292b4d0978
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
36 lines
772 B
C
36 lines
772 B
C
/*
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* AVR32 byteswapping functions.
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*/
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#ifndef __ASM_AVR32_SWAB_H
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#define __ASM_AVR32_SWAB_H
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#include <asm/types.h>
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#include <linux/compiler.h>
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#define __SWAB_64_THRU_32__
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#ifdef __CHECKER__
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extern unsigned long __builtin_bswap_32(unsigned long x);
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extern unsigned short __builtin_bswap_16(unsigned short x);
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#endif
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/*
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* avr32-linux-gcc versions earlier than 4.2 improperly sign-extends
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* the result.
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*/
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#if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2)
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static inline __attribute_const__ __u16 __arch_swab16(__u16 val)
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{
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return __builtin_bswap_16(val);
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}
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#define __arch_swab16 __arch_swab16
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static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
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{
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return __builtin_bswap_32(val);
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}
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#define __arch_swab32 __arch_swab32
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#endif
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#endif /* __ASM_AVR32_SWAB_H */
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