+0x60/0x1e0 kernel_init_freeable+0x248/0x2c4 kernel_init+0x20/0x140 ret_from_fork+0x10/0x20 Fix this regression by making scsi_host_busy() check whether the SCSI host tag set has already been initialized. tag_set->ops is set by scsi_mq_setup_tags() just before blk_mq_alloc_tag_set() is called. This fix is based on the assumption that scsi_host_busy() and scsi_mq_setup_tags() calls are serialized. This is the case in the UFS driver. Reported-by: Sebastian Reichel Closes: https://lore.kernel.org/linux-block/pnezafputodmqlpumwfbn644ohjybouveehcjhz2hmhtcf2rka@sdhoiivync4y/ Cc: Ming Lei Cc: Jens Axboe Signed-off-by: Bart Van Assche Reviewed-by: Ming Lei Tested-by: Sebastian Reichel Link: https://patch.msgid.link/20251007214800.1678255-1-bvanassche@acm.org Signed-off-by: Martin K. Petersen

Merge branch '6.18/scsi-queue' into 6.18/scsi-fixes

2025-10-13T19:54:13Z

Pull in outstanding SCSI fixes for 6.18. Signed-off-by: Martin K. Petersen

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2025-10-11T18:49:00Z

Pull SCSI fixes from James Bottomley: "Fixes only in drivers (ufs, mvsas, qla2xxx, target) that came in just before or during the merge window. The most important one is the qla2xxx which reverts a conversion to fix flexible array member warnings, that went up in this merge window but which turned out on further testing to be causing data corruption" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: core: Include UTP error in INT_FATAL_ERRORS scsi: ufs: sysfs: Make HID attributes visible scsi: mvsas: Fix use-after-free bugs in mvs_work_queue scsi: ufs: core: Fix PM QoS mutex initialization scsi: ufs: core: Fix runtime suspend error deadlock Revert "scsi: qla2xxx: Fix memcpy() field-spanning write issue" scsi: target: target_core_configfs: Add length check to avoid buffer overflow

Merge tag 'hyperv-next-signed-20251006' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2025-10-07T15:40:15Z

Pull hyperv updates from Wei Liu: - Unify guest entry code for KVM and MSHV (Sean Christopherson) - Switch Hyper-V MSI domain to use msi_create_parent_irq_domain() (Nam Cao) - Add CONFIG_HYPERV_VMBUS and limit the semantics of CONFIG_HYPERV (Mukesh Rathor) - Add kexec/kdump support on Azure CVMs (Vitaly Kuznetsov) - Deprecate hyperv_fb in favor of Hyper-V DRM driver (Prasanna Kumar T S M) - Miscellaneous enhancements, fixes and cleanups (Abhishek Tiwari, Alok Tiwari, Nuno Das Neves, Wei Liu, Roman Kisel, Michael Kelley) * tag 'hyperv-next-signed-20251006' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hyperv: Remove the spurious null directive line MAINTAINERS: Mark hyperv_fb driver Obsolete fbdev/hyperv_fb: deprecate this in favor of Hyper-V DRM driver Drivers: hv: Make CONFIG_HYPERV bool Drivers: hv: Add CONFIG_HYPERV_VMBUS option Drivers: hv: vmbus: Fix typos in vmbus_drv.c Drivers: hv: vmbus: Fix sysfs output format for ring buffer index Drivers: hv: vmbus: Clean up sscanf format specifier in target_cpu_store() x86/hyperv: Switch to msi_create_parent_irq_domain() mshv: Use common "entry virt" APIs to do work in root before running guest entry: Rename "kvm" entry code assets to "virt" to genericize APIs entry/kvm: KVM: Move KVM details related to signal/-EINTR into KVM proper mshv: Handle NEED_RESCHED_LAZY before transferring to guest x86/hyperv: Add kexec/kdump support on Azure CVMs Drivers: hv: Simplify data structures for VMBus channel close message Drivers: hv: util: Cosmetic changes for hv_utils_transport.c mshv: Add support for a new parent partition configuration clocksource: hyper-v: Skip unnecessary checks for the root partition hyperv: Add missing field to hv_output_map_device_interrupt

scsi: libfc: Prevent integer overflow in fc_fcp_recv_data()

2025-10-07T02:27:28Z

The "offset" comes from the skb->data that we received. Here the code is verifying that "offset + len" is within bounds however it does not take integer overflows into account. Use size_add() to be safe. This would only be an issue on 32bit systems which are probably a very small percent of the users. Still, it's worth fixing just for correctness sake. Fixes: 42e9a92fe6a9 ("[SCSI] libfc: A modular Fibre Channel library") Signed-off-by: Dan Carpenter Message-Id: Signed-off-by: Martin K. Petersen

scsi: qla4xxx: Fix typos in comments

2025-10-07T02:26:16Z

Fix several spelling mistakes in qla4xxx driver comments: "Unfortunely" -> "Unfortunately" "becase" -> "because" "funcions" -> "functions" "targer_id" -> "target_id" Signed-off-by: Alok Tiwari Signed-off-by: Martin K. Petersen

scsi: storvsc: Prefer returning channel with the same CPU as on the I/O issuing CPU

2025-10-07T02:04:57Z

When selecting an outgoing channel for I/O, storvsc tries to select a channel with a returning CPU that is not the same as issuing CPU. This worked well in the past, however it doesn't work well when the Hyper-V exposes a large number of channels (up to the number of all CPUs). Use a different CPU for returning channel is not efficient on Hyper-V. Change this behavior by preferring to the channel with the same CPU as the current I/O issuing CPU whenever possible. Tests have shown improvements in newer Hyper-V/Azure environment, and no regression with older Hyper-V/Azure environments. Tested-by: Raheel Abdul Faizy Signed-off-by: Long Li Message-Id: <1759381530-7414-1-git-send-email-longli@linux.microsoft.com> Signed-off-by: Martin K. Petersen

Merge tag 'pci-v6.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

2025-10-06T17:41:03Z

Pull pci updates from Bjorn Helgaas: "Enumeration: - Add PCI_FIND_NEXT_CAP() and PCI_FIND_NEXT_EXT_CAP() macros that take config space accessor functions. Implement pci_find_capability(), pci_find_ext_capability(), and dwc, dwc endpoint, and cadence capability search interfaces with them (Hans Zhang) - Leave parent unit address 0 in 'interrupt-map' so that when we build devicetree nodes to describe PCI functions that contain multiple peripherals, we can build this property even when interrupt controllers lack 'reg' properties (Lorenzo Pieralisi) - Add a Xeon 6 quirk to disable Extended Tags and limit Max Read Request Size to 128B to avoid a performance issue (Ilpo Järvinen) - Add sysfs 'serial_number' file to expose the Device Serial Number (Matthew Wood) - Fix pci_acpi_preserve_config() memory leak (Nirmoy Das) Resource management: - Align m68k pcibios_enable_device() with other arches (Ilpo Järvinen) - Remove sparc pcibios_enable_device() implementations that don't do anything beyond what pci_enable_resources() does (Ilpo Järvinen) - Remove mips pcibios_enable_resources() and use pci_enable_resources() instead (Ilpo Järvinen) - Clean up bridge window sizing and assignment (Ilpo Järvinen), including: - Leave non-claimed bridge windows disabled - Enable bridges even if a window wasn't assigned because not all windows are required by downstream devices - Preserve bridge window type when releasing the resource, since the type is needed for reassignment - Consolidate selection of bridge windows into two new interfaces, pbus_select_window() and pbus_select_window_for_type(), so this is done consistently - Compute bridge window start and end earlier to avoid logging stale information MSI: - Add quirk to disable MSI on RDC PCI to PCIe bridges (Marcos Del Sol Vives) Error handling: - Align AER with EEH by allowing drivers to request a Bus Reset on Non-Fatal Errors (in addition to the reset on Fatal Errors that we already do) (Lukas Wunner) - If error recovery fails, emit FAILED_RECOVERY uevents for the devices, not for the bridge leading to them. This makes them correspond to BEGIN_RECOVERY uevents (Lukas Wunner) - Align AER with EEH by calling err_handler.error_detected() callbacks to notify drivers if error recovery fails (Lukas Wunner) - Align AER with EEH by restoring device error_state to pci_channel_io_normal before the err_handler.slot_reset() callback. This is earlier than before the err_handler.resume() callback (Lukas Wunner) - Emit a BEGIN_RECOVERY uevent when driver's err_handler.error_detected() requests a reset, as well as when it says recovery is complete or can be done without a reset (Niklas Schnelle) - Align s390 with AER and EEH by emitting uevents during error recovery (Niklas Schnelle) - Align EEH with AER and s390 by emitting BEGIN_RECOVERY, SUCCESSFUL_RECOVERY, or FAILED_RECOVERY uevents depending on the result of err_handler.error_detected() (Niklas Schnelle) - Fix a NULL pointer dereference in aer_ratelimit() when ACPI GHES error information identifies a device without an AER Capability (Breno Leitao) - Update error decoding and TLP Log printing for new errors in current PCIe base spec (Lukas Wunner) - Update error recovery documentation to match the current code and use consistent nomenclature (Lukas Wunner) ASPM: - Enable all ClockPM and ASPM states for devicetree platforms, since there's typically no firmware that enables ASPM This is a risky change that may uncover hardware or configuration defects at boot-time rather than when users enable ASPM via sysfs later. Booting with "pcie_aspm=off" prevents this enabling (Manivannan Sadhasivam) - Remove the qcom code that enabled ASPM (Manivannan Sadhasivam) Power management: - If a device has already been disconnected, e.g., by a hotplug removal, don't bother trying to resume it to D0 when detaching the driver. This avoids annoying "Unable to change power state from D3cold to D0" messages (Mario Limonciello) - Ensure devices are powered up before config reads for 'max_link_width', 'current_link_speed', 'current_link_width', 'secondary_bus_number', and 'subordinate_bus_number' sysfs files. This prevents using invalid data (~0) in drivers or lspci and, depending on how the PCIe controller reports errors, may avoid error interrupts or crashes (Brian Norris) Virtualization: - Add rescan/remove locking when enabling/disabling SR-IOV, which avoids list corruption on s390, where disabling SR-IOV also generates hotplug events (Niklas Schnelle) Peer-to-peer DMA: - Free struct p2p_pgmap, not a member within it, in the pci_p2pdma_add_resource() error path (Sungho Kim) Endpoint framework: - Document sysfs interface for BAR assignment of vNTB endpoint functions (Jerome Brunet) - Fix array underflow in endpoint BAR test case (Dan Carpenter) - Skip endpoint IRQ test if the IRQ is out of range to avoid false errors (Christian Bruel) - Fix endpoint test case for controllers with fixed-size BARs smaller than requested by the test (Marek Vasut) - Restore inbound translation when disabling doorbell so the endpoint doorbell test case can be run more than once (Niklas Cassel) - Avoid a NULL pointer dereference when releasing DMA channels in endpoint DMA test case (Shin'ichiro Kawasaki) - Convert tegra194 interrupt number to MSI vector to fix endpoint Kselftest MSI_TEST test case (Niklas Cassel) - Reset tegra194 BARs when running in endpoint mode so the BAR tests don't overwrite the ATU settings in BAR4 (Niklas Cassel) - Handle errors in tegra194 BPMP transactions so we don't mistakenly skip future PERST# assertion (Vidya Sagar) AMD MDB PCIe controller driver: - Update DT binding example to separate PERST# to a Root Port stanza to make multiple Root Ports possible in the future (Sai Krishna Musham) - Add driver support for PERST# being described in a Root Port stanza, falling back to the host bridge if not found there (Sai Krishna Musham) Freescale i.MX6 PCIe controller driver: - Enable the 3.3V Vaux supply if available so devices can request wakeup with either Beacon or WAKE# (Richard Zhu) MediaTek PCIe Gen3 controller driver: - Add optional sys clock ready time setting to avoid sys_clk_rdy signal glitching in MT6991 and MT8196 (AngeloGioacchino Del Regno) - Add DT binding and driver support for MT6991 and MT8196 (AngeloGioacchino Del Regno) NVIDIA Tegra PCIe controller driver: - When asserting PERST#, disable the controller instead of mistakenly disabling the PLL twice (Nagarjuna Kristam) - Convert struct tegra_msi mask_lock to raw spinlock to avoid a lock nesting error (Marek Vasut) Qualcomm PCIe controller driver: - Select PCI Power Control Slot driver so slot voltage rails can be turned on/off if described in Root Port devicetree node (Qiang Yu) - Parse only PCI bridge child nodes in devicetree, skipping unrelated nodes such as OPP (Operating Performance Points), which caused probe failures (Krishna Chaitanya Chundru) - Add 8.0 GT/s and 32.0 GT/s equalization settings (Ziyue Zhang) - Consolidate Root Port 'phy' and 'reset' properties in struct qcom_pcie_port, regardless of whether we got them from the Root Port node or the host bridge node (Manivannan Sadhasivam) - Fetch and map the ELBI register space in the DWC core rather than in each driver individually (Krishna Chaitanya Chundru) - Enable ECAM mechanism in DWC core by setting up iATU with 'CFG Shift Feature' and use this in the qcom driver (Krishna Chaitanya Chundru) - Add SM8750 compatible to qcom,pcie-sm8550.yaml (Krishna Chaitanya Chundru) - Update qcom,pcie-x1e80100.yaml to allow fifth PCIe host on Qualcomm Glymur, which is compatible with X1E80100 but doesn't have the cnoc_sf_axi clock (Qiang Yu) Renesas R-Car PCIe controller driver: - Fix a typo that prevented correct PHY initialization (Marek Vasut) - Add a missing 1ms delay after PWR reset assertion as required by the V4H manual (Marek Vasut) - Assure reset has completed before DBI access to avoid SError (Marek Vasut) - Fix inverted PHY initialization check, which sometimes led to timeouts and failure to start the controller (Marek Vasut) - Pass the correct IRQ domain to generic_handle_domain_irq() to fix a regression when converting to msi_create_parent_irq_domain() (Claudiu Beznea) - Drop the spinlock protecting the PMSR register - it's no longer required since pci_lock already serializes accesses (Marek Vasut) - Convert struct rcar_msi mask_lock to raw spinlock to avoid a lock nesting error (Marek Vasut) SOPHGO PCIe controller driver: - Check for existence of struct cdns_pcie.ops before using it to allow Cadence drivers that don't need to supply ops (Chen Wang) - Add DT binding and driver for the SOPHGO SG2042 PCIe controller (Chen Wang) STMicroelectronics STM32MP25 PCIe controller driver: - Update pinctrl documentation of initial states and use in runtime suspend/resume (Christian Bruel) - Add pinctrl_pm_select_init_state() for use by stm32 driver, which needs it during resume (Christian Bruel) - Add devicetree bindings and drivers for the STMicroelectronics STM32MP25 in host and endpoint modes (Christian Bruel) Synopsys DesignWare PCIe controller driver: - Add support for x16 in devicetree 'num-lanes' property (Konrad Dybcio) - Verify that if DT specifies a single IRQ for all eDMA channels, it is named 'dma' (Niklas Cassel) TI J721E PCIe driver: - Add MODULE_DEVICE_TABLE() so driver can be autoloaded (Siddharth Vadapalli) - Power controller off before configuring the glue layer so the controller latches the correct values on power-on (Siddharth Vadapalli) TI Keystone PCIe controller driver: - Use devm_request_irq() so 'ks-pcie-error-irq' is freed when driver exits with error (Siddharth Vadapalli) - Add Peripheral Virtualization Unit (PVU), which restricts DMA from PCIe devices to specific regions of host memory, to the ti,am65 binding (Jan Kiszka) Xilinx NWL PCIe controller driver: - Clear bootloader E_ECAM_CONTROL before merging in the new driver value to avoid writing invalid values (Jani Nurminen)" * tag 'pci-v6.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (141 commits) PCI/AER: Avoid NULL pointer dereference in aer_ratelimit() MAINTAINERS: Add entry for ST STM32MP25 PCIe drivers PCI: stm32-ep: Add PCIe Endpoint support for STM32MP25 dt-bindings: PCI: Add STM32MP25 PCIe Endpoint bindings PCI: stm32: Add PCIe host support for STM32MP25 PCI: xilinx-nwl: Fix ECAM programming PCI: j721e: Fix incorrect error message in probe() PCI: keystone: Use devm_request_irq() to free "ks-pcie-error-irq" on exit dt-bindings: PCI: qcom,pcie-x1e80100: Set clocks minItems for the fifth Glymur PCIe Controller PCI: dwc: Support 16-lane operation PCI: Add lockdep assertion in pci_stop_and_remove_bus_device() PCI/IOV: Add PCI rescan-remove locking when enabling/disabling SR-IOV PCI: rcar-host: Convert struct rcar_msi mask_lock into raw spinlock PCI: tegra194: Rename 'root_bus' to 'root_port_bus' in tegra_pcie_downstream_dev_to_D0() PCI: tegra: Convert struct tegra_msi mask_lock into raw spinlock PCI: rcar-gen4: Fix inverted break condition in PHY initialization PCI: rcar-gen4: Assure reset occurs before DBI access PCI: rcar-gen4: Add missing 1ms delay after PWR reset assertion PCI: Set up bridge resources earlier PCI: rcar-host: Drop PMSR spinlock ...

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2025-10-04T02:17:48Z

Pull SCSI updates from James Bottomley: "Usual driver updates (ufs, mpi3mr, lpfc, pm80xx, mpt3sas) plus assorted cleanups and fixes. The only core update is to sd.c and is mostly cosmetic" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (105 commits) scsi: MAINTAINERS: Update FC element owners scsi: mpt3sas: Update driver version to 54.100.00.00 scsi: mpt3sas: Add support for 22.5 Gbps SAS link rate scsi: mpt3sas: Suppress unnecessary IOCLogInfo on CONFIG_INVALID_PAGE scsi: mpt3sas: Fix crash in transport port remove by using ioc_info() scsi: ufs: ufs-qcom: Add support for limiting HS gear and rate scsi: ufs: pltfrm: Add DT support to limit HS gear and gear rate scsi: ufs: ufs-qcom: Remove redundant re-assignment to hs_rate scsi: ufs: dt-bindings: Document gear and rate limit properties scsi: ufs: core: Fix data race in CPU latency PM QoS request handling scsi: libfc: Fix potential buffer overflow in fc_ct_ms_fill() scsi: storvsc: Remove redundant ternary operators scsi: ufs: core: Change MCQ interrupt enable flow scsi: smartpqi: Replace kmalloc() + copy_from_user() with memdup_user() scsi: hpsa: Replace kmalloc() + copy_from_user() with memdup_user() scsi: hpsa: Fix potential memory leak in hpsa_big_passthru_ioctl() scsi: lpfc: Copyright updates for 14.4.0.11 patches scsi: lpfc: Update lpfc version to 14.4.0.11 scsi: lpfc: Convert debugfs directory counts from atomic to unsigned int scsi: lpfc: Clean up extraneous phba dentries ...