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2026-04-30ntfs3: validate split-point offset in indx_insert_into_bufferMichael Bommarito
indx_insert_into_buffer() computes used = used1 - to_copy - sp_size; memmove(de_t, Add2Ptr(sp, sp_size), used - le32_to_cpu(hdr1->de_off)); where sp and sp_size come from hdr_find_split(). hdr_find_split() walks entries by le16_to_cpu(e->size) without validating that each step stays within hdr->used or that the size field is at least sizeof(struct NTFS_DE). index_hdr_check(), the on-load gatekeeper, only validates header-level fields (used, total, de_off) and does not walk per-entry sizes. A crafted NTFS image whose leaf INDEX_HDR reports used == total but contains one interior NTFS_DE with size = 0xFFF0 therefore passes validation, descends to indx_insert_into_buffer() through the ntfs_create() -> indx_insert_entry() path, and makes hdr_find_split() return an sp whose sp_size (0xFFF0) greatly exceeds the remaining bytes in the buffer. The u32 subtraction underflows and the memmove count becomes a near-4-GiB value, producing an out-of-bounds kernel write that corrupts adjacent allocations and panics the kernel. Reproduced on 7.0.0-rc7 with UML + KASAN via a crafted image and a single 'touch' inside the mounted directory; crash site resolves to fs/ntfs3/index.c at the memmove. Trigger requires only local mount of an attacker-supplied filesystem image (USB, loopback, or removable media auto-mount). Reject the split whenever the chosen sp plus its declared size already extends past hdr1->used. This is the minimal fix; it preserves the existing hdr_find_split() contract and relies on the same out: cleanup path as the pre-existing error returns. A prior OOB read in the very same indx_insert_into_buffer() memmove was fixed in commit b8c44949044e ("fs/ntfs3: Fix OOB read in indx_insert_into_buffer") by tightening hdr_find_e(), but that fix does not cover the split-point size field path addressed here: sp is returned by hdr_find_split(), not hdr_find_e(), and the underflow is driven by sp->size rather than hdr->used exceeding hdr->total. Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block") Cc: stable@vger.kernel.org Reported-by: Michael Bommarito <michael.bommarito@gmail.com> Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
2026-04-30ntfs3: fix out-of-bounds read in decompress_lzntTristan Madani
decompress_lznt() does not validate array index bounds before accessing the decompression table. A corrupted NTFS3 image with invalid compressed data can trigger an out-of-bounds read. Add index bounds checking to prevent the OOB access. Reported-by: syzbot+39b2fb0f2638669008ec@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Tristan Madani <tristan@talencesecurity.com> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
2026-04-30ntfs3: bound to_move in indx_insert_into_root before hdr_insert_headMichael Bommarito
indx_insert_into_root() promotes a full resident $INDEX_ROOT into $INDEX_ALLOCATION and copies all non-last resident root entries into a newly allocated INDEX_BUFFER via hdr_insert_head(). The source byte count 'to_move' is summed from the on-disk resident entry sizes and is independent of the destination buffer size, which comes from root->index_block_size (via indx->index_bits). A crafted NTFS image that keeps a valid, full resident root but shrinks root->index_block_size down to 512 after the root has been populated makes hdr_insert_head() memcpy attacker-controlled resident entry bytes past the end of the kmalloc(1u << indx->index_bits) allocation returned by indx_new(). For a 512-byte destination and a resident root whose non-last entries total 560 bytes, the memcpy overruns by 120 bytes and a following memmove extends the highest written offset to 136 bytes past the allocation. The overflow bytes are a direct copy of on-disk entries (via kmemdup), so they are fully attacker-controlled. The write is reachable from unprivileged open(O_CREAT) on a mounted crafted NTFS image: a single sufficiently long create in a directory whose resident root is already full forces root promotion and triggers the copy. This is a controlled out-of-bounds write of 120-136 bytes past a kmalloc(index_block_size) allocation, with attacker-controlled content. It is a bounded adjacent-heap corruption primitive; it is not an arbitrary-address write. Successful exploitation into a named victim object depends on the surrounding slab layout. Reject the copy at the sink. The destination's INDEX_HDR already reports hdr_total (the payload capacity of the new buffer) and hdr_used (the bytes already consumed by the terminal END entry installed by indx_new()); require that to_move fits in the remaining payload before calling hdr_insert_head(). On mismatch, fail with -EINVAL and mark the filesystem as having a detected on-disk inconsistency, which is the same behaviour as the surrounding validation in this function. Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
2026-04-30fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflowMichael Bommarito
indx_find_buffer() recursively descends the B+ tree index with no depth limit. A crafted NTFS image with circular index node references causes unbounded recursion, overflowing the kernel stack and panicking the system. This is reachable by mounting a malicious NTFS filesystem (e.g. from a USB drive via desktop automount) and deleting a file whose index entry triggers the rebalancing fallback path in indx_delete_entry(). Add a depth parameter and bail out with -EINVAL when it reaches the fnd->nodes array bound, matching the constraint already enforced by fnd_push() in indx_find(). The related function indx_find() was previously patched for a similar infinite-loop issue (commit 1732053c8a6b), but indx_find_buffer() was missed. Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4-6 Assisted-by: Codex:gpt-5-4 Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
2026-04-30accel/ivpu: Disallow re-exporting imported GEM objectsKarol Wachowski
Prevent re-exporting of imported GEM buffers by adding a custom prime_handle_to_fd callback that checks if the object is imported and returns -EOPNOTSUPP if so. Re-exporting imported GEM buffers causes loss of buffer flags settings, leading to incorrect device access and data corruption. Reported-by: Yametsu <yam3tsu@gmail.com> Fixes: 57557964b582 ("accel/ivpu: Add support for userptr buffer objects") Reviewed-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com> Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com> Cc: <stable@vger.kernel.org> # v6.19+
2026-04-30scsi: ufs: qcom: Unify user-visible "Qualcomm" nameKrzysztof Kozlowski
Various names for Qualcomm as a company are used in user-visible config options: QCOM, Qualcomm and Qualcomm Technologies. Switch to unified "Qualcomm" so it will be easier for users to identify the options when for example running menuconfig. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Link: https://patch.msgid.link/20260427070048.18017-2-krzysztof.kozlowski@oss.qualcomm.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2026-04-30net/sched: cls_flower: revert unintended changesPaolo Abeni
While applying the blamed commit 4ca07b9239bd ("net: mctp i2c: check length before marking flow active"), I unintentionally included unrelated and unacceptable changes. Revert them. Fixes: 4ca07b9239bd ("net: mctp i2c: check length before marking flow active") Reported-by: Jeremy Kerr <jk@codeconstruct.com.au> Closes: https://lore.kernel.org/netdev/bd8704fe0bd53e278add5cde4873256656623e2e.camel@codeconstruct.com.au/ Signed-off-by: Paolo Abeni <pabeni@redhat.com> Link: https://patch.msgid.link/043026a53ff84da88b17648c4b0d17f0331749cb.1777447863.git.pabeni@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30sfc: fix error code in efx_devlink_info_running_versions()Dan Carpenter
Return -EIO if efx_mcdi_rpc() doesn't return enough space. Fixes: 14743ddd2495 ("sfc: add devlink info support for ef100") Signed-off-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://patch.msgid.link/afGpsbLRHL4_H0KS@stanley.mountain Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30net: tls: fix strparser anchor skb leak on offload RX setup failureJakub Kicinski
When tls_set_device_offload_rx() fails at tls_dev_add(), the error path calls tls_sw_free_resources_rx() to clean up the SW context that was initialized by tls_set_sw_offload(). This function calls tls_sw_release_resources_rx() (which stops the strparser via tls_strp_stop()) and tls_sw_free_ctx_rx() (which kfrees the context), but never frees the anchor skb that was allocated by alloc_skb(0) in tls_strp_init(). Note that tls_sw_free_resources_rx() is exclusively used for this "failed to start offload" code path, there's no other caller. The leak did not exist before commit 84c61fe1a75b ("tls: rx: do not use the standard strparser"), because the standard strparser doesn't try to pre-allocate an skb. The normal close path in tls_sk_proto_close() handles cleanup by calling tls_sw_strparser_done() (which calls tls_strp_done()) after dropping the socket lock, because tls_strp_done() does cancel_work_sync() and the strparser work handler takes the socket lock. Fixes: 84c61fe1a75b ("tls: rx: do not use the standard strparser") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20260428231559.1358502-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30selftests/bpf: Test insns processed breakdownPaul Chaignon
This patch covers in global subprog selftests the new verifier log with the breakdown of instructions processed by global subprogs. The test ensures the log line is present and that it has the right number of subcounts. Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Link: https://lore.kernel.org/bpf/3a5157f4573edaa8846f6fc4041f715136f693b1.1777538384.git.paul.chaignon@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
2026-04-30bpf: Print breakdown of insns processed by subprogsPaul Chaignon
When using global functions (i.e. subprogs), the verifier performs function-by-function verification. In that case, the sum of the instructions processed in each global function and in the main program counts towards the 1 million instructions limit. Only that sum is reported in the verifier logs. While starting to use global functions in Cilium (finally!), we found it can be useful to have the breakdown per global function, to understand exactly where the budget is currently spent. This patch implements this breakdown, under BPF_LOG_STATS, as done for the stack depths. When iterating over subprogs, we need to skip the hidden subprogs at the end because they don't have a corresponding func_info_aux entry and calling bpf_subprog_is_global() would result in an OOB access. Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com> Link: https://lore.kernel.org/bpf/5590f9c67e614ec9054d0c7e74e87cc690a52c56.1777538384.git.paul.chaignon@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
2026-04-30MAINTAINERS: accel/ivpu: Remove myself and add Andrzej as maintainerMaciej Falkowski
As I will be departing from my current position, I will no longer maintain the driver, and remove myself from ivpu's maintainers entry. Andrzej will support Karol in maintaining the driver. Signed-off-by: Maciej Falkowski <maciej.falkowski@linux.intel.com> Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com> Reviewed-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com> Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com> Link: https://patch.msgid.link/20260429083958.2148777-1-maciej.falkowski@linux.intel.com
2026-04-30pinctrl: mediatek: eint: Drop base from mtk_eint_chip_write_mask()Chen-Yu Tsai
When support for multiple EINT base addresses was added in commit 3ef9f710efcb ("pinctrl: mediatek: Add EINT support for multiple addresses"), mtk_eint_chip_write_mask() was changed to write interrupt masks for all base addresses in one call. However the "base" parameter was left around and now causes sparse warnings: mtk-eint.c:428:44: warning: incorrect type in argument 2 (different address spaces) mtk-eint.c:428:44: expected void [noderef] __iomem *base mtk-eint.c:428:44: got void [noderef] __iomem **base mtk-eint.c:436:44: warning: incorrect type in argument 2 (different address spaces) mtk-eint.c:436:44: expected void [noderef] __iomem *base mtk-eint.c:436:44: got void [noderef] __iomem **base Since the "base" parameter is no longer needed, just drop it. Fixes: 3ef9f710efcb ("pinctrl: mediatek: Add EINT support for multiple addresses") Cc: Hao Chang <ot_chhao.chang@mediatek.com> Cc: Qingliang Li <qingliang.li@mediatek.com> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Linus Walleij <linusw@kernel.org>
2026-04-30irqchip/qcom: Unify user-visible "Qualcomm" nameKrzysztof Kozlowski
Various names for Qualcomm as a company are used in user-visible config options: QCOM, Qualcomm and Qualcomm Technologies. Switch to unified "Qualcomm" so it will be easier for users to identify the options when for example running menuconfig. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260427070121.18422-2-krzysztof.kozlowski@oss.qualcomm.com
2026-04-30irqchip/gic: Replace __ASSEMBLY__ with __ASSEMBLER__Thomas Huth
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. Standardize now on the __ASSEMBLER__ macro that is provided by the compilers. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260421113012.146528-1-thuth@redhat.com
2026-04-30irqchip/starfive: Implement irq_set_type() and irq_ack() callbacksChanghuang Liang
Add irq_set_type() callback to support configuring interrupt trigger types (level high/low, edge rising/falling) for the JHB100 interrupt controller. Also add irq_ack() callback as required by handle_edge_irq(). Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260416064751.632138-6-changhuang.liang@starfivetech.com
2026-04-30irqchip/starfive: Increase the interrupt source number up to 64Mason Huo
StarFive JHB100 SoC interrupt controller actually supports 64 interrupt sources, the original code only supported up to 32. now it is extended to 64. Also use guard(raw_spinlock) to automatically release spinlocks. Signed-off-by: Mason Huo <mason.huo@starfivetech.com> Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260416064751.632138-5-changhuang.liang@starfivetech.com
2026-04-30irqchip/starfive: Use devm_ interfaces to simplify resource releaseChanghuang Liang
Use devm_ interfaces to simplify resource release. Make clock and reset get optional as they are not used on the JHB100 SoC. Replace pr_ logging with dev_* logging. Use __free(kfree) cleanup attribute to auto-free irqc on error paths Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260416064751.632138-4-changhuang.liang@starfivetech.com
2026-04-30irqchip/starfive: Rename jh8100 to jhb100Changhuang Liang
The StarFive JH8100 SoC was discontinued before production. The newly taped-out JHB100 SoC uses the same interrupt controller IP. Rename the driver file, Kconfig symbol, and internal references from "jh8100" to "jhb100" to accurately reflect the supported hardware. Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260416064751.632138-3-changhuang.liang@starfivetech.com
2026-04-30dt-bindings: interrupt-controller: Repurpose binding for unreleased jh8100 ↵Changhuang Liang
for jhb100 The StarFive JH8100 SoC was discontinued before production. The newly taped-out JHB100 SoC uses the same interrupt controller IP. Rename the binding file, compatible string, and MAINTAINERS entry from "jh8100" to "jhb100". In JHB100 SoC, The clocks and resets are not operated by users, but they exist in the hardware. Mark them as optional. Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20260416064751.632138-2-changhuang.liang@starfivetech.com
2026-04-30irqchip/aspeed-intc: Remove AST2700-A0 supportRyan Chen
The existing AST2700 interrupt controller driver ("aspeed,ast2700-intc-ic") was written against the A0 pre-production design. From A1 onwards (retained in the A2 production silicon), the interrupt fabric was re-architected: interrupt routing is programmable and interrupt outputs can be directed to multiple upstream controllers (PSP GIC, Secondary Service Processor (SSP) NVIC, Tertiary Service Processor (TSP) NVIC, and Boot MCU interrupt controller). This design requires route resolution and a controller hierarchy model which the A0 driver cannot represent. Remove driver support for A0 in favour of the driver for the A2 production design. Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260407-irqchip-v5-4-c0b0a300a057@aspeedtech.com
2026-04-30irqchip/ast2700-intc: Add KUnit tests for route resolutionRyan Chen
Add a KUnit suite for aspeed_intc0_resolve_route(). Cover invalid arguments, invalid domain/range data, connected and disconnected mappings, and malformed upstream range cases. Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260407-irqchip-v5-3-c0b0a300a057@aspeedtech.com
2026-04-30irqchip/ast2700-intc: Add AST2700-A2 supportRyan Chen
The AST2700 interrupt fabric is shared by multiple integrated processors (PSP/SSP/TSP/BootMCU), each with its own interrupt controller and its own devicetree view of the system. As a result, interrupt routing cannot be treated as fixed: the valid route for a peripheral interrupt depends on which processor is consuming it. The INTC0 driver models this by creating a hierarchical irqdomain under the upstream interrupt controller selected by the interrupt-parent property in the devicetree. Information derived from this relationship is incorporated into the route resolution logic for the controller. The INTC1 driver implements the banked INTM-fed controller and forwards interrupts toward INTC0, without embedding assumptions about the final destination processor. Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260407-irqchip-v5-2-c0b0a300a057@aspeedtech.com
2026-04-30dt-bindings: interrupt-controller: Describe AST2700-A2 hardware instead of A0Ryan Chen
Introduce a new binding describing the AST2700 interrupt controller architecture implemented in the A2 production silicon. The AST2700 SoC has undergone multiple silicon revisions (A0, A1, A2) prior to mass production. The interrupt architecture was substantially reworked after the A0 revision for A1, and the A1 design is retained unchanged in the A2 production silicon. The existing AST2700 interrupt controller binding ("aspeed,ast2700-intc-ic") was written against the pre-production A0 design. That binding does not accurately describe the interrupt hierarchy and routing model present in A1/A2, where interrupts can be routed to multiple processor-local interrupt controllers (Primary Service Processor (PSP) GIC, Secondary Service Processor (SSP)/Tertiary Service Processor (TSP) NVICs, and BootMCU APLIC) depending on the execution context. Remove the binding for the pre-production A0 design in favour of the binding for the A2 production design. There is no significant user impact from the removal as there are no existing devicetrees in any of Linux, u-boot or Zephyr that make use of the A0 binding. Hardware connectivity between interrupt controllers is expressed using the aspeed,interrupt-ranges property. Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260407-irqchip-v5-1-c0b0a300a057@aspeedtech.com
2026-04-30soc: xilinx: Shutdown and free rx mailbox channelPrasanna Kumar T S M
A mbox rx channel is requested using mbox_request_channel_byname() in probe. In remove callback, the rx mailbox channel is cleaned up when the rx_chan is NULL due to incorrect condition check. The mailbox channel is not shutdown and it can receive messages even after the device removal. This leads to use after free. Also the channel resources are not freed. Fix this by checking the rx_chan correctly. Fixes: ffdbae28d9d1a ("drivers: soc: xilinx: Use mailbox IPI callback") Signed-off-by: Prasanna Kumar T S M <ptsm@linux.microsoft.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20260320060445.1541017-1-ptsm@linux.microsoft.com
2026-04-30soc: xilinx: Fix race condition in event registrationPrasanna Kumar T S M
The zynqmp_power driver registers handlers for suspend and subsystem restart events using register_event(). However, the work structures (zynqmp_pm_init_suspend_work and zynqmp_pm_init_restart_work) used by these handlers were allocated and initialized after the registration call. This created a race window where, if the firmware triggered an event immediately after registration but before allocation, the callback (suspend_event_callback or subsystem_restart_event_callback) would dereference a NULL pointer in work_pending(), leading to a crash. Fix this by allocating and initializing the work structures before registering the events. Fixes: fcf544ac6439 ("soc: xilinx: Add cb event for subsystem restart") Signed-off-by: Prasanna Kumar T S M <ptsm@linux.microsoft.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20260320060306.1540928-1-ptsm@linux.microsoft.com
2026-04-30i3c: dw-i3c-master: Fix IBI count register selection for versalnetShubhrajyoti Datta
On DesignWare I3C controllers where IC_HAS_IBI_DATA=0 (such as versalnet), the IBI_STS_CNT field (bits [28:24] of QUEUE_STATUS_LEVEL) is hardwired to 0. The IBI status entry count is instead reported via IBI_BUF_BLR (bits [23:16] of the same register). irq_handle_ibis() was unconditionally reading IBI_STS_CNT, causing it to always see 0 pending IBIs on versalnet and return early without draining the IBI buffer. Since INTR_IBI_THLD_STAT is level-triggered against the buffer fill level, this left the interrupt permanently asserted. Detect IBI data capability at probe time by writing the IBI data threshold field in QUEUE_THLD_CTRL and reading it back. Use the result to select the correct register field in irq_handle_ibis(). Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com> Link: https://patch.msgid.link/20260401084430.436059-1-shubhrajyoti.datta@amd.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-04-30drm/xe: Use drmm_mutex_init for VRAM manager lockTejas Upadhyay
Replace mutex_init()/mutex_destroy() with drmm_mutex_init() for the VRAM manager lock. This leverages DRM managed infrastructure to automatically destroy the mutex during device teardown, eliminating manual mutex_destroy() calls in both the normal fini path and the gpu_buddy_init() error path. Assisted-by: Claude:claude-opus-4.6 Reviewed-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://patch.msgid.link/20260429093138.3899280-2-tejas.upadhyay@intel.com Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-04-30i3c: master: Replace sprintf() with sysfs_emit() familyMaxwell Doose
Replace sprintf() function calls with sysfs_emit() and sysfs_emit_at() function calls where appropriate. This will help harden the driver and help modernize it. While at it, add missing newlines at the end of some sysfs_emit() (formerly sprintf()) calls. Signed-off-by: Maxwell Doose <m32285159@gmail.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260421214837.20939-1-m32285159@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-04-30i3c: master: svc: Prevent IRQ storm from false SLVSTART on NPCM845Stanley Chu
On NPCM845, when a target on the I3C bus gets stuck holding SDA low, the controller reports a false Master Request (MR) in-band interrupt event. The driver handles this by emitting a STOP condition to restore the bus. However, the hardware quirk SVC_I3C_QUIRK_FALSE_SLVSTART indicates that emitting a STOP condition may spuriously set the SLVSTART interrupt status bit. In the Master Request case, this creates a feedback loop: the STOP triggers a new SLVSTART event, the IRQ handler fires again, the controller still reports an MR type, another STOP is emitted, and the cycle repeats indefinitely, resulting in an IRQ storm that can lock up the CPU. Clear the SLVSTART status bit explicitly after emitting the STOP in the Master Request IBI handler when the SVC_I3C_QUIRK_FALSE_SLVSTART quirk is set. This breaks the feedback loop without affecting normal SLVSTART processing, which is already guarded in the top-level IRQ handler by checking that MSTATUS is in SLVREQ state. Signed-off-by: Stanley Chu <yschu@nuvoton.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260413005040.1211107-3-yschu@nuvoton.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-04-30i3c: master: svc: Fix missed IBI after false SLVSTART on NPCM845Stanley Chu
The NPCM845 I3C controller may raise a false SLVSTART interrupt. The handler first latches MSTATUS and then clears SLVSTART. If a real IBI request arrives after the handler latches MSTATUS but before it clears the SLVSTART interrupt status, HW sets the SLVREQ state. However, the handler still relies on the stale MSTATUS snapshot, returns early, and misses the real IBI. No further interrupt is generated for this pending IBI. Re-read MSTATUS to obtain the latest state and avoid missing a real IBI due to this race condition. Fixes: 4dd12e944f07 ("i3c: master: svc: Fix npcm845 invalid slvstart event") Signed-off-by: Stanley Chu <yschu@nuvoton.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260413005040.1211107-2-yschu@nuvoton.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-04-30Merge branch 'intel-wired-lan-update-2026-04-27-ice-iavf'Paolo Abeni
Jacob Keller says: ==================== Intel Wired LAN Update 2026-04-27 (ice, iavf) Petr Oros from RedHat has accumulated a number of fixes for the Intel ice and iavf drivers, bundled together in this series. First, a series of 4 fixes to resolve issues with the iavf driver logic for handling VLAN filters. This includes keeping VLAN filters while the interface is brought down, waiting for confirmation on filter deletion before deleting filters from the driver tracking structures, and handling the VIRTCHNL_OP_ADD_VLAN for the old v1 VLAN_ADD command. A fix for a crash in ice_reset_all_vfs(), properly checking for errors when ice_vf_rebuild_vsi() fails. A fix for a possible infinite recursion in ice_cfg_tx_topo() that occurs when trying to apply invalid Tx topology configuration. A fix to initialize the SMA pins in the DPLL subsystem properly. A fix to change the SMA and U.FL pin state for paired pins, ensuring that all flows changing one pin will also update its shared pin appropriately. A preparatory patch to export __dpll_pin_change_ntf() so that drivers can notify pin changes while already holding the dpll_lock. A fix to ensure DPLL notifications are sent for the software-controlled pins which wrap the physical CGU input/output pins. A fix to add DPLL notifications for peer pins when changing the SMA or U.FL pins, ensuring DPLL subsystem is notified about the paired connected pins. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> ==================== Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-0-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30ice: add dpll peer notification for paired SMA and U.FL pinsPetr Oros
SMA and U.FL pins share physical signal paths in pairs (SMA1/U.FL1 and SMA2/U.FL2). When one pin's state changes via a PCA9575 GPIO write, the paired pin's state also changes, but no notification is sent for the peer pin. Userspace consumers monitoring the peer via dpll netlink subscribe never learn about the update. Add ice_dpll_sw_pin_notify_peer() which sends a change notification for the paired SW pin. Call it from ice_dpll_pin_sma_direction_set(), ice_dpll_sma_pin_state_set(), and ice_dpll_ufl_pin_state_set() after pf->dplls.lock is released. Use __dpll_pin_change_ntf() because dpll_lock is still held by the dpll netlink layer (dpll_pin_pre_doit). Fixes: 2dd5d03c77e2 ("ice: redesign dpll sma/u.fl pins control") Signed-off-by: Petr Oros <poros@redhat.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-11-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30ice: fix missing dpll notifications for SW pinsPetr Oros
The SMA/U.FL pin redesign (commit 2dd5d03c77e2 ("ice: redesign dpll sma/u.fl pins control")) introduced software-controlled pins that wrap backing CGU input/output pins, but never updated the notification and data paths to propagate pin events to these SW wrappers. The periodic work sends dpll_pin_change_ntf() only for direct CGU input pins. SW pins that wrap these inputs never receive change or phase offset notifications, so userspace consumers such as synce4l monitoring SMA pins via dpll netlink never learn about state transitions or phase offset updates. Similarly, ice_dpll_phase_offset_get() reads the SW pin's own phase_offset field which is never updated; the PPS monitor writes to the backing CGU input's field instead. Fix by introducing ice_dpll_pin_ntf(), a wrapper around dpll_pin_change_ntf() that also notifies any registered SMA/U.FL pin whose backing CGU input matches. Replace all direct dpll_pin_change_ntf() calls in the periodic notification paths with this wrapper. Fix ice_dpll_phase_offset_get() to return the backing CGU input's phase_offset for input-direction SW pins. Fixes: 2dd5d03c77e2 ("ice: redesign dpll sma/u.fl pins control") Signed-off-by: Petr Oros <poros@redhat.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-10-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30dpll: export __dpll_pin_change_ntf() for use under dpll_lockIvan Vecera
Export __dpll_pin_change_ntf() so that drivers can send pin change notifications from within pin callbacks, which are already called under dpll_lock. Using dpll_pin_change_ntf() in that context would deadlock. Add lockdep_assert_held() to catch misuse without the lock held. Acked-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: Petr Oros <poros@redhat.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-9-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30ice: fix SMA and U.FL pin state changes affecting paired pinPetr Oros
SMA and U.FL pins share physical signal paths in pairs (SMA1/U.FL1 and SMA2/U.FL2) controlled by the PCA9575 GPIO expander. Each pair can only have one active pin at a time: SMA1 output and U.FL1 output share the same CGU output, SMA2 input and U.FL2 input share the same CGU input. The PCA9575 register bits determine which connector in each pair owns the signal path. The driver does not account for this pairing in two places: ice_dpll_ufl_pin_state_set() modifies PCA9575 bits and disables the backing CGU pin without checking whether the U.FL pin is currently active. Disconnecting an already inactive U.FL pin flips bits that the paired SMA pin relies on, breaking its connection. ice_dpll_sma_direction_set() does not propagate direction changes to the paired U.FL pin. For SMA2/U.FL2 the ICE_SMA2_UFL2_RX_DIS bit is never managed, so U.FL2 stays disconnected after SMA2 switches to output. For both pairs the backing CGU pin of the U.FL side is never enabled when a direction change activates it, so userspace sees the pin as disconnected even though the routing is correct. Fix by guarding the U.FL disconnect path against inactive pins and by updating the paired U.FL pin fully on SMA direction changes: manage ICE_SMA2_UFL2_RX_DIS for the SMA2/U.FL2 pair and enable the backing CGU pin whenever the peer becomes active. Fixes: 2dd5d03c77e2 ("ice: redesign dpll sma/u.fl pins control") Signed-off-by: Petr Oros <poros@redhat.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-8-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30ice: fix missing SMA pin initialization in DPLL subsystemPetr Oros
The DPLL SMA/U.FL pin redesign introduced ice_dpll_sw_pin_frequency_get() which gates frequency reporting on the pin's active flag. This flag is determined by ice_dpll_sw_pins_update() from the PCA9575 GPIO expander state. Before the redesign, SMA pins were exposed as direct HW input/output pins and ice_dpll_frequency_get() returned the CGU frequency unconditionally — the PCA9575 state was never consulted. The PCA9575 powers on with all outputs high, setting ICE_SMA1_DIR_EN, ICE_SMA1_TX_EN, ICE_SMA2_DIR_EN and ICE_SMA2_TX_EN. Nothing in the driver writes the register during initialization, so ice_dpll_sw_pins_update() sees all pins as inactive and ice_dpll_sw_pin_frequency_get() permanently returns 0 Hz for every SW pin. Fix this by writing a default SMA configuration in ice_dpll_init_info_sw_pins(): clear all SMA bits, then set SMA1 and SMA2 as active inputs (DIR_EN=0) with U.FL1 output and U.FL2 input disabled. Each SMA/U.FL pair shares a physical signal path so only one pin per pair can be active at a time. U.FL pins still report frequency 0 after this fix: U.FL1 (output-only) is disabled by ICE_SMA1_TX_EN which keeps the TX output buffer off, and U.FL2 (input-only) is disabled by ICE_SMA2_UFL2_RX_DIS. They can be activated by changing the corresponding SMA pin direction via dpll netlink. Fixes: 2dd5d03c77e2 ("ice: redesign dpll sma/u.fl pins control") Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-7-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30ice: fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hwPetr Oros
On certain E810 configurations where firmware supports Tx scheduler topology switching (tx_sched_topo_comp_mode_en), ice_cfg_tx_topo() may need to apply a new 5-layer or 9-layer topology from the DDP package. If the AQ command to set the topology fails (e.g. due to invalid DDP data or firmware limitations), the global configuration lock must still be cleared via a CORER reset. Commit 86aae43f21cf ("ice: don't leave device non-functional if Tx scheduler config fails") correctly fixed this by refactoring ice_cfg_tx_topo() to always trigger CORER after acquiring the global lock and re-initialize hardware via ice_init_hw() afterwards. However, commit 8a37f9e2ff40 ("ice: move ice_deinit_dev() to the end of deinit paths") later moved ice_init_dev_hw() into ice_init_hw(), breaking the reinit path introduced by 86aae43f21cf. This creates an infinite recursive call chain: ice_init_hw() ice_init_dev_hw() ice_cfg_tx_topo() # topology change needed ice_deinit_hw() ice_init_hw() # reinit after CORER ice_init_dev_hw() # recurse ice_cfg_tx_topo() ... # stack overflow Fix by moving ice_init_dev_hw() back out of ice_init_hw() and calling it explicitly from ice_probe() and ice_devlink_reinit_up(). The third caller, ice_cfg_tx_topo(), intentionally does not need ice_init_dev_hw() during its reinit, it only needs the core HW reinitialization. This breaks the recursion cleanly without adding flags or guards. The deinit ordering changes from commit 8a37f9e2ff40 ("ice: move ice_deinit_dev() to the end of deinit paths") which fixed slow rmmod are preserved, only the init-side placement of ice_init_dev_hw() is reverted. Fixes: 8a37f9e2ff40 ("ice: move ice_deinit_dev() to the end of deinit paths") Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Tested-by: Alexander Nowlin <alexander.nowlin@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-6-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30ice: fix NULL pointer dereference in ice_reset_all_vfs()Petr Oros
ice_reset_all_vfs() ignores the return value of ice_vf_rebuild_vsi(). When the VSI rebuild fails (e.g. during NVM firmware update via nvmupdate64e), ice_vsi_rebuild() tears down the VSI on its error path, leaving txq_map and rxq_map as NULL. The subsequent unconditional call to ice_vf_post_vsi_rebuild() leads to a NULL pointer dereference in ice_ena_vf_q_mappings() when it accesses vsi->txq_map[0]. The single-VF reset path in ice_reset_vf() already handles this correctly by checking the return value of ice_vf_reconfig_vsi() and skipping ice_vf_post_vsi_rebuild() on failure. Apply the same pattern to ice_reset_all_vfs(): check the return value of ice_vf_rebuild_vsi() and skip ice_vf_post_vsi_rebuild() and ice_eswitch_attach_vf() on failure. The VF is left safely disabled (ICE_VF_STATE_INIT not set, VFGEN_RSTAT not set to VFACTIVE) and can be recovered via a VFLR triggered by a PCI reset of the VF (sysfs reset or driver rebind). Note that this patch does not prevent the VF VSI rebuild from failing during NVM update — the underlying cause is firmware being in a transitional state while the EMP reset is processed, which can cause Admin Queue commands (ice_add_vsi, ice_cfg_vsi_lan) to fail. This patch only prevents the subsequent NULL pointer dereference that crashes the kernel when the rebuild does fail. crash> bt PID: 50795 TASK: ff34c9ee708dc680 CPU: 1 COMMAND: "kworker/u512:5" #0 [ff72159bcfe5bb50] machine_kexec at ffffffffaa8850ee #1 [ff72159bcfe5bba8] __crash_kexec at ffffffffaaa15fba #2 [ff72159bcfe5bc68] crash_kexec at ffffffffaaa16540 #3 [ff72159bcfe5bc70] oops_end at ffffffffaa837eda #4 [ff72159bcfe5bc90] page_fault_oops at ffffffffaa893997 #5 [ff72159bcfe5bce8] exc_page_fault at ffffffffab528595 #6 [ff72159bcfe5bd10] asm_exc_page_fault at ffffffffab600bb2 [exception RIP: ice_ena_vf_q_mappings+0x79] RIP: ffffffffc0a85b29 RSP: ff72159bcfe5bdc8 RFLAGS: 00010206 RAX: 00000000000f0000 RBX: ff34c9efc9c00000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ff34c9efc9c00000 RBP: ff34c9efc27d4828 R8: 0000000000000093 R9: 0000000000000040 R10: ff34c9efc27d4828 R11: 0000000000000040 R12: 0000000000100000 R13: 0000000000000010 R14: R15: ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ff72159bcfe5bdf8] ice_sriov_post_vsi_rebuild at ffffffffc0a85e2e [ice] #8 [ff72159bcfe5be08] ice_reset_all_vfs at ffffffffc0a920b4 [ice] #9 [ff72159bcfe5be48] ice_service_task at ffffffffc0a31519 [ice] #10 [ff72159bcfe5be88] process_one_work at ffffffffaa93dca4 #11 [ff72159bcfe5bec8] worker_thread at ffffffffaa93e9de #12 [ff72159bcfe5bf18] kthread at ffffffffaa946663 #13 [ff72159bcfe5bf50] ret_from_fork at ffffffffaa8086b9 The panic occurs attempting to dereference the NULL pointer in RDX at ice_sriov.c:294, which loads vsi->txq_map (offset 0x4b8 in ice_vsi). The faulting VSI is an allocated slab object but not fully initialized after a failed ice_vsi_rebuild(): crash> struct ice_vsi 0xff34c9efc27d4828 netdev = 0x0, rx_rings = 0x0, tx_rings = 0x0, q_vectors = 0x0, txq_map = 0x0, rxq_map = 0x0, alloc_txq = 0x10, num_txq = 0x10, alloc_rxq = 0x10, num_rxq = 0x10, The nvmupdate64e process was performing NVM firmware update: crash> bt 0xff34c9edd1a30000 PID: 49858 TASK: ff34c9edd1a30000 CPU: 1 COMMAND: "nvmupdate64e" #0 [ff72159bcd617618] __schedule at ffffffffab5333f8 #4 [ff72159bcd617750] ice_sq_send_cmd at ffffffffc0a35347 [ice] #5 [ff72159bcd6177a8] ice_sq_send_cmd_retry at ffffffffc0a35b47 [ice] #6 [ff72159bcd617810] ice_aq_send_cmd at ffffffffc0a38018 [ice] #7 [ff72159bcd617848] ice_aq_read_nvm at ffffffffc0a40254 [ice] #8 [ff72159bcd6178b8] ice_read_flat_nvm at ffffffffc0a4034c [ice] #9 [ff72159bcd617918] ice_devlink_nvm_snapshot at ffffffffc0a6ffa5 [ice] dmesg: ice 0000:13:00.0: firmware recommends not updating fw.mgmt, as it may result in a downgrade. continuing anyways ice 0000:13:00.1: ice_init_nvm failed -5 ice 0000:13:00.1: Rebuild failed, unload and reload driver Fixes: 12bb018c538c ("ice: Refactor VF reset") Signed-off-by: Petr Oros <poros@redhat.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-5-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30iavf: add VIRTCHNL_OP_ADD_VLAN to success completion handlerPetr Oros
The V1 ADD_VLAN opcode had no success handler; filters sent via V1 stayed in ADDING state permanently. Add a fallthrough case so V1 filters also transition ADDING -> ACTIVE on PF confirmation. Critically, add an `if (v_retval) break` guard: the error switch in iavf_virtchnl_completion() does NOT return after handling errors, it falls through to the success switch. Without this guard, a PF-rejected ADD would incorrectly mark ADDING filters as ACTIVE, creating a driver/HW mismatch where the driver believes the filter is installed but the PF never accepted it. For V2, this is harmless: iavf_vlan_add_reject() in the error block already kfree'd all ADDING filters, so the success handler finds nothing to transition. Fixes: 968996c070ef ("iavf: Fix VLAN_V2 addition/rejection") Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-4-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30iavf: wait for PF confirmation before removing VLAN filtersPetr Oros
The VLAN filter DELETE path was asymmetric with the ADD path: ADD waits for PF confirmation (ADD -> ADDING -> ACTIVE), but DELETE immediately frees the filter struct after sending the DEL message without waiting for the PF response. This is problematic because: - If the PF rejects the DEL, the filter remains in HW but the driver has already freed the tracking structure, losing sync. - Race conditions between DEL pending and other operations (add, reset) cannot be properly resolved if the filter struct is already gone. Add IAVF_VLAN_REMOVING state to make the DELETE path symmetric: REMOVE -> REMOVING (send DEL) -> PF confirms -> kfree -> PF rejects -> ACTIVE In iavf_del_vlans(), transition filters from REMOVE to REMOVING instead of immediately freeing them. The new DEL completion handler in iavf_virtchnl_completion() frees filters on success or reverts them to ACTIVE on error. Update iavf_add_vlan() to handle the REMOVING state: if a DEL is pending and the user re-adds the same VLAN, queue it for ADD so it gets re-programmed after the PF processes the DEL. The !VLAN_FILTERING_ALLOWED early-exit path still frees filters directly since no PF message is sent in that case. Also update iavf_del_vlan() to skip filters already in REMOVING state: DEL has been sent to PF and the completion handler will free the filter when PF confirms. Without this guard, the sequence DEL(pending) -> user-del -> second DEL could cause the PF to return an error for the second DEL (filter already gone), causing the completion handler to incorrectly revert a deleted filter back to ACTIVE. Fixes: 968996c070ef ("iavf: Fix VLAN_V2 addition/rejection") Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-3-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30iavf: stop removing VLAN filters from PF on interface downPetr Oros
When a VF goes down, the driver currently sends DEL_VLAN to the PF for every VLAN filter (ACTIVE -> DISABLE -> send DEL -> INACTIVE), then re-adds them all on UP (INACTIVE -> ADD -> send ADD -> ADDING -> ACTIVE). This round-trip is unnecessary because: 1. The PF disables the VF's queues via VIRTCHNL_OP_DISABLE_QUEUES, which already prevents all RX/TX traffic regardless of VLAN filter state. 2. The VLAN filters remaining in PF HW while the VF is down is harmless - packets matching those filters have nowhere to go with queues disabled. 3. The DEL+ADD cycle during down/up creates race windows where the VLAN filter list is incomplete. With spoofcheck enabled, the PF enables TX VLAN filtering on the first non-zero VLAN add, blocking traffic for any VLANs not yet re-added. Remove the entire DISABLE/INACTIVE state machinery: - Remove IAVF_VLAN_DISABLE and IAVF_VLAN_INACTIVE enum values - Remove iavf_restore_filters() and its call from iavf_open() - Remove VLAN filter handling from iavf_clear_mac_vlan_filters(), rename it to iavf_clear_mac_filters() - Remove DEL_VLAN_FILTER scheduling from iavf_down() - Remove all DISABLE/INACTIVE handling from iavf_del_vlans() VLAN filters now stay ACTIVE across down/up cycles. Only explicit user removal (ndo_vlan_rx_kill_vid) or PF/VF reset triggers VLAN filter deletion/re-addition. Fixes: ed1f5b58ea01 ("i40evf: remove VLAN filters on close") Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-2-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30iavf: rename IAVF_VLAN_IS_NEW to IAVF_VLAN_ADDINGPetr Oros
Rename the IAVF_VLAN_IS_NEW state to IAVF_VLAN_ADDING to better describe what the state represents: an ADD request has been sent to the PF and is waiting for a response. This is a pure rename with no behavioral change, preparing for a cleanup of the VLAN filter state machine. Signed-off-by: Petr Oros <poros@redhat.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-1-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30tty: xtensa/iss: use strnlen to improve iss_console_writeThorsten Blum
Use strnlen() to limit scanning 's' to 'count' bytes. Use the length of 's' to decide if simc_write() should be called instead of dereferencing it first and then calling strlen(). With strnlen(), iss_console_write() is further hardened against callers where 's' is not NUL-terminated. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Message-ID: <20260430090253.237654-3-thorsten.blum@linux.dev> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2026-04-30drm: renesas: shmobile: remove now-redundant call to ↵Luca Ceresoli
drm_connector_attach_encoder() shmob_drm_connector_create() can init the connector in two ways, based on the 'if (sdev->pdata)': 1. manually in shmob_drm_connector_create(), or 2. delegating to drm_bridge_connector_init() Whichever branch is taken, drm_connector_attach_encoder() is called immediately after to attach the connector to the encoder. Now drm_bridge_connector_init() calls drm_connector_attach_encoder() on the connector so it is not needed anymore in case 2 and should be removed, but it is still needed in case 1. Move drm_connector_attach_encoder() from the common path to inside shmob_drm_connector_create() in order to get back to a single drm_connector_attach_encoder() in both cases. Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260423115550.444930-7-luca.ceresoli@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-30drm/rockchip: rgb: remove now-redundant call to drm_connector_attach_encoder()Luca Ceresoli
drm_connector_attach_encoder() is now called by drm_bridge_connector_init(). Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260423115550.444930-6-luca.ceresoli@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-30drm/imx: dc: remove now-redundant call to drm_connector_attach_encoder()Luca Ceresoli
drm_connector_attach_encoder() is now called by drm_bridge_connector_init(). Reviewed-by: Liu Ying <victor.liu@nxp.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260423115550.444930-5-luca.ceresoli@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-30drm: zynqmp_kms: remove now-redundant call to drm_connector_attach_encoder()Luca Ceresoli
drm_connector_attach_encoder() is now called by drm_bridge_connector_init(). Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260423115550.444930-4-luca.ceresoli@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-30drm/tilcdc: remove now-redundant call to drm_connector_attach_encoder()Luca Ceresoli
drm_connector_attach_encoder() is now called by drm_bridge_connector_init(). Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260423115550.444930-3-luca.ceresoli@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-04-30drm/tidss: remove now-redundant call to drm_connector_attach_encoder()Luca Ceresoli
drm_connector_attach_encoder() is now called by drm_bridge_connector_init(). Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20260423115550.444930-2-luca.ceresoli@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>