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Commit 637b180c authored by Harvey Harrison's avatar Harvey Harrison Committed by Linus Torvalds
Browse files

byteorder: remove the now unused byteorder.h 



This implementation caused problems in userspace which can, and does
define _both_ __LITTLE_ENDIAN and __BIG_ENDIAN.

Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5cbd04ae

include/linux/Kbuild

+0 −1
Original line number Diff line number Diff line
@@ -179,7 +179,6 @@ unifdef-y += auto_fs.h 
unifdef-y += auxvec.h

unifdef-y += binfmts.h

unifdef-y += blktrace_api.h

unifdef-y += byteorder.h

unifdef-y += capability.h

unifdef-y += capi.h

unifdef-y += cciss_ioctl.h

include/linux/byteorder.h

deleted100644 → 0
+0 −372
Original line number Diff line number Diff line 
#ifndef _LINUX_BYTEORDER_H

#define _LINUX_BYTEORDER_H



#include <linux/types.h>

#include <linux/swab.h>



#if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN)

# error Fix asm/byteorder.h to define one endianness

#endif



#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)

# error Fix asm/byteorder.h to define arch endianness

#endif



#ifdef __LITTLE_ENDIAN

# undef __LITTLE_ENDIAN

# define __LITTLE_ENDIAN 1234

#endif



#ifdef __BIG_ENDIAN

# undef __BIG_ENDIAN

# define __BIG_ENDIAN 4321

#endif



#if defined(__LITTLE_ENDIAN) && !defined(__LITTLE_ENDIAN_BITFIELD)

# define __LITTLE_ENDIAN_BITFIELD

#endif



#if defined(__BIG_ENDIAN) && !defined(__BIG_ENDIAN_BITFIELD)

# define __BIG_ENDIAN_BITFIELD

#endif



#ifdef __LITTLE_ENDIAN

# define __le16_to_cpu(x) ((__force __u16)(__le16)(x))

# define __le32_to_cpu(x) ((__force __u32)(__le32)(x))

# define __le64_to_cpu(x) ((__force __u64)(__le64)(x))

# define __cpu_to_le16(x) ((__force __le16)(__u16)(x))

# define __cpu_to_le32(x) ((__force __le32)(__u32)(x))

# define __cpu_to_le64(x) ((__force __le64)(__u64)(x))



# define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))

# define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))

# define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))

# define __cpu_to_be16(x) ((__force __be16)__swab16(x))

# define __cpu_to_be32(x) ((__force __be32)__swab32(x))

# define __cpu_to_be64(x) ((__force __be64)__swab64(x))

#endif



#ifdef __BIG_ENDIAN

# define __be16_to_cpu(x) ((__force __u16)(__be16)(x))

# define __be32_to_cpu(x) ((__force __u32)(__be32)(x))

# define __be64_to_cpu(x) ((__force __u64)(__be64)(x))

# define __cpu_to_be16(x) ((__force __be16)(__u16)(x))

# define __cpu_to_be32(x) ((__force __be32)(__u32)(x))

# define __cpu_to_be64(x) ((__force __be64)(__u64)(x))



# define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))

# define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))

# define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x))

# define __cpu_to_le16(x) ((__force __le16)__swab16(x))

# define __cpu_to_le32(x) ((__force __le32)__swab32(x))

# define __cpu_to_le64(x) ((__force __le64)__swab64(x))

#endif



/*

 * These helpers could be phased out over time as the base version

 * handles constant folding.

 */

#define __constant_htonl(x) __cpu_to_be32(x)

#define __constant_ntohl(x) __be32_to_cpu(x)

#define __constant_htons(x) __cpu_to_be16(x)

#define __constant_ntohs(x) __be16_to_cpu(x)



#define __constant_le16_to_cpu(x) __le16_to_cpu(x)

#define __constant_le32_to_cpu(x) __le32_to_cpu(x)

#define __constant_le64_to_cpu(x) __le64_to_cpu(x)

#define __constant_be16_to_cpu(x) __be16_to_cpu(x)

#define __constant_be32_to_cpu(x) __be32_to_cpu(x)

#define __constant_be64_to_cpu(x) __be64_to_cpu(x)



#define __constant_cpu_to_le16(x) __cpu_to_le16(x)

#define __constant_cpu_to_le32(x) __cpu_to_le32(x)

#define __constant_cpu_to_le64(x) __cpu_to_le64(x)

#define __constant_cpu_to_be16(x) __cpu_to_be16(x)

#define __constant_cpu_to_be32(x) __cpu_to_be32(x)

#define __constant_cpu_to_be64(x) __cpu_to_be64(x)



static inline void __le16_to_cpus(__u16 *p)

{

#ifdef __BIG_ENDIAN

	__swab16s(p);

#endif

}



static inline void __cpu_to_le16s(__u16 *p)

{

#ifdef __BIG_ENDIAN

	__swab16s(p);

#endif

}



static inline void __le32_to_cpus(__u32 *p)

{

#ifdef __BIG_ENDIAN

	__swab32s(p);

#endif

}



static inline void __cpu_to_le32s(__u32 *p)

{

#ifdef __BIG_ENDIAN

	__swab32s(p);

#endif

}



static inline void __le64_to_cpus(__u64 *p)

{

#ifdef __BIG_ENDIAN

	__swab64s(p);

#endif

}



static inline void __cpu_to_le64s(__u64 *p)

{

#ifdef __BIG_ENDIAN

	__swab64s(p);

#endif

}



static inline void __be16_to_cpus(__u16 *p)

{

#ifdef __LITTLE_ENDIAN

	__swab16s(p);

#endif

}



static inline void __cpu_to_be16s(__u16 *p)

{

#ifdef __LITTLE_ENDIAN

	__swab16s(p);

#endif

}



static inline void __be32_to_cpus(__u32 *p)

{

#ifdef __LITTLE_ENDIAN

	__swab32s(p);

#endif

}



static inline void __cpu_to_be32s(__u32 *p)

{

#ifdef __LITTLE_ENDIAN

	__swab32s(p);

#endif

}



static inline void __be64_to_cpus(__u64 *p)

{

#ifdef __LITTLE_ENDIAN

	__swab64s(p);

#endif

}



static inline void __cpu_to_be64s(__u64 *p)

{

#ifdef __LITTLE_ENDIAN

	__swab64s(p);

#endif

}



static inline __u16 __le16_to_cpup(const __le16 *p)

{

#ifdef __LITTLE_ENDIAN

	return (__force __u16)*p;

#else

	return __swab16p((__force __u16 *)p);

#endif

}



static inline __u32 __le32_to_cpup(const __le32 *p)

{

#ifdef __LITTLE_ENDIAN

	return (__force __u32)*p;

#else

	return __swab32p((__force __u32 *)p);

#endif

}



static inline __u64 __le64_to_cpup(const __le64 *p)

{

#ifdef __LITTLE_ENDIAN

	return (__force __u64)*p;

#else

	return __swab64p((__force __u64 *)p);

#endif

}



static inline __le16 __cpu_to_le16p(const __u16 *p)

{

#ifdef __LITTLE_ENDIAN

	return (__force __le16)*p;

#else

	return (__force __le16)__swab16p(p);

#endif

}



static inline __le32 __cpu_to_le32p(const __u32 *p)

{

#ifdef __LITTLE_ENDIAN

	return (__force __le32)*p;

#else

	return (__force __le32)__swab32p(p);

#endif

}



static inline __le64 __cpu_to_le64p(const __u64 *p)

{

#ifdef __LITTLE_ENDIAN

	return (__force __le64)*p;

#else

	return (__force __le64)__swab64p(p);

#endif

}



static inline __u16 __be16_to_cpup(const __be16 *p)

{

#ifdef __BIG_ENDIAN

	return (__force __u16)*p;

#else

	return __swab16p((__force __u16 *)p);

#endif

}



static inline __u32 __be32_to_cpup(const __be32 *p)

{

#ifdef __BIG_ENDIAN

	return (__force __u32)*p;

#else

	return __swab32p((__force __u32 *)p);

#endif

}



static inline __u64 __be64_to_cpup(const __be64 *p)

{

#ifdef __BIG_ENDIAN

	return (__force __u64)*p;

#else

	return __swab64p((__force __u64 *)p);

#endif

}



static inline __be16 __cpu_to_be16p(const __u16 *p)

{

#ifdef __BIG_ENDIAN

	return (__force __be16)*p;

#else

	return (__force __be16)__swab16p(p);

#endif

}



static inline __be32 __cpu_to_be32p(const __u32 *p)

{

#ifdef __BIG_ENDIAN

	return (__force __be32)*p;

#else

	return (__force __be32)__swab32p(p);

#endif

}



static inline __be64 __cpu_to_be64p(const __u64 *p)

{

#ifdef __BIG_ENDIAN

	return (__force __be64)*p;

#else

	return (__force __be64)__swab64p(p);

#endif

}



#ifdef __KERNEL__



# define le16_to_cpu __le16_to_cpu

# define le32_to_cpu __le32_to_cpu

# define le64_to_cpu __le64_to_cpu

# define be16_to_cpu __be16_to_cpu

# define be32_to_cpu __be32_to_cpu

# define be64_to_cpu __be64_to_cpu

# define cpu_to_le16 __cpu_to_le16

# define cpu_to_le32 __cpu_to_le32

# define cpu_to_le64 __cpu_to_le64

# define cpu_to_be16 __cpu_to_be16

# define cpu_to_be32 __cpu_to_be32

# define cpu_to_be64 __cpu_to_be64



# define le16_to_cpup __le16_to_cpup

# define le32_to_cpup __le32_to_cpup

# define le64_to_cpup __le64_to_cpup

# define be16_to_cpup __be16_to_cpup

# define be32_to_cpup __be32_to_cpup

# define be64_to_cpup __be64_to_cpup

# define cpu_to_le16p __cpu_to_le16p

# define cpu_to_le32p __cpu_to_le32p

# define cpu_to_le64p __cpu_to_le64p

# define cpu_to_be16p __cpu_to_be16p

# define cpu_to_be32p __cpu_to_be32p

# define cpu_to_be64p __cpu_to_be64p



# define le16_to_cpus __le16_to_cpus

# define le32_to_cpus __le32_to_cpus

# define le64_to_cpus __le64_to_cpus

# define be16_to_cpus __be16_to_cpus

# define be32_to_cpus __be32_to_cpus

# define be64_to_cpus __be64_to_cpus

# define cpu_to_le16s __cpu_to_le16s

# define cpu_to_le32s __cpu_to_le32s

# define cpu_to_le64s __cpu_to_le64s

# define cpu_to_be16s __cpu_to_be16s

# define cpu_to_be32s __cpu_to_be32s

# define cpu_to_be64s __cpu_to_be64s



/*

 * They have to be macros in order to do the constant folding

 * correctly - if the argument passed into a inline function

 * it is no longer constant according to gcc..

 */

# undef ntohl

# undef ntohs

# undef htonl

# undef htons



# define ___htonl(x) __cpu_to_be32(x)

# define ___htons(x) __cpu_to_be16(x)

# define ___ntohl(x) __be32_to_cpu(x)

# define ___ntohs(x) __be16_to_cpu(x)



# define htonl(x) ___htonl(x)

# define ntohl(x) ___ntohl(x)

# define htons(x) ___htons(x)

# define ntohs(x) ___ntohs(x)



static inline void le16_add_cpu(__le16 *var, u16 val)

{

	*var = cpu_to_le16(le16_to_cpup(var) + val);

}



static inline void le32_add_cpu(__le32 *var, u32 val)

{

	*var = cpu_to_le32(le32_to_cpup(var) + val);

}



static inline void le64_add_cpu(__le64 *var, u64 val)

{

	*var = cpu_to_le64(le64_to_cpup(var) + val);

}



static inline void be16_add_cpu(__be16 *var, u16 val)

{

	*var = cpu_to_be16(be16_to_cpup(var) + val);

}



static inline void be32_add_cpu(__be32 *var, u32 val)

{

	*var = cpu_to_be32(be32_to_cpup(var) + val);

}



static inline void be64_add_cpu(__be64 *var, u64 val)

{

	*var = cpu_to_be64(be64_to_cpup(var) + val);

}



#endif /* __KERNEL__ */

#endif /* _LINUX_BYTEORDER_H */