mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-09 14:56:54 -04:00
18db466a9a
Commit9401f4e46c("powerpc: Use lwarx/ldarx directly instead of PPC_LWARX/LDARX macros") properly handled the eh field of lwarx in asm/bitops.h but failed to clear it for PPC32 in asm/simple_spinlock.h So, do as in arch_atomic_try_cmpxchg_lock(), set it to 1 if PPC64 but set it to 0 if PPC32. For that use IS_ENABLED(CONFIG_PPC64) which returns 1 when CONFIG_PPC64 is set and 0 otherwise. Fixes:9401f4e46c("powerpc: Use lwarx/ldarx directly instead of PPC_LWARX/LDARX macros") Cc: stable@vger.kernel.org # v5.15+ Reported-by: Pali Rohár <pali@kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Pali Rohár <pali@kernel.org> Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org> [mpe: Use symbolic names, use 'n' constraint per Segher] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/a1176e19e627dd6a1b8d24c6c457a8ab874b7d12.1659430931.git.christophe.leroy@csgroup.eu
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.