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2025-01-17hv_netvsc: Replace one-element array with flexible array memberThorsten Blum
Replace the deprecated one-element array with a modern flexible array member in the struct nvsp_1_message_send_receive_buffer_complete. Use struct_size_t(,,1) instead of sizeof() to maintain the same size. Compile-tested only. Link: https://github.com/KSPP/linux/issues/79 Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Tested-by: Roman Kisel <romank@linux.microsoft.com> Reviewed-by: Roman Kisel <romank@linux.microsoft.com> Link: https://patch.msgid.link/20250116211932.139564-2-thorsten.blum@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-17gtp: Prepare ip4_route_output_gtp() to .flowi4_tos conversion.Guillaume Nault
Use inet_sk_dscp() to get the socket DSCP value as dscp_t, instead of ip_sock_rt_tos() which returns a __u8. This will ease the conversion of fl4->flowi4_tos to dscp_t, which now just becomes a matter of dropping the inet_dscp_to_dsfield() call. Signed-off-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/06bdb310a075355ff059cd32da2efc29a63981c9.1737034675.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-17dccp: Prepare dccp_v4_route_skb() to .flowi4_tos conversion.Guillaume Nault
Use inet_sk_dscp() to get the socket DSCP value as dscp_t, instead of ip_sock_rt_tos() which returns a __u8. This will ease the conversion of fl4->flowi4_tos to dscp_t, which now just becomes a matter of dropping the inet_dscp_to_dsfield() call. Signed-off-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/208dc5ca28bb5595d7a545de026bba18b1d63bda.1737032802.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-17net/mlxfw: Drop hard coded max FW flash image sizeMaher Sanalla
Currently, mlxfw kernel module limits FW flash image size to be 10MB at most, preventing the ability to burn recent BlueField-3 FW that exceeds the said size limit. Thus, drop the hard coded limit. Instead, rely on FW's max_component_size threshold that is reported in MCQI register as the size limit for FW image. Fixes: 410ed13cae39 ("Add the mlxfw module for Mellanox firmware flash process") Signed-off-by: Maher Sanalla <msanalla@nvidia.com> Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/1737030796-1441634-1-git-send-email-moshe@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-17net: let net.core.dev_weight always be non-zeroLiu Jian
The following problem was encountered during stability test: (NULL net_device): NAPI poll function process_backlog+0x0/0x530 \ returned 1, exceeding its budget of 0. ------------[ cut here ]------------ list_add double add: new=ffff88905f746f48, prev=ffff88905f746f48, \ next=ffff88905f746e40. WARNING: CPU: 18 PID: 5462 at lib/list_debug.c:35 \ __list_add_valid_or_report+0xf3/0x130 CPU: 18 UID: 0 PID: 5462 Comm: ping Kdump: loaded Not tainted 6.13.0-rc7+ RIP: 0010:__list_add_valid_or_report+0xf3/0x130 Call Trace: ? __warn+0xcd/0x250 ? __list_add_valid_or_report+0xf3/0x130 enqueue_to_backlog+0x923/0x1070 netif_rx_internal+0x92/0x2b0 __netif_rx+0x15/0x170 loopback_xmit+0x2ef/0x450 dev_hard_start_xmit+0x103/0x490 __dev_queue_xmit+0xeac/0x1950 ip_finish_output2+0x6cc/0x1620 ip_output+0x161/0x270 ip_push_pending_frames+0x155/0x1a0 raw_sendmsg+0xe13/0x1550 __sys_sendto+0x3bf/0x4e0 __x64_sys_sendto+0xdc/0x1b0 do_syscall_64+0x5b/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e The reproduction command is as follows: sysctl -w net.core.dev_weight=0 ping 127.0.0.1 This is because when the napi's weight is set to 0, process_backlog() may return 0 and clear the NAPI_STATE_SCHED bit of napi->state, causing this napi to be re-polled in net_rx_action() until __do_softirq() times out. Since the NAPI_STATE_SCHED bit has been cleared, napi_schedule_rps() can be retriggered in enqueue_to_backlog(), causing this issue. Making the napi's weight always non-zero solves this problem. Triggering this issue requires system-wide admin (setting is not namespaced). Fixes: e38766054509 ("[NET]: Fix sysctl net.core.dev_weight") Fixes: 3d48b53fb2ae ("net: dev_weight: TX/RX orthogonality") Signed-off-by: Liu Jian <liujian56@huawei.com> Link: https://patch.msgid.link/20250116143053.4146855-1-liujian56@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-17selftests: net: give up on the cmsg_time accuracy on slow machinesJakub Kicinski
Commit b9d5f5711dd8 ("selftests: net: increase the delay for relative cmsg_time.sh test") widened the accepted value range 8x but we still see flakes (at a rate of around 7%). Return XFAIL for the most timing sensitive test on slow machines. Before: # ./cmsg_time.sh Case UDPv4 - TXTIME rel returned '8074us - 7397us < 4000', expected 'OK' FAIL - 1/36 cases failed After: # ./cmsg_time.sh Case UDPv4 - TXTIME rel returned '1123us - 941us < 500', expected 'OK' (XFAIL) Case UDPv6 - TXTIME rel returned '1227us - 776us < 500', expected 'OK' (XFAIL) OK Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250116020105.931338-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-01-17Input: xpad - add support for Nacon Evol-X Xbox One ControllerMatheos Mattsson
Add Nacon Evol-X Xbox One to the list of supported devices. Signed-off-by: Matheos Mattsson <matheos.mattsson@gmail.com> Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com> Link: https://lore.kernel.org/r/20250107192830.414709-9-rojtberg@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-01-17Input: xpad - add unofficial Xbox 360 wireless receiver cloneNilton Perim Neto
Although it mimics the Microsoft's VendorID, it is in fact a clone. Taking into account that the original Microsoft Receiver is not being manufactured anymore, this drive can solve dpad issues encontered by those who still use the original 360 Wireless controller but are using a receiver clone. Signed-off-by: Nilton Perim Neto <niltonperimneto@gmail.com> Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com> Link: https://lore.kernel.org/r/20250107192830.414709-12-rojtberg@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-01-17Input: xpad - add support for wooting two he (arm)Jack Greiner
Add Wooting Two HE (ARM) to the list of supported devices. Signed-off-by: Jack Greiner <jack@emoss.org> Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com> Link: https://lore.kernel.org/r/20250107192830.414709-3-rojtberg@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-01-17Input: xpad - improve name of 8BitDo controller 2dc8:3106Leonardo Brondani Schenkel
8BitDo Pro 2 Wired Controller shares the same USB identifier (2dc8:3106) as a different device, so amend name to reflect that and reduce confusion as the user might think the controller was misdetected. Because Pro 2 Wired will not work in XTYPE_XBOXONE mode (button presses won't register), tagging it as XTYPE_XBOX360 remains appropriate. Signed-off-by: Leonardo Brondani Schenkel <leonardo@schenkel.net> Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com> Link: https://lore.kernel.org/r/20250107192830.414709-2-rojtberg@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-01-17Merge tag 'devicetree-fixes-for-6.13-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: "Another fix and testcase to avoid the newly added WARN in the case of non-translatable addresses" * tag 'devicetree-fixes-for-6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of/address: Fix WARN when attempting translating non-translatable addresses of/unittest: Add test that of_address_to_resource() fails on non-translatable address
2025-01-17Merge tag 'soc-fixes-6.13-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC fixes from Arnd Bergmann: "Two last minute fixes: one build issue on TI soc drivers, and a regression in the renesas reset controller driver" * tag 'soc-fixes-6.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: soc: ti: pruss: Fix pruss APIs reset: rzg2l-usbphy-ctrl: Assign proper of node to the allocated device
2025-01-17Merge tag 'platform-drivers-x86-v6.13-6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver fixes from Ilpo Järvinen: - dell-uart-backlight: Fix serdev race - lenovo-yoga-tab2-pro-1380-fastcharger: Fix serdev race * tag 'platform-drivers-x86-v6.13-6' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race platform/x86: dell-uart-backlight: fix serdev race
2025-01-17Merge tag 'mtd/fixes-for-6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull mtd revert from Miquel Raynal: "Very late this cycle we identified a breakage that could potentially hit several spi controller drivers because of a change in the way the dummy cycles validity is checked. We do not know at the moment how to handle the situation properly, so we prefer to revert the faulty patch for the next release" * tag 'mtd/fixes-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: Revert "mtd: spi-nor: core: replace dummy buswidth from addr to data"
2025-01-17tracing: gfp: Fix the GFP enum values shown for user space tracing toolsSteven Rostedt
Tracing tools like perf and trace-cmd read the /sys/kernel/tracing/events/*/*/format files to know how to parse the data and also how to print it. For the "print fmt" portion of that file, if anything uses an enum that is not exported to the tracing system, user space will not be able to parse it. The GFP flags use to be defines, and defines get translated in the print fmt sections. But now they are converted to use enums, which is not. The mm_page_alloc trace event format use to have: print fmt: "page=%p pfn=0x%lx order=%d migratetype=%d gfp_flags=%s", REC->pfn != -1UL ? (((struct page *)vmemmap_base) + (REC->pfn)) : ((void *)0), REC->pfn != -1UL ? REC->pfn : 0, REC->order, REC->migratetype, (REC->gfp_flags) ? __print_flags(REC->gfp_flags, "|", {( unsigned long)(((((((( gfp_t)(0x400u|0x800u)) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | (( gfp_t)0x100000u)) | (( gfp_t)0x02u)) | (( gfp_t)0x08u) | (( gfp_t)0)) | (( gfp_t)0x40000u) | (( gfp_t)0x80000u) | (( gfp_t)0x2000u)) & ~(( gfp_t)(0x400u|0x800u))) | (( gfp_t)0x400u)), "GFP_TRANSHUGE"}, {( unsigned long)((((((( gfp_t)(0x400u|0x800u)) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | (( gfp_t)0x100000u)) | (( gfp_t)0x02u)) | (( gfp_t)0x08u) | (( gfp_t)0)) ... Where the GFP values are shown and not their names. But after the GFP flags were converted to use enums, it has: print fmt: "page=%p pfn=0x%lx order=%d migratetype=%d gfp_flags=%s", REC->pfn != -1UL ? (vmemmap + (REC->pfn)) : ((void *)0), REC->pfn != -1UL ? REC->pfn : 0, REC->order, REC->migratetype, (REC->gfp_flags) ? __print_flags(REC->gfp_flags, "|", {( unsigned long)(((((((( gfp_t)(((((1UL))) << (___GFP_DIRECT_RECLAIM_BIT))|((((1UL))) << (___GFP_KSWAPD_RECLAIM_BIT)))) | (( gfp_t)((((1UL))) << (___GFP_IO_BIT))) | (( gfp_t)((((1UL))) << (___GFP_FS_BIT))) | (( gfp_t)((((1UL))) << (___GFP_HARDWALL_BIT)))) | (( gfp_t)((((1UL))) << (___GFP_HIGHMEM_BIT)))) | (( gfp_t)((((1UL))) << (___GFP_MOVABLE_BIT))) | (( gfp_t)0)) | (( gfp_t)((((1UL))) << (___GFP_COMP_BIT))) ... Where the enums names like ___GFP_KSWAPD_RECLAIM_BIT are shown and not their values. User space has no way to convert these names to their values and the output will fail to parse. What is shown is now: mm_page_alloc: page=0xffffffff981685f3 pfn=0x1d1ac1 order=0 migratetype=1 gfp_flags=0x140cca The TRACE_DEFINE_ENUM() macro was created to handle enums in the print fmt files. This causes them to be replaced at boot up with the numbers, so that user space tooling can parse it. By using this macro, the output is back to the human readable: mm_page_alloc: page=0xffffffff981685f3 pfn=0x122233 order=0 migratetype=1 gfp_flags=GFP_HIGHUSER_MOVABLE|__GFP_COMP Cc: stable@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Veronika Molnarova <vmolnaro@redhat.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/20250116214438.749504792@goodmis.org Reported-by: Michael Petlan <mpetlan@redhat.com> Closes: https://lore.kernel.org/all/87be5f7c-1a0-dad-daa0-54e342efaea7@redhat.com/ Fixes: 772dd0342727c ("mm: enumerate all gfp flags") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-01-17Merge tag 'linux-cpupower-6.14-rc1-second' of ↵Rafael J. Wysocki
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shuah/linux Merge additional cpupower update for 6.14 from Shuah Khan: "- Add missing residency header changes in cpuidle.h to SWIG" * tag 'linux-cpupower-6.14-rc1-second' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shuah/linux: pm: cpupower: Add missing residency header changes in cpuidle.h to SWIG
2025-01-17Merge tag 'hwmon-for-v6.13-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - ltc2991, tmp513: Fix problems seen when dividing negative numbers - drivetemp: Handle large timeouts observed on some drives - acpi_power_meter: Fix loading the driver on platforms without _PMD method * tag 'hwmon-for-v6.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (ltc2991) Fix mixed signed/unsigned in DIV_ROUND_CLOSEST hwmon: (drivetemp) Set scsi command timeout to 10s hwmon: (acpi_power_meter) Fix a check for the return value of read_domain_devices(). hwmon: (tmp513) Fix division of negative numbers
2025-01-17block: Don't trim an atomic writeJohn Garry
This is disallowed. This check will now be relevant since the device mapper personalities will start to support atomic writes, and they use this function. Signed-off-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Mike Snitzer <snitzer@kernel.org> Link: https://lore.kernel.org/r/20250116170301.474130-3-john.g.garry@oracle.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-17block: Add common atomic writes enable flagJohn Garry
Currently only stacked devices need to explicitly enable atomic writes by setting BLK_FEAT_ATOMIC_WRITES_STACKED flag. This does not work well for device mapper stacking devices, as there many sets of limits are stacked and what is the 'bottom' and 'top' device can swapped. This means that BLK_FEAT_ATOMIC_WRITES_STACKED needs to be set for many queue limits, which is messy. Generalize enabling atomic writes enabling by ensuring that all devices must explicitly set a flag - that includes NVMe, SCSI sd, and md raid. Signed-off-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Mike Snitzer <snitzer@kernel.org> Link: https://lore.kernel.org/r/20250116170301.474130-2-john.g.garry@oracle.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-01-17Merge tag 'gpio-fixes-for-v6.13' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fix from Bartosz Golaszewski: - convert regular spinlock to raw spinlock in gpio-xilinx to avoid a lockdep splat * tag 'gpio-fixes-for-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: xilinx: Convert gpio_lock to raw spinlock
2025-01-17PM: sleep: wakeirq: Introduce device-managed variant of dev_pm_set_wake_irq()Peng Fan
Add device-managed variant of dev_pm_set_wake_irq which automatically clear the wake irq on device destruction to simplify error handling and resource management in drivers. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://patch.msgid.link/20250103-wake_irq-v2-1-e3aeff5e9966@nxp.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-01-17Merge tag 'i2c-for-6.13-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - fix ref leak in the I2C core - fix remove notification in the address translator - missing error check in the pinctrl demuxer (plus a typo fix) - fix NAK handling when Linux is testunit target - fix NAK handling for the Renesas R-Car controller when it is a target * tag 'i2c-for-6.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: testunit: on errors, repeat NACK until STOP i2c: rcar: fix NACK handling when being a target i2c: mux: demux-pinctrl: correct comment i2c: mux: demux-pinctrl: check initial mux selection, too i2c: atr: Fix client detach i2c: core: fix reference leak in i2c_register_adapter()
2025-01-17Merge remote-tracking branches 'ras/edac-drivers' and 'ras/edac-misc' into ↵Borislav Petkov (AMD)
edac-updates * ras/edac-drivers: EDAC/cell: Remove powerpc Cell driver EDAC: Add an EDAC driver for the Loongson memory controller EDAC/{i10nm,skx,skx_common}: Support UV systems EDAC/i10nm: Add Intel Clearwater Forest server support * ras/edac-misc: EDAC: Fix typos in comments Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2025-01-17perf lock: Rename fields in lock_type_tableChun-Tse Shao
`lock_type_table` contains `name` and `str` which can be confusing. Rename them to `flags_name` and `lock_name` and add descriptions to enhance understanding. Tested by building perf for x86. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Chun-Tse Shao <ctshao@google.com> Cc: nick.forrington@arm.com Link: https://lore.kernel.org/r/20250116235838.2769691-3-ctshao@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-01-17perf lock: Add percpu-rwsem for type filterChun-Tse Shao
percpu-rwsem was missing in man page. And for backward compatibility, replace `pcpu-sem` with `percpu-rwsem` before parsing lock name. Tested `./perf lock con -ab -Y pcpu-sem` and `./perf lock con -ab -Y percpu-rwsem` Fixes: 4f701063bfa2 ("perf lock contention: Show lock type with address") Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Chun-Tse Shao <ctshao@google.com> Cc: nick.forrington@arm.com Link: https://lore.kernel.org/r/20250116235838.2769691-2-ctshao@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-01-17perf lock: Fix parse_lock_type which only retrieve one lock flagChun-Tse Shao
`parse_lock_type` can only add the first lock flag in `lock_type_table` given input `str`. For example, for `Y rwlock`, it only adds `rwlock:R` into this perf session. Another example is for `-Y mutex`, it only adds the mutex without `LCB_F_SPIN` flag. The patch fixes this issue, makes sure both `rwlock:R` and `rwlock:W` will be added with `-Y rwlock`, and so on. Testing: $ ./perf lock con -ab -Y mutex,rwlock -- perf bench sched pipe # Running 'sched/pipe' benchmark: # Executed 1000000 pipe operations between two processes Total time: 9.313 [sec] 9.313976 usecs/op 107365 ops/sec contended total wait max wait avg wait type caller 176 1.65 ms 19.43 us 9.38 us mutex pipe_read+0x57 34 180.14 us 10.93 us 5.30 us mutex pipe_write+0x50 7 77.48 us 16.09 us 11.07 us mutex do_epoll_wait+0x24d 7 74.70 us 13.50 us 10.67 us mutex do_epoll_wait+0x24d 3 35.97 us 14.44 us 11.99 us rwlock:W ep_done_scan+0x2d 3 35.00 us 12.23 us 11.66 us rwlock:W do_epoll_wait+0x255 2 15.88 us 11.96 us 7.94 us rwlock:W do_epoll_wait+0x47c 1 15.23 us 15.23 us 15.23 us rwlock:W do_epoll_wait+0x4d0 1 14.26 us 14.26 us 14.26 us rwlock:W ep_done_scan+0x2d 2 14.00 us 7.99 us 7.00 us mutex pipe_read+0x282 1 12.29 us 12.29 us 12.29 us rwlock:R ep_poll_callback+0x35 1 12.02 us 12.02 us 12.02 us rwlock:W do_epoll_ctl+0xb65 1 10.25 us 10.25 us 10.25 us rwlock:R ep_poll_callback+0x35 1 7.86 us 7.86 us 7.86 us mutex do_epoll_ctl+0x6c1 1 5.04 us 5.04 us 5.04 us mutex do_epoll_ctl+0x3d4 [namhyung: Add a comment and rename to 'mutex:spin' for consistency Fixes: d783ea8f62c4 ("perf lock contention: Simplify parse_lock_type()") Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Chun-Tse Shao <ctshao@google.com> Cc: nick.forrington@arm.com Link: https://lore.kernel.org/r/20250116235838.2769691-1-ctshao@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-01-17perf lock: Fix return code for functions in __cmd_contentionAthira Rajeev
perf lock contention returns zero exit value even if the lock contention BPF setup failed. # ./perf lock con -b true libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was CONFIG_DEBUG_INFO_BTF enabled? libbpf: failed to find '.BTF' ELF section in /lib/modules/6.13.0-rc3+/build/vmlinux libbpf: failed to find valid kernel BTF libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was CONFIG_DEBUG_INFO_BTF enabled? libbpf: failed to find '.BTF' ELF section in /lib/modules/6.13.0-rc3+/build/vmlinux libbpf: failed to find valid kernel BTF libbpf: Error loading vmlinux BTF: -ESRCH libbpf: failed to load object 'lock_contention_bpf' libbpf: failed to load BPF skeleton 'lock_contention_bpf': -ESRCH Failed to load lock-contention BPF skeleton lock contention BPF setup failed # echo $? 0 Fix this by saving the return code for lock_contention_prepare so that command exits with proper return code. Similarly set the return code properly for two other functions in builtin-lock, namely setup_output_field() and select_key(). Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20250110093730.93610-1-atrajeev@linux.vnet.ibm.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-01-17selftests/landlock: Add layout1.umount_sandboxer testsMickaël Salaün
Check that a domain is not tied to the executable file that created it. For instance, that could happen if a Landlock domain took a reference to a struct path. Move global path names to common.h and replace copy_binary() with a more generic copy_file() helper. Test coverage for security/landlock is 92.7% of 1133 lines according to gcc/gcov-14. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-23-mic@digikod.net [mic: Update date and add test coverage] Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17selftests/landlock: Add wrappers.hMickaël Salaün
Extract syscall wrappers to make them usable by standalone binaries (see next commit). Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-22-mic@digikod.net [mic: Fix comments] Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17selftests/landlock: Fix error messageMickaël Salaün
The global variable errno may not be set in test_execute(). Do not use it in related error message. Cc: Günther Noack <gnoack@google.com> Fixes: e1199815b47b ("selftests/landlock: Add user space tests") Link: https://lore.kernel.org/r/20250108154338.1129069-21-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17landlock: Optimize file path walks and prepare for audit supportMickaël Salaün
Always synchronize access_masked_parent* with access_request_parent* according to allowed_parent*. This is required for audit support to be able to get back to the reason of denial. In a rename/link action, instead of always checking a rule two times for the same parent directory of the source and the destination files, only check it when an action on a child was not already allowed. This also enables us to keep consistent allowed_parent* status, which is required to get back to the reason of denial. For internal mount points, only upgrade allowed_parent* to true but do not wrongfully set both of them to false otherwise. This is also required to get back to the reason of denial. This does not impact the current behavior but slightly optimize code and prepare for audit support that needs to know the exact reason why an access was denied. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-14-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17selftests/landlock: Add test to check partial access in a mount treeMickaël Salaün
Add layout1.refer_part_mount_tree_is_allowed to test the masked logical issue regarding collect_domain_accesses() calls followed by the is_access_to_paths_allowed() check in current_check_refer_path(). See previous commit. This test should work without the previous fix as well, but it enables us to make sure future changes will not have impact regarding this behavior. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-13-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17landlock: Align partial refer access checks with final onesMickaël Salaün
Fix a logical issue that could have been visible if the source or the destination of a rename/link action was allowed for either the source or the destination but not both. However, this logical bug is unreachable because either: - the rename/link action is allowed by the access rights tied to the same mount point (without relying on access rights in a parent mount point) and the access request is allowed (i.e. allow_parent1 and allow_parent2 are true in current_check_refer_path), - or a common rule in a parent mount point updates the access check for the source and the destination (cf. is_access_to_paths_allowed). See the following layout1.refer_part_mount_tree_is_allowed test that work with and without this fix. This fix does not impact current code but it is required for the audit support. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-12-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17landlock: Simplify initially denied access rightsMickaël Salaün
Upgrade domain's handled access masks when creating a domain from a ruleset, instead of converting them at runtime. This is more consistent and helps with audit support. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-7-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17landlock: Move access typesMickaël Salaün
Move LANDLOCK_ACCESS_FS_INITIALLY_DENIED, access_mask_t, struct access_mask, and struct access_masks_all to a dedicated access.h file. Rename LANDLOCK_ACCESS_FS_INITIALLY_DENIED to _LANDLOCK_ACCESS_FS_INITIALLY_DENIED to make it clear that it's not part of UAPI. Add some newlines when appropriate. This file will be extended with following commits, and it will help to avoid dependency loops. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-6-mic@digikod.net [mic: Fix rebase conflict because of the new cleanup headers] Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17landlock: Factor out check_access_path()Mickaël Salaün
Merge check_access_path() into current_check_access_path() and make hook_path_mknod() use it. Cc: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20250108154338.1129069-4-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17selftests/landlock: Fix build with non-default pthread linkingMickaël Salaün
Old toolchains require explicit -lpthread (e.g. on Debian 11). Cc: Nathan Chancellor <nathan@kernel.org> Cc: Tahera Fahimi <fahimitahera@gmail.com> Fixes: c8994965013e ("selftests/landlock: Test signal scoping for threads") Reviewed-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20250115145409.312226-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
2025-01-17cpufreq: Use str_enable_disable()-like helpersKrzysztof Kozlowski
Replace ternary (condition ? "enable" : "disable") syntax with helpers from string_choices.h because: 1. Simple function call with one argument is easier to read. Ternary operator has three arguments and with wrapping might lead to quite long code. 2. Is slightly shorter thus also easier to read. 3. It brings uniformity in the text - same string. 4. Allows deduping by the linker, which results in a smaller binary file. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://patch.msgid.link/20250114190600.846651-1-krzysztof.kozlowski@linaro.org [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-01-17perf hist: Fix width calculation in hpp__fmt()Dmitry Vyukov
hpp__width_fn() round up width to length of the field name, hpp__fmt() should do it too. Otherwise, the numbers may end up unaligned if the field name is long. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: James Clark <james.clark@linaro.org> Link: https://lore.kernel.org/r/20250108065949.235718-1-dvyukov@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-01-17thermal: core: Rename function argument related to trip crossingRafael J. Wysocki
Rename the 'crossed_up' function argument to 'upward', which is more proper English and a better match for representing temperature change direction, everywhere in the code. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://patch.msgid.link/2360961.ElGaqSPkdT@rjwysocki.net [ rjw: Rebased ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-01-17thermal: gov_bang_bang: Relocate regulation logic descriptionRafael J. Wysocki
Move the regulation logic description from the bang_bang_trip_crossed() kerneldoc to the preamble. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://patch.msgid.link/4987649.31r3eYUQgx@rjwysocki.net [ rjw: Removed a trailing whitespace ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-01-17thermal: core: Rename callback functions in two governorsRafael J. Wysocki
The names of :trip_crossed() callback functions in the Bang-bang and User-space thermal governors don't match their current purpose any more after previous changes, so rename them. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://patch.msgid.link/5859084.DvuYhMxLoT@rjwysocki.net
2025-01-17regulator: dt-bindings: Add regulator-power-budget-milliwatt propertyKory Maincent
Introduce a new property to describe the power budget of the regulator. This property will allow power management support for regulator consumers like PSE controllers, enabling them to make decisions based on the available power capacity. Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20250115-feature_regulator_pw_budget-v2-2-0a44b949e6bc@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-01-17regulator: Add support for power budgetKory Maincent
Introduce power budget management for the regulator device. Enable tracking of available power capacity by providing helpers to request and release power budget allocations. Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20250115-feature_regulator_pw_budget-v2-1-0a44b949e6bc@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-01-17Merge tag 'pmdomain-v6.13-rc2-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm Pull pmdomain fix from Ulf Hansson: - imx8mp-blk-ctrl: Add missing loop break condition * tag 'pmdomain-v6.13-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: pmdomain: imx8mp-blk-ctrl: add missing loop break condition
2025-01-17ACPI: platform_profile: Add a prefix to log messagesKurt Borja
Declare a pr_fmt prefix. Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250116002721.75592-20-kuurtb@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-17ACPI: platform_profile: Add documentationKurt Borja
Add kerneldoc and sysfs class documentation. Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250116002721.75592-19-kuurtb@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-17ACPI: platform_profile: Clean platform_profile_handlerKurt Borja
Remove parent device *dev from platform_profile_handler, as it's no longer accessed directly. Rename class_dev -> dev. Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250116002721.75592-18-kuurtb@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-17ACPI: platform_profile: Move platform_profile_handlerKurt Borja
platform_profile_handler is now an internal structure. Move it to platform_profile.c. Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250116002721.75592-17-kuurtb@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-17ACPI: platform_profile: Remove platform_profile_handler from exported symbolsKurt Borja
In order to protect the platform_profile_handler from API consumers, allocate it in platform_profile_register() and modify it's signature accordingly. Remove the platform_profile_handler from all consumer drivers and replace them with a pointer to the class device, which is now returned from platform_profile_register(). Replace *pprof with a pointer to the class device in the rest of exported symbols. Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Kurt Borja <kuurtb@gmail.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250116002721.75592-16-kuurtb@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
generated by cgit (git 2.34.1) at 2025-09-11 03:06:21 +0000