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-rw-r--r--include/asm-generic/unaligned.h16
1 files changed, 9 insertions, 7 deletions
diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
index 09ec447fe2af..16a466e50681 100644
--- a/include/asm-generic/unaligned.h
+++ b/include/asm-generic/unaligned.h
@@ -18,7 +18,8 @@
18#define get_unaligned(ptr) \ 18#define get_unaligned(ptr) \
19 __get_unaligned((ptr), sizeof(*(ptr))) 19 __get_unaligned((ptr), sizeof(*(ptr)))
20#define put_unaligned(x,ptr) \ 20#define put_unaligned(x,ptr) \
21 __put_unaligned((__u64)(x), (ptr), sizeof(*(ptr))) 21 ((void)sizeof(*(ptr)=(x)),\
22 __put_unaligned((__force __u64)(x), (ptr), sizeof(*(ptr))))
22 23
23/* 24/*
24 * This function doesn't actually exist. The idea is that when 25 * This function doesn't actually exist. The idea is that when
@@ -95,21 +96,21 @@ static inline void __ustw(__u16 val, __u16 *addr)
95 default: \ 96 default: \
96 bad_unaligned_access_length(); \ 97 bad_unaligned_access_length(); \
97 }; \ 98 }; \
98 (__typeof__(*(ptr)))val; \ 99 (__force __typeof__(*(ptr)))val; \
99}) 100})
100 101
101#define __put_unaligned(val, ptr, size) \ 102#define __put_unaligned(val, ptr, size) \
102do { \ 103({ \
103 void *__gu_p = ptr; \ 104 void *__gu_p = ptr; \
104 switch (size) { \ 105 switch (size) { \
105 case 1: \ 106 case 1: \
106 *(__u8 *)__gu_p = val; \ 107 *(__u8 *)__gu_p = (__force __u8)val; \
107 break; \ 108 break; \
108 case 2: \ 109 case 2: \
109 __ustw(val, __gu_p); \ 110 __ustw((__force __u16)val, __gu_p); \
110 break; \ 111 break; \
111 case 4: \ 112 case 4: \
112 __ustl(val, __gu_p); \ 113 __ustl((__force __u32)val, __gu_p); \
113 break; \ 114 break; \
114 case 8: \ 115 case 8: \
115 __ustq(val, __gu_p); \ 116 __ustq(val, __gu_p); \
@@ -117,6 +118,7 @@ do { \
117 default: \ 118 default: \
118 bad_unaligned_access_length(); \ 119 bad_unaligned_access_length(); \
119 }; \ 120 }; \
120} while(0) 121 (void)0; \
122})
121 123
122#endif /* _ASM_GENERIC_UNALIGNED_H */ 124#endif /* _ASM_GENERIC_UNALIGNED_H */