locking/atomic/x86: Define arch_atomic_sub() family using arch_atomic_add() functions
authorUros Bizjak <ubizjak@gmail.com>
Wed, 10 Apr 2024 06:29:36 +0000 (08:29 +0200)
committerIngo Molnar <mingo@kernel.org>
Wed, 10 Apr 2024 13:04:55 +0000 (15:04 +0200)
commit21689e4bfb9ae8f8b45279c53faecaa5a056ffa5
treed73b2d30b3158bfa9ddf08bcae7094ff71af8b4f
parent95ece48165c136b96fae0f6144f55cbf8b24aeb9
locking/atomic/x86: Define arch_atomic_sub() family using arch_atomic_add() functions

There is no need to implement arch_atomic_sub() family of inline
functions, corresponding macros can be directly implemented using
arch_atomic_add() inlines with negated argument.

No functional changes intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20240410062957.322614-4-ubizjak@gmail.com
arch/x86/include/asm/atomic.h
arch/x86/include/asm/atomic64_64.h