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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-26 08:30:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-26 08:30:15 -0700
commit13da9e200fe4740b02cd51e07ab454627e228920 (patch)
treee65f37a59c2a0e1695d5094a8f5509839e1d30cc /arch
parent4e89e8f61bcdff82a7b63b80ed83a6725028d61b (diff)
downloadlinux-13da9e200fe4740b02cd51e07ab454627e228920.tar.gz
Revert "endian: #define __BYTE_ORDER"
This reverts commit b3b77c8caef1750ebeea1054e39e358550ea9f55, which was also totally broken (see commit 0d2daf5cc858 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: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/math-emu/sfp-util.h5
-rw-r--r--arch/powerpc/include/asm/sfp-machine.h6
-rw-r--r--arch/s390/include/asm/sfp-util.h2
-rw-r--r--arch/sh/math-emu/sfp-util.h4
-rw-r--r--arch/sparc/math-emu/sfp-util_32.h6
-rw-r--r--arch/sparc/math-emu/sfp-util_64.h6
-rw-r--r--arch/x86/boot/compressed/relocs.c4
7 files changed, 31 insertions, 2 deletions
diff --git a/arch/alpha/math-emu/sfp-util.h b/arch/alpha/math-emu/sfp-util.h
index d4c6ae7fee47..f53707f77455 100644
--- a/arch/alpha/math-emu/sfp-util.h
+++ b/arch/alpha/math-emu/sfp-util.h
@@ -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
diff --git a/arch/powerpc/include/asm/sfp-machine.h b/arch/powerpc/include/asm/sfp-machine.h
index 8b8fab91ad1e..3a7a67a0d006 100644
--- a/arch/powerpc/include/asm/sfp-machine.h
+++ b/arch/powerpc/include/asm/sfp-machine.h
@@ -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))
diff --git a/arch/s390/include/asm/sfp-util.h b/arch/s390/include/asm/sfp-util.h
index 7d43fee17e32..0addc6466d95 100644
--- a/arch/s390/include/asm/sfp-util.h
+++ b/arch/s390/include/asm/sfp-util.h
@@ -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
diff --git a/arch/sh/math-emu/sfp-util.h b/arch/sh/math-emu/sfp-util.h
index e8526021892f..8ae1bd310ad0 100644
--- a/arch/sh/math-emu/sfp-util.h
+++ b/arch/sh/math-emu/sfp-util.h
@@ -66,3 +66,7 @@
} while (0)
#define abort() return 0
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+
diff --git a/arch/sparc/math-emu/sfp-util_32.h b/arch/sparc/math-emu/sfp-util_32.h
index 0ea35afbb914..d1b2aff3c259 100644
--- a/arch/sparc/math-emu/sfp-util_32.h
+++ b/arch/sparc/math-emu/sfp-util_32.h
@@ -107,3 +107,9 @@
#define abort() \
return 0
+
+#ifdef __BIG_ENDIAN
+#define __BYTE_ORDER __BIG_ENDIAN
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
diff --git a/arch/sparc/math-emu/sfp-util_64.h b/arch/sparc/math-emu/sfp-util_64.h
index d17c9bc72181..425d3cf01af4 100644
--- a/arch/sparc/math-emu/sfp-util_64.h
+++ b/arch/sparc/math-emu/sfp-util_64.h
@@ -112,3 +112,9 @@
#define abort() \
return 0
+
+#ifdef __BIG_ENDIAN
+#define __BYTE_ORDER __BIG_ENDIAN
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index 7b1aaa20c7b5..89bbf4e4d05d 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -195,11 +195,11 @@ static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym)
-#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