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2025-05-07KVM: arm64: Introduce CONFIG_UBSAN_KVM_EL2Mostafa Saleh
Add a new Kconfig CONFIG_UBSAN_KVM_EL2 for KVM which enables UBSAN for EL2 code (in protected/nvhe/hvhe) modes. This will re-use the same checks enabled for the kernel for the hypervisor. The only difference is that for EL2 it always emits a "brk" instead of implementing hooks as the hypervisor can't print reports. The KVM code will re-use the same code for the kernel "report_ubsan_failure()" so #ifdefs are changed to also have this code for CONFIG_UBSAN_KVM_EL2 Signed-off-by: Mostafa Saleh <smostafa@google.com> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://lore.kernel.org/r/20250430162713.1997569-4-smostafa@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-07ubsan: Remove regs from report_ubsan_failure()Mostafa Saleh
report_ubsan_failure() doesn't use argument regs, and soon it will be called from the hypervisor context were regs are not available. So, remove the unused argument. Signed-off-by: Mostafa Saleh <smostafa@google.com> Acked-by: Kees Cook <kees@kernel.org> Link: https://lore.kernel.org/r/20250430162713.1997569-3-smostafa@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-07genirq: Remove unused remove_percpu_irq()Dr. David Alan Gilbert
remove_percpu_irq() has been unused since it was added in 2011 by commit 31d9d9b6d830 ("genirq: Add support for per-cpu dev_id interrupts") Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250420164656.112641-1-linux@treblig.org
2025-05-07bus: firewall: Fix missing static inline annotations for stubsKrzysztof Kozlowski
Stubs in the header file for !CONFIG_STM32_FIREWALL case should be both static and inline, because they do not come with earlier declaration and should be inlined in every unit including the header. Cc: Patrice Chotard <patrice.chotard@foss.st.com> Cc: stable@vger.kernel.org Fixes: 5c9668cfc6d7 ("firewall: introduce stm32_firewall framework") Link: https://lore.kernel.org/r/20250507092121.95121-2-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2025-05-07genirq/manage: Rework can_request_irq()Thomas Gleixner
Use the new guards to get and lock the interrupt descriptor and tidy up the code. Make the return value boolean to reflect it's meaning. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/all/20250429065422.187250840@linutronix.de
2025-05-07Add support for CS35L63 Smart AmplifierMark Brown
Merge series from Stefan Binding <sbinding@opensource.cirrus.com>: CS35L63 is a Mono Class-D PC Smart Amplifier, with Speaker Protection and Audio Enhancement Algorithms. CS35L63 uses a similar control interface to CS35L56 so support for it can be added into the CS35L56 driver. CS35L63 only has SoundWire and I2C control interfaces.
2025-05-07ASoC: SOF: add disable_function_topology flag andMark Brown
Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>: SOF will load the function topologies by default. However, user may want to use the monolithic topology. Add a flag amd a module parameter to allow user specify the topology or not using function topologies.
2025-05-07Minor bug fix and tidy up for sof_sdwMark Brown
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>: Fix a small bug that can cause the sof_sdw machine driver to fail probe after the first time it has probed. Also do some minor tidy up on the handling of the platform_component of the dai links.
2025-05-07ASoC: codec: cs42l[56,73,52]: Convert to GPIOMark Brown
Merge series from "Peng Fan (OSS)" <peng.fan@oss.nxp.com>: This patchset is separate from [1], and not merging changes in one patch. So separate changes into three patches for each chip. - sort headers - Drop legacy platform support - Convert to GPIO descriptors of_gpio.h is deprecated, update the driver to use GPIO descriptors. - Use devm_gpiod_get_optional to get GPIO descriptor with default polarity GPIOD_OUT_LOW, set consumer name. - Use gpiod_set_value_cansleep to configure output value. I not have platforms to test, just do the patches with my best efforts, and make build pass. [1] https://lore.kernel.org/all/20250408-asoc-gpio-v1-0-c0db9d3fd6e9@nxp.com/
2025-05-06Merge tag 'wireless-2025-05-06' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Johannes Berg says: ==================== Couple of fixes: * iwlwifi: add two missing device entries * cfg80211: fix a potential out-of-bounds access * mac80211: fix format of TID to link mapping action frames * tag 'wireless-2025-05-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: iwlwifi: add support for Killer on MTL wifi: mac80211: fix the type of status_code for negotiated TID to Link Mapping wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation ==================== Link: https://patch.msgid.link/20250506203506.158818-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-06Merge tag 'wireless-next-2025-05-06' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== wireless features, notably * stack - free SKBTX_WIFI_STATUS flag - fixes for VLAN multicast in multi-link - improve codel parameters (revert some old twiddling) * ath12k - Enable AHB support for IPQ5332. - Add monitor interface support to QCN9274. - Add MLO support to WCN7850. - Add 802.11d scan offload support to WCN7850. * ath11k - Restore hibernation support * iwlwifi - EMLSR on two 5 GHz links * mwifiex - cleanups/refactoring along with many other small features/cleanups * tag 'wireless-next-2025-05-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (177 commits) Revert "wifi: iwlwifi: clean up config macro" wifi: iwlwifi: move phy_filters to fw_runtime wifi: iwlwifi: pcie: make sure to lock rxq->read wifi: iwlwifi: add definitions for iwl_mac_power_cmd version 2 wifi: iwlwifi: clean up config macro wifi: iwlwifi: mld: simplify iwl_mld_rx_fill_status() wifi: iwlwifi: mld: rx: simplify channel handling wifi: iwlwifi: clean up band in RX metadata wifi: iwlwifi: mld: skip unknown FW channel load values wifi: iwlwifi: define API for external FSEQ images wifi: iwlwifi: mld: allow EMLSR on separated 5 GHz subbands wifi: iwlwifi: mld: use cfg80211_chandef_get_width() wifi: iwlwifi: mld: fix iwl_mld_emlsr_disallowed_with_link() return wifi: iwlwifi: mld: clarify variable type wifi: iwlwifi: pcie: add support for the reset handshake in MSI wifi: mac80211_hwsim: Prevent tsf from setting if beacon is disabled wifi: mac80211: restructure tx profile retrieval for MLO MBSSID wifi: nl80211: add link id of transmitted profile for MLO MBSSID wifi: ieee80211: Add helpers to fetch EMLSR delay and timeout values wifi: mac80211: update ML STA with EML capabilities ... ==================== Link: https://patch.msgid.link/20250506174656.119970-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-06net: add missing instance lock to dev_set_promiscuityStanislav Fomichev
Accidentally spotted while trying to understand what else needs to be renamed to netif_ prefix. Most of the calls to dev_set_promiscuity are adjacent to dev_set_allmulti or dev_disable_lro so it should be safe to add the lock. Note that new netif_set_promiscuity is currently unused, the locked paths call __dev_set_promiscuity directly. Fixes: ad7c7b2172c3 ("net: hold netdev instance lock during sysfs operations") Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250506011919.2882313-1-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-06devlink: avoid param type value translationsJiri Pirko
Assign DEVLINK_PARAM_TYPE_* enum values to DEVLINK_VAR_ATTR_TYPE_* to ensure the same values are used internally and in UAPI. Benefit from that by removing the value translations. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://patch.msgid.link/20250505114513.53370-4-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-06devlink: define enum for attr types of dynamic attributesJiri Pirko
Devlink param and health reporter fmsg use attributes with dynamic type which is determined according to a different type. Currently used values are NLA_*. The problem is, they are not part of UAPI. They may change which would cause a break. To make this future safe, introduce a enum that shadows NLA_* values in it and is part of UAPI. Also, this allows to possibly carry types that are unrelated to NLA_* values. Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://patch.msgid.link/20250505114513.53370-3-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-07This patch set did some clean up and add runtime pmMark Brown
Merge series from Haibo Chen <haibo.chen@nxp.com>: PATCH1/3/4 to clean up the code, make the code more readable PATCH2 add the runtime pm support PATCH5 use devm_add_action_or_reset() to replace remove() callback, this can avoid oops when do bind/unbind test
2025-05-07dt-bindings: clock: sophgo: add clock controller for SG2044Inochi Amaoto
The clock controller on the SG2044 provides common clock function for all IPs on the SoC. This device requires PLL clock to function normally. Add definition for the clock controller of the SG2044 SoC. Reviewed-by: Chen Wang <unicorn_wang@outlook.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250418020325.421257-4-inochiama@gmail.com Signed-off-by: Inochi Amaoto <inochiama@gmail.com> Signed-off-by: Chen Wang <unicorn_wang@outlook.com> Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>
2025-05-07dt-bindings: soc: sophgo: Add SG2044 top syscon deviceInochi Amaoto
The SG2044 top syscon device provide PLL clock control and some other misc feature of the SoC. Add the compatible string for SG2044 top syscon device. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250418020325.421257-2-inochiama@gmail.com Signed-off-by: Inochi Amaoto <inochiama@gmail.com> Signed-off-by: Chen Wang <unicorn_wang@outlook.com> Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>
2025-05-06clk: test: Forward-declare struct of_phandle_args in kunit/clk.hRichard Fitzgerald
Add a forward-declare of struct of_phandle_args to prevent the compiler warning: ../include/kunit/clk.h:29:63: warning: ‘struct of_phandle_args’ declared inside parameter list will not be visible outside of this definition or declaration struct clk_hw *(*get)(struct of_phandle_args *clkspec, void *data), Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20250327125214.82598-1-rf@opensource.cirrus.com Fixes: a82fcb16d977 ("clk: test: Add test managed of_clk_add_hw_provider()") Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2025-05-06wifi: mac80211: fix the type of status_code for negotiated TID to Link MappingMichael-CY Lee
The status code should be type of __le16. Fixes: 83e897a961b8 ("wifi: ieee80211: add definitions for negotiated TID to Link map") Fixes: 8f500fbc6c65 ("wifi: mac80211: process and save negotiated TID to Link mapping request") Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com> Link: https://patch.msgid.link/20250505081946.3927214-1-michael-cy.lee@mediatek.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-06Merge tag 'v6.15-rc5' into x86/msr, to pick up fixes and to resolve conflictsIngo Molnar
Conflicts: drivers/cpufreq/intel_pstate.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-05-06rpmsg: core: Remove deadcodeDr. David Alan Gilbert
rpmsg_send_offchannel() and rpmsg_trysend_offchannel() have been unused since they were added in 2011's commit bcabbccabffe ("rpmsg: add virtio-based remote processor messaging bus") Remove them and associated docs. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> Link: https://lore.kernel.org/r/20250429234600.301083-2-linux@treblig.org Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2025-05-06kill vfs_submount()Al Viro
The last remaining user of vfs_submount() (tracefs) is easy to convert to fs_context_for_submount(); do that and bury that thing, along with SB_SUBMOUNT Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-05-06io_uring/zcrx: dmabuf backed zerocopy receivePavel Begunkov
Add support for dmabuf backed zcrx areas. To use it, the user should pass IORING_ZCRX_AREA_DMABUF in the struct io_uring_zcrx_area_reg flags field and pass a dmabuf fd in the dmabuf_fd field. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/20bb1890e60a82ec945ab36370d1fd54be414ab6.1746097431.git.asml.silence@gmail.com Link: https://lore.kernel.org/io-uring/6e37db97303212bbd8955f9501cf99b579f8aece.1746547722.git.asml.silence@gmail.com [axboe: fold in fixup] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06f2fs: fix to bail out in get_new_segment()Chao Yu
------------[ cut here ]------------ WARNING: CPU: 3 PID: 579 at fs/f2fs/segment.c:2832 new_curseg+0x5e8/0x6dc pc : new_curseg+0x5e8/0x6dc Call trace: new_curseg+0x5e8/0x6dc f2fs_allocate_data_block+0xa54/0xe28 do_write_page+0x6c/0x194 f2fs_do_write_node_page+0x38/0x78 __write_node_page+0x248/0x6d4 f2fs_sync_node_pages+0x524/0x72c f2fs_write_checkpoint+0x4bc/0x9b0 __checkpoint_and_complete_reqs+0x80/0x244 issue_checkpoint_thread+0x8c/0xec kthread+0x114/0x1bc ret_from_fork+0x10/0x20 get_new_segment() detects inconsistent status in between free_segmap and free_secmap, let's record such error into super block, and bail out get_new_segment() instead of continue using the segment. Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2025-05-06Merge tag 'for-6.15-rc5-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: - revert device path canonicalization, this does not work as intended with namespaces and is not reliable in all setups - fix crash in scrub when checksum tree is not valid, e.g. when mounted with rescue=ignoredatacsums - fix crash when tracepoint btrfs_prelim_ref_insert is enabled - other minor fixups: - open code folio_index(), meant to be used in MM code - use matching type for sizeof in compression allocation * tag 'for-6.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: open code folio_index() in btree_clear_folio_dirty_tag() Revert "btrfs: canonicalize the device path before adding it" btrfs: avoid NULL pointer dereference if no valid csum tree btrfs: handle empty eb->folios in num_extent_folios() btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref btrfs: compression: adjust cb->compressed_folios allocation type
2025-05-06ASoC: codec: cs42l52: Drop cs42l52.hPeng Fan
There is no in-tree user of "include/sound/cs42l52.h", so move 'struct cs42l52_platform_data ' to cs42l52.c and remove the header file. And platform data is mostly for legacy platforms that create devices non using device tree. So drop cs42l52.h to prepare using GPIOD API. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://patch.msgid.link/20250506-csl42x-v3-8-e9496db544c4@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06ASoC: codec: cs42l73: Drop cs42l73.hPeng Fan
There is no in-tree user of "include/sound/cs42l56.h", so move 'struct cs42l73_platform_data ' to cs42l73.c and remove the header file. And platform data is mostly for legacy platforms that create devices non using device tree. So drop cs42l73.h to prepare using GPIOD API. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://patch.msgid.link/20250506-csl42x-v3-5-e9496db544c4@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06ASoC: codec: cs42l56: Drop cs42l56.hPeng Fan
There is no in-tree user of "include/sound/cs42l56.h", so move 'struct cs42l56_platform_data' to cs42l56.c and remove the header file. And platform data is mostly for platforms that create devices non using device tree. CS42L56 is a discontinued product, there is less possibility that new users will use legacy method to create devices. So drop cs42l56.h to prepare using GPIOD API. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://patch.msgid.link/20250506-csl42x-v3-2-e9496db544c4@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06ASoC: SOF: add disable_function_topology flagBard Liao
SOF driver will load required function topologies dynamically. However, we prefer using the monolithic topology. Add a flag to allow user not using the function topologies. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://patch.msgid.link/20250506113311.45487-2-yung-chuan.liao@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06nvme: add FDP definitionsChristoph Hellwig
Add the config feature result, config log page, and management receive commands needed for FDP. Partially based on a patch from Kanchan Joshi <joshi.k@samsung.com>. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20250506121732.8211-10-joshi.k@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06io_uring: enable per-io write streamsKeith Busch
Allow userspace to pass a per-I/O write stream in the SQE: __u8 write_stream; The __u8 type matches the size the filesystems and block layer support. Application can query the supported values from the block devices max_write_streams sysfs attribute. Unsupported values are ignored by file operations that do not support write streams or rejected with an error by those that support them. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20250506121732.8211-7-joshi.k@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: introduce a write_stream_granularity queue limitChristoph Hellwig
Export the granularity that write streams should be discarded with, as it is essential for making good use of them. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20250506121732.8211-5-joshi.k@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: introduce max_write_streams queue limitKeith Busch
Drivers with hardware that support write streams need a way to export how many are available so applications can generically query this. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com> Signed-off-by: Keith Busch <kbusch@kernel.org> [hch: renamed hints to streams, removed stacking] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20250506121732.8211-4-joshi.k@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: add a bi_write_stream fieldChristoph Hellwig
Add the ability to pass a write stream for placement control in the bio. The new field fits in an existing hole, so does not change the size of the struct. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20250506121732.8211-3-joshi.k@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06fs: add a write stream field to the kiocbChristoph Hellwig
Prepare for io_uring passthrough of write streams. The write stream field in the kiocb structure fits into an existing 2-byte hole, so its size is not changed. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20250506121732.8211-2-joshi.k@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: move wbt_enable_default() out of queue freezing from sched ->exit()Ming Lei
scheduler's ->exit() is called with queue frozen and elevator lock is held, and wbt_enable_default() can't be called with queue frozen, otherwise the following lockdep warning is triggered: #6 (&q->rq_qos_mutex){+.+.}-{4:4}: #5 (&eq->sysfs_lock){+.+.}-{4:4}: #4 (&q->elevator_lock){+.+.}-{4:4}: #3 (&q->q_usage_counter(io)#3){++++}-{0:0}: #2 (fs_reclaim){+.+.}-{0:0}: #1 (&sb->s_type->i_mutex_key#3){+.+.}-{4:4}: #0 (&q->debugfs_mutex){+.+.}-{4:4}: Fix the issue by moving wbt_enable_default() out of bfq's exit(), and call it from elevator_change_done(). Meantime add disk->rqos_state_mutex for covering wbt state change, which matches the purpose more than ->elevator_lock. Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20250505141805.2751237-26-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: add new helper for disabling elevator switch when deleting diskMing Lei
Add new helper disable_elv_switch() and new flag QUEUE_FLAG_NO_ELV_SWITCH for disabling elevator switch before deleting disk: - originally flag QUEUE_FLAG_REGISTERED is added for preventing elevator switch during removing disk, but this flag has been used widely for other purposes, so add one new flag for disabling elevator switch only - for avoiding deadlock risk, we have to move elevator queue register/unregister out of elevator lock and queue freeze, which will be done in next patch. However, this way adds small race window between elevator switch and deleting ->queue_kobj, in which elevator queue register/unregister could be run concurrently. The added helper will be used for avoiding the race in the following patch. - drain in-progress elevator switch before deleting disk Suggested-by: Nilay Shroff <nilay@linux.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Nilay Shroff <nilay@linux.ibm.com> Link: https://lore.kernel.org/r/20250505141805.2751237-21-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: prevent adding/deleting disk during updating nr_hw_queuesMing Lei
Both adding/deleting disk code are reader of `nr_hw_queues`, so we can't allow them in-progress when updating nr_hw_queues, kernel panic and kasan has been reported in [1]. Prevent adding/deleting disk during updating nr_hw_queues by adding rw_semaphore to tagset, write lock is grabbed in blk_mq_update_nr_hw_queues(), and read lock is acquired when adding/deleting disk. Also mark GFP_NOIO allocation scope for adding/deleting disk because blk_mq_update_nr_hw_queues() is part of some driver's error handler. This way avoids lot of trouble. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Nilay Shroff <nilay@linux.ibm.com> Suggested-by: Nilay Shroff <nilay@linux.ibm.com> Reported-by: Nilay Shroff <nilay@linux.ibm.com> Closes: https://lore.kernel.org/linux-block/a5896cdb-a59a-4a37-9f99-20522f5d2987@linux.ibm.com/ Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250505141805.2751237-9-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06block: move ELEVATOR_FLAG_DISABLE_WBT a request queue flagMing Lei
ELEVATOR_FLAG_DISABLE_WBT is only used by BFQ to disallow wbt when BFQ is in use. The flag is set in BFQ's init(), and cleared in BFQ's exit(). Making it as request queue flag, so that we can avoid to deal with elevator switch race. Also it isn't graceful to checking one scheduler flag in wbt_enable_default(). Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Nilay Shroff <nilay@linux.ibm.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250505141805.2751237-3-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-06media: common: Add v4l2_find_nearest_size_conditional()Sakari Ailus
v4l2_find_nearest_size() returns a mode from sensor driver's mode list that is a best match width and height wise for the sensor. Some drivers have different set of available modes depending on the number of lanes. While this could be handled within a driver by providing different lists of modes, provide a helper v4l2_find_nearest_size_conditional() to ignore modes that aren't available. Also use size_t for the array index and remove extra commas while at it. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-05-06drm/ttm: Remove the struct ttm_backup abstractionThomas Hellström
The abstraction was previously added to support separate ttm_backup implementations. However with the current implementation casting from a struct file to a struct ttm_backup, we run into trouble since struct file may have randomized the layout and gcc complains. Remove the struct ttm_backup abstraction Cc: dri-devel@lists.freedesktop.org Cc: Matthew Brost <matthew.brost@intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Christian König <christian.koenig@amd.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Reported-by: Kees Cook <kees@kernel.org> Closes: https://lore.kernel.org/dri-devel/9c8dbbafdaf9f3f089da2cde5a772d69579b3795.camel@linux.intel.com/T/#mb153ab9216cb813b92bdeb36f391ad4808c2ba29 Suggested-by: Christian König <christian.koenig@amd.com> Fixes: 70d645deac98 ("drm/ttm: Add helpers for shrinking") Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://lore.kernel.org/r/20250502130014.3156-1-thomas.hellstrom@linux.intel.com
2025-05-06drm/ttm: Fix ttm_backup kerneldocThomas Hellström
The docs were not properly updated from an earlier version of the code. Fixes: e7b5d23e5d47 ("drm/ttm: Provide a shmem backup implementation") Cc: Christian König <christian.koenig@amd.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://lore.kernel.org/r/20250502130101.3185-1-thomas.hellstrom@linux.intel.com
2025-05-06BackMerge tag 'v6.15-rc5' into drm-nextDave Airlie
Linux 6.15-rc5, requested by tzimmerman for fixes required in drm-next. Signed-off-by: Dave Airlie <airlied@redhat.com>
2025-05-06dma-mapping: add a dma_need_unmap helperChristoph Hellwig
Add helper that allows a driver to skip calling dma_unmap_* if the DMA layer can guarantee that they are no-nops. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2025-05-06dma-mapping: Implement link/unlink ranges APILeon Romanovsky
Introduce new DMA APIs to perform DMA linkage of buffers in layers higher than DMA. In proposed API, the callers will perform the following steps. In map path: if (dma_can_use_iova(...)) dma_iova_alloc() for (page in range) dma_iova_link_next(...) dma_iova_sync(...) else /* Fallback to legacy map pages */ for (all pages) dma_map_page(...) In unmap path: if (dma_can_use_iova(...)) dma_iova_destroy() else for (all pages) dma_unmap_page(...) Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2025-05-06dma-mapping: Provide an interface to allow allocate IOVALeon Romanovsky
The existing .map_pages() callback provides both allocating of IOVA and linking DMA pages. That combination works great for most of the callers who use it in control paths, but is less effective in fast paths where there may be multiple calls to map_page(). These advanced callers already manage their data in some sort of database and can perform IOVA allocation in advance, leaving range linkage operation to be in fast path. Provide an interface to allocate/deallocate IOVA and next patch link/unlink DMA ranges to that specific IOVA. In the new API a DMA mapping transaction is identified by a struct dma_iova_state, which holds some recomputed information for the transaction which does not change for each page being mapped, so add a check if IOVA can be used for the specific transaction. The API is exported from dma-iommu as it is the only implementation supported, the namespace is clearly different from iommu_* functions which are not allowed to be used. This code layout allows us to save function call per API call used in datapath as well as a lot of boilerplate code. Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2025-05-06iommu: generalize the batched sync after map interfaceChristoph Hellwig
For the upcoming IOVA-based DMA API we want to batch the ops->iotlb_sync_map() call after mapping multiple IOVAs from dma-iommu without having a scatterlist. Improve the API. Add a wrapper for the map_sync as iommu_sync_map() so that callers don't need to poke into the methods directly. Formalize __iommu_map() into iommu_map_nosync() which requires the caller to call iommu_sync_map() after all maps are completed. Refactor the existing sanity checks from all the different layers into iommu_map_nosync(). Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Will Deacon <will@kernel.org> Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2025-05-06dma-mapping: move the PCI P2PDMA mapping helpers to pci-p2pdma.hChristoph Hellwig
To support the upcoming non-scatterlist mapping helpers, we need to go back to have them called outside of the DMA API. Thus move them out of dma-map-ops.h, which is only for DMA API implementations to pci-p2pdma.h, which is for driver use. Note that the core helper is still not exported as the mapping is expected to be done only by very highlevel subsystem code at least for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2025-05-06PCI/P2PDMA: Refactor the p2pdma mapping helpersChristoph Hellwig
The current scheme with a single helper to determine the P2P status and map a scatterlist segment force users to always use the map_sg helper to DMA map, which we're trying to get away from because they are very cache inefficient. Refactor the code so that there is a single helper that checks the P2P state for a page, including the result that it is not a P2P page to simplify the callers, and a second one to perform the address translation for a bus mapped P2P transfer that does not depend on the scatterlist structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2025-05-05sctp: Remove unused sctp_assoc_del_peer and sctp_chunk_iifDr. David Alan Gilbert
sctp_assoc_del_peer() last use was removed in 2015 by commit 73e6742027f5 ("sctp: Do not try to search for the transport twice") which now uses rm_peer instead of del_peer. sctp_chunk_iif() last use was removed in 2016 by commit 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too") Remove them. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Acked-by: Xin Long <lucien.xin@gmail.com> Link: https://patch.msgid.link/20250501233815.99832-1-linux@treblig.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-07-31 04:42:05 +0000