diff options
-rw-r--r-- | arch/arm64/include/asm/cmpxchg.h | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h index 3914c0dcd09c..56166d7f4a25 100644 --- a/arch/arm64/include/asm/cmpxchg.h +++ b/arch/arm64/include/asm/cmpxchg.h | |||
@@ -158,17 +158,23 @@ static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old, | |||
158 | return ret; | 158 | return ret; |
159 | } | 159 | } |
160 | 160 | ||
161 | #define cmpxchg(ptr,o,n) \ | 161 | #define cmpxchg(ptr, o, n) \ |
162 | ((__typeof__(*(ptr)))__cmpxchg_mb((ptr), \ | 162 | ({ \ |
163 | (unsigned long)(o), \ | 163 | __typeof__(*(ptr)) __ret; \ |
164 | (unsigned long)(n), \ | 164 | __ret = (__typeof__(*(ptr))) \ |
165 | sizeof(*(ptr)))) | 165 | __cmpxchg_mb((ptr), (unsigned long)(o), (unsigned long)(n), \ |
166 | 166 | sizeof(*(ptr))); \ | |
167 | #define cmpxchg_local(ptr,o,n) \ | 167 | __ret; \ |
168 | ((__typeof__(*(ptr)))__cmpxchg((ptr), \ | 168 | }) |
169 | (unsigned long)(o), \ | 169 | |
170 | (unsigned long)(n), \ | 170 | #define cmpxchg_local(ptr, o, n) \ |
171 | sizeof(*(ptr)))) | 171 | ({ \ |
172 | __typeof__(*(ptr)) __ret; \ | ||
173 | __ret = (__typeof__(*(ptr))) \ | ||
174 | __cmpxchg((ptr), (unsigned long)(o), \ | ||
175 | (unsigned long)(n), sizeof(*(ptr))); \ | ||
176 | __ret; \ | ||
177 | }) | ||
172 | 178 | ||
173 | #define cmpxchg64(ptr,o,n) cmpxchg((ptr),(o),(n)) | 179 | #define cmpxchg64(ptr,o,n) cmpxchg((ptr),(o),(n)) |
174 | #define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr),(o),(n)) | 180 | #define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr),(o),(n)) |