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Commit 13da9e20 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Revert "endian: #define __BYTE_ORDER" 



This reverts commit b3b77c8c, which was
also totally broken (see commit 0d2daf5c that reverted the crc32
version of it).  As reported by Stephen Rothwell, it causes problems on
big-endian machines:

> In file included from fs/jfs/jfs_types.h:33,
>                  from fs/jfs/jfs_incore.h:26,
>                  from fs/jfs/file.c:22:
> fs/jfs/endian24.h:36:101: warning: "__LITTLE_ENDIAN" is not defined

The kernel has never had that crazy "__BYTE_ORDER == __LITTLE_ENDIAN"
model.  It's not how we do things, and it isn't how we _should_ do
things.  So don't go there.

Requested-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4e89e8f6

arch/alpha/math-emu/sfp-util.h

+5 −0
Original line number Diff line number Diff line
@@ -28,3 +28,8 @@ extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long, 
#define UDIV_NEEDS_NORMALIZATION 1  



#define abort()			goto bad_insn



#ifndef __LITTLE_ENDIAN

#define __LITTLE_ENDIAN -1

#endif

#define __BYTE_ORDER __LITTLE_ENDIAN

arch/powerpc/include/asm/sfp-machine.h

+6 −0
Original line number Diff line number Diff line
@@ -353,6 +353,12 @@ 
#define abort()								\

	return 0



#ifdef __BIG_ENDIAN

#define __BYTE_ORDER __BIG_ENDIAN

#else

#define __BYTE_ORDER __LITTLE_ENDIAN

#endif



/* Exception flags. */

#define EFLAG_INVALID		(1 << (31 - 2))

#define EFLAG_OVERFLOW		(1 << (31 - 3))

arch/s390/include/asm/sfp-util.h

+2 −0
Original line number Diff line number Diff line
@@ -73,3 +73,5 @@ extern unsigned long __udiv_qrnnd (unsigned int *, unsigned int, 
#define UDIV_NEEDS_NORMALIZATION 0



#define abort() return 0



#define __BYTE_ORDER __BIG_ENDIAN

arch/sh/math-emu/sfp-util.h

+4 −0
Original line number Diff line number Diff line
@@ -66,3 +66,7 @@ 
  } while (0)



#define abort()	return 0



#define __BYTE_ORDER __LITTLE_ENDIAN

arch/sparc/math-emu/sfp-util_32.h

+6 −0
Original line number Diff line number Diff line
@@ -107,3 +107,9 @@ 


#define abort()								\

	return 0



#ifdef __BIG_ENDIAN

#define __BYTE_ORDER __BIG_ENDIAN

#else

#define __BYTE_ORDER __LITTLE_ENDIAN

#endif