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| author | David S. Miller <davem@davemloft.net> | 2018-04-03 08:24:35 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:50:42 +0200 |
| commit | 8e02caa11752874beaa9e1a7c3c4a99f3dda4571 (patch) | |
| tree | ed49fb617b347026dc750f48f0cfa7844e17d3fa /arch/sparc/include | |
| parent | 9397f74deff9cddae7a62fd50d3e546858bf4951 (diff) | |
| download | linux-stable-8e02caa11752874beaa9e1a7c3c4a99f3dda4571.tar.gz linux-stable-8e02caa11752874beaa9e1a7c3c4a99f3dda4571.tar.bz2 linux-stable-8e02caa11752874beaa9e1a7c3c4a99f3dda4571.zip | |
sparc64: Make atomic_xchg() an inline function rather than a macro.
[ Upstream commit d13864b68e41c11e4231de90cf358658f6ecea45 ]
This avoids a lot of -Wunused warnings such as:
====================
kernel/debug/debug_core.c: In function ‘kgdb_cpu_enter’:
./arch/sparc/include/asm/cmpxchg_64.h:55:22: warning: value computed is not used [-Wunused-value]
#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
./arch/sparc/include/asm/atomic_64.h:86:30: note: in expansion of macro ‘xchg’
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
^~~~
kernel/debug/debug_core.c:508:4: note: in expansion of macro ‘atomic_xchg’
atomic_xchg(&kgdb_active, cpu);
^~~~~~~~~~~
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/sparc/include')
| -rw-r--r-- | arch/sparc/include/asm/atomic_64.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h index 24827a3f733a..89d299ccdfa6 100644 --- a/arch/sparc/include/asm/atomic_64.h +++ b/arch/sparc/include/asm/atomic_64.h @@ -82,7 +82,11 @@ ATOMIC_OPS(xor) #define atomic64_add_negative(i, v) (atomic64_add_return(i, v) < 0) #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) + +static inline int atomic_xchg(atomic_t *v, int new) +{ + return xchg(&v->counter, new); +} static inline int __atomic_add_unless(atomic_t *v, int a, int u) { |