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2023-05-02docs: fix "Reviewd" typoDeming Wang
Spell "Reviewed" properly in Documentation/Translations/jp/SubmittingPatches Signed-off-by: Deming Wang <wangdeming@inspur.com> Reviewed-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20230502010157.1655-1-wangdeming@inspur.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-05-02Documentation: timers: hrtimers: Make hybrid union historicalGeert Uytterhoeven
Non-scalar time was removed from the ktime hybrid union in v3.17, and the union itself followed suit in v4.10. Make it clear that ktime_t is always a 64bit scalar type, to avoid confusing the casual reader. While at it, fix a spelling mistake. Fixes: 24e4a8c3e8868874 ("ktime: Kill non-scalar ktime_t implementation for 2038") Fixes: 2456e855354415bf ("ktime: Get rid of the union") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/59250a3d1c2c827b5c1833169a6e652ca6a784e6.1683021785.git.geert+renesas@glider.be Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-05-02afs: Avoid endless loop if file is larger than expectedMarc Dionne
afs_read_dir fetches an amount of data that's based on what the inode size is thought to be. If the file on the server is larger than what was fetched, the code rechecks i_size and retries. If the local i_size was not properly updated, this can lead to an endless loop of fetching i_size from the server and noticing each time that the size is larger on the server. If it is known that the remote size is larger than i_size, bump up the fetch size to that size. Fixes: f3ddee8dc4e2 ("afs: Fix directory handling") Signed-off-by: Marc Dionne <marc.dionne@auristor.com> Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-afs@lists.infradead.org
2023-05-02afs: Fix getattr to report server i_size on dirs, not local sizeDavid Howells
Fix afs_getattr() to report the server's idea of the file size of a directory rather than the local size. The local size may differ as we edit the local copy to avoid having to redownload it and we may end up with a differently structured blob of a different size. However, if the directory is discarded from the pagecache we then download it again and the user may see the directory file size apparently change. Fixes: 63a4681ff39c ("afs: Locally edit directory data for mkdir/create/unlink/...") Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org
2023-05-02afs: Fix updating of i_size with dv jump from serverMarc Dionne
If the data version returned from the server is larger than expected, the local data is invalidated, but we may still want to note the remote file size. Since we're setting change_size, we have to also set data_changed for the i_size to get updated. Fixes: 3f4aa9818163 ("afs: Fix EOF corruption") Signed-off-by: Marc Dionne <marc.dionne@auristor.com> Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-afs@lists.infradead.org
2023-05-02cifs: fix potential use-after-free bugs in TCP_Server_Info::hostnamePaulo Alcantara
TCP_Server_Info::hostname may be updated once or many times during reconnect, so protect its access outside reconnect path as well and then prevent any potential use-after-free bugs. Cc: stable@vger.kernel.org Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-05-02cifs: print smb3_fs_context::source when mountingPaulo Alcantara
Print full device name (UNC + optional prefix) from @old_ctx->source when printing info about mount. Before patch mount.cifs //srv/share/dir /mnt -o ... dmesg ... CIFS: Attempting to mount \\srv\share After patch mount.cifs //srv/share/dir /mnt -o ... dmesg ... CIFS: Attempting to mount //srv/share/dir Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-05-02cifs: protect session status check in smb2_reconnect()Paulo Alcantara
Use @ses->ses_lock to protect access of @ses->ses_status. Cc: stable@vger.kernel.org Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-05-02SMB3.1.1: correct definition for app_instance_id create contextsSteve French
The name lengths were incorrect for two create contexts. SMB2_CREATE_APP_INSTANCE_ID SMB2_CREATE_APP_INSTANCE_VERSION Update the definitions for these two to match the protocol specs. Acked-by: Paulo Alcantara (SUSE) <pc@manguebit.com> Reviewed-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-05-02ALSA: hda/realtek: Add quirk for ASUS UM3402YAR using CS35L41Mark Asselstine
This Asus Zenbook laptop uses Realtek HDA codec combined with 2xCS35L41 Amplifiers using I2C with External Boost. Signed-off-by: Mark Asselstine <asselsm@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20230501231346.54979-1-asselsm@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-02arm64: lds: move .got section out of .textFangrui Song
Currently, the .got section is placed within the output section .text. However, when .got is non-empty, the SHF_WRITE flag is set for .text when linked by lld. GNU ld recognizes .text as a special section and ignores the SHF_WRITE flag. By renaming .text, we can also get the SHF_WRITE flag. The kernel has performed R_AARCH64_RELATIVE resolving very early, and can then assume that .got is read-only. Let's move .got to the vmlinux_rodata pseudo-segment. As Ard Biesheuvel notes: "This matters to consumers of the vmlinux ELF representation of the kernel image, such as syzkaller, which disregards writable PT_LOAD segments when resolving code symbols. The kernel itself does not care about this distinction, but given that the GOT contains data and not code, it does not require executable permissions, and therefore does not belong in .text to begin with." Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Fangrui Song <maskray@google.com> Link: https://lore.kernel.org/r/20230502074105.1541926-1-maskray@google.com Signed-off-by: Will Deacon <will@kernel.org>
2023-05-02arm64: kernel: remove SHF_WRITE|SHF_EXECINSTR from .idmap.textndesaulniers@google.com
commit d54170812ef1 ("arm64: fix .idmap.text assertion for large kernels") modified some of the section assembler directives that declare .idmap.text to be SHF_ALLOC instead of SHF_ALLOC|SHF_WRITE|SHF_EXECINSTR. This patch fixes up the remaining stragglers that were left behind. Add Fixes tag so that this doesn't precede related change in stable. Fixes: d54170812ef1 ("arm64: fix .idmap.text assertion for large kernels") Reported-by: Greg Thelen <gthelen@google.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20230428-awx-v2-1-b197ffa16edc@google.com Signed-off-by: Will Deacon <will@kernel.org>
2023-05-02arm64: cpufeature: Fix pointer auth hwcapsKristina Martsenko
The pointer auth hwcaps are not getting reported to userspace, as they are missing the .matches field. Add the field back. Fixes: 876e3c8efe79 ("arm64/cpufeature: Pull out helper for CPUID register definitions") Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230428132546.2513834-1-kristina.martsenko@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2023-05-02perf tracepoint: Fix memory leak in is_valid_tracepoint()Yang Jihong
When is_valid_tracepoint() returns 1, need to call put_events_file() to free `dir_path`. Fixes: 25a7d914274de386 ("perf parse-events: Use get/put_events_file()") Signed-off-by: Yang Jihong <yangjihong1@huawei.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230421025953.173826-1-yangjihong1@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf cs-etm: Add fix for coresight trace for any range of CPUsGanapatrao Kulkarni
The current implementation supports coresight trace decode for a range of CPUs, if the first CPU is CPU0. Perf report segfaults, if tried for sparse CPUs list and also for any range of CPUs(non zero first CPU). Adding a fix to perf report for any range of CPUs and for sparse list. Signed-off-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com> Link: https://lore.kernel.org/r/20230421055253.83912-1-gankulkarni@os.amperecomputing.com Cc: suzuki.poulose@arm.com Cc: acme@kernel.org Cc: mathieu.poirier@linaro.org Cc: mike.leach@linaro.org Cc: linux-arm-kernel@lists.infradead.org Cc: darren@os.amperecomputing.com Cc: scclevenger@os.amperecomputing.com Cc: scott@os.amperecomputing.com Cc: linux-kernel@vger.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf build: Fix unescaped # in perf build-testJames Clark
With the following bash and make versions: $ make --version GNU Make 4.2.1 Built for aarch64-unknown-linux-gnu $ bash --version GNU bash, version 5.0.17(1)-release (aarch64-unknown-linux-gnu) This error is encountered when running the build-test target: $ make -C tools/perf build-test tests/make:181: *** unterminated call to function 'shell': missing ')'. Stop. make: *** [Makefile:103: build-test] Error 2 Fix it by escaping the # which was causing make to interpret the rest of the line as a comment leaving the unclosed opening bracket. Fixes: 56d5229471ee1634 ("tools build: Pass libbpf feature only if libbpf 1.0+") Signed-off-by: James Clark <james.clark@arm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20230425104414.1723571-1-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf unwind: Suppress massive unsupported target platform errorsChangbin Du
When cross-analyzing perf data recorded on an another platform, massive unsupported target platform errors are printed. So let's show this message as warning and only once. Signed-off-by: Changbin Du <changbin.du@huawei.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Hui Wang <hw.huiwang@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230426032246.3608596-1-changbin.du@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf script: Add new parameter in kfree_skb tracepoint to the python scripts ↵Sriram Yagnaraman
using it Include reason parameter that was added in commit c504e5c2f9648a1e ("net: skb: introduce kfree_skb_reason()") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Link: https://lore.kernel.org/r/20230426104149.14089-1-sriram.yagnaraman@est.tech Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf script: Print raw ip instead of binary offset for callchainChangbin Du
Before this, the raw ip is printed for non-callchain and dso offset for callchain. This inconsistent output for address may confuse people. And mostly what we expect is the raw ip. 'dso offset' is printed in callchain: $ perf script ... ls 1341034 2739463.008343: 2162417 cycles: ffffffff99d657a7 [unknown] ([unknown]) ffffffff99e00b67 [unknown] ([unknown]) 235d3 memset+0x53 (/usr/lib/x86_64-linux-gnu/ld-2.31.so) # dso offset a61b _dl_map_object+0x1bb (/usr/lib/x86_64-linux-gnu/ld-2.31.so) raw ip is printed for non-callchain: $ perf script -G ... ls 1341034 2739463.008876: 2053304 cycles: ffffffffc1596923 [unknown] ([unknown]) ls 1341034 2739463.009381: 1917049 cycles: 14def8e149e6 __strcoll_l+0xd96 (/usr/lib/x86_64-linux-gnu/libc-2.31.so) # raw ip Let's have consistent output for it. Later I'll add a new field 'dsoff' to print dso offset. Signed-off-by: Changbin Du <changbin.du@huawei.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Hui Wang <hw.huiwang@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230418031825.1262579-2-changbin.du@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf symbols: Fix return incorrect build_id size in elf_read_build_id()Yang Jihong
In elf_read_build_id(), if gnu build_id is found, should return the size of the actually copied data. If descsz is greater thanBuild_ID_SIZE, write_buildid data access may occur. Fixes: be96ea8ffa788dcc ("perf symbols: Fix issue with binaries using 16-bytes buildids (v2)") Reported-by: Will Ochowicz <Will.Ochowicz@genusplc.com> Signed-off-by: Yang Jihong <yangjihong1@huawei.com> Tested-by: Will Ochowicz <Will.Ochowicz@genusplc.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/lkml/CWLP265MB49702F7BA3D6D8F13E4B1A719C649@CWLP265MB4970.GBRP265.PROD.OUTLOOK.COM/T/ Link: https://lore.kernel.org/r/20230427012841.231729-1-yangjihong1@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf list: Modify the warning message about scandirat(3)Namhyung Kim
It should mention scandirat() instead of scandir(). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230427230502.1526136-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf list: Fix memory leaks in print_tracepoint_events()Namhyung Kim
It should free entries (not only the array) filled by scandirat() after use. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230427230502.1526136-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf lock contention: Rework offset calculation with BPF CO-RENamhyung Kim
It seems BPF CO-RE reloc doesn't work well with the pattern that gets the field-offset only. Use offsetof() to make it explicit so that the compiler would generate the correct code. Fixes: 0c1228486befa3d6 ("perf lock contention: Support pre-5.14 kernels") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Hao Luo <haoluo@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: bpf@vger.kernel.org Co-developed-by: Andrii Nakryiko <andrii.nakryiko@gmail.com> Link: https://lore.kernel.org/r/20230427234833.1576130-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02perf lock contention: Fix struct rq lock accessNamhyung Kim
The BPF CO-RE's ignore suffix rule requires three underscores. Otherwise it'd fail like below: $ sudo perf lock contention -ab libbpf: prog 'collect_lock_syms': BPF program load failed: Invalid argument libbpf: prog 'collect_lock_syms': -- BEGIN PROG LOAD LOG -- reg type unsupported for arg#0 function collect_lock_syms#380 ; int BPF_PROG(collect_lock_syms) 0: (b7) r6 = 0 ; R6_w=0 1: (b7) r7 = 0 ; R7_w=0 2: (b7) r9 = 1 ; R9_w=1 3: <invalid CO-RE relocation> failed to resolve CO-RE relocation <byte_off> [381] struct rq__new.__lock (0:0 @ offset 0) Fixes: 0c1228486befa3d6 ("perf lock contention: Support pre-5.14 kernels") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Hao Luo <haoluo@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20230427234833.1576130-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-05-02crypto: api - Fix CRYPTO_USER checks for report functionOndrej Mosnacek
Checking the config via ifdef incorrectly compiles out the report functions when CRYPTO_USER is set to =m. Fix it by using IS_ENABLED() instead. Fixes: c0f9e01dd266 ("crypto: api - Check CRYPTO_USER instead of NET for report") Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-02debugobject: Ensure pool refill (again)Thomas Gleixner
The recent fix to ensure atomicity of lookup and allocation inadvertently broke the pool refill mechanism. Prior to that change debug_objects_activate() and debug_objecs_assert_init() invoked debug_objecs_init() to set up the tracking object for statically initialized objects. That's not longer the case and debug_objecs_init() is now the only place which does pool refills. Depending on the number of statically initialized objects this can be enough to actually deplete the pool, which was observed by Ido via a debugobjects OOM warning. Restore the old behaviour by adding explicit refill opportunities to debug_objects_activate() and debug_objecs_assert_init(). Fixes: 63a759694eed ("debugobject: Prevent init race with static objects") Reported-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Ido Schimmel <idosch@nvidia.com> Link: https://lore.kernel.org/r/871qk05a9d.ffs@tglx
2023-05-01RISC-V: include cpufeature.h in cpufeature.cConor Dooley
Automation complains: warning: symbol '__pcpu_scope_misaligned_access_speed' was not declared. Should it be static? cpufeature.c doesn't actually include the header of the same name, as it had not previously used anything from it. The per-cpu variable is declared there, so include it to silence the complaints. Fixes: 62a31d6e38bd ("RISC-V: hwprobe: Support probing of misaligned access performance") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Evan Green <evan@rivosinc.com> Link: https://lore.kernel.org/r/20230420-wound-gizzard-2b2b589d9bea@spud Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-05-01Merge tag 'input-for-v6.4-rc0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - a new driver for Novatek touch controllers - a new driver for power button for NXP BBNSM - a skeleton KUnit tests for the input core - improvements to Xpad game controller driver to support more devices - improvements to edt-ft5x06, hideep and other drivers * tag 'input-for-v6.4-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits) Revert "Input: xpad - fix support for some third-party controllers" dt-bindings: input: pwm-beeper: convert to dt schema Input: xpad - fix PowerA EnWired Controller guide button Input: xpad - add constants for GIP interface numbers Input: synaptics-rmi4 - fix function name in kerneldoc Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe Input: edt-ft5x06 - select REGMAP_I2C Input: melfas_mip4 - report palm touches Input: cma3000_d0x - remove unneeded code Input: edt-ft5x06 - calculate points data length only once Input: edt-ft5x06 - unify the crc check Input: edt-ft5x06 - convert to use regmap API Input: edt-ft5x06 - don't print error messages with dev_dbg() Input: edt-ft5x06 - remove code duplication Input: edt-ft5x06 - don't recalculate the CRC Input: edt-ft5x06 - add spaces to ensure format specification Input: edt-ft5x06 - remove unnecessary blank lines Input: edt-ft5x06 - fix indentation Input: tsc2007 - enable cansleep pendown GPIO Input: Add KUnit tests for some of the input core helper functions ...
2023-05-01riscv: Move .rela.dyn to the init sectionsAlexandre Ghiti
The recent introduction of relocatable kernels prepared the move of .rela.dyn to the init section, but actually forgot to do so, so do it here. Before this patch: "Freeing unused kernel image (initmem) memory: 2592K" After this patch: "Freeing unused kernel image (initmem) memory: 6288K" The difference corresponds to the size of the .rela.dyn section: "[42] .rela.dyn RELA ffffffff8197e798 0127f798 000000000039c660 0000000000000018 A 47 0 8" Fixes: 559d1e45a16d ("riscv: Use --emit-relocs in order to move .rela.dyn in init") Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20230428120932.22735-1-alexghiti@rivosinc.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-05-01dt-bindings: riscv: explicitly mention assumption of Zicsr & Zifencei supportConor Dooley
The dt-binding was defined before the extraction of csr access and fence.i into their own extensions, and thus the presence of the I base extension implies Zicsr and Zifencei. There's no harm in adding them obviously, but for backwards compatibility with DTs that existed prior to that extraction, software is unable to differentiate between "i" and "i_zicsr_zifencei" without any further information. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230427-fence-blurred-c92fb69d4137@wendy Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-05-01riscv: compat_syscall_table: Fixup compile warningGuo Ren
../arch/riscv/kernel/compat_syscall_table.c:12:41: warning: initialized field overwritten [-Woverride-init] 12 | #define __SYSCALL(nr, call) [nr] = (call), | ^ ../include/uapi/asm-generic/unistd.h:567:1: note: in expansion of macro '__SYSCALL' 567 | __SYSCALL(__NR_semget, sys_semget) Fixes: 59c10c52f573 ("riscv: compat: syscall: Add compat_sys_call_table implementation") Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reported-by: kernel test robot <lkp@intel.com> Tested-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Signed-off-by: Drew Fustini <dfustini@baylibre.com> Link: https://lore.kernel.org/r/20230501223353.2833899-1-dfustini@baylibre.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-05-01Merge branch 'next' into for-linusDmitry Torokhov
Prepare input updates for 6.4 merge window.
2023-05-01Revert "Input: xpad - fix support for some third-party controllers"Dmitry Torokhov
This reverts commit db7220c48d8d71476f881a7ae1285e1df4105409 because it causes crashes when trying to dereference xpad->dev->dev in xpad_probe() which has not been set up yet. Reported-by: syzbot+a3f758b8d8cb7e49afec@syzkaller.appspotmail.com Reported-by: Dongliang Mu <dzm91@hust.edu.cn> Link: https://groups.google.com/g/syzkaller-bugs/c/iMhTgpGuIbM Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2023-05-01Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "s390: - More phys_to_virt conversions - Improvement of AP management for VSIE (nested virtualization) ARM64: - Numerous fixes for the pathological lock inversion issue that plagued KVM/arm64 since... forever. - New framework allowing SMCCC-compliant hypercalls to be forwarded to userspace, hopefully paving the way for some more features being moved to VMMs rather than be implemented in the kernel. - Large rework of the timer code to allow a VM-wide offset to be applied to both virtual and physical counters as well as a per-timer, per-vcpu offset that complements the global one. This last part allows the NV timer code to be implemented on top. - A small set of fixes to make sure that we don't change anything affecting the EL1&0 translation regime just after having having taken an exception to EL2 until we have executed a DSB. This ensures that speculative walks started in EL1&0 have completed. - The usual selftest fixes and improvements. x86: - Optimize CR0.WP toggling by avoiding an MMU reload when TDP is enabled, and by giving the guest control of CR0.WP when EPT is enabled on VMX (VMX-only because SVM doesn't support per-bit controls) - Add CR0/CR4 helpers to query single bits, and clean up related code where KVM was interpreting kvm_read_cr4_bits()'s "unsigned long" return as a bool - Move AMD_PSFD to cpufeatures.h and purge KVM's definition - Avoid unnecessary writes+flushes when the guest is only adding new PTEs - Overhaul .sync_page() and .invlpg() to utilize .sync_page()'s optimizations when emulating invalidations - Clean up the range-based flushing APIs - Revamp the TDP MMU's reaping of Accessed/Dirty bits to clear a single A/D bit using a LOCK AND instead of XCHG, and skip all of the "handle changed SPTE" overhead associated with writing the entire entry - Track the number of "tail" entries in a pte_list_desc to avoid having to walk (potentially) all descriptors during insertion and deletion, which gets quite expensive if the guest is spamming fork() - Disallow virtualizing legacy LBRs if architectural LBRs are available, the two are mutually exclusive in hardware - Disallow writes to immutable feature MSRs (notably PERF_CAPABILITIES) after KVM_RUN, similar to CPUID features - Overhaul the vmx_pmu_caps selftest to better validate PERF_CAPABILITIES - Apply PMU filters to emulated events and add test coverage to the pmu_event_filter selftest - AMD SVM: - Add support for virtual NMIs - Fixes for edge cases related to virtual interrupts - Intel AMX: - Don't advertise XTILE_CFG in KVM_GET_SUPPORTED_CPUID if XTILE_DATA is not being reported due to userspace not opting in via prctl() - Fix a bug in emulation of ENCLS in compatibility mode - Allow emulation of NOP and PAUSE for L2 - AMX selftests improvements - Misc cleanups MIPS: - Constify MIPS's internal callbacks (a leftover from the hardware enabling rework that landed in 6.3) Generic: - Drop unnecessary casts from "void *" throughout kvm_main.c - Tweak the layout of "struct kvm_mmu_memory_cache" to shrink the struct size by 8 bytes on 64-bit kernels by utilizing a padding hole Documentation: - Fix goof introduced by the conversion to rST" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (211 commits) KVM: s390: pci: fix virtual-physical confusion on module unload/load KVM: s390: vsie: clarifications on setting the APCB KVM: s390: interrupt: fix virtual-physical confusion for next alert GISA KVM: arm64: Have kvm_psci_vcpu_on() use WRITE_ONCE() to update mp_state KVM: arm64: Acquire mp_state_lock in kvm_arch_vcpu_ioctl_vcpu_init() KVM: selftests: Test the PMU event "Instructions retired" KVM: selftests: Copy full counter values from guest in PMU event filter test KVM: selftests: Use error codes to signal errors in PMU event filter test KVM: selftests: Print detailed info in PMU event filter asserts KVM: selftests: Add helpers for PMC asserts in PMU event filter test KVM: selftests: Add a common helper for the PMU event filter guest code KVM: selftests: Fix spelling mistake "perrmited" -> "permitted" KVM: arm64: vhe: Drop extra isb() on guest exit KVM: arm64: vhe: Synchronise with page table walker on MMU update KVM: arm64: pkvm: Document the side effects of kvm_flush_dcache_to_poc() KVM: arm64: nvhe: Synchronise with page table walker on TLBI KVM: arm64: Handle 32bit CNTPCTSS traps KVM: arm64: nvhe: Synchronise with page table walker on vcpu run KVM: arm64: vgic: Don't acquire its_lock before config_lock KVM: selftests: Add test to verify KVM's supported XCR0 ...
2023-05-01Merge tag 'for-linus' of https://github.com/openrisc/linuxLinus Torvalds
Pull OpenRISC updates from Stafford Horne: "Two things for OpenRISC this cycle: - Small cleanup for device tree cpu iteration from Rob Herring - Add support for storing, restoring and accessing user space FPU state, to allow for libc to support the FPU on OpenRISC" * tag 'for-linus' of https://github.com/openrisc/linux: openrisc: Add floating point regset openrisc: Support floating point user api openrisc: Support storing and restoring fpu state openrisc: Properly store r31 to pt_regs on unhandled exceptions openrisc: Use common of_get_cpu_node() instead of open-coding
2023-05-01Merge tag 'rtc-6.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Not much this cycle, there is the conversion to remove_new and many small fixes in drivers: Subsystem: - Convert to platform remove callback returning void Drivers: - meson-vrtc: fix a firmware display issue" * tag 'rtc-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (53 commits) rtc: armada38x: use devm_platform_ioremap_resource_byname() rtc: sunplus: use devm_platform_ioremap_resource_byname() rtc: jz4740: Make sure clock provider gets removed rtc: k3: handle errors while enabling wake irq rtc: meson-vrtc: Use ktime_get_real_ts64() to get the current time dt-bindings: rtc: Drop unneeded quotes rtc: pcf8523: remove unnecessary OR operation rtc: pcf8523: fix coding-style issues rtc: ds1390: mark OF related data as maybe unused rtc: omap: include header for omap_rtc_power_off_program prototype rtc: sun6i: Use of_property_present() for testing DT property presence rtc: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE rtc: zynqmp: Convert to platform remove callback returning void rtc: xgene: Convert to platform remove callback returning void rtc: wm8350: Convert to platform remove callback returning void rtc: vt8500: Convert to platform remove callback returning void rtc: twl: Convert to platform remove callback returning void rtc: tps6586x: Convert to platform remove callback returning void rtc: tegra: Convert to platform remove callback returning void rtc: sunplus: Convert to platform remove callback returning void ...
2023-05-01Merge tag 'i3c/for-6.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c updates from Alexandre Belloni: "Subsystem: - OF alias bus numbering - convert to platform remove callback returning void New driver: - AST2600 controller, based on Synopsys DesignWare IP Driver update: - dw: add infrastructure to support different platform integrations" * tag 'i3c/for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: ast2600: set variable ast2600_i3c_ops storage-class-specifier to static i3c: ast2600: fix register setting for 545 ohm pullups i3c: ast2600: enable IBI support i3c: dw: Add a platform facility for IBI PEC workarounds i3c: dw: Add support for in-band interrupts i3c: dw: Turn DAT array entry into a struct i3c: dw: Create a generic fifo read function i3c: Allow OF-alias-based persistent bus numbering i3c: ast2600: Add AST2600 platform-specific driver dt-bindings: i3c: Add AST2600 i3c controller i3c: dw: Add infrastructure for platform-specific implementations i3c: dw: use bus mode rather than device reg for conditional tCAS setting i3c: dw: Return the length from a read priv_xfer i3c: svc: Convert to platform remove callback returning void i3c: mipi-i3c-hci: Convert to platform remove callback returning void i3c: cdns: Convert to platform remove callback returning void i3c: dw: Convert to platform remove callback returning void i3c: Make i3c_master_unregister() return void i3c: dw: drop of_match_ptr for ID table i3c: Correct reference to the I²C device data type
2023-05-01Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Some ext4 regression and bug fixes" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: clean up error handling in __ext4_fill_super() ext4: reflect error codes from ext4_multi_mount_protect() to its callers ext4: fix lost error code reporting in __ext4_fill_super() ext4: fix unused iterator variable warnings ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline ext4: fix i_disksize exceeding i_size problem in paritally written case
2023-05-01Merge tag '6.4-rc-smb3-client-fixes-part1' of ↵Linus Torvalds
git://git.samba.org/sfrench/cifs-2.6 Pull cifs fixes from Steve French: - deferred close fix for an important case when cached file should be closed immediately - two fixes for missing locks - eight minor cleanup * tag '6.4-rc-smb3-client-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal module version number for cifs.ko smb3: move some common open context structs to smbfs_common smb3: make query_on_disk_id open context consistent and move to common code SMB3.1.1: add new tree connect ShareFlags cifs: missing lock when updating session status SMB3: Close deferred file handles in case of handle lease break SMB3: Add missing locks to protect deferred close file list cifs: Avoid a cast in add_lease_context() cifs: Simplify SMB2_open_init() cifs: Simplify SMB2_open_init() cifs: Simplify SMB2_open_init()
2023-05-01Merge tag 'tpmdd-v6.4-rc1-fix-v2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd Pull tpm fix from Jarkko Sakkinen: "This fixes a critical bug in my first pull request. I fixed the cherry pick issue and tested with real hardare and libvirt/qemu plus swtpm" * tag 'tpmdd-v6.4-rc1-fix-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: tpm: Re-enable TPM chip boostrapping non-tpm_tis TPM drivers
2023-05-01tools/perf: Add basic support for LoongArchHuacai Chen
Add basic support for LoongArch, which is very similar to the MIPS version. Signed-off-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: ftrace: Add direct call trampoline samples supportYouling Tang
The ftrace samples need per-architecture trampoline implementations to save and restore argument registers around the calls to my_direct_func* and to restore polluted registers (e.g: ra). Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: ftrace: Add direct call supportYouling Tang
Select the HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS to provide the register_ftrace_direct[_multi] interfaces allowing users to register the customed trampoline (direct_caller) as the mcount for one or more target functions. And modify_ftrace_direct[_multi] are also provided for modifying direct_caller. There are a few cases to distinguish: - If a direct call ops is the only one tracing a function AND the direct called trampoline is within the reach of a 'bl' instruction -> the ftrace patchsite jumps to the trampoline - Else -> the ftrace patchsite jumps to the ftrace_regs_caller trampoline points to ftrace_list_ops so it iterates over all registered ftrace ops, including the direct call ops and calls its call_direct_funcs handler which stores the direct called trampoline's address in the ftrace_regs and the ftrace_regs_caller trampoline will return to that address instead of returning to the traced function Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: ftrace: Implement ftrace_find_callable_addr() to simplify codeYouling Tang
In the module processing functions, the same logic can be reused by implementing ftrace_find_callable_addr(). Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: ftrace: Fix build error if DYNAMIC_FTRACE_WITH_REGS is not setYouling Tang
We can see the following build error if CONFIG_DYNAMIC_FTRACE_WITH_REGS is not set on LoongArch: arch/loongarch/kernel/ftrace_dyn.c: In function ‘ftrace_make_call’: arch/loongarch/kernel/ftrace_dyn.c:167:23: error: implicit declaration of function ‘__get_mod’ 167 | ret = __get_mod(&mod, pc); | ^~~~~~~~~ arch/loongarch/kernel/ftrace_dyn.c:171:24: error: implicit declaration of function ‘get_plt_addr’ 171 | addr = get_plt_addr(mod, addr); | ^~~~~~~~~~~~ The reason is that the __get_mod() and get_plt_addr() may be called in ftrace_make_{call,nop}. Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: ftrace: Abstract DYNAMIC_FTRACE_WITH_ARGS accessesQing Zhang
Add new ftrace_regs_{get,set}_*() helpers which can be used to manipulate ftrace_regs. When CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y, these can always be used on any ftrace_regs, and when CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS =n these can be used when regs are available. Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: Add support for function error injectionTiezhu Yang
Inspired by the commit 42d038c4fb00f ("arm64: Add support for function error injection") and the commit ee55ff803b383 ("riscv: Add support for function error injection"), this patch supports function error injection for LoongArch. Mainly implement two functions: (1) regs_set_return_value() which is used to overwrite the return value, (2) override_function_with_return() which is used to override the probed function returning and jump to its caller. Here is a simple test under CONFIG_FUNCTION_ERROR_INJECTION and CONFIG_FAIL_FUNCTION: # echo sys_clone > /sys/kernel/debug/fail_function/inject # echo 100 > /sys/kernel/debug/fail_function/probability # dmesg bash: fork: Invalid argument # dmesg ... FAULT_INJECTION: forcing a failure. name fail_function, interval 1, probability 100, space 0, times 1 ... Call Trace: [<90000000002238f4>] show_stack+0x5c/0x180 [<90000000012e384c>] dump_stack_lvl+0x60/0x88 [<9000000000b1879c>] should_fail_ex+0x1b0/0x1f4 [<900000000032ead4>] fei_kprobe_handler+0x28/0x6c [<9000000000230970>] kprobe_breakpoint_handler+0xf0/0x118 [<90000000012e3e60>] do_bp+0x2c4/0x358 [<9000000002241924>] exception_handlers+0x1924/0x10000 [<900000000023b7d0>] sys_clone+0x0/0x4 [<90000000012e4744>] do_syscall+0x7c/0x94 [<9000000000221e44>] handle_syscall+0xc4/0x160 Tested-by: Hengqi Chen <hengqi.chen@gmail.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: Add ARCH_HAS_FORTIFY_SOURCE selectionQing Zhang
FORTIFY_SOURCE could detect various overflows at compile and run time. ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and run with CONFIG_FORTIFY_SOURCE. So select it in LoongArch. See more about this feature from commit 6974f0c4555e285 ("include/linux/ string.h: add the option of fortified string.h functions"). Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: crypto: Add crc32 and crc32c hw accelerationMin Zhou
With a blatant copy of some MIPS bits we introduce the crc32 and crc32c hw accelerated module to LoongArch. LoongArch has provided these instructions to calculate crc32 and crc32c: * crc.w.b.w crcc.w.b.w * crc.w.h.w crcc.w.h.w * crc.w.w.w crcc.w.w.w * crc.w.d.w crcc.w.d.w So we can make use of these instructions to improve the performance of calculation for crc32(c) checksums. As can be seen from the following test results, crc32(c) instructions can improve the performance by 58%. Software implemention Hardware acceleration Buffer size time cost (seconds) time cost (seconds) Accel. 100 KB 0.000845 0.000534 59.1% 1 MB 0.007758 0.004836 59.4% 10 MB 0.076593 0.047682 59.4% 100 MB 0.756734 0.479126 58.5% 1000 MB 7.563841 4.778266 58.5% Signed-off-by: Min Zhou <zhoumin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-05-01LoongArch: Add checksum optimization for 64-bit systemBibo Mao
LoongArch platform is 64-bit system, which supports 8-bytes memory accessing, but generic checksum functions use 4-byte memory access. So add 8-bytes memory access optimization for checksum functions on LoongArch. And the code comes from arm64 system. When network hw checksum is disabled, iperf performance improves about 10% with this patch. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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