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authorMark Rutland <mark.rutland@arm.com>2021-05-25 15:02:00 +0100
committerPeter Zijlstra <peterz@infradead.org>2021-05-26 13:20:49 +0200
commit9be85de97786a75f62080de1c0c13656f65cba84 (patch)
treefda5463211f1e92135081ba872293f7ebad868e4 /arch/arm64/include/asm/atomic.h
parenta82adc7650044b5555d65078bda07866efa4a73d (diff)
downloadlinux-9be85de97786a75f62080de1c0c13656f65cba84.tar.bz2
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/arm64/include/asm/atomic.h')
-rw-r--r--arch/arm64/include/asm/atomic.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
index b56a4b2bc248..c9979273d389 100644
--- a/arch/arm64/include/asm/atomic.h
+++ b/arch/arm64/include/asm/atomic.h
@@ -223,6 +223,4 @@ static __always_inline long arch_atomic64_dec_if_positive(atomic64_t *v)
#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
-#define ARCH_ATOMIC
-
#endif /* __ASM_ATOMIC_H */