The patch titled
endian: #define __BYTE_ORDER
has been added to the -mm tree. Its filename is
endian-define-__byte_order.patch
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out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: endian: #define __BYTE_ORDER
From: Joakim Tjernlund <Joakim.Tjernlund@xxxxxxxxxxxx>
Linux does not define __BYTE_ORDER in its endian header files which makes
some header files bend backwards to get at the current endian. Lets
#define __BYTE_ORDER in big_endian.h/litte_endian.h to make it easier for
header files that are used in user space too.
In userspace the convention is that
1. _both_ __LITTLE_ENDIAN and __BIG_ENDIAN are defined,
2. you have to test for e.g. __BYTE_ORDER == __BIG_ENDIAN.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@xxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/math-emu/sfp-util.h | 5 -----
arch/powerpc/include/asm/sfp-machine.h | 6 ------
arch/s390/include/asm/sfp-util.h | 2 --
arch/sh/math-emu/sfp-util.h | 4 ----
arch/sparc/math-emu/sfp-util_32.h | 6 ------
arch/sparc/math-emu/sfp-util_64.h | 6 ------
arch/x86/boot/compressed/relocs.c | 4 ++--
include/linux/byteorder/big_endian.h | 3 +++
include/linux/byteorder/little_endian.h | 3 +++
9 files changed, 8 insertions(+), 31 deletions(-)
diff -puN arch/alpha/math-emu/sfp-util.h~endian-define-__byte_order arch/alpha/math-emu/sfp-util.h
--- a/arch/alpha/math-emu/sfp-util.h~endian-define-__byte_order
+++ a/arch/alpha/math-emu/sfp-util.h
@@ -28,8 +28,3 @@ extern unsigned long __udiv_qrnnd (unsig
#define UDIV_NEEDS_NORMALIZATION 1
#define abort() goto bad_insn
-
-#ifndef __LITTLE_ENDIAN
-#define __LITTLE_ENDIAN -1
-#endif
-#define __BYTE_ORDER __LITTLE_ENDIAN
diff -puN arch/powerpc/include/asm/sfp-machine.h~endian-define-__byte_order arch/powerpc/include/asm/sfp-machine.h
--- a/arch/powerpc/include/asm/sfp-machine.h~endian-define-__byte_order
+++ a/arch/powerpc/include/asm/sfp-machine.h
@@ -353,12 +353,6 @@
#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))
diff -puN arch/s390/include/asm/sfp-util.h~endian-define-__byte_order arch/s390/include/asm/sfp-util.h
--- a/arch/s390/include/asm/sfp-util.h~endian-define-__byte_order
+++ a/arch/s390/include/asm/sfp-util.h
@@ -73,5 +73,3 @@ extern unsigned long __udiv_qrnnd (unsig
#define UDIV_NEEDS_NORMALIZATION 0
#define abort() return 0
-
-#define __BYTE_ORDER __BIG_ENDIAN
diff -puN arch/sh/math-emu/sfp-util.h~endian-define-__byte_order arch/sh/math-emu/sfp-util.h
--- a/arch/sh/math-emu/sfp-util.h~endian-define-__byte_order
+++ a/arch/sh/math-emu/sfp-util.h
@@ -66,7 +66,3 @@
} while (0)
#define abort() return 0
-
-#define __BYTE_ORDER __LITTLE_ENDIAN
-
-
diff -puN arch/sparc/math-emu/sfp-util_32.h~endian-define-__byte_order arch/sparc/math-emu/sfp-util_32.h
--- a/arch/sparc/math-emu/sfp-util_32.h~endian-define-__byte_order
+++ a/arch/sparc/math-emu/sfp-util_32.h
@@ -107,9 +107,3 @@
#define abort() \
return 0
-
-#ifdef __BIG_ENDIAN
-#define __BYTE_ORDER __BIG_ENDIAN
-#else
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#endif
diff -puN arch/sparc/math-emu/sfp-util_64.h~endian-define-__byte_order arch/sparc/math-emu/sfp-util_64.h
--- a/arch/sparc/math-emu/sfp-util_64.h~endian-define-__byte_order
+++ a/arch/sparc/math-emu/sfp-util_64.h
@@ -112,9 +112,3 @@
#define abort() \
return 0
-
-#ifdef __BIG_ENDIAN
-#define __BYTE_ORDER __BIG_ENDIAN
-#else
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#endif
diff -puN arch/x86/boot/compressed/relocs.c~endian-define-__byte_order arch/x86/boot/compressed/relocs.c
--- a/arch/x86/boot/compressed/relocs.c~endian-define-__byte_order
+++ a/arch/x86/boot/compressed/relocs.c
@@ -195,11 +195,11 @@ static const char *sym_name(const char *
-#if BYTE_ORDER == LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
#define le16_to_cpu(val) (val)
#define le32_to_cpu(val) (val)
#endif
-#if BYTE_ORDER == BIG_ENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
#define le16_to_cpu(val) bswap_16(val)
#define le32_to_cpu(val) bswap_32(val)
#endif
diff -puN include/linux/byteorder/big_endian.h~endian-define-__byte_order include/linux/byteorder/big_endian.h
--- a/include/linux/byteorder/big_endian.h~endian-define-__byte_order
+++ a/include/linux/byteorder/big_endian.h
@@ -7,6 +7,9 @@
#ifndef __BIG_ENDIAN_BITFIELD
#define __BIG_ENDIAN_BITFIELD
#endif
+#ifndef __BYTE_ORDER
+#define __BYTE_ORDER __BIG_ENDIAN
+#endif
#include <linux/types.h>
#include <linux/swab.h>
diff -puN include/linux/byteorder/little_endian.h~endian-define-__byte_order include/linux/byteorder/little_endian.h
--- a/include/linux/byteorder/little_endian.h~endian-define-__byte_order
+++ a/include/linux/byteorder/little_endian.h
@@ -7,6 +7,9 @@
#ifndef __LITTLE_ENDIAN_BITFIELD
#define __LITTLE_ENDIAN_BITFIELD
#endif
+#ifndef __BYTE_ORDER
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
#include <linux/types.h>
#include <linux/swab.h>
_
Patches currently in -mm which might be from Joakim.Tjernlund@xxxxxxxxxxxx are
endian-define-__byte_order.patch
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