diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-08-02 11:02:36 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-08-10 15:27:44 +1000 |
| commit | 18db466a9a306406dab3b134014d9f6ed642471c (patch) | |
| tree | 6f17e6afc83278e1bbc24ade72aeff12d9930221 /include/linux/overflow.h | |
| parent | cae4199f9319f42534ee2e2e4aadf183b9bb7f73 (diff) | |
powerpc: Fix eh field when calling lwarx on PPC32
Commit 9401f4e46cf6 ("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: 9401f4e46cf6 ("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
Diffstat (limited to 'include/linux/overflow.h')
0 files changed, 0 insertions, 0 deletions