#ifndef _LINUX_SWAB_H
#define _LINUX_SWAB_H
-#include <linux/types.h>
-#include <linux/compiler.h>
-#include <asm/swab.h>
+#include <uapi/linux/swab.h>
-/*
- * casts are necessary for constants, because we never know how for sure
- * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way.
- */
-#define ___constant_swab16(x) ((__u16)( \
- (((__u16)(x) & (__u16)0x00ffU) << 8) | \
- (((__u16)(x) & (__u16)0xff00U) >> 8)))
-
-#define ___constant_swab32(x) ((__u32)( \
- (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
- (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
- (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
- (((__u32)(x) & (__u32)0xff000000UL) >> 24)))
-
-#define ___constant_swab64(x) ((__u64)( \
- (((__u64)(x) & (__u64)0x00000000000000ffULL) << 56) | \
- (((__u64)(x) & (__u64)0x000000000000ff00ULL) << 40) | \
- (((__u64)(x) & (__u64)0x0000000000ff0000ULL) << 24) | \
- (((__u64)(x) & (__u64)0x00000000ff000000ULL) << 8) | \
- (((__u64)(x) & (__u64)0x000000ff00000000ULL) >> 8) | \
- (((__u64)(x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
- (((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) | \
- (((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56)))
-
-#define ___constant_swahw32(x) ((__u32)( \
- (((__u32)(x) & (__u32)0x0000ffffUL) << 16) | \
- (((__u32)(x) & (__u32)0xffff0000UL) >> 16)))
-
-#define ___constant_swahb32(x) ((__u32)( \
- (((__u32)(x) & (__u32)0x00ff00ffUL) << 8) | \
- (((__u32)(x) & (__u32)0xff00ff00UL) >> 8)))
-
-/*
- * Implement the following as inlines, but define the interface using
- * macros to allow constant folding when possible:
- * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
- */
-
-static inline __attribute_const__ __u16 __fswab16(__u16 val)
-{
-#ifdef __arch_swab16
- return __arch_swab16(val);
-#else
- return ___constant_swab16(val);
-#endif
-}
-
-static inline __attribute_const__ __u32 __fswab32(__u32 val)
-{
-#ifdef __arch_swab32
- return __arch_swab32(val);
-#else
- return ___constant_swab32(val);
-#endif
-}
-
-static inline __attribute_const__ __u64 __fswab64(__u64 val)
-{
-#ifdef __arch_swab64
- return __arch_swab64(val);
-#elif defined(__SWAB_64_THRU_32__)
- __u32 h = val >> 32;
- __u32 l = val & ((1ULL << 32) - 1);
- return (((__u64)__fswab32(l)) << 32) | ((__u64)(__fswab32(h)));
-#else
- return ___constant_swab64(val);
-#endif
-}
-
-static inline __attribute_const__ __u32 __fswahw32(__u32 val)
-{
-#ifdef __arch_swahw32
- return __arch_swahw32(val);
-#else
- return ___constant_swahw32(val);
-#endif
-}
-
-static inline __attribute_const__ __u32 __fswahb32(__u32 val)
-{
-#ifdef __arch_swahb32
- return __arch_swahb32(val);
-#else
- return ___constant_swahb32(val);
-#endif
-}
-
-/**
- * __swab16 - return a byteswapped 16-bit value
- * @x: value to byteswap
- */
-#define __swab16(x) \
- (__builtin_constant_p((__u16)(x)) ? \
- ___constant_swab16(x) : \
- __fswab16(x))
-
-/**
- * __swab32 - return a byteswapped 32-bit value
- * @x: value to byteswap
- */
-#define __swab32(x) \
- (__builtin_constant_p((__u32)(x)) ? \
- ___constant_swab32(x) : \
- __fswab32(x))
-
-/**
- * __swab64 - return a byteswapped 64-bit value
- * @x: value to byteswap
- */
-#define __swab64(x) \
- (__builtin_constant_p((__u64)(x)) ? \
- ___constant_swab64(x) : \
- __fswab64(x))
-
-/**
- * __swahw32 - return a word-swapped 32-bit value
- * @x: value to wordswap
- *
- * __swahw32(0x12340000) is 0x00001234
- */
-#define __swahw32(x) \
- (__builtin_constant_p((__u32)(x)) ? \
- ___constant_swahw32(x) : \
- __fswahw32(x))
-
-/**
- * __swahb32 - return a high and low byte-swapped 32-bit value
- * @x: value to byteswap
- *
- * __swahb32(0x12345678) is 0x34127856
- */
-#define __swahb32(x) \
- (__builtin_constant_p((__u32)(x)) ? \
- ___constant_swahb32(x) : \
- __fswahb32(x))
-
-/**
- * __swab16p - return a byteswapped 16-bit value from a pointer
- * @p: pointer to a naturally-aligned 16-bit value
- */
-static inline __u16 __swab16p(const __u16 *p)
-{
-#ifdef __arch_swab16p
- return __arch_swab16p(p);
-#else
- return __swab16(*p);
-#endif
-}
-
-/**
- * __swab32p - return a byteswapped 32-bit value from a pointer
- * @p: pointer to a naturally-aligned 32-bit value
- */
-static inline __u32 __swab32p(const __u32 *p)
-{
-#ifdef __arch_swab32p
- return __arch_swab32p(p);
-#else
- return __swab32(*p);
-#endif
-}
-
-/**
- * __swab64p - return a byteswapped 64-bit value from a pointer
- * @p: pointer to a naturally-aligned 64-bit value
- */
-static inline __u64 __swab64p(const __u64 *p)
-{
-#ifdef __arch_swab64p
- return __arch_swab64p(p);
-#else
- return __swab64(*p);
-#endif
-}
-
-/**
- * __swahw32p - return a wordswapped 32-bit value from a pointer
- * @p: pointer to a naturally-aligned 32-bit value
- *
- * See __swahw32() for details of wordswapping.
- */
-static inline __u32 __swahw32p(const __u32 *p)
-{
-#ifdef __arch_swahw32p
- return __arch_swahw32p(p);
-#else
- return __swahw32(*p);
-#endif
-}
-
-/**
- * __swahb32p - return a high and low byteswapped 32-bit value from a pointer
- * @p: pointer to a naturally-aligned 32-bit value
- *
- * See __swahb32() for details of high/low byteswapping.
- */
-static inline __u32 __swahb32p(const __u32 *p)
-{
-#ifdef __arch_swahb32p
- return __arch_swahb32p(p);
-#else
- return __swahb32(*p);
-#endif
-}
-
-/**
- * __swab16s - byteswap a 16-bit value in-place
- * @p: pointer to a naturally-aligned 16-bit value
- */
-static inline void __swab16s(__u16 *p)
-{
-#ifdef __arch_swab16s
- __arch_swab16s(p);
-#else
- *p = __swab16p(p);
-#endif
-}
-/**
- * __swab32s - byteswap a 32-bit value in-place
- * @p: pointer to a naturally-aligned 32-bit value
- */
-static inline void __swab32s(__u32 *p)
-{
-#ifdef __arch_swab32s
- __arch_swab32s(p);
-#else
- *p = __swab32p(p);
-#endif
-}
-
-/**
- * __swab64s - byteswap a 64-bit value in-place
- * @p: pointer to a naturally-aligned 64-bit value
- */
-static inline void __swab64s(__u64 *p)
-{
-#ifdef __arch_swab64s
- __arch_swab64s(p);
-#else
- *p = __swab64p(p);
-#endif
-}
-
-/**
- * __swahw32s - wordswap a 32-bit value in-place
- * @p: pointer to a naturally-aligned 32-bit value
- *
- * See __swahw32() for details of wordswapping
- */
-static inline void __swahw32s(__u32 *p)
-{
-#ifdef __arch_swahw32s
- __arch_swahw32s(p);
-#else
- *p = __swahw32p(p);
-#endif
-}
-
-/**
- * __swahb32s - high and low byteswap a 32-bit value in-place
- * @p: pointer to a naturally-aligned 32-bit value
- *
- * See __swahb32() for details of high and low byte swapping
- */
-static inline void __swahb32s(__u32 *p)
-{
-#ifdef __arch_swahb32s
- __arch_swahb32s(p);
-#else
- *p = __swahb32p(p);
-#endif
-}
-
-#ifdef __KERNEL__
# define swab16 __swab16
# define swab32 __swab32
# define swab64 __swab64
# define swab64s __swab64s
# define swahw32s __swahw32s
# define swahb32s __swahb32s
-#endif /* __KERNEL__ */
-
#endif /* _LINUX_SWAB_H */
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