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author | Mark Rutland <mark.rutland@arm.com> | 2021-05-25 17:02:00 +0300 |
---|---|---|
committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-26 14:20:49 +0300 |
commit | 9be85de97786a75f62080de1c0c13656f65cba84 (patch) | |
tree | fda5463211f1e92135081ba872293f7ebad868e4 /arch/s390/include/asm/atomic.h | |
parent | a82adc7650044b5555d65078bda07866efa4a73d (diff) | |
download | linux-9be85de97786a75f62080de1c0c13656f65cba84.tar.xz |
locking/atomic: make ARCH_ATOMIC a Kconfig symbol
Subsequent patches will move architectures over to the ARCH_ATOMIC API,
after preparing the asm-generic atomic implementations to function with
or without ARCH_ATOMIC.
As some architectures use the asm-generic implementations exclusively
(and don't have a local atomic.h), and to avoid the risk that
ARCH_ATOMIC isn't defined in some cases we expect, let's make the
ARCH_ATOMIC macro a Kconfig symbol instead, so that we can guarantee it
is consistently available where needed.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210525140232.53872-2-mark.rutland@arm.com
Diffstat (limited to 'arch/s390/include/asm/atomic.h')
-rw-r--r-- | arch/s390/include/asm/atomic.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h index 7c93c6573524..7138d189cc42 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -147,6 +147,4 @@ ATOMIC64_OPS(xor) #define arch_atomic64_fetch_sub(_i, _v) arch_atomic64_fetch_add(-(s64)(_i), _v) #define arch_atomic64_sub(_i, _v) arch_atomic64_add(-(s64)(_i), _v) -#define ARCH_ATOMIC - #endif /* __ARCH_S390_ATOMIC__ */ |