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[PATCH] __get_unaligned() gcc-4 fix

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If the 'ptr' is a const, this code cause "assignment of read-only variable"
error on gcc 4.x.

Use __u64 instead of __typeof__(*(ptr)) for temporary variable to get
rid of errors on gcc 4.x.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Atsushi Nemoto 2006-03-07 21:55:28 -08:00 • committed by Linus Torvalds
parent 81c29a857d
commit 707ced0d71
1 changed files with 2 additions and 2 deletions
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4
include/asm-generic/unaligned.h
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@ -78,7 +78,7 @@ static inline void __ustw(__u16 val, __u16 *addr)
#define __get_unaligned(ptr, size) ({ \ #define __get_unaligned(ptr, size) ({ \
const void *__gu_p = ptr; \ const void *__gu_p = ptr; \
__typeof__(*(ptr)) val; \ __u64 val; \
switch (size) { \ switch (size) { \
case 1: \ case 1: \
val = *(const __u8 *)__gu_p; \ val = *(const __u8 *)__gu_p; \
@ -95,7 +95,7 @@ static inline void __ustw(__u16 val, __u16 *addr)
default: \ default: \
bad_unaligned_access_length(); \ bad_unaligned_access_length(); \
}; \ }; \
val; \ (__typeof__(*(ptr)))val; \
}) })
#define __put_unaligned(val, ptr, size) \ #define __put_unaligned(val, ptr, size) \