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| author | Paul Mackerras <paulus@samba.org> | 2008-04-14 15:11:02 +0400 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-04-14 15:11:02 +0400 |
| commit | ac7c5353b189e10cf5dd27399f64f7b013abffc6 (patch) | |
| tree | 8222d92b774c256d6ec4399c716d76b3f05ddc4b /include/asm-avr32/byteorder.h | |
| parent | a8f75ea70c58546205fb7673be41455b9da5d9a7 (diff) | |
| parent | 120dd64cacd4fb796bca0acba3665553f1d9ecaa (diff) | |
| download | linux-ac7c5353b189e10cf5dd27399f64f7b013abffc6.tar.xz | |
Merge branch 'linux-2.6'
Diffstat (limited to 'include/asm-avr32/byteorder.h')
| -rw-r--r-- | include/asm-avr32/byteorder.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-avr32/byteorder.h b/include/asm-avr32/byteorder.h index 402ff4125cdc..d77b48ba7338 100644 --- a/include/asm-avr32/byteorder.h +++ b/include/asm-avr32/byteorder.h @@ -12,8 +12,14 @@ extern unsigned long __builtin_bswap_32(unsigned long x); extern unsigned short __builtin_bswap_16(unsigned short x); #endif +/* + * avr32-linux-gcc versions earlier than 4.2 improperly sign-extends + * the result. + */ +#if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2) #define __arch__swab32(x) __builtin_bswap_32(x) #define __arch__swab16(x) __builtin_bswap_16(x) +#endif #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) # define __BYTEORDER_HAS_U64__ |