pm24.git/scripts/atomic/check-atomics.sh, branch v5.6-rc4

locking/atomics: Use sed(1) instead of non-standard head(1) option

2019-06-25T08:17:07Z

POSIX says the -n option must be a positive decimal integer. Not all implementations of head(1) support negative numbers meaning offset from the end of the file. Instead, the sed expression '$d' has the same effect of removing the last line of the file. Signed-off-by: Michael Forney Signed-off-by: Peter Zijlstra (Intel) Acked-by: Will Deacon Cc: Boqun Feng Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190618053306.730-1-mforney@mforney.org Signed-off-by: Ingo Molnar

locking/atomics: Check atomic headers with sha1sum

2019-02-13T07:07:31Z

We currently check the atomic headers at build-time to ensure they haven't been modified directly, and these checks require regenerating the headers in full. As this takes a few seconds, even when parallelized, this is too slow to run for every kernel build. Instead, we can generate a hash of each header as we generate them, which we can cheaply check at build time (~0.16s for all headers). This patch does so, updating headers with their hashes using the new gen-atomics.sh script. As some users apparently build the kernel wihout coreutils, lacking sha1sum, the checks are skipped in this case. Presumably, most developers have a working coreutils installation. Signed-off-by: Mark Rutland Acked-by: Will Deacon Cc: Andrew Morton Cc: Boqun Feng Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: anders.roxell@linaro.org Cc: linux-kernel@vger.kernel.rg Cc: naresh.kamboju@linaro.org Signed-off-by: Ingo Molnar

locking/atomics: Fix scripts/atomic/ script permissions

2018-11-01T11:45:46Z

Mark all these scripts executable. Cc: Mark Rutland Cc: Peter Zijlstra (Intel) Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: Catalin Marinas Cc: linuxdrivers@attotech.com Cc: dvyukov@google.com Cc: boqun.feng@gmail.com Cc: arnd@arndb.de Cc: aryabinin@virtuozzo.com Cc: glider@google.com Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

locking/atomics: Check generated headers are up-to-date

2018-11-01T10:01:10Z

Now that all the generated atomic headers are in place, it would be good to ensure that: a) the headers are up-to-date when scripting changes. b) developers don't directly modify the generated headers. To ensure both of these properties, let's add a Kbuild step to check that the generated headers are up-to-date. Signed-off-by: Mark Rutland Signed-off-by: Peter Zijlstra (Intel) Cc: linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com Cc: Will Deacon Cc: linuxdrivers@attotech.com Cc: dvyukov@google.com Cc: Boqun Feng Cc: arnd@arndb.de Cc: aryabinin@virtuozzo.com Cc: glider@google.com Link: http://lkml.kernel.org/r/20180904104830.2975-6-mark.rutland@arm.com Signed-off-by: Ingo Molnar