- 16 Dec, 2022 12 commits
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Linus Torvalds authored
Merge tag 'perf-tools-for-v6.2-1-2022-12-16' of 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 ...
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Linus Torvalds authored
This was a mismerge of a semantic conflict in my merge of the driver core updates, where commit ff62b8e6 ("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 8bf48897 ("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 <torvalds@linux-foundation.org> Fixes: 71a7507a Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreSigned-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexander Gordeev authored
Commit 47e02b94 ("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 <agordeev@linux.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nicolas Schier <nicolas@fjasle.eu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Rix <trix@redhat.com> Cc: bpf@vger.kernel.org Cc: llvm@lists.linux.dev Link: http://lore.kernel.org/lkml/Y5w/cWKyb8vpNMfA@li-4a3a4a4c-28e5-11b2-a85c-a8d192c6f089.ibm.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo authored
To resolve a trivial merge conflict with c302378b ("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 <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
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 * ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
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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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial driver updates from Greg KH: "Here is the "big" set of tty/serial driver changes for 6.2-rc1. As in previous kernel releases, nothing big here at all, just some small incremental serial/tty layer cleanups and some individual driver additions and fixes. Highlights are: - serial helper macros from Jiri Slaby to reduce the amount of duplicated code in serial drivers - api cleanups and consolidations from Ilpo Järvinen in lots of serial drivers - the usual set of n_gsm fixes from Daniel Starke as that code gets exercised more - TIOCSTI is finally able to be disabled if requested (security hardening feature from Kees Cook) - fsl_lpuart driver fixes and features added - other small serial driver additions and fixes All of these have been in linux-next for a while with no reported problems" * tag 'tty-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (97 commits) serial: atmel: don't stop the transmitter when doing PIO serial: atmel: cleanup atmel_start+stop_tx() tty: serial: fsl_lpuart: switch to new dmaengine_terminate_* API serial: sunsab: Fix error handling in sunsab_init() serial: altera_uart: fix locking in polling mode serial: pch: Fix PCI device refcount leak in pch_request_dma() tty: serial: fsl_lpuart: Use pm_ptr() to avoid need to make pm __maybe_unused tty: serial: fsl_lpuart: Add runtime pm support tty: serial: fsl_lpuart: enable wakeup source for lpuart serdev: Replace poll loop by readx_poll_timeout() macro tty: synclink_gt: unwind actions in error path of net device open serial: stm32: move dma_request_chan() before clk_prepare_enable() dt-bindings: serial: xlnx,opb-uartlite: Drop 'contains' from 'xlnx,use-parity' serial: pl011: Do not clear RX FIFO & RX interrupt in unthrottle. serial: amba-pl011: avoid SBSA UART accessing DMACR register tty: serial: altera_jtaguart: remove struct altera_jtaguart tty: serial: altera_jtaguart: use uart_port::read_status_mask tty: serial: altera_jtaguart: remove unused altera_jtaguart::sigs tty: serial: altera_jtaguart: remove flag from altera_jtaguart_rx_chars() n_tty: Rename tail to old_tail in n_tty_read() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging driver updates from Greg KH: "Here is the large set of staging driver changes for 6.2-rc1. Another round of cleanups for staging drivers with no big additions. Overall more lines were removed than added, always a nice sign, with nothing happening in here other than general coding style cleanups and minor fixes in the drivers. Full, boring, details are in the shortlog. All of these have been in linux-next for a while with no reported problems" * tag 'staging-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (253 commits) vme: Use root_device_register() not underlined version staging: rtl8192e: Fix spelling mistake "ContryIE" -> "CountryIE" vme: Fix error not catched in fake_init() staging: vme_user: remove multiple blank lines staging: r8188eu: use subtype helper in rtw_check_bcn_info staging: r8188eu: use subtype helpers in collect_bss_info staging: r8188eu: remove unused da parameter staging: r8188eu: merge two probereq_p2p functions staging: r8188eu: simplify err handling for unknown station staging: r8188eu: handle the non-ap case first staging: r8188eu: move bBusyTraffic update staging: r8188eu: read reason code from ieee80211_mgmt staging: r8188eu: use ieee80211_mgmt to parse addresses staging: r8188eu: remove a variable staging: r8188eu: simplify error handling for missing station staging: r8188eu: stop beacon processing if kmalloc fails staging: r8188eu: exit if beacon is not from our bss staging: r8188eu: simplify update_sta_support_rate params staging: r8188eu: use ie buffer in update_beacon_info staging: r8188eu: pass only ies to process_p2p_ps_ie ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB and Thunderbolt driver updates from Greg KH: "Here is the large set of USB and Thunderbolt driver changes for 6.2-rc1. Overall, thanks to the removal of a driver, more lines were removed than added, a nice change. Highlights include: - removal of the sisusbvga driver that was not used by anyone anymore - minor thunderbolt driver changes and tweaks - chipidea driver updates - usual set of typec driver features and hardware support added - musb minor driver fixes - fotg210 driver fixes, bringing that hardware back from the "dead" - minor dwc3 driver updates - addition, and then removal, of a list.h helper function for many USB and other subsystem drivers, that ended up breaking the build. That will come back for 6.3-rc1, it missed this merge window. - usual xhci updates and enhancements - usb-serial driver updates and support for new devices - other minor USB driver updates All of these have been in linux-next for a while with no reported problems" * tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (153 commits) usb: gadget: uvc: Rename bmInterfaceFlags -> bmInterlaceFlags usb: dwc2: power on/off phy for peripheral mode in dual-role mode usb: dwc2: disable lpm feature on Rockchip SoCs dt-bindings: usb: mtk-xhci: add support for mt7986 usb: dwc3: core: defer probe on ulpi_read_id timeout usb: ulpi: defer ulpi_register on ulpi_read_id timeout usb: misc: onboard_usb_hub: add Genesys Logic GL850G hub support dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller dt-bindings: vendor-prefixes: add Genesys Logic usb: fotg210-udc: fix potential memory leak in fotg210_udc_probe() usb: typec: tipd: Set mode of operation for USB Type-C connector usb: gadget: udc: drop obsolete dependencies on COMPILE_TEST usb: musb: remove extra check in musb_gadget_vbus_draw usb: gadget: uvc: Prevent buffer overflow in setup handler usb: dwc3: qcom: Fix memory leak in dwc3_qcom_interconnect_init usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe() usb: storage: Add check for kcalloc USB: sisusbvga: use module_usb_driver() USB: sisusbvga: rename sisusb.c to sisusbvga.c USB: sisusbvga: remove console support ...
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfatLinus Torvalds authored
Pull exfat update from Namjae Jeon: - simplify and remove some redundant directory entry code - optimize the size of exfat_entry_set_cache and its allocation policy - improve the performance for creating files and directories * tag 'exfat-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: reuse exfat_find_location() to simplify exfat_get_dentry_set() exfat: fix overflow in sector and cluster conversion exfat: remove i_size_write() from __exfat_truncate() exfat: remove argument 'size' from exfat_truncate() exfat: remove unnecessary arguments from exfat_find_dir_entry() exfat: remove unneeded codes from __exfat_rename() exfat: remove call ilog2() from exfat_readdir() exfat: replace magic numbers with Macros exfat: rename exfat_free_dentry_set() to exfat_put_dentry_set() exfat: move exfat_entry_set_cache from heap to stack exfat: support dynamic allocate bh for exfat_entry_set_cache exfat: reduce the size of exfat_entry_set_cache exfat: hint the empty entry which at the end of cluster chain exfat: simplify empty entry hint
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull writeback updates from Jens Axboe: - Sanity check adding freed inodes to lists (Jan) - Removal of an old unused define (Miaohe) * tag 'for-6.2/writeback-2022-12-12' of git://git.kernel.dk/linux: writeback: remove obsolete macro EXPIRE_DIRTY_ATIME writeback: Add asserts for adding freed inode to lists
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds authored
Pull tracing updates from Steven Rostedt: - Add options to the osnoise tracer: - 'panic_on_stop' option that panics the kernel if osnoise is greater than some user defined threshold. - 'preempt' option, to test noise while preemption is disabled - 'irq' option, to test noise when interrupts are disabled - Add .percent and .graph suffix to histograms to give different outputs - Add nohitcount to disable showing hitcount in histogram output - Add new __cpumask() to trace event fields to annotate that a unsigned long array is a cpumask to user space and should be treated as one. - Add trace_trigger kernel command line parameter to enable trace event triggers at boot up. Useful to trace stack traces, disable tracing and take snapshots. - Fix x86/kmmio mmio tracer to work with the updates to lockdep - Unify the panic and die notifiers - Add back ftrace_expect reference that is used to extract more information in the ftrace_bug() code. - Have trigger filter parsing errors show up in the tracing error log. - Updated MAINTAINERS file to add kernel tracing mailing list and patchwork info - Use IDA to keep track of event type numbers. - And minor fixes and clean ups * tag 'trace-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (44 commits) tracing: Fix cpumask() example typo tracing: Improve panic/die notifiers ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels tracing: Do not synchronize freeing of trigger filter on boot up tracing: Remove pointer (asterisk) and brackets from cpumask_t field tracing: Have trigger filter parsing errors show up in error_log x86/mm/kmmio: Remove redundant preempt_disable() tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line Documentation/osnoise: Add osnoise/options documentation tracing/osnoise: Add preempt and/or irq disabled options tracing/osnoise: Add PANIC_ON_STOP option Documentation/osnoise: Escape underscore of NO_ prefix tracing: Fix some checker warnings tracing/osnoise: Make osnoise_options static tracing: remove unnecessary trace_trigger ifdef ring-buffer: Handle resize in early boot up tracing/hist: Fix issue of losting command info in error_log tracing: Fix issue of missing one synthetic field tracing/hist: Fix out-of-bound write on 'action_data.var_ref_idx' tracing/hist: Fix wrong return value in parse_action_params() ...
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- 15 Dec, 2022 11 commits
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs client updates from Steve French: - SMB3.1.1 POSIX Extensions fixes - remove use of generic_writepages() and ->cifs_writepage(), in favor of ->cifs_writepages() and ->migrate_folio() - memory management fixes - mount parm parsing fixes - minor cleanup fixes * tag '6.2-rc-smb3-client-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: cifs: Remove duplicated include in cifsglob.h cifs: fix oops during encryption cifs: print warning when conflicting soft vs. hard mount options specified cifs: fix missing display of three mount options cifs: fix various whitespace errors in headers cifs: minor cleanup of some headers cifs: skip alloc when request has no pages cifs: remove ->writepage cifs: stop using generic_writepages cifs: wire up >migrate_folio cifs: Parse owner/group for stat in smb311 posix extensions cifs: Add "extbuf" and "extbuflen" args to smb2_compound_op() Fix path in cifs/usage.rst
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c updates from Wolfram Sang: "Core got a new helper 'i2c_client_get_device_id()', designware got some bigger updates, the rest is driver updates all over the place" * tag 'i2c-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (41 commits) i2c: ismt: Fix an out-of-bounds bug in ismt_access() i2c: mux: reg: check return value after calling platform_get_resource() i2c: xiic: Make sure to disable clock on .remove() i2c: hisi: Add support to get clock frequency from clock i2c: pxa-pci: fix missing pci_disable_device() on error in ce4100_i2c_probe i2c: slave-eeprom: Convert to i2c's .probe_new() i2c: mux: pca954x: Convert to i2c's .probe_new() drivers/i2c: use simple i2c probe i2c: mux: pca9541: switch to using .probe_new i2c: gpio: Fix potential unused warning for 'i2c_gpio_dt_ids' i2c: qcom-geni: add support for I2C Master Hub variant i2c: qcom-geni: add desc struct to prepare support for I2C Master Hub variant soc: qcom: geni-se: add support for I2C Master Hub wrapper variant soc: qcom: geni-se: add desc struct to specify clocks from device match data dt-bindings: i2c: qcom-geni: document I2C Master Hub serial I2C engine dt-bindings: qcom: geni-se: document I2C Master Hub wrapper variant dt-bindings: i2c: renesas,riic: Document RZ/Five SoC i2c: tegra: Set ACPI node as primary fwnode i2c: smbus: add DDR support for SPD i2c: /pasemi: PASemi I2C controller IRQ enablement ...
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https://github.com/awilliam/linux-vfioLinus Torvalds authored
Pull VFIO updates from Alex Williamson: - Replace deprecated git://github.com link in MAINTAINERS (Palmer Dabbelt) - Simplify vfio/mlx5 with module_pci_driver() helper (Shang XiaoJing) - Drop unnecessary buffer from ACPI call (Rafael Mendonca) - Correct latent missing include issue in iova-bitmap and fix support for unaligned bitmaps. Follow-up with better fix through refactor (Joao Martins) - Rework ccw mdev driver to split private data from parent structure, better aligning with the mdev lifecycle and allowing us to remove a temporary workaround (Eric Farman) - Add an interface to get an estimated migration data size for a device, allowing userspace to make informed decisions, ex. more accurately predicting VM downtime (Yishai Hadas) - Fix minor typo in vfio/mlx5 array declaration (Yishai Hadas) - Simplify module and Kconfig through consolidating SPAPR/EEH code and config options and folding virqfd module into main vfio module (Jason Gunthorpe) - Fix error path from device_register() across all vfio mdev and sample drivers (Alex Williamson) - Define migration pre-copy interface and implement for vfio/mlx5 devices, allowing portions of the device state to be saved while the device continues operation, towards reducing the stop-copy state size (Jason Gunthorpe, Yishai Hadas, Shay Drory) - Implement pre-copy for hisi_acc devices (Shameer Kolothum) - Fixes to mdpy mdev driver remove path and error path on probe (Shang XiaoJing) - vfio/mlx5 fixes for incorrect return after copy_to_user() fault and incorrect buffer freeing (Dan Carpenter) * tag 'vfio-v6.2-rc1' of https://github.com/awilliam/linux-vfio: (42 commits) vfio/mlx5: error pointer dereference in error handling vfio/mlx5: fix error code in mlx5vf_precopy_ioctl() samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() hisi_acc_vfio_pci: Enable PRE_COPY flag hisi_acc_vfio_pci: Move the dev compatibility tests for early check hisi_acc_vfio_pci: Introduce support for PRE_COPY state transitions hisi_acc_vfio_pci: Add support for precopy IOCTL vfio/mlx5: Enable MIGRATION_PRE_COPY flag vfio/mlx5: Fallback to STOP_COPY upon specific PRE_COPY error vfio/mlx5: Introduce multiple loads vfio/mlx5: Consider temporary end of stream as part of PRE_COPY vfio/mlx5: Introduce vfio precopy ioctl implementation vfio/mlx5: Introduce SW headers for migration states vfio/mlx5: Introduce device transitions of PRE_COPY vfio/mlx5: Refactor to use queue based data chunks vfio/mlx5: Refactor migration file state vfio/mlx5: Refactor MKEY usage vfio/mlx5: Refactor PD usage vfio/mlx5: Enforce a single SAVE command at a time vfio: Extend the device migration protocol with PRE_COPY ...
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm updates from Paolo Bonzini: "ARM64: - Enable the per-vcpu dirty-ring tracking mechanism, together with an option to keep the good old dirty log around for pages that are dirtied by something other than a vcpu. - Switch to the relaxed parallel fault handling, using RCU to delay page table reclaim and giving better performance under load. - Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping option, which multi-process VMMs such as crosvm rely on (see merge commit 382b5b87: "Fix a number of issues with MTE, such as races on the tags being initialised vs the PG_mte_tagged flag as well as the lack of support for VM_SHARED when KVM is involved. Patches from Catalin Marinas and Peter Collingbourne"). - Merge the pKVM shadow vcpu state tracking that allows the hypervisor to have its own view of a vcpu, keeping that state private. - Add support for the PMUv3p5 architecture revision, bringing support for 64bit counters on systems that support it, and fix the no-quite-compliant CHAIN-ed counter support for the machines that actually exist out there. - Fix a handful of minor issues around 52bit VA/PA support (64kB pages only) as a prefix of the oncoming support for 4kB and 16kB pages. - Pick a small set of documentation and spelling fixes, because no good merge window would be complete without those. s390: - Second batch of the lazy destroy patches - First batch of KVM changes for kernel virtual != physical address support - Removal of a unused function x86: - Allow compiling out SMM support - Cleanup and documentation of SMM state save area format - Preserve interrupt shadow in SMM state save area - Respond to generic signals during slow page faults - Fixes and optimizations for the non-executable huge page errata fix. - Reprogram all performance counters on PMU filter change - Cleanups to Hyper-V emulation and tests - Process Hyper-V TLB flushes from a nested guest (i.e. from a L2 guest running on top of a L1 Hyper-V hypervisor) - Advertise several new Intel features - x86 Xen-for-KVM: - Allow the Xen runstate information to cross a page boundary - Allow XEN_RUNSTATE_UPDATE flag behaviour to be configured - Add support for 32-bit guests in SCHEDOP_poll - Notable x86 fixes and cleanups: - One-off fixes for various emulation flows (SGX, VMXON, NRIPS=0). - Reinstate IBPB on emulated VM-Exit that was incorrectly dropped a few years back when eliminating unnecessary barriers when switching between vmcs01 and vmcs02. - Clean up vmread_error_trampoline() to make it more obvious that params must be passed on the stack, even for x86-64. - Let userspace set all supported bits in MSR_IA32_FEAT_CTL irrespective of the current guest CPUID. - Fudge around a race with TSC refinement that results in KVM incorrectly thinking a guest needs TSC scaling when running on a CPU with a constant TSC, but no hardware-enumerated TSC frequency. - Advertise (on AMD) that the SMM_CTL MSR is not supported - Remove unnecessary exports Generic: - Support for responding to signals during page faults; introduces new FOLL_INTERRUPTIBLE flag that was reviewed by mm folks Selftests: - Fix an inverted check in the access tracking perf test, and restore support for asserting that there aren't too many idle pages when running on bare metal. - Fix build errors that occur in certain setups (unsure exactly what is unique about the problematic setup) due to glibc overriding static_assert() to a variant that requires a custom message. - Introduce actual atomics for clear/set_bit() in selftests - Add support for pinning vCPUs in dirty_log_perf_test. - Rename the so called "perf_util" framework to "memstress". - Add a lightweight psuedo RNG for guest use, and use it to randomize the access pattern and write vs. read percentage in the memstress tests. - Add a common ucall implementation; code dedup and pre-work for running SEV (and beyond) guests in selftests. - Provide a common constructor and arch hook, which will eventually be used by x86 to automatically select the right hypercall (AMD vs. Intel). - A bunch of added/enabled/fixed selftests for ARM64, covering memslots, breakpoints, stage-2 faults and access tracking. - x86-specific selftest changes: - Clean up x86's page table management. - Clean up and enhance the "smaller maxphyaddr" test, and add a related test to cover generic emulation failure. - Clean up the nEPT support checks. - Add X86_PROPERTY_* framework to retrieve multi-bit CPUID values. - Fix an ordering issue in the AMX test introduced by recent conversions to use kvm_cpu_has(), and harden the code to guard against similar bugs in the future. Anything that tiggers caching of KVM's supported CPUID, kvm_cpu_has() in this case, effectively hides opt-in XSAVE features if the caching occurs before the test opts in via prctl(). Documentation: - Remove deleted ioctls from documentation - Clean up the docs for the x86 MSR filter. - Various fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (361 commits) KVM: x86: Add proper ReST tables for userspace MSR exits/flags KVM: selftests: Allocate ucall pool from MEM_REGION_DATA KVM: arm64: selftests: Align VA space allocator with TTBR0 KVM: arm64: Fix benign bug with incorrect use of VA_BITS KVM: arm64: PMU: Fix period computation for 64bit counters with 32bit overflow KVM: x86: Advertise that the SMM_CTL MSR is not supported KVM: x86: remove unnecessary exports KVM: selftests: Fix spelling mistake "probabalistic" -> "probabilistic" tools: KVM: selftests: Convert clear/set_bit() to actual atomics tools: Drop "atomic_" prefix from atomic test_and_set_bit() tools: Drop conflicting non-atomic test_and_{clear,set}_bit() helpers KVM: selftests: Use non-atomic clear/set bit helpers in KVM tests perf tools: Use dedicated non-atomic clear/set bit helpers tools: Take @bit as an "unsigned long" in {clear,set}_bit() helpers KVM: arm64: selftests: Enable single-step without a "full" ucall() KVM: x86: fix APICv/x2AVIC disabled when vm reboot by itself KVM: Remove stale comment about KVM_REQ_UNHALT KVM: Add missing arch for KVM_CREATE_DEVICE and KVM_{SET,GET}_DEVICE_ATTR KVM: Reference to kvm_userspace_memory_region in doc and comments KVM: Delete all references to removed KVM_SET_MEMORY_ALIAS ioctl ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull more ACPI updates from Rafael Wysocki: "These fix an AML byte code execution issue in ACPICA and two issues in the ACPI EC driver which requires rearranging ACPICA code. Specifics: - Avoid trying to resolve operands in AML when there are none (Amadeusz Sławiński) - Fix indentation in include/acpi/acpixf.h to help applying patches from the upstream ACPICA git (Hans de Goede) - Make it possible to install an address space handler without evaluating _REG for Operation Regions in the given address space (Hans de Goede) - Defer the evaluation of _REG for ECDT described ECs till the matching EC device in the DSDT gets parsed and acpi_ec_add() gets called for it (Hans de Goede) - Fix EC address space handler unregistration (Hans de Goede)" * tag 'acpi-6.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: EC: Fix ECDT probe ordering issues ACPI: EC: Fix EC address space handler unregistration ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps ACPICA: include/acpi/acpixf.h: Fix indentation ACPICA: Fix operand resolution
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull more thermal control updates from Rafael Wysocki: "These are updates of assorted thermal drivers, mostly for ARM platforms, generally isolated and fairly straightforward, and the recent Intel HFI driver fix for systems without HFI support. Specifics: - Avoid clearing the HFI status bit on systems without HFI support which triggers unchecked MSR access errors (Srinivas Pandruvada) - Add sm8450 and sm8550 QCom compatible string to DT bindings (Luca Weiss, Neil Armstrong) - Use devm_platform_get_and_ioremap_resource on the ST platform to group two calls into a single one (Minghao Chi) - Use GENMASK instead of bitmaps and validate the temperature after reading it in the imx8mm_thermal driver (Marcus Folkesson) - Convert generic-adc-thermal to DT schema (Rob Herring) - Fix debug print message with inverted logic in the k3_j72xx_bandgap driver (Keerthy) - Fix memory leak on thermal_of_zone_register() failure (Ido Schimmel) - Add support for IPQ8074 in the tsens thermal driver along with the DT bindings (Robert Marko) - Fix and rework the debugfs code in the tsens driver (Christian Marangi) - Add calibration and DT documentation for the imx8mm driver (Marek Vasut) - Add DT bindings and compatible for the Mediatek SoCs mt7981 and mt7983 (Daniel Golle) - Don't show an error message if it happens at probe time while it will be deferred on the QCom SPMI ADC driver (Johan Hovold) - Add HWMon support for the imx8mm board (Alexander Stein) - Remove pointless include from the power allocator governor (Christophe JAILLET) - Add interrupt DT bindings for QCom SoCs SC8280XP, SM6350 and SM8450 (Krzysztof Kozlowski) - Fix inaccurate warning message for the QCom tsens gen2 (Luca Weiss) - Demote error log of thermal zone register to debug in the tsens QCom driver (Manivannan Sadhasivam) - Consolidate the the efuse values and the errata handling in the TI Bandgap driver (Bryan Brattlof) - Document Renesas RZ/Five as compatible with RZ/G2UL in the DT bindings (Lad Prabhakar) - Fix the irq handler return value in the LMh driver (Bjorn Andersson) - Delete empty platform remove callback from imx_sc_thermal (Uwe Kleine-König)" * tag 'thermal-6.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (35 commits) thermal/drivers/imx_sc_thermal: Drop empty platform remove function thermal/drivers/qcom/lmh: Fix irq handler return value dt-bindings: thermal: qcom-tsens: Add compatible for sm8550 thermal/drivers/st: Use devm_platform_get_and_ioremap_resource() dt-bindings: thermal: rzg2l-thermal: Document RZ/Five SoC dt-bindings: thermal: k3-j72xx: conditionally require efuse reg range dt-bindings: thermal: k3-j72xx: elaborate on binding description thermal/drivers/k3_j72xx_bandgap: Map fuse_base only for erratum workaround thermal/drivers/k3_j72xx_bandgap: Remove fuse_base from structure thermal/drivers/k3_j72xx_bandgap: Use bool for i2128 erratum flag thermal/drivers/k3_j72xx_bandgap: Simplify k3_thermal_get_temp() function thermal/drivers/qcom: Demote error log of thermal zone register to debug thermal/drivers/qcom/temp-alarm: Fix inaccurate warning for gen2 dt-bindings: thermal: qcom-tsens: narrow interrupts for SC8280XP, SM6350 and SM8450 thermal/core/power allocator: Remove a useless include thermal/drivers/imx8mm: Add hwmon support thermal: qcom-spmi-adc-tm5: suppress probe-deferral error message dt-bindings: thermal: mediatek: add compatible string for MT7986 and MT7981 SoC thermal: ti-soc-thermal: Drop comma after SoC match table sentinel thermal/drivers/imx: Add support for loading calibration data from OCOTP ...
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linuxLinus Torvalds authored
Pull gpio updates from Bartosz Golaszewski: "We have a new GPIO multiplexer driver, bunch of driver updates and refactoring in the core GPIO library. GPIO core: - teach gpiolib to work with software nodes for HW description - remove ARCH_NR_GPIOS treewide as we no longer impose any limit on the number of GPIOS since the allocation became entirely dynamic - add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC controller, Freescale PCIe and Ethernet controller, Himax LCDs and Mediatek mt2701 - refactor OF quirk code - some general refactoring of the OF and ACPI code, adding new helpers, minor tweaks and fixes, making fwnode usage consistent etc. GPIO uAPI: - fix an issue where the user-space can trigger a NULL-pointer dereference in the kernel by opening a device file, forcing a driver unbind and then calling one of the syscalls on the associated file descriptor New drivers: - add gpio-latch: a new GPIO multiplexer based on latches connected to other GPIOs Driver updates: - convert i2c GPIO expanders to using .probe_new() - drop the gpio-sta2x11 driver - factor out common code for the ACCES IDIO-16 family of controllers and use this new library wherever applicable in drivers - add DT support to gpio-hisi - allow building gpio-davinci as a module and increase its maxItems property - add support for a new model to gpio-pca9570 - other minor changes to various drivers" * tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (66 commits) gpio: sim: set a limit on the number of GPIOs gpiolib: protect the GPIO device against being dropped while in use by user-space gpiolib: cdev: fix NULL-pointer dereferences gpiolib: Provide to_gpio_device() helper gpiolib: Unify access to the device properties gpio: Do not include <linux/kernel.h> when not really needed. gpio: pcf857x: Convert to i2c's .probe_new() gpio: pca953x: Convert to i2c's .probe_new() gpio: max732x: Convert to i2c's .probe_new() dt-bindings: gpio: gpio-davinci: Increase maxItems in gpio-line-names gpiolib: ensure that fwnode is properly set gpio: sl28cpld: Replace irqchip mask_invert with unmask_base gpiolib: of: Use correct fwnode for DT-probed chips gpiolib: of: Drop redundant check in of_mm_gpiochip_remove() gpiolib: of: Prepare of_mm_gpiochip_add_data() for fwnode gpiolib: add support for software nodes gpiolib: consolidate GPIO lookups gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes gpiolib: acpi: change acpi_find_gpio() to accept firmware node ...
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Rafael J. Wysocki authored
Merge additional ACPI EC driver fixes for 6.2-rc1: - Fix EC address space handler unregistration (Hans de Goede). - Defer the evaluation of _REG for ECDT described ECs till the matching EC device in the DSDT gets parsed and acpi_ec_add() gets called for it (Hans de Goede). * acpi-ec: ACPI: EC: Fix ECDT probe ordering issues ACPI: EC: Fix EC address space handler unregistration
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdevLinus Torvalds authored
Pull fbdev updates from Helge Deller: "The most relevant change are the patches from Dmitry Torokhov to switch omapfb to the gpiod API. The other patches are small and fix e.g. UML build issues, improve the error paths and cleanup code" * tag 'fbdev-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (32 commits) fbdev: fbcon: release buffer when fbcon_do_set_font() failed fbdev: sh_mobile_lcdcfb: use sysfs_emit() to instead of scnprintf() fbdev: uvesafb: use sysfs_emit() to instead of scnprintf() fbdev: uvesafb: Simplify uvesafb_remove() fbdev: uvesafb: Fixes an error handling path in uvesafb_probe() fbdev: uvesafb: don't build on UML fbdev: geode: don't build on UML fbdev: ep93xx-fb: Add missing clk_disable_unprepare in ep93xxfb_probe() fbdev: matroxfb: Convert to i2c's .probe_new() fbdev: da8xx-fb: add missing regulator_disable() in fb_probe fbdev: controlfb: fix spelling mistake "paramaters"->"parameters" fbdev: vermilion: decrease reference count in error path fbdev: smscufx: fix error handling code in ufx_usb_probe fbdev: via: Fix error in via_core_init() fbdev: pm2fb: fix missing pci_disable_device() fbdev: pxafb: Remove unnecessary print function dev_err() fbdev: omapfb: panel-sharp-ls037v7dw01: fix included headers fbdev: omapfb: panel-tpo-td028ttec1: stop including gpio.h fbdev: omapfb: panel-lgphilips-lb035q02: remove backlight GPIO handling fbdev: omapfb: encoder-opa362: fix included headers ...
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Rafael J. Wysocki authored
Merge additional ACPICA changes for 6.2-rc1: - Avoid trying to resolve operands in AML when there are none (Amadeusz Sławiński). - Fix indentation in include/acpi/acpixf.h to help applying patches from the upstream ACPICA git (Hans de Goede). - Make it possible to install an address space handler without evaluating _REG for Operation Regions in the given address space (Hans de Goede). * acpica: ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps ACPICA: include/acpi/acpixf.h: Fix indentation ACPICA: Fix operand resolution
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git://git.samba.org/ksmbdLinus Torvalds authored
Pull ksmbd updates from Steve French: "Six ksmbd server fixes" * tag '6.2-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd: ksmbd: Convert to use sysfs_emit()/sysfs_emit_at() APIs ksmbd: Fix resource leak in smb2_lock() ksmbd: Fix resource leak in ksmbd_session_rpc_open() ksmbd: replace one-element arrays with flexible-array members ksmbd: use F_SETLK when unlocking a file ksmbd: set SMB2_SESSION_FLAG_ENCRYPT_DATA when enforcing data encryption for this share
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- 14 Dec, 2022 17 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fsLinus Torvalds authored
Pull f2fs updates from Jaegeuk Kim: "In this round, we've added two features: F2FS_IOC_START_ATOMIC_REPLACE and a per-block age-based extent cache. F2FS_IOC_START_ATOMIC_REPLACE is a variant of the previous atomic write feature which guarantees a per-file atomicity. It would be more efficient than AtomicFile implementation in Android framework. The per-block age-based extent cache implements another type of extent cache in memory which keeps the per-block age in a file, so that block allocator could split the hot and cold data blocks more accurately. Enhancements: - introduce F2FS_IOC_START_ATOMIC_REPLACE - refactor extent_cache to add a new per-block-age-based extent cache support - introduce discard_urgent_util, gc_mode, max_ordered_discard sysfs knobs - add proc entry to show discard_plist info - optimize iteration over sparse directories - add barrier mount option Bug fixes: - avoid victim selection from previous victim section - fix to enable compress for newly created file if extension matches - set zstd compress level correctly - initialize locks early in f2fs_fill_super() to fix bugs reported by syzbot - correct i_size change for atomic writes - allow to read node block after shutdown - allow to set compression for inlined file - fix gc mode when gc_urgent_high_remaining is 1 - should put a page when checking the summary info Minor fixes and various clean-ups in GC, discard, debugfs, sysfs, and doc" * tag 'f2fs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (63 commits) f2fs: reset wait_ms to default if any of the victims have been selected f2fs: fix some format WARNING in debug.c and sysfs.c f2fs: don't call f2fs_issue_discard_timeout() when discard_cmd_cnt is 0 in f2fs_put_super() f2fs: fix iostat parameter for discard f2fs: Fix spelling mistake in label: free_bio_enrty_cache -> free_bio_entry_cache f2fs: add block_age-based extent cache f2fs: allocate the extent_cache by default f2fs: refactor extent_cache to support for read and more f2fs: remove unnecessary __init_extent_tree f2fs: move internal functions into extent_cache.c f2fs: specify extent cache for read explicitly f2fs: introduce f2fs_is_readonly() for readability f2fs: remove F2FS_SET_FEATURE() and F2FS_CLEAR_FEATURE() macro f2fs: do some cleanup for f2fs module init MAINTAINERS: Add f2fs bug tracker link f2fs: remove the unused flush argument to change_curseg f2fs: open code allocate_segment_by_default f2fs: remove struct segment_allocation default_salloc_ops f2fs: introduce discard_urgent_util sysfs node f2fs: define MIN_DISCARD_GRANULARITY macro ...
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V updates from Palmer Dabbelt: - Support for the T-Head PMU via the perf subsystem - ftrace support for rv32 - Support for non-volatile memory devices - Various fixes and cleanups * tag 'riscv-for-linus-6.2-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (52 commits) Documentation: RISC-V: patch-acceptance: s/implementor/implementer Documentation: RISC-V: Mention the UEFI Standards Documentation: RISC-V: Allow patches for non-standard behavior Documentation: RISC-V: Fix a typo in patch-acceptance riscv: Fixup compile error with !MMU riscv: Fix P4D_SHIFT definition for 3-level page table mode riscv: Apply a static assert to riscv_isa_ext_id RISC-V: Add some comments about the shadow and overflow stacks RISC-V: Align the shadow stack RISC-V: Ensure Zicbom has a valid block size RISC-V: Introduce riscv_isa_extension_check RISC-V: Improve use of isa2hwcap[] riscv: Don't duplicate _ALTERNATIVE_CFG* macros riscv: alternatives: Drop the underscores from the assembly macro names riscv: alternatives: Don't name unused macro parameters riscv: Don't duplicate __ALTERNATIVE_CFG in __ALTERNATIVE_CFG_2 riscv: mm: call best_map_size many times during linear-mapping riscv: Move cast inside kernel_mapping_[pv]a_to_[vp]a riscv: Fix crash during early errata patching riscv: boot: add zstd support ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 core updates from Borislav Petkov: - Add the call depth tracking mitigation for Retbleed which has been long in the making. It is a lighterweight software-only fix for Skylake-based cores where enabling IBRS is a big hammer and causes a significant performance impact. What it basically does is, it aligns all kernel functions to 16 bytes boundary and adds a 16-byte padding before the function, objtool collects all functions' locations and when the mitigation gets applied, it patches a call accounting thunk which is used to track the call depth of the stack at any time. When that call depth reaches a magical, microarchitecture-specific value for the Return Stack Buffer, the code stuffs that RSB and avoids its underflow which could otherwise lead to the Intel variant of Retbleed. This software-only solution brings a lot of the lost performance back, as benchmarks suggest: https://lore.kernel.org/all/20220915111039.092790446@infradead.org/ That page above also contains a lot more detailed explanation of the whole mechanism - Implement a new control flow integrity scheme called FineIBT which is based on the software kCFI implementation and uses hardware IBT support where present to annotate and track indirect branches using a hash to validate them - Other misc fixes and cleanups * tag 'x86_core_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (80 commits) x86/paravirt: Use common macro for creating simple asm paravirt functions x86/paravirt: Remove clobber bitmask from .parainstructions x86/debug: Include percpu.h in debugreg.h to get DECLARE_PER_CPU() et al x86/cpufeatures: Move X86_FEATURE_CALL_DEPTH from bit 18 to bit 19 of word 11, to leave space for WIP X86_FEATURE_SGX_EDECCSSA bit x86/Kconfig: Enable kernel IBT by default x86,pm: Force out-of-line memcpy() objtool: Fix weak hole vs prefix symbol objtool: Optimize elf_dirty_reloc_sym() x86/cfi: Add boot time hash randomization x86/cfi: Boot time selection of CFI scheme x86/ibt: Implement FineIBT objtool: Add --cfi to generate the .cfi_sites section x86: Add prefix symbols for function padding objtool: Add option to generate prefix symbols objtool: Avoid O(bloody terrible) behaviour -- an ode to libelf objtool: Slice up elf_create_section_symbol() kallsyms: Revert "Take callthunks into account" x86: Unconfuse CONFIG_ and X86_FEATURE_ namespaces x86/retpoline: Fix crash printing warning x86/paravirt: Fix a !PARAVIRT build warning ...
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Linus Torvalds authored
Merge tag 'apparmor-pr-2022-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor Pull apparmor updates from John Johansen: "Features: - switch to zstd compression for profile raw data Cleanups: - simplify obtaining the newest label on a cred - remove useless static inline functions - compute permission conversion on policy unpack - refactor code to share common permissins - refactor unpack to group policy backwards compatiblity code - add __init annotation to aa_{setup/teardown}_dfa_engine() Bug Fixes: - fix a memleak in - multi_transaction_new() - free_ruleset() - unpack_profile() - alloc_ns() - fix lockdep warning when removing a namespace - fix regression in stacking due to label flags - fix loading of child before parent - fix kernel-doc comments that differ from fns - fix spelling errors in comments - store return value of unpack_perms_table() to signed variable" * tag 'apparmor-pr-2022-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (64 commits) apparmor: Fix uninitialized symbol 'array_size' in policy_unpack_test.c apparmor: Add __init annotation to aa_{setup/teardown}_dfa_engine() apparmor: Fix memleak in alloc_ns() apparmor: Fix memleak issue in unpack_profile() apparmor: fix a memleak in free_ruleset() apparmor: Fix spelling of function name in comment block apparmor: Use pointer to struct aa_label for lbs_cred AppArmor: Fix kernel-doc LSM: Fix kernel-doc AppArmor: Fix kernel-doc apparmor: Fix loading of child before parent apparmor: refactor code that alloc null profiles apparmor: fix obsoleted comments for aa_getprocattr() and audit_resource() apparmor: remove useless static inline functions apparmor: Fix unpack_profile() warn: passing zero to 'ERR_PTR' apparmor: fix uninitialize table variable in error in unpack_trans_table apparmor: store return value of unpack_perms_table() to signed variable apparmor: Fix kunit test for out of bounds array apparmor: Fix decompression of rawdata for read back to userspace apparmor: Fix undefined references to zstd_ symbols ...
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto updates from Herbert Xu: "API: - Optimise away self-test overhead when they are disabled - Support symmetric encryption via keyring keys in af_alg - Flip hwrng default_quality, the default is now maximum entropy Algorithms: - Add library version of aesgcm - CFI fixes for assembly code - Add arm/arm64 accelerated versions of sm3/sm4 Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned - Fix selftest failures in rockchip - Add support for RK3328/RK3399 in rockchip - Add deflate support in qat - Merge ux500 into stm32 - Add support for TEE for PCI ID 0x14CA in ccp - Add mt7986 support in mtk - Add MaxLinear platform support in inside-secure - Add NPCM8XX support in npcm" * tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits) crypto: ux500/cryp - delete driver crypto: stm32/cryp - enable for use with Ux500 crypto: stm32 - enable drivers to be used on Ux500 dt-bindings: crypto: Let STM32 define Ux500 CRYP hwrng: geode - Fix PCI device refcount leak hwrng: amd - Fix PCI device refcount leak crypto: qce - Set DMA alignment explicitly crypto: octeontx2 - Set DMA alignment explicitly crypto: octeontx - Set DMA alignment explicitly crypto: keembay - Set DMA alignment explicitly crypto: safexcel - Set DMA alignment explicitly crypto: hisilicon/hpre - Set DMA alignment explicitly crypto: chelsio - Set DMA alignment explicitly crypto: ccree - Set DMA alignment explicitly crypto: ccp - Set DMA alignment explicitly crypto: cavium - Set DMA alignment explicitly crypto: img-hash - Fix variable dereferenced before check 'hdev->req' crypto: arm64/ghash-ce - use frame_push/pop macros consistently crypto: arm64/crct10dif - use frame_push/pop macros consistently crypto: arm64/aes-modes - use frame_push/pop macros consistently ...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull kernel hardening updates from Kees Cook: - Convert flexible array members, fix -Wstringop-overflow warnings, and fix KCFI function type mismatches that went ignored by maintainers (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook) - Remove the remaining side-effect users of ksize() by converting dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add more __alloc_size attributes, and introduce full testing of all allocator functions. Finally remove the ksize() side-effect so that each allocation-aware checker can finally behave without exceptions - Introduce oops_limit (default 10,000) and warn_limit (default off) to provide greater granularity of control for panic_on_oops and panic_on_warn (Jann Horn, Kees Cook) - Introduce overflows_type() and castable_to_type() helpers for cleaner overflow checking - Improve code generation for strscpy() and update str*() kern-doc - Convert strscpy and sigphash tests to KUnit, and expand memcpy tests - Always use a non-NULL argument for prepare_kernel_cred() - Disable structleak plugin in FORTIFY KUnit test (Anders Roxell) - Adjust orphan linker section checking to respect CONFIG_WERROR (Xin Li) - Make sure siginfo is cleared for forced SIGKILL (haifeng.xu) - Fix um vs FORTIFY warnings for always-NULL arguments * tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits) ksmbd: replace one-element arrays with flexible-array members hpet: Replace one-element array with flexible-array member um: virt-pci: Avoid GCC non-NULL warning signal: Initialize the info in ksignal lib: fortify_kunit: build without structleak plugin panic: Expose "warn_count" to sysfs panic: Introduce warn_limit panic: Consolidate open-coded panic_on_warn checks exit: Allow oops_limit to be disabled exit: Expose "oops_count" to sysfs exit: Put an upper limit on how often we can oops panic: Separate sysctl logic from CONFIG_SMP mm/pgtable: Fix multiple -Wstringop-overflow warnings mm: Make ksize() a reporting-only function kunit/fortify: Validate __alloc_size attribute results drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid() driver core: Add __alloc_size hint to devm allocators overflow: Introduce overflows_type() and castable_to_type() coredump: Proactively round up to kmalloc bucket size ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblockLinus Torvalds authored
Pull memblock updates from Mike Rapoport: "Extend test coverage: - add tests that trigger reallocation of memblock structures from memblock itself via memblock_double_array() - add tests for memblock_alloc_exact_nid_raw() that verify that requested node and memory range constraints are respected" * tag 'memblock-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: memblock tests: remove completed TODO item memblock tests: add generic NUMA tests for memblock_alloc_exact_nid_raw memblock tests: add bottom-up NUMA tests for memblock_alloc_exact_nid_raw memblock tests: add top-down NUMA tests for memblock_alloc_exact_nid_raw memblock tests: introduce range tests for memblock_alloc_exact_nid_raw memblock test: Update TODO list memblock test: Add test to memblock_reserve() 129th region memblock test: Add test to memblock_add() 129th region
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git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linuxLinus Torvalds authored
Pull orangefs updates from Mike Marshall: - fix problems with memory leaks on exit in sysfs and debufs (Zhang) - remove an unused variable and an unneeded assignment (Colin) * tag 'for-linus-6.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init() orangefs: Fix kmemleak in orangefs_sysfs_init() orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string() orangefs: Fix sysfs not cleanup when dev init failed orangefs: remove redundant assignment to variable buffer_index orangefs: remove variable i
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Tetsuo Handa authored
syzbot is reporting memory leak at fbcon_do_set_font() [1], for commit a5a92303 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") missed that the buffer might be newly allocated by fbcon_set_font(). Link: https://syzkaller.appspot.com/bug?extid=25bdb7b1703639abd498 [1] Reported-by: syzbot <syzbot+25bdb7b1703639abd498@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Tested-by: syzbot <syzbot+25bdb7b1703639abd498@syzkaller.appspotmail.com> Fixes: a5a92303 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") CC: stable@vger.kernel.org # 5.15+ Signed-off-by: Helge Deller <deller@gmx.de>
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ye xingchen authored
Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Helge Deller <deller@gmx.de>
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ye xingchen authored
Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Helge Deller <deller@gmx.de>
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Christophe JAILLET authored
When the remove() function is called, we know that the probe() function has successfully been executed. So 'info' is known to be not NULL. Simplify the code accordingly. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Helge Deller <deller@gmx.de>
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Christophe JAILLET authored
If an error occurs after a successful uvesafb_init_mtrr() call, it must be undone by a corresponding arch_phys_wc_del() call, as already done in the remove function. This has been added in the remove function in commit 63e28a7a ("uvesafb: Clean up MTRR code") Fixes: 8bdb3a2d ("uvesafb: the driver core") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Helge Deller <deller@gmx.de>
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Randy Dunlap authored
The uvesafb fbdev driver uses memory management information that is not available on ARCH=um, so don't allow this driver to be built on UML. Prevents these build errors: ../drivers/video/fbdev/uvesafb.c: In function ‘uvesafb_vbe_init’: ../drivers/video/fbdev/uvesafb.c:807:21: error: ‘__supported_pte_mask’ undeclared (first use in this function) 807 | if (__supported_pte_mask & _PAGE_NX) { ../drivers/video/fbdev/uvesafb.c:807:44: error: ‘_PAGE_NX’ undeclared (first use in this function) 807 | if (__supported_pte_mask & _PAGE_NX) { Fixes: 68f5d3f3 ("um: add PCI over virtio emulation driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Richard Weinberger <richard@nod.at> Cc: linux-um@lists.infradead.org Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: Michal Januszewski <spock@gentoo.org> Signed-off-by: Helge Deller <deller@gmx.de>
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Randy Dunlap authored
The geode fbdev driver uses struct cpuinfo fields that are not present on ARCH=um, so don't allow this driver to be built on UML. Prevents these build errors: In file included from ../arch/x86/include/asm/olpc.h:7:0, from ../drivers/mfd/cs5535-mfd.c:17: ../arch/x86/include/asm/geode.h: In function ‘is_geode_gx’: ../arch/x86/include/asm/geode.h:16:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’ return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && ../arch/x86/include/asm/geode.h:16:39: error: ‘X86_VENDOR_NSC’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’? return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && ../arch/x86/include/asm/geode.h:17:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’ (boot_cpu_data.x86 == 5) && ../arch/x86/include/asm/geode.h:18:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’ (boot_cpu_data.x86_model == 5)); ../arch/x86/include/asm/geode.h: In function ‘is_geode_lx’: ../arch/x86/include/asm/geode.h:23:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’ return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && ../arch/x86/include/asm/geode.h:23:39: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’? return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && ../arch/x86/include/asm/geode.h:24:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’ (boot_cpu_data.x86 == 5) && ../arch/x86/include/asm/geode.h:25:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’ (boot_cpu_data.x86_model == 10)); Fixes: 68f5d3f3 ("um: add PCI over virtio emulation driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Richard Weinberger <richard@nod.at> Cc: linux-um@lists.infradead.org Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: Andres Salomon <dilinger@queued.net> Cc: linux-geode@lists.infradead.org Signed-off-by: Helge Deller <deller@gmx.de>
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Gaosheng Cui authored
The clk_disable_unprepare() should be called in the error handling of register_framebuffer(), fix it. Fixes: 0937a7b3 ("video: ep93xx: Prepare clock before using it") Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Helge Deller <deller@gmx.de>
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Uwe Kleine-König authored
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Helge Deller <deller@gmx.de>
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