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| author | James Morris <jmorris@namei.org> | 2008-08-28 10:47:34 +1000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2008-08-28 10:47:34 +1000 |
| commit | 86d688984deefa3ae5a802880c11f2b408b5d6cf (patch) | |
| tree | 7ea5e8189b0a774626d3ed7c3c87df2495a4c4a0 /arch/avr32/include/asm/byteorder.h | |
| parent | 93c06cbbf9fea5d5be1778febb7fa9ab1a74e5f5 (diff) | |
| parent | 4c246edd2550304df5b766cc841584b2bb058843 (diff) | |
Merge branch 'master' into next
Diffstat (limited to 'arch/avr32/include/asm/byteorder.h')
| -rw-r--r-- | arch/avr32/include/asm/byteorder.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/byteorder.h b/arch/avr32/include/asm/byteorder.h new file mode 100644 index 00000000000..d77b48ba733 --- /dev/null +++ b/arch/avr32/include/asm/byteorder.h @@ -0,0 +1,31 @@ +/* + * AVR32 endian-conversion functions. + */ +#ifndef __ASM_AVR32_BYTEORDER_H +#define __ASM_AVR32_BYTEORDER_H + +#include <asm/types.h> +#include <linux/compiler.h> + +#ifdef __CHECKER__ +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__ +# define __SWAB_64_THRU_32__ +#endif + +#include <linux/byteorder/big_endian.h> + +#endif /* __ASM_AVR32_BYTEORDER_H */ |