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arm64: atomics: Undefine internal macros after use

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We use a bunch of internal macros when constructing our atomic and
cmpxchg routines in order to save on boilerplate. Avoid exposing these
directly to users of the header files.

Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Will Deacon 2019-08-29 14:33:23 +01:00
parent b32baf91f6
commit 5aad6cdabb
2 changed files with 11 additions and 0 deletions
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7
arch/arm64/include/asm/atomic.h
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@ -32,6 +32,7 @@ ATOMIC_OP(atomic_add)
ATOMIC_OP(atomic_and) ATOMIC_OP(atomic_and)
ATOMIC_OP(atomic_sub) ATOMIC_OP(atomic_sub)
#undef ATOMIC_OP
#define ATOMIC_FETCH_OP(name, op) \ #define ATOMIC_FETCH_OP(name, op) \
static inline int arch_##op##name(int i, atomic_t *v) \ static inline int arch_##op##name(int i, atomic_t *v) \
@ -54,6 +55,8 @@ ATOMIC_FETCH_OPS(atomic_fetch_sub)
ATOMIC_FETCH_OPS(atomic_add_return) ATOMIC_FETCH_OPS(atomic_add_return)
ATOMIC_FETCH_OPS(atomic_sub_return) ATOMIC_FETCH_OPS(atomic_sub_return)
#undef ATOMIC_FETCH_OP
#undef ATOMIC_FETCH_OPS
#define ATOMIC64_OP(op) \ #define ATOMIC64_OP(op) \
static inline void arch_##op(long i, atomic64_t *v) \ static inline void arch_##op(long i, atomic64_t *v) \
@ -68,6 +71,7 @@ ATOMIC64_OP(atomic64_add)
ATOMIC64_OP(atomic64_and) ATOMIC64_OP(atomic64_and)
ATOMIC64_OP(atomic64_sub) ATOMIC64_OP(atomic64_sub)
#undef ATOMIC64_OP
#define ATOMIC64_FETCH_OP(name, op) \ #define ATOMIC64_FETCH_OP(name, op) \
static inline long arch_##op##name(long i, atomic64_t *v) \ static inline long arch_##op##name(long i, atomic64_t *v) \
@ -90,6 +94,9 @@ ATOMIC64_FETCH_OPS(atomic64_fetch_sub)
ATOMIC64_FETCH_OPS(atomic64_add_return) ATOMIC64_FETCH_OPS(atomic64_add_return)
ATOMIC64_FETCH_OPS(atomic64_sub_return) ATOMIC64_FETCH_OPS(atomic64_sub_return)
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_FETCH_OPS
static inline long arch_atomic64_dec_if_positive(atomic64_t *v) static inline long arch_atomic64_dec_if_positive(atomic64_t *v)
{ {
return __lse_ll_sc_body(atomic64_dec_if_positive, v); return __lse_ll_sc_body(atomic64_dec_if_positive, v);

4
arch/arm64/include/asm/cmpxchg.h
View File

@ -129,6 +129,8 @@ __CMPXCHG_CASE(mb_, 16)
__CMPXCHG_CASE(mb_, 32) __CMPXCHG_CASE(mb_, 32)
__CMPXCHG_CASE(mb_, 64) __CMPXCHG_CASE(mb_, 64)
#undef __CMPXCHG_CASE
#define __CMPXCHG_DBL(name) \ #define __CMPXCHG_DBL(name) \
static inline long __cmpxchg_double##name(unsigned long old1, \ static inline long __cmpxchg_double##name(unsigned long old1, \
unsigned long old2, \ unsigned long old2, \
@ -143,6 +145,8 @@ static inline long __cmpxchg_double##name(unsigned long old1, \
__CMPXCHG_DBL( ) __CMPXCHG_DBL( )
__CMPXCHG_DBL(_mb) __CMPXCHG_DBL(_mb)
#undef __CMPXCHG_DBL
#define __CMPXCHG_GEN(sfx) \ #define __CMPXCHG_GEN(sfx) \
static inline unsigned long __cmpxchg##sfx(volatile void *ptr, \ static inline unsigned long __cmpxchg##sfx(volatile void *ptr, \
unsigned long old, \ unsigned long old, \