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2022-12-17parisc: Align parisc MADV_XXX constants with all other architecturesHelge Deller5-34/+49
Adjust some MADV_XXX constants to be in sync what their values are on all other platforms. There is currently no reason to have an own numbering on parisc, but it requires workarounds in many userspace sources (e.g. glibc, qemu, ...) - which are often forgotten and thus introduce bugs and different behaviour on parisc. A wrapper avoids an ABI breakage for existing userspace applications by translating any old values to the new ones, so this change allows us to move over all programs to the new ABI over time. Signed-off-by: Helge Deller <[email protected]>
2022-12-17parisc: led: Fix potential null-ptr-deref in start_task()Shang XiaoJing1-0/+3
start_task() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: start_task() create_singlethread_workqueue() # failed, led_wq is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL. Fixes: 3499495205a6 ("[PARISC] Use work queue in LED/LCD driver instead of tasklet.") Signed-off-by: Shang XiaoJing <[email protected]> Signed-off-by: Helge Deller <[email protected]> Cc: <[email protected]>
2022-12-17io_uring: don't use TIF_NOTIFY_SIGNAL to test for availability of task_workJens Axboe1-2/+1
Use task_work_pending() as a better test for whether we have task_work or not, TIF_NOTIFY_SIGNAL is only valid if the any of the task_work items had been queued with TWA_SIGNAL as the notification mechanism. Hence task_work_pending() is a more reliable check. Signed-off-by: Jens Axboe <[email protected]>
2022-12-17Merge tag 'x86_mm_for_6.2_v2' of ↵Linus Torvalds55-395/+356
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm updates from Dave Hansen: "New Feature: - Randomize the per-cpu entry areas Cleanups: - Have CR3_ADDR_MASK use PHYSICAL_PAGE_MASK instead of open coding it - Move to "native" set_memory_rox() helper - Clean up pmd_get_atomic() and i386-PAE - Remove some unused page table size macros" * tag 'x86_mm_for_6.2_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits) x86/mm: Ensure forced page table splitting x86/kasan: Populate shadow for shared chunk of the CPU entry area x86/kasan: Add helpers to align shadow addresses up and down x86/kasan: Rename local CPU_ENTRY_AREA variables to shorten names x86/mm: Populate KASAN shadow for entire per-CPU range of CPU entry area x86/mm: Recompute physical address for every page of per-CPU CEA mapping x86/mm: Rename __change_page_attr_set_clr(.checkalias) x86/mm: Inhibit _PAGE_NX changes from cpa_process_alias() x86/mm: Untangle __change_page_attr_set_clr(.checkalias) x86/mm: Add a few comments x86/mm: Fix CR3_ADDR_MASK x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros mm: Convert __HAVE_ARCH_P..P_GET to the new style mm: Remove pointless barrier() after pmdp_get_lockless() x86/mm/pae: Get rid of set_64bit() x86_64: Remove pointless set_64bit() usage x86/mm/pae: Be consistent with pXXp_get_and_clear() x86/mm/pae: Use WRITE_ONCE() x86/mm/pae: Don't (ab)use atomic64 mm/gup: Fix the lockless PMD access ...
2022-12-17Merge tag 'msi-fixes-6.2-1' of ↵Linus Torvalds6-3/+9
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms Pull MSI fixes from Marc Zyngier: "Thomas tasked me with sending out a few urgent fixes after the giant MSI rework that landed in 6.2, as both s390 and powerpc ended-up suffering from it (they do not use the full core code infrastructure, leading to these previously undetected issues): - Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when the architecture does not make use of irq domains instead of returning 0, which is pretty limiting. - Check for the presence of an irq domain when validating the MSI iterator, as s390/powerpc won't have one. - Fix powerpc's MSI backends which fail to clear the descriptor's IRQ field on teardown, leading to a splat and leaked descriptors" * tag 'msi-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms: powerpc/msi: Fix deassociation of MSI descriptors genirq/msi: Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when no domain is present genirq/msi: Check for the presence of an irq domain when validating msi_ctrl
2022-12-17Merge tag 'hsi-for-6.2' of ↵Linus Torvalds4-34/+14
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi Pull HSI updates from Sebastian Reichel: - misc small fixes * tag 'hsi-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: omap_ssi_core: Fix error handling in ssi_init() headers: Remove some left-over license text in include/uapi/linux/hsi/ HSI: omap_ssi_core: fix possible memory leak in ssi_probe() HSI: omap_ssi_core: fix unbalanced pm_runtime_disable() HSI: ssi_protocol: Fix return type of ssip_pn_xmit()
2022-12-17Merge tag 'for-v6.2' of ↵Linus Torvalds43-285/+372
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: - bq25890: add charge voltage/current support - bd99954: convert to linear range - convert all i2c drivers to use probe_new - misc fixes and cleanups * tag 'for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (51 commits) power: supply: fix null pointer dereferencing in power_supply_get_battery_info power: supply: bq25890: Fix usb-notifier probe and remove races power: supply: bq25890: Ensure pump_express_work is cancelled on remove power: supply: Fix refcount leak in rk817_charger_probe power: supply: bq25890: Only use pdata->regulator_init_data for vbus power: supply: ab8500: Fix error handling in ab8500_charger_init() power: supply: cw2015: Fix potential null-ptr-deref in cw_bat_probe() power: supply: z2_battery: Fix possible memleak in z2_batt_probe() power: supply: z2_battery: Convert to i2c's .probe_new() power: supply: ucs1002: Convert to i2c's .probe_new() power: supply: smb347: Convert to i2c's .probe_new() power: supply: sbs-manager: Convert to i2c's .probe_new() power: supply: sbs: Convert to i2c's .probe_new() power: supply: rt9455: Convert to i2c's .probe_new() power: supply: rt5033_battery: Convert to i2c's .probe_new() power: supply: max17042_battery: Convert to i2c's .probe_new() power: supply: max17040: Convert to i2c's .probe_new() power: supply: max14656: Convert to i2c's .probe_new() power: supply: ltc4162-l: Convert to i2c's .probe_new() power: supply: ltc2941: Convert to i2c's .probe_new() ...
2022-12-17Merge tag 'linux-watchdog-6.2-rc1' of ↵Linus Torvalds16-106/+474
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - Add Advantech EC watchdog driver - Add support for MT6795 Helio X10 watchdog and toprgu - Add support for MT8188 watchdog device - Remove #ifdef guards for PM related functions - Other fixes and improvements * tag 'linux-watchdog-6.2-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: aspeed: Enable pre-timeout interrupt watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running watchdog: rn5t618: add support for read out bootstatus watchdog: kempld: Remove #ifdef guards for PM related functions watchdog: omap: Remove #ifdef guards for PM related functions watchdog: twl4030: Remove #ifdef guards for PM related functions watchdog: at91rm9200: Remove #ifdef guards for PM related functions watchdog: Add Advantech EC watchdog driver dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT8173 dt-bindings: watchdog: mediatek,mtk-wdt: Add compatible for MT6795 dt-bindings: watchdog: mediatek: Convert mtk-wdt to json-schema watchdog: mediatek: mt8188: add wdt support dt-bindings: reset: mt8188: add toprgu reset-controller header file dt-bindings: watchdog: Add compatible for MediaTek MT8188 watchdog: mtk_wdt: Add support for MT6795 Helio X10 watchdog and toprgu
2022-12-17Merge tag 'leds-6.2-rc1' of ↵Linus Torvalds15-115/+108
git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds Pull LED updates from Pavel Machek: "Lee Jones offered his help with maintaining LEDs, thanks a lot. Plus, there are some bugfixes as a bonus" * tag 'leds-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: leds: MAINTAINERS: include dt-bindings headers leds: qcom,pm8058-led: Convert to DT schema leds: use sysfs_emit() to instead of scnprintf() leds: is31fl319x: Fix setting current limit for is31fl319{0,1,3} MAINTAINERS: Add additional co-maintainer to LEDs leds: lp5523: fix out-of-bounds bug in lp5523_selftest() dt-bindings: leds: Add 'cpuX' to 'linux,default-trigger' led: qcom-lpg: Fix sleeping in atomic leds: max8997: Don't error if there is no pdata leds: lp55xx: remove variable j leds-pca955x: Remove the unused function pca95xx_num_led_regs()
2022-12-17Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds2-33/+41
Pull rdma fixes from Jason Gunthorpe: "Fix two build warnings on 32 bit platforms It seems the linux-next CI and 0-day bot are not testing enough 32 bit configurations, as soon as you merged the rdma pull request there were two instant reports of warnings on these sytems that I would have thought should have been covered by time in linux-next Anyhow, here are the fixes so people don't hit problems with -Werror" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/siw: Fix pointer cast warning RDMA/rxe: Fix compile warnings on 32-bit
2022-12-17Merge tag 'gfs2-v6.1-rc7-fixes' of ↵Linus Torvalds11-333/+234
git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 Pull gfs2 updtaes from Andreas Gruenbacher: - Revert a change to delete_work_func() that has gone wrong in commit c412a97cf6c5 ("gfs2: Use TRY lock in gfs2_inode_lookup for UNLINKED inodes"). - Avoid dequeuing GL_ASYNC glock holders twice by first checking if the holder is still queued. - gfs2: Always check the inode size of inline inodes when reading in inodes to prevent corrupt filesystem images from causing weid errors. - Properly handle a race between gfs2_create_inode() and gfs2_inode_lookup() that causes insert_inode_locked4() to return -EBUSY. - Fix and clean up the interaction between gfs2_create_inode() and gfs2_evict_inode() by completely handling the inode deallocation and destruction in gfs2_evict_inode(). - Remove support for glock holder auto-demotion as we have no current plans of using this feature again. - And a few more minor cleanups and clarifications. * tag 'gfs2-v6.1-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: Remove support for glock holder auto-demotion (2) gfs2: Remove support for glock holder auto-demotion gfs2: Minor gfs2_try_evict cleanup gfs2: Partially revert gfs2_inode_lookup change gfs2: Add gfs2_inode_lookup comment gfs2: Uninline and improve glock_{set,clear}_object gfs2: Simply dequeue iopen glock in gfs2_evict_inode gfs2: Clean up after gfs2_create_inode rework gfs2: Avoid dequeuing GL_ASYNC glock holders twice gfs2: Make gfs2_glock_hold return its glock argument gfs2: Always check inode size of inline inodes gfs2: Cosmetic gfs2_dinode_{in,out} cleanup gfs2: Handle -EBUSY result of insert_inode_locked4 gfs2: Fix and clean up create / evict interaction gfs2: Clean up initialization of "ip" in gfs2_create_inode gfs2: Get rid of ghs[] in gfs2_create_inode gfs2: Add extra error check in alloc_dinode
2022-12-17buildtar: fix tarballs with EFI_ZBOOT enabledVeronika Kabatova1-1/+1
When CONFIG_EFI_ZBOOT is enabled, the binary name is not Image.gz anymore but vmlinuz.efi. No vmlinuz gets put into the tarball as the buildtar script doesn't recognize this name. Remedy this by adding the binary name to the list of acceptable files to package. Reported-by: CKI Project <[email protected]> Signed-off-by: Veronika Kabatova <[email protected]> Acked-by: Ard Biesheuvel <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]>
2022-12-17parisc: Fix inconsistent indenting in setup_cmdline()Helge Deller1-14/+12
Fix warning reported by 0-DAY CI Kernel Test Service: arch/parisc/kernel/setup.c:64 setup_cmdline() warn: inconsistent indenting Reported-by: kernel test robot <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-17powerpc/msi: Fix deassociation of MSI descriptorsMarc Zyngier5-0/+5
Since 2f2940d16823 ("genirq/msi: Remove filter from msi_free_descs_free_range()"), the core MSI code relies on the msi_desc->irq field to have been cleared before the descriptor can be freed, as it indicates that there is no association with a device anymore. The irq domain code provides this guarantee, and so does s390, which is one of the two architectures not using irq domains for MSIs. Powerpc, however, is missing this particular requirements, leading in a splat and leaked MSI descriptors. Adding the now required irq reset to the handful of powerpc backends that implement MSIs fixes that particular problem. Reported-by: Guenter Roeck <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-12-16skbuff: Account for tail adjustment during pull operationsSubash Abhinov Kasiviswanathan1-0/+3
Extending the tail can have some unexpected side effects if a program uses a helper like BPF_FUNC_skb_pull_data to read partial content beyond the head skb headlen when all the skbs in the gso frag_list are linear with no head_frag - kernel BUG at net/core/skbuff.c:4219! pc : skb_segment+0xcf4/0xd2c lr : skb_segment+0x63c/0xd2c Call trace: skb_segment+0xcf4/0xd2c __udp_gso_segment+0xa4/0x544 udp4_ufo_fragment+0x184/0x1c0 inet_gso_segment+0x16c/0x3a4 skb_mac_gso_segment+0xd4/0x1b0 __skb_gso_segment+0xcc/0x12c udp_rcv_segment+0x54/0x16c udp_queue_rcv_skb+0x78/0x144 udp_unicast_rcv_skb+0x8c/0xa4 __udp4_lib_rcv+0x490/0x68c udp_rcv+0x20/0x30 ip_protocol_deliver_rcu+0x1b0/0x33c ip_local_deliver+0xd8/0x1f0 ip_rcv+0x98/0x1a4 deliver_ptype_list_skb+0x98/0x1ec __netif_receive_skb_core+0x978/0xc60 Fix this by marking these skbs as GSO_DODGY so segmentation can handle the tail updates accordingly. Fixes: 3dcbdb134f32 ("net: gso: Fix skb_segment splat when splitting gso_size mangled skb having linear-headed frag_list") Signed-off-by: Sean Tranchetti <[email protected]> Signed-off-by: Subash Abhinov Kasiviswanathan <[email protected]> Reviewed-by: Alexander Duyck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-12-16devlink: protect devlink dump by the instance lockJakub Kicinski1-0/+3
Take the instance lock around devlink_nl_fill() when dumping, doit takes it already. We are only dumping basic info so in the worst case we were risking data races around the reload statistics. Until the big devlink mutex was removed all relevant code was protected by it, so the missing instance lock was not exposed. Fixes: d3efc2a6a6d8 ("net: devlink: remove devlink_mutex") Reviewed-by: Jiri Pirko <[email protected]> Reviewed-by: Jacob Keller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-12-16net: ethernet: ti: am65-cpsw: fix CONFIG_PM #ifdefArnd Bergmann1-3/+1
The #ifdef check is incorrect and leads to a warning: drivers/net/ethernet/ti/am65-cpsw-nuss.c:1679:13: error: 'am65_cpsw_nuss_remove_rx_chns' defined but not used [-Werror=unused-function] 1679 | static void am65_cpsw_nuss_remove_rx_chns(void *data) It's better to remove the #ifdef here and use the modern SYSTEM_SLEEP_PM_OPS() macro instead. Fixes: 24bc19b05f1f ("net: ethernet: ti: am65-cpsw: Add suspend/resume support") Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Alexander Duyck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-12-16exit: Use READ_ONCE() for all oops/warn limit readsKees Cook2-4/+9
Use a temporary variable to take full advantage of READ_ONCE() behavior. Without this, the report (and even the test) might be out of sync with the initial test. Reported-by: Peter Zijlstra <[email protected]> Link: https://lore.kernel.org/lkml/[email protected] Fixes: 9fc9e278a5c0 ("panic: Introduce warn_limit") Fixes: d4ccd54d28d3 ("exit: Put an upper limit on how often we can oops") Cc: "Eric W. Biederman" <[email protected]> Cc: Jann Horn <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Petr Mladek <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Luis Chamberlain <[email protected]> Cc: Marco Elver <[email protected]> Cc: tangmeng <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Tiezhu Yang <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2022-12-16RDMA/siw: Fix pointer cast warningArnd Bergmann1-1/+1
The previous build fix left a remaining issue in configurations with 64-bit dma_addr_t on 32-bit architectures: drivers/infiniband/sw/siw/siw_qp_tx.c: In function 'siw_get_pblpage': drivers/infiniband/sw/siw/siw_qp_tx.c:32:37: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] 32 | return virt_to_page((void *)paddr); | ^ Use the same double cast here that the driver uses elsewhere to convert between dma_addr_t and void*. Fixes: 0d1b756acf60 ("RDMA/siw: Pass a pointer to virt_to_page()") Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Bernard Metzler <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2022-12-16Merge tag 'arm64-fixes' of ↵Linus Torvalds9-87/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: - Fix Kconfig dependencies to re-allow the enabling of function graph tracer and shadow call stacks at the same time. - Revert the workaround for CPU erratum #2645198 since the CONFIG_ guards were incorrect and the code has therefore not seen any real exposure in -next. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: Revert "arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption" ftrace: Allow WITH_ARGS flavour of graph tracer with shadow call stack
2022-12-16Merge tag 'perf-tools-for-v6.2-1-2022-12-16' of ↵Linus Torvalds374-26300/+11242
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools updates from Arnaldo Carvalho de Melo: "Libraries: - Drop the old copy of libtraceevent in tools/lib/traceevent/ now that all major distros ship it from its external repository. This is now just another feature detection, emitting a warning when the libtraceevent-dev[el] package isn't installed, disabling the build of perf features and tools that strictly require parsing things from tracefs while keeping the core functionality present and working with a subset of the events, the most used ones like CPU cycles, hardware cache and also vendor events, etc. This was tested with lots of containers for Fedora, Debian, OpenSUSE, Alpine Linux, Ubuntu, with cross builds, etc. Build: - Update to C standard to gnu11, like was done for the kernel. - Install the tools/lib/ libraries locally instead of having headers searched directly from the source code directories, to help the cases where we can build either from in-kernel source libraries or from the same library shipped as a distro package, as is the case with libbpf and was the case with libtraceevent. perf stat: - Do not delay the workload with --delay, the delay is just for starting to count the events, to skip noise at workload startup. - When we have events for each cgroup, the metric should be printed for each cgroup separately. $ perf stat -a --for-each-cgroup system.slice,user.slice --metric-only sleep 1 Performance counter stats for 'system wide': GHz insn per cycle branch-misses of all branches system.slice 3.792 0.61 3.24% user.slice 3.661 2.32 0.37% - Fix printing field separator in CSV metrics output. - Fix --metric-only --json output. - Fix summary output in CSV with --metric-only. - Update event group check for support of uncore event. perf test: - Stop requiring a C toolchain in shell tests, instead add a workload option that has all the previously C snippets built as part of 'perf test -w' that then get used in the 'perf test' shell scripts. - Add event group test for events in multiple PMUs - The "kernel lock contention analysis" test should not print warnings in quiet mode. - Add attr tests for ARM64's new VG register. - Fix record test on KVM guests, as using precise flag with the br_inst_retired.near_call event causes the test fail on KVM guests, even when the guests have PMU forwarding enabled and the event itself is supported, so just remove the precise flag from the event. - Add mechanism for skipping attr tests on specific kernel versions where it is known that these checks will fail. - Skip watchpoint tests if no watchpoints available. - Add more Intel PT 'perf test' entries: hybrid CPUs, split the packet decoder into a suite of subtests. perf script: - Introduce task analyzer python script, where one first records some events: Recording can be done in two ways: $ perf script record tasks-analyzer -- sleep 10 $ perf record -e sched:sched_switch -a -- sleep 10 The script can parse any perf.data files, as long as it has sched:sched_switch events, other events will be ignored. The most simple report use case is to just call the script without arguments. Runtime is the time the task was running on the CPU, Time Out-In is the time between the process being scheduled *out* and scheduled back *in*. So the last time span between two executions: $ perf script report tasks-analyzer Switched-In Switched-Out CPU PID TID Comm Runtime Time Out-In 15576.658891407 15576.659156086 4 2412 2428 gdbus 265 1949 15576.659111320 15576.659455410 0 2412 2412 gnome-shell 344 2267 15576.659491326 15576.659506173 2 74 74 kworker/2:1 15 13145 15576.659506173 15576.659825748 2 2858 2858 gnome-terminal- 320 63263 15576.659871270 15576.659902872 6 20932 20932 kworker/u16:0 32 2314582 15576.659909951 15576.659945501 3 27264 27264 sh 36 -1 15576.659853285 15576.659971052 7 27265 27265 perf 118 5050741 [...] perf lock: - Allow concurrent record and report to support live monitoring of kernel lock contention without BPF: # perf lock record -a -o- sleep 1 | perf lock contention -i- contended total wait max wait avg wait type caller 2 10.27 us 6.17 us 5.13 us spinlock load_balance+0xc03 1 5.29 us 5.29 us 5.29 us rwlock:W ep_scan_ready_list+0x54 1 4.12 us 4.12 us 4.12 us spinlock smpboot_thread_fn+0x116 1 3.28 us 3.28 us 3.28 us mutex pipe_read+0x50 - Implement -t/--threads option when using BPF: $ sudo ./perf lock contention -abt -E 5 sleep 1 contended total wait max wait avg wait pid comm 1 740.66 ms 740.66 ms 740.66 ms 1950 nv_queue 3 305.50 ms 298.19 ms 101.83 ms 1884 nvidia-modeset/ 1 25.14 us 25.14 us 25.14 us 2725038 EventManager_De 12 23.09 us 9.30 us 1.92 us 0 swapper 1 20.18 us 20.18 us 20.18 us 2725033 EventManager_De - Add -l/--lock-addr to aggregate per-lock-instance contention: $ sudo ./perf lock contention -abl sleep 1 contended total wait max wait avg wait address symbol 1 36.28 us 36.28 us 36.28 us ffff92615d6448b8 9 10.91 us 1.84 us 1.21 us ffffffffbaed50c0 rcu_state 1 10.49 us 10.49 us 10.49 us ffff9262ac4f0c80 8 4.68 us 1.67 us 585 ns ffffffffbae07a40 jiffies_lock 3 3.03 us 1.45 us 1.01 us ffff9262277861e0 1 924 ns 924 ns 924 ns ffff926095ba9d20 1 436 ns 436 ns 436 ns ffff9260bfda4f60 perf record: - Add remaining branch filters: "no_cycles", "no_flags" & "hw_index", to be used with hardware such as Intel's LBR that allows things like stitching stacks of two samples to overcome the limits of the number of LBR registers. Symbol resolution: - Handle .debug files created with 'objcopy --only-keep-debug', where program headers are zeroed and thus can't be used for adjustments, use the info in the runtime_ss (runtime ELF) instead. perf trace: - Add BPF based augmenter for the 'perf_event_open's 'struct perf_event_attr' argument. - Add BPF based augmenter for the 'clock_gettime's 'struct timespec' argument. - In both cases the syscall tracepoint has just the pointer value, we need to hook a BPF program to collect the pointer contents, and then, in userspace, pretty print it in 'perf trace'. perf list: - Introduce JSON output of events. - Streamline how the expression specifying what events should be shown is handled, fixing several corner cases, such as the metric filter that is specified as a glob but was using strstr(). perf probe: - Fix to avoid crashing if DW_AT_decl_file is NULL, coping with clang generating DWARF5 like that. - Use dwarf_attr_integrate() as generic DWARF attr accessor as it supersedes dwarf_attr(), supporting abstact origin DIEs. perf inject: - Set PERF_RECORD_MISC_BUILD_ID_SIZE in the PERF_RECORD_HEADER_BUILD_ID so that perf.data readers can get the real build-id size and avoid trailing zeroes. perf data: - Add tracepoint fields when converting a perf.data file to JSON. arm64: - Fix mksyscalltbl, don't lose syscalls due to sort -nu. - Add Arm Neoverse V2 PMU events. riscv: - Add riscv sbi firmware std event files. - Add Sifive U74 vendor events (JSON) file. - Add some more events and metrics for Alderlake/Alderlake-N. Documentation: - Add data documentation for the PMU structs in the C source code. Miscellaneous: - Periodic sanitization of headers, adding missing includes, removing needless ones, creating new ones, etc. - Use sig_atomic_t for signal handlers to avoid undefined behaviour in all perf tools. - Fixes for libbpf 1.0+ compatibility (maps, etc) on 'perf trace' BPF examples. - Remove some old perf bpf examples, leave the best ones that demonstrate how to associate BPF functions to points in the kernel. - Make quiet mode consistent between tools. - Use dedicated non-atomic clear/set bit helpers. - Use "grep -E" instead of "egrep" as recommended by warning emitted by GNU grep since at least version 3.8. - Complete list of supported subcommands in the 'perf daemon' help message. - Update John Garry's email address for arm64 perf tooling on the MAINTAINERS file, he moved from Huawei to Oracle" * tag 'perf-tools-for-v6.2-1-2022-12-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (239 commits) libperf: Fix install_pkgconfig target perf tools: Use "grep -E" instead of "egrep" perf stat: Do not delay the workload with --delay perf evlist: Remove group option. perf build: Fix python/perf.so library's name perf test arm64: Add attr tests for new VG register perf test: Add mechanism for skipping attr tests on kernel versions perf test: Add mechanism for skipping attr tests on auxiliary vector values perf test: Add ability to test exit code for attr tests perf test: add new task-analyzer tests perf script: task-analyzer add csv support perf script: Introduce task analyzer python script perf cs-etm: Print auxtrace info even if OpenCSD isn't linked perf cs-etm: Cleanup cs_etm__process_auxtrace_info() perf cs-etm: Tidy up auxtrace info header printing perf cs-etm: Remove unused stub methods perf cs-etm: Print unknown header version as an error perf test: Update perf lock contention test perf lock contention: Add -l/--lock-addr option perf lock contention: Implement -t/--threads option for BPF ...
2022-12-16cifs: set correct ipc status after initial tree connectPaulo Alcantara1-2/+5
cifs_tcon::status wasn't correctly updated to TID_GOOD after establishing initial IPC connection thus staying at TID_NEW as long as it wasn't reconnected. Cc: [email protected] Signed-off-by: Paulo Alcantara (SUSE) <[email protected]> Signed-off-by: Steve French <[email protected]>
2022-12-16Fix mismerge due to devnode now taking a 'const *' deviceLinus Torvalds1-1/+1
This was a mismerge of a semantic conflict in my merge of the driver core updates, where commit ff62b8e6588f ("driver core: make struct class.devnode() take a const *") changed the devnode function pointer type. In the meantime, the drm tree I merged earlier had introduced a new use of that in commit 8bf4889762a8 ("drivers/accel: define kconfig and register a new major"). And of course this happens when I'm traveling with my laptop, and thus didn't do a full allmodconfig build between every pull and before pushing my work out. So I only noticed later as I was doing my full build. Brown-paper-bag-by: Linus Torvalds <[email protected]> Fixes: 71a7507afbc3 Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Signed-off-by: Linus Torvalds <[email protected]>
2022-12-16dt-bindings: drop redundant part of title (manual)Krzysztof Kozlowski25-27/+25
The Devicetree bindings document does not have to say in the title that it is a "Devicetree binding" or a "schema", but instead just describe the hardware. Manual updates to various binding titles, including capitalizing them. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Reviewed-by: Jonathan Cameron <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Acked-by: Dmitry Torokhov <[email protected]> # input Acked-by: Mark Brown <[email protected]> Acked-by: Viresh Kumar <[email protected]> # opp Link: https://lore.kernel.org/r/[email protected] [robh: add trivial-devices.yaml and net/can/microchip,mcp251xfd.yaml] Signed-off-by: Rob Herring <[email protected]>
2022-12-16Merge tag 'for-netdev' of ↵Jakub Kicinski9-36/+119
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2022-12-16 We've added 7 non-merge commits during the last 2 day(s) which contain a total of 9 files changed, 119 insertions(+), 36 deletions(-). 1) Fix for recent syzkaller XDP dispatcher update splat, from Jiri Olsa. 2) Fix BPF program refcount leak in LSM attachment failure path, from Milan Landaverde. 3) Fix BPF program type in map compatibility check for fext, from Toke Høiland-Jørgensen. 4) Fix a BPF selftest compilation error under !CONFIG_SMP config, from Yonghong Song. 5) Fix CI to enable CONFIG_FUNCTION_ERROR_INJECTION after it got changed to a prompt, from Song Liu. 6) Various BPF documentation fixes for socket local storage, from Donald Hunter. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: Add a test for using a cpumap from an freplace-to-XDP program bpf: Resolve fext program type when checking map compatibility bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func bpf: prevent leak of lsm program after failed attach selftests/bpf: Select CONFIG_FUNCTION_ERROR_INJECTION selftests/bpf: Fix a selftest compilation error with CONFIG_SMP=n docs/bpf: Reword docs for BPF_MAP_TYPE_SK_STORAGE ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-12-16dt-bindings: clock: drop redundant part of titleKrzysztof Kozlowski20-20/+20
The Devicetree bindings document does not have to say in the title that it is a "Devicetree binding", but instead just describe the hardware. Drop "Devicetree bindings" in various forms: find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -exec sed -i -e 's/^title: [dD]evice[ -]\?[tT]ree [cC]lock [bB]indings\? for \([tT]he \)\?\(.*\)$/title: \u\2 Clock Controller/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -exec sed -i -e 's/^title: [cC]lock [bB]indings\? for \([tT]he \)\?\(.*\)$/title: \u\2 Clock Controller/' {} \; Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Reviewed-by: Jonathan Cameron <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: drop redundant part of title (beginning)Krzysztof Kozlowski53-53/+53
The Devicetree bindings document does not have to say in the title that it is a "Devicetree binding", but instead just describe the hardware. Drop beginning "Devicetree bindings" in various forms: find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -exec sed -i -e 's/^title: [dD]evice[ -]\?[tT]ree [bB]indings\? for \([tT]he \)\?\(.*\)$/title: \u\2/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -exec sed -i -e 's/^title: [bB]indings\? for \([tT]he \)\?\(.*\)$/title: \u\2/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -exec sed -i -e 's/^title: [dD][tT] [bB]indings\? for \([tT]he \)\?\(.*\)$/title: \u\2/' {} \; Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Reviewed-by: Jonathan Cameron <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Acked-by: Dmitry Torokhov <[email protected]> # input Acked-by: Mark Brown <[email protected]> Acked-by: Sebastian Reichel <[email protected]> # power Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: drop redundant part of title (end, part three)Krzysztof Kozlowski223-223/+223
The Devicetree bindings document does not have to say in the title that it is a "binding", but instead just describe the hardware. Drop trailing "bindings" in various forms (also with trailing full stop): find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [bB]indings\?\.\?$/title: \1/' {} \; Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Acked-by: Matti Vaittinen <[email protected]> # ROHM Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Acked-by: Dmitry Torokhov <[email protected]> # input Acked-by: Mark Brown <[email protected]> Acked-by: Hans Verkuil <[email protected]> # media Acked-by: Sebastian Reichel <[email protected]> # power Acked-by: Viresh Kumar <[email protected]> # cpufreq Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: drop redundant part of title (end, part two)Krzysztof Kozlowski15-15/+15
The Devicetree bindings document does not have to say in the title that it is a "binding", but instead just describe the hardware. Drop trailing "Node|Tree|Generic bindings" in various forms (also with trailing full stop): find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [nN]ode [bB]indings\?\.\?$/title: \1/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [tT]ree [bB]indings\?\.\?$/title: \1/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [gG]eneric [bB]indings\?\.\?$/title: \1/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [bB]indings\? description\.\?$/title: \1/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [bB]indings\? document\.\?$/title: \1/' {} \; Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Reviewed-by: Jonathan Cameron <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Acked-by: Vinod Koul <[email protected]> # phy Acked-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: drop redundant part of title (end)Krzysztof Kozlowski120-120/+120
The Devicetree bindings document does not have to say in the title that it is a "Devicetree binding", but instead just describe the hardware. Drop trailing "Devicetree bindings" in various forms (also with trailing full stop): find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [dD]evice[ -]\?[tT]ree [bB]indings\?\.\?$/title: \1/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [dD]evice[ -]\?[nN]ode [bB]indings\?\.\?$/title: \1/' {} \; find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: \(.*\) [dD][tT] [bB]indings\?\.\?$/title: \1/' {} \; Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> # IIO Reviewed-by: Jonathan Cameron <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Acked-by: Dmitry Torokhov <[email protected]> # input Acked-by: Mark Brown <[email protected]> Acked-by: Hans Verkuil <[email protected]> # media Acked-by: Sebastian Reichel <[email protected]> # power Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: clock: st,stm32mp1-rcc: add proper titleKrzysztof Kozlowski1-1/+1
Add device name in the title, because "Reset Clock Controller" sounds too generic. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: memory-controllers: ti,gpmc-child: drop redundant part of titleKrzysztof Kozlowski1-1/+1
The Devicetree bindings document does not have to say in the title that it is a "Devicetree binding", but instead just describe the hardware. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: drop redundant part of title of shared bindingsKrzysztof Kozlowski21-21/+21
The Devicetree bindings document does not have to say in the title that it is a "binding", but instead just describe the hardware. For shared (re-usable) schemas, name them all as "common properties". Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Guenter Roeck <[email protected]> # watchdog Acked-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> # IIO Acked-by: Miquel Raynal <[email protected]> Acked-by: Ulf Hansson <[email protected]> # MMC Acked-by: Stephen Boyd <[email protected]> # clk Acked-by: Vinod Koul <[email protected]> # dma Acked-by: Mark Brown <[email protected]> Acked-by: Hans Verkuil <[email protected]> # media Acked-by: Sebastian Reichel <[email protected]> # power Acked-by: Viresh Kumar <[email protected]> # opp Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: watchdog: gpio: Convert bindings to YAMLMarek Vasut2-28/+55
Convert the gpio-wdt bindings from text to YAML ones, to permit DT validation. Reviewed-by: Rob Herring <[email protected]> Signed-off-by: Marek Vasut <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] [robh: add missing 'always-running'] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: imx6q-pcie: Handle more resets on legacy platformsMarek Vasut1-4/+31
The i.MX6 and i.MX7D does not use block controller to toggle PCIe reset, hence the PCIe DT description contains three reset entries on these older SoCs. Add this exception into the binding document. Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Marek Vasut <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: imx6q-pcie: Handle various PD configurationsMarek Vasut1-0/+32
The i.MX SoCs have various power domain configurations routed into the PCIe IP. MX6SX is the only one which contains 2 domains and also uses power-domain-names. MX6QDL do not use any domains. All the rest uses one domain and does not use power-domain-names anymore. Document all those configurations in the DT binding document. Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Marek Vasut <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: imx6q-pcie: Handle various clock configurationsMarek Vasut1-3/+34
The i.MX SoCs have various clock configurations routed into the PCIe IP, the list of clock is below. Document all those configurations in the DT binding document. All SoCs: pcie, pcie_bus 6QDL, 7D: + pcie_phy 6SX: + pcie_phy pcie_inbound_axi 8MQ: + pcie_phy pcie_aux 8MM, 8MP: + pcie_aux Reviewed-by: Rob Herring <[email protected]> Acked-by: Alexander Stein <[email protected]> Signed-off-by: Marek Vasut <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: hwmon: ntc-thermistor: drop Naveen Krishna Chatradhi from ↵Krzysztof Kozlowski1-1/+0
maintainers Emails to Naveen Krishna Chatradhi bounce ("550 5.1.1 Recipient address rejected: User unknown"). Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains propertyMarek Vasut1-1/+14
The power-domains property is mandatory on i.MX8M Mini, Nano, Plus and i.MX6SX, i.MX6SL. Document the property and mark it as required on the aforementioned variants of the IP, present in those SoCs. Signed-off-by: Marek Vasut <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Liu Ying <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: vendor-prefixes: sort entries alphabeticallyKrzysztof Kozlowski1-32/+32
Sort entries alphabetically. This was a semi manual job with help of: cat Documentation/devicetree/bindings/vendor-prefixes.yaml | grep '":' > old cat old | sort > new diff -ubB old new Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16dt-bindings: usb: tegra-xusb: Remove path referencesThierry Reding4-18/+6
Unresolved path references are now flagged as errors when checking the device tree binding examples, so convert them into label references. Reported-by: Conor Dooley <[email protected]> Suggested-by: Rob Herring <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Acked-by: Rob Herring <[email protected]> Tested-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16of: fdt: Honor CONFIG_CMDLINE* even without /chosen nodeAlexander Sverdlin1-20/+20
I do not read a strict requirement on /chosen node in either ePAPR or in Documentation/devicetree. Help text for CONFIG_CMDLINE and CONFIG_CMDLINE_EXTEND doesn't make their behavior explicitly dependent on the presence of /chosen or the presense of /chosen/bootargs. However the early check for /chosen and bailing out in early_init_dt_scan_chosen() skips CONFIG_CMDLINE handling which is not really related to /chosen node or the particular method of passing cmdline from bootloader. This leads to counterintuitive combinations (assuming CONFIG_CMDLINE_EXTEND=y): a) bootargs="foo", CONFIG_CMDLINE="bar" => cmdline=="foo bar" b) /chosen missing, CONFIG_CMDLINE="bar" => cmdline=="" c) bootargs="", CONFIG_CMDLINE="bar" => cmdline==" bar" Move CONFIG_CMDLINE handling outside of early_init_dt_scan_chosen() so that cases b and c above result in the same cmdline. Signed-off-by: Alexander Sverdlin <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring <[email protected]>
2022-12-16block: don't clear REQ_ALLOC_CACHE for non-polled requestsJens Axboe1-2/+1
Since commit: b99182c501c3 ("bio: add pcpu caching for non-polling bio_put") we support bio caching for IRQ based IO as well, hence there's no need to manually clear REQ_ALLOC_CACHE if we disable polling on a request. Reviewed-by: Keith Busch <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2022-12-16genirq/msi: Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when no ↵Thomas Gleixner1-2/+2
domain is present On architectures such as s390 that do not use irq domains for MSI, returning 0 as the maximum MSI index is a bit counter-productive, as it indicates that no MSI can be allocated. Bad idea. Instead, return the maximum we're willing to support in the MSI backing store (MSI_XA_DOMAIN_SIZE), and let the arch code do its usual thing. Thanks to Matthew Rosato for fixing the fix. Reported-by: Guenter Roeck <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> [maz: commit message] Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/87fsdgzpqs.ffs@tglx
2022-12-16genirq/msi: Check for the presence of an irq domain when validating msi_ctrlMarc Zyngier1-1/+2
For architectures such as s390 and powerpc that do not use irq domains for MSIs, dev->msi.domain is always NULL, so the per-device, per-bus MSI domain is also guaranteed to be NULL. So checking one without checking the other is bound to result in a splat, followed by a memory leak as we don't free the MSI descriptors. Add the missing check. Reported-by: Matthew Rosato <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-12-16libperf: Fix install_pkgconfig targetAlexander Gordeev1-1/+1
Commit 47e02b94a4c98dcc ("tools lib perf: Add dependency test to install_headers") misses the notion of $(DESTDIR_SQ) for install_pkgconfig target, which leads to error: install: cannot create regular file '/usr/lib64/pkgconfig/libperf.pc': Permission denied make: *** [Makefile:210: install_pkgconfig] Error 1 Signed-off-by: Alexander Gordeev <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Nicolas Schier <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Tom Rix <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lore.kernel.org/lkml/Y5w/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-12-16powerpc/code-patching: Fix oops with DEBUG_VM enabledMichael Ellerman1-3/+7
Nathan reported that the new per-cpu mm patching oopses if DEBUG_VM is enabled: ------------[ cut here ]------------ kernel BUG at arch/powerpc/mm/pgtable.c:333! Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc2+ #1 Hardware name: IBM PowerNV (emulated by qemu) POWER9 0x4e1200 opal:v7.0 PowerNV ... NIP assert_pte_locked+0x180/0x1a0 LR assert_pte_locked+0x170/0x1a0 Call Trace: 0x60000000 (unreliable) patch_instruction+0x618/0x6d0 arch_prepare_kprobe+0xfc/0x2d0 register_kprobe+0x520/0x7c0 arch_init_kprobes+0x28/0x3c init_kprobes+0x108/0x184 do_one_initcall+0x60/0x2e0 kernel_init_freeable+0x1f0/0x3e0 kernel_init+0x34/0x1d0 ret_from_kernel_thread+0x5c/0x64 It's caused by the assert_spin_locked() failing in assert_pte_locked(). The assert fails because the PTE was unlocked in text_area_cpu_up_mm(), and never relocked. The PTE page shouldn't be freed, the patching_mm is only used for patching on this CPU, only that single PTE is ever mapped, and it's only unmapped at CPU offline. In fact assert_pte_locked() has a special case to ignore init_mm entirely, and the patching_mm is more-or-less like init_mm, so possibly the check could be skipped for patching_mm too. But for now be conservative, and use the proper PTE accessors at patching time, so that the PTE lock is held while the PTE is used. That also avoids the warning in assert_pte_locked(). With that it's no longer necessary to save the PTE in cpu_patching_context for the mm_patch_enabled() case. Fixes: c28c15b6d28a ("powerpc/code-patching: Use temporary mm for Radix MMU") Reported-by: Nathan Chancellor <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-12-16Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo10549-181909/+517874
To resolve a trivial merge conflict with c302378bc157f6a7 ("libbpf: Hashmap interface update to allow both long and void* keys/values"), where a function present upstream was removed in the perf tools development tree. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2022-12-16Merge tag 'driver-core-6.2-rc1' of ↵Linus Torvalds92-505/+499
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core and kernfs changes for 6.2-rc1. The "big" change in here is the addition of a new macro, container_of_const() that will preserve the "const-ness" of a pointer passed into it. The "problem" of the current container_of() macro is that if you pass in a "const *", out of it can comes a non-const pointer unless you specifically ask for it. For many usages, we want to preserve the "const" attribute by using the same call. For a specific example, this series changes the kobj_to_dev() macro to use it, allowing it to be used no matter what the const value is. This prevents every subsystem from having to declare 2 different individual macros (i.e. kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce the const value at build time, which having 2 macros would not do either. The driver for all of this have been discussions with the Rust kernel developers as to how to properly mark driver core, and kobject, objects as being "non-mutable". The changes to the kobject and driver core in this pull request are the result of that, as there are lots of paths where kobjects and device pointers are not modified at all, so marking them as "const" allows the compiler to enforce this. So, a nice side affect of the Rust development effort has been already to clean up the driver core code to be more obvious about object rules. All of this has been bike-shedded in quite a lot of detail on lkml with different names and implementations resulting in the tiny version we have in here, much better than my original proposal. Lots of subsystem maintainers have acked the changes as well. Other than this change, included in here are smaller stuff like: - kernfs fixes and updates to handle lock contention better - vmlinux.lds.h fixes and updates - sysfs and debugfs documentation updates - device property updates All of these have been in the linux-next tree for quite a while with no problems" * tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits) device property: Fix documentation for fwnode_get_next_parent() firmware_loader: fix up to_fw_sysfs() to preserve const usb.h: take advantage of container_of_const() device.h: move kobj_to_dev() to use container_of_const() container_of: add container_of_const() that preserves const-ness of the pointer driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion. driver core: fix up missed scsi/cxlflash class.devnode() conversion. driver core: fix up some missing class.devnode() conversions. driver core: make struct class.devnode() take a const * driver core: make struct class.dev_uevent() take a const * cacheinfo: Remove of_node_put() for fw_token device property: Add a blank line in Kconfig of tests device property: Rename goto label to be more precise device property: Move PROPERTY_ENTRY_BOOL() a bit down device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*() kernfs: fix all kernel-doc warnings and multiple typos driver core: pass a const * into of_device_uevent() kobject: kset_uevent_ops: make name() callback take a const * kobject: kset_uevent_ops: make filter() callback take a const * kobject: make kobject_namespace take a const * ...
2022-12-16Merge tag 'char-misc-6.2-rc1' of ↵Linus Torvalds463-3059/+18054
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc and other driver subsystem changes for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of new driver development and minor fixes. Highlights include: - fastrpc driver updates - iio new drivers and updates - habanalabs driver updates for new hardware and features - slimbus driver updates - speakup module parameters added to aid in boot time configuration - i2c probe_new conversions for lots of different drivers - other small driver fixes and additions One semi-interesting change in here is the increase of the number of misc dynamic minors available to 1048448 to handle new huge-cpu systems. All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits) extcon: usbc-tusb320: Convert to i2c's .probe_new() extcon: rt8973: Convert to i2c's .probe_new() extcon: fsa9480: Convert to i2c's .probe_new() extcon: max77843: Replace irqchip mask_invert with unmask_base chardev: fix error handling in cdev_device_add() mcb: mcb-parse: fix error handing in chameleon_parse_gdd() drivers: mcb: fix resource leak in mcb_probe() coresight: etm4x: fix repeated words in comments coresight: cti: Fix null pointer error on CTI init before ETM coresight: trbe: remove cpuhp instance node before remove cpuhp state counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update misc: fastrpc: Add dma_mask to fastrpc_channel_ctx misc: fastrpc: Add mmap request assigning for static PD pool misc: fastrpc: Safekeep mmaps on interrupted invoke misc: fastrpc: Add support for audiopd misc: fastrpc: Rework fastrpc_req_munmap misc: fastrpc: Use fastrpc_map_put in fastrpc_map_create on fail misc: fastrpc: Add fastrpc_remote_heap_alloc misc: fastrpc: Add reserved mem support misc: fastrpc: Rename audio protection domain to root ...
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