#
37d1a04b |
| 11-Jun-2020 |
Thomas Gleixner <tglx@linutronix.de> |
Rebase locking/kcsan to locking/urgent
Merge the state of the locking kcsan branch before the read/write_once() and the atomics modifications got merged.
Squash the fallout of the rebase on top of
Rebase locking/kcsan to locking/urgent
Merge the state of the locking kcsan branch before the read/write_once() and the atomics modifications got merged.
Squash the fallout of the rebase on top of the read/write once and atomic fallback work into the merge. The history of the original branch is preserved in tag locking-kcsan-2020-06-02.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Revision tags: v5.7, v5.7-rc7, v5.7-rc6, v5.7-rc5, v5.7-rc4, v5.7-rc3, v5.7-rc2, v5.7-rc1, v5.6, v5.6-rc7, v5.6-rc6, v5.6-rc5, v5.6-rc4, v5.6-rc3, v5.6-rc2, v5.6-rc1, v5.5, v5.5-rc7, v5.5-rc6, v5.5-rc5, v5.5-rc4, v5.5-rc3, v5.5-rc2, v5.5-rc1, v5.4 |
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#
8e1d58ae |
| 19-Nov-2019 |
Ingo Molnar <mingo@kernel.org> |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/kcsan
Pull the KCSAN subsystem from Paul E. McKenney:
"This pull request contains base ke
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/kcsan
Pull the KCSAN subsystem from Paul E. McKenney:
"This pull request contains base kernel concurrency sanitizer (KCSAN) enablement for x86, courtesy of Marco Elver. KCSAN is a sampling watchpoint-based data-race detector, and is documented in Documentation/dev-tools/kcsan.rst. KCSAN was announced in September, and much feedback has since been incorporated:
http://lkml.kernel.org/r/CANpmjNPJ_bHjfLZCAPV23AXFfiPiyXXqqu72n6TgWzb2Gnu1eA@mail.gmail.com
The data races located thus far have resulted in a number of fixes:
https://github.com/google/ktsan/wiki/KCSAN#upstream-fixes-of-data-races-found-by-kcsan
Additional information may be found here:
https://lore.kernel.org/lkml/20191114180303.66955-1-elver@google.com/ "
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v5.4-rc8 |
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#
40d04110 |
| 14-Nov-2019 |
Marco Elver <elver@google.com> |
x86, kcsan: Enable KCSAN for x86
This patch enables KCSAN for x86, with updates to build rules to not use KCSAN for several incompatible compilation units.
Signed-off-by: Marco Elver <elver@google.
x86, kcsan: Enable KCSAN for x86
This patch enables KCSAN for x86, with updates to build rules to not use KCSAN for several incompatible compilation units.
Signed-off-by: Marco Elver <elver@google.com> Acked-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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Revision tags: v5.4-rc7, v5.4-rc6, v5.4-rc5, v5.4-rc4, v5.4-rc3, v5.4-rc2, v5.4-rc1, v5.3, v5.3-rc8, v5.3-rc7, v5.3-rc6, v5.3-rc5, v5.3-rc4, v5.3-rc3, v5.3-rc2, v5.3-rc1, v5.2, v5.2-rc7, v5.2-rc6, v5.2-rc5, v5.2-rc4, v5.2-rc3, v5.2-rc2, v5.2-rc1, v5.1, v5.1-rc7, v5.1-rc6, v5.1-rc5, v5.1-rc4, v5.1-rc3, v5.1-rc2, v5.1-rc1, v5.0, v5.0-rc8, v5.0-rc7, v5.0-rc6, v5.0-rc5, v5.0-rc4, v5.0-rc3, v5.0-rc2, v5.0-rc1, v4.20, v4.20-rc7, v4.20-rc6, v4.20-rc5, v4.20-rc4, v4.20-rc3, v4.20-rc2, v4.20-rc1, v4.19, v4.19-rc8, v4.19-rc7, v4.19-rc6, v4.19-rc5, v4.19-rc4, v4.19-rc3, v4.19-rc2, v4.19-rc1, v4.18, v4.18-rc8, v4.18-rc7, v4.18-rc6, v4.18-rc5, v4.18-rc4, v4.18-rc3, v4.18-rc2, v4.18-rc1, v4.17, v4.17-rc7, v4.17-rc6, v4.17-rc5, v4.17-rc4, v4.17-rc3, v4.17-rc2, v4.17-rc1, v4.16, v4.16-rc7, v4.16-rc6, v4.16-rc5, v4.16-rc4, v4.16-rc3, v4.16-rc2, v4.16-rc1, v4.15, v4.15-rc9, v4.15-rc8, v4.15-rc7, v4.15-rc6, v4.15-rc5, v4.15-rc4, v4.15-rc3, v4.15-rc2, v4.15-rc1, v4.14, v4.14-rc8, v4.14-rc7, v4.14-rc6, v4.14-rc5, v4.14-rc4, v4.14-rc3, v4.14-rc2, v4.14-rc1, v4.13, v4.13-rc7, v4.13-rc6, v4.13-rc5, v4.13-rc4, v4.13-rc3, v4.13-rc2, v4.13-rc1, v4.12, v4.12-rc7, v4.12-rc6, v4.12-rc5, v4.12-rc4, v4.12-rc3, v4.12-rc2, v4.12-rc1, v4.11, v4.11-rc8, v4.11-rc7, v4.11-rc6, v4.11-rc5, v4.11-rc4, v4.11-rc3, v4.11-rc2, v4.11-rc1, v4.10, v4.10-rc8, v4.10-rc7, v4.10-rc6, v4.10-rc5, v4.10-rc4, v4.10-rc3, v4.10-rc2, v4.10-rc1, v4.9, v4.9-rc8, v4.9-rc7, v4.9-rc6, v4.9-rc5, v4.9-rc4, v4.9-rc3, v4.9-rc2, v4.9-rc1, v4.8, v4.8-rc8, v4.8-rc7, v4.8-rc6, v4.8-rc5, v4.8-rc4, v4.8-rc3, v4.8-rc2, v4.8-rc1, v4.7 |
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#
8c57a5e7 |
| 19-Jul-2016 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'for-linus' into next
Sync up to bring in wacom_w8001 changes to avoid merge conflicts later.
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Revision tags: v4.7-rc7, v4.7-rc6, v4.7-rc5, v4.7-rc4 |
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#
6ea24cf7 |
| 19-Jun-2016 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'cec-defines' into for-linus
Let's bring in HDMI CEC defines to ease merging CEC support in the next merge window.
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Revision tags: v4.7-rc3, v4.7-rc2, v4.7-rc1 |
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#
27fd38c5 |
| 17-May-2016 |
Jiri Kosina <jkosina@suse.cz> |
Merge branches 'for-4.6/upstream-fixes', 'for-4.7/asus', 'for-4.7/hidraw' and 'for-4.7/thingm' into for-linus
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Revision tags: v4.6 |
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#
bae6692c |
| 10-May-2016 |
Luca Coelho <luciano.coelho@intel.com> |
Merge tag 'mac80211-next-for-davem-2016-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next into master
To synchronize with Kalle, here's just a big change that affects all d
Merge tag 'mac80211-next-for-davem-2016-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next into master
To synchronize with Kalle, here's just a big change that affects all drivers - removing the duplicated enum ieee80211_band and replacing it by enum nl80211_band. On top of that, just a small documentation update.
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Revision tags: v4.6-rc7 |
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#
bc0868c6 |
| 03-May-2016 |
Mark Brown <broonie@kernel.org> |
Merge branch 'for-4.7/pwm-regulator' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm into regulator-pwm
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Revision tags: v4.6-rc6 |
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#
1cbc99df |
| 25-Apr-2016 |
Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
Merge back cpufreq changes for v4.7.
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Revision tags: v4.6-rc5 |
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#
9938b044 |
| 18-Apr-2016 |
Jiri Kosina <jkosina@suse.cz> |
Merge branch 'master' into for-next
Sync with Linus' tree so that patches against newer codebase can be applied.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Revision tags: v4.6-rc4 |
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#
889fac6d |
| 13-Apr-2016 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v4.6-rc3' into perf/core, to refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
39702853 |
| 11-Apr-2016 |
Daniel Vetter <daniel.vetter@ffwll.ch> |
Merge tag 'v4.6-rc3' into drm-intel-next-queued
Linux 4.6-rc3
Backmerge requested by Chris Wilson to make his patches apply cleanly. Tiny conflict in vmalloc.c with the (properly acked and all) pat
Merge tag 'v4.6-rc3' into drm-intel-next-queued
Linux 4.6-rc3
Backmerge requested by Chris Wilson to make his patches apply cleanly. Tiny conflict in vmalloc.c with the (properly acked and all) patch in drm-intel-next:
commit 4da56b99d99e5a7df2b7f11e87bfea935f909732 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Mon Apr 4 14:46:42 2016 +0100
mm/vmap: Add a notifier for when we run out of vmap address space
and Linus' tree.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Revision tags: v4.6-rc3 |
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#
4b42fafc |
| 09-Apr-2016 |
Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
Merge branch 'pm-cpufreq-sched' into pm-cpufreq
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#
6ea7e387 |
| 05-Apr-2016 |
James Bottomley <James.Bottomley@HansenPartnership.com> |
Merge branch 'fixes-base' into fixes
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Revision tags: v4.6-rc2 |
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#
1809de7e |
| 30-Mar-2016 |
Tony Lindgren <tony@atomide.com> |
Merge tag 'for-v4.6-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/fixes
ARM: OMAP2+: first hwmod fix for v4.6-rc
Fix a longstanding bug in th
Merge tag 'for-v4.6-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/fixes
ARM: OMAP2+: first hwmod fix for v4.6-rc
Fix a longstanding bug in the hwmod code that could cause hardware SYSCONFIG register values to not match the kernel's idea of what they should be, and that could result in lower performance during IP block idle entry.
Basic build, boot, and PM test logs are available here:
http://www.pwsan.com/omap/testlogs/omap-hwmod-fixes-a-for-v4.6-rc/20160326231727/
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#
16b02d71 |
| 29-Mar-2016 |
Rich Felker <dalias@libc.org> |
Merge tag 'v4.6-rc1'
Linux 4.6-rc1
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#
8041dcc8 |
| 29-Mar-2016 |
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> |
Merge tag 'v4.6-rc1' into for-linus-4.6
Linux 4.6-rc1
* tag 'v4.6-rc1': (12823 commits) Linux 4.6-rc1 f2fs/crypto: fix xts_tweak initialization NTB: Remove _addr functions from ntb_hw_amd o
Merge tag 'v4.6-rc1' into for-linus-4.6
Linux 4.6-rc1
* tag 'v4.6-rc1': (12823 commits) Linux 4.6-rc1 f2fs/crypto: fix xts_tweak initialization NTB: Remove _addr functions from ntb_hw_amd orangefs: fix orangefs_superblock locking orangefs: fix do_readv_writev() handling of error halfway through orangefs: have ->kill_sb() evict the VFS side of things first orangefs: sanitize ->llseek() orangefs-bufmap.h: trim unused junk orangefs: saner calling conventions for getting a slot orangefs_copy_{to,from}_bufmap(): don't pass bufmap pointer orangefs: get rid of readdir_handle_s thp: fix typo in khugepaged_scan_pmd() MAINTAINERS: fill entries for KASAN mm/filemap: generic_file_read_iter(): check for zero reads unconditionally kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2 mm, kasan: stackdepot implementation. Enable stackdepot for SLAB arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections mm, kasan: add GFP flags to KASAN API mm, kasan: SLAB support kasan: modify kmalloc_large_oob_right(), add kmalloc_pagealloc_oob_right() ...
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Revision tags: v4.6-rc1 |
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#
26660a40 |
| 21-Mar-2016 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull 'objtool' stack frame validation from Ingo Molnar: "This tree adds a new kernel build-time object
Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull 'objtool' stack frame validation from Ingo Molnar: "This tree adds a new kernel build-time object file validation feature (ONFIG_STACK_VALIDATION=y): kernel stack frame correctness validation. It was written by and is maintained by Josh Poimboeuf.
The motivation: there's a category of hard to find kernel bugs, most of them in assembly code (but also occasionally in C code), that degrades the quality of kernel stack dumps/backtraces. These bugs are hard to detect at the source code level. Such bugs result in incorrect/incomplete backtraces most of time - but can also in some rare cases result in crashes or other undefined behavior.
The build time correctness checking is done via the new 'objtool' user-space utility that was written for this purpose and which is hosted in the kernel repository in tools/objtool/. The tool's (very simple) UI and source code design is shaped after Git and perf and shares quite a bit of infrastructure with tools/perf (which tooling infrastructure sharing effort got merged via perf and is already upstream). Objtool follows the well-known kernel coding style.
Objtool does not try to check .c or .S files, it instead analyzes the resulting .o generated machine code from first principles: it decodes the instruction stream and interprets it. (Right now objtool supports the x86-64 architecture.)
From tools/objtool/Documentation/stack-validation.txt:
"The kernel CONFIG_STACK_VALIDATION option enables a host tool named objtool which runs at compile time. It has a "check" subcommand which analyzes every .o file and ensures the validity of its stack metadata. It enforces a set of rules on asm code and C inline assembly code so that stack traces can be reliable.
Currently it only checks frame pointer usage, but there are plans to add CFI validation for C files and CFI generation for asm files.
For each function, it recursively follows all possible code paths and validates the correct frame pointer state at each instruction.
It also follows code paths involving special sections, like .altinstructions, __jump_table, and __ex_table, which can add alternative execution paths to a given instruction (or set of instructions). Similarly, it knows how to follow switch statements, for which gcc sometimes uses jump tables."
When this new kernel option is enabled (it's disabled by default), the tool, if it finds any suspicious assembly code pattern, outputs warnings in compiler warning format:
warning: objtool: rtlwifi_rate_mapping()+0x2e7: frame pointer state mismatch warning: objtool: cik_tiling_mode_table_init()+0x6ce: call without frame pointer save/setup warning: objtool:__schedule()+0x3c0: duplicate frame pointer save warning: objtool:__schedule()+0x3fd: sibling call from callable instruction with changed frame pointer
... so that scripts that pick up compiler warnings will notice them. All known warnings triggered by the tool are fixed by the tree, most of the commits in fact prepare the kernel to be warning-free. Most of them are bugfixes or cleanups that stand on their own, but there are also some annotations of 'special' stack frames for justified cases such entries to JIT-ed code (BPF) or really special boot time code.
There are two other long-term motivations behind this tool as well:
- To improve the quality and reliability of kernel stack frames, so that they can be used for optimized live patching.
- To create independent infrastructure to check the correctness of CFI stack frames at build time. CFI debuginfo is notoriously unreliable and we cannot use it in the kernel as-is without extra checking done both on the kernel side and on the build side.
The quality of kernel stack frames matters to debuggability as well, so IMO we can merge this without having to consider the live patching or CFI debuginfo angle"
* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) objtool: Only print one warning per function objtool: Add several performance improvements tools: Copy hashtable.h into tools directory objtool: Fix false positive warnings for functions with multiple switch statements objtool: Rename some variables and functions objtool: Remove superflous INIT_LIST_HEAD objtool: Add helper macros for traversing instructions objtool: Fix false positive warnings related to sibling calls objtool: Compile with debugging symbols objtool: Detect infinite recursion objtool: Prevent infinite recursion in noreturn detection objtool: Detect and warn if libelf is missing and don't break the build tools: Support relative directory path for 'O=' objtool: Support CROSS_COMPILE x86/asm/decoder: Use explicitly signed chars objtool: Enable stack metadata validation on 64-bit x86 objtool: Add CONFIG_STACK_VALIDATION option objtool: Add tool to perform compile-time stack metadata validation x86/kprobes: Mark kretprobe_trampoline() stack frame as non-standard sched: Always inline context_switch() ...
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Revision tags: v4.5, v4.5-rc7 |
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#
c0dd6716 |
| 29-Feb-2016 |
Josh Poimboeuf <jpoimboe@redhat.com> |
objtool: Mark non-standard object files and directories
Code which runs outside the kernel's normal mode of operation often does unusual things which can cause a static analysis tool like objtool to
objtool: Mark non-standard object files and directories
Code which runs outside the kernel's normal mode of operation often does unusual things which can cause a static analysis tool like objtool to emit false positive warnings:
- boot image - vdso image - relocation - realmode - efi - head - purgatory - modpost
Set OBJECT_FILES_NON_STANDARD for their related files and directories, which will tell objtool to skip checking them. It's ok to skip them because they don't affect runtime stack traces.
Also skip the following code which does the right thing with respect to frame pointers, but is too "special" to be validated by a tool:
- entry - mcount
Also skip the test_nx module because it modifies its exception handling table at runtime, which objtool can't understand. Fortunately it's just a test module so it doesn't matter much.
Currently objtool is the only user of OBJECT_FILES_NON_STANDARD, but it might eventually be useful for other tools.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris J Arges <chris.j.arges@canonical.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Pedro Alves <palves@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/366c080e3844e8a5b6a0327dc7e8c2b90ca3baeb.1456719558.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v4.5-rc6 |
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#
e5451c8f |
| 23-Feb-2016 |
Laxman Dewangan <ldewangan@nvidia.com> |
Merge remote-tracking branch 'linusw-gpio/for-next' into devm_gpiochip
Base for demv_gpiochip_add_data() and devm_gpiochip_remove().
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Revision tags: v4.5-rc5, v4.5-rc4, v4.5-rc3, v4.5-rc2, v4.5-rc1, v4.4, v4.4-rc8, v4.4-rc7, v4.4-rc6, v4.4-rc5, v4.4-rc4, v4.4-rc3, v4.4-rc2, v4.4-rc1, v4.3, v4.3-rc7, v4.3-rc6, v4.3-rc5, v4.3-rc4, v4.3-rc3, v4.3-rc2, v4.3-rc1, v4.2, v4.2-rc8, v4.2-rc7, v4.2-rc6, v4.2-rc5, v4.2-rc4, v4.2-rc3, v4.2-rc2, v4.2-rc1, v4.1, v4.1-rc8, v4.1-rc7, v4.1-rc6, v4.1-rc5, v4.1-rc4, v4.1-rc3, v4.1-rc2, v4.1-rc1 |
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#
85a36858 |
| 14-Apr-2015 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.1 merge window.
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#
7ead5b7e |
| 14-Apr-2015 |
Chris Zankel <chris@zankel.net> |
Merge tag 'v4.0' into for_next
Linux 4.0
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#
05f6d025 |
| 13-Apr-2015 |
Jiri Kosina <jkosina@suse.cz> |
Merge branches 'for-4.0/upstream-fixes', 'for-4.1/genius', 'for-4.1/huion-uclogic-merge', 'for-4.1/i2c-hid', 'for-4.1/kconfig-drop-expert-dependency', 'for-4.1/logitech', 'for-4.1/multitouch', 'for-4
Merge branches 'for-4.0/upstream-fixes', 'for-4.1/genius', 'for-4.1/huion-uclogic-merge', 'for-4.1/i2c-hid', 'for-4.1/kconfig-drop-expert-dependency', 'for-4.1/logitech', 'for-4.1/multitouch', 'for-4.1/rmi', 'for-4.1/sony', 'for-4.1/upstream' and 'for-4.1/wacom' into for-linus
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Revision tags: v4.0, v4.0-rc7, v4.0-rc6 |
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#
188933ac |
| 23-Mar-2015 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v4.0-rc5' into next
Merge with the latest upstream to synchronize Synaptics changes and bring in new infrastructure pieces.
Conflicts: drivers/input/mouse/synaptics.c
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#
e1b63dec |
| 23-Mar-2015 |
Ingo Molnar <mingo@kernel.org> |
Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying new patches
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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