forked from luck/tmp_suning_uos_patched
bafe68034e
gcc versions earlier than 4.2 sign-extends the result of le16_to_cpu() and friends when we implement __arch__swabX() using __builtin_bswap_X(). Disable our arch-specific optimizations when those gcc versions are being used. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
32 lines
744 B
C
32 lines
744 B
C
/*
|
|
* 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 */
|