The patch titled
arm: introduce little-endian bitops
has been removed from the -mm tree. Its filename was
arm-introduce-little-endian-bitops.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: arm: introduce little-endian bitops
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Introduce little-endian bit operations by renaming native ext2 bit
operations. The ext2 and minix bit operations are kept as wrapper macros
using little-endian bit operations to maintain bisectability until the
conversions are finished.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/include/asm/bitops.h | 91 ++++++++++++++++++++++----------
1 file changed, 65 insertions(+), 26 deletions(-)
diff -puN arch/arm/include/asm/bitops.h~arm-introduce-little-endian-bitops arch/arm/include/asm/bitops.h
--- a/arch/arm/include/asm/bitops.h~arm-introduce-little-endian-bitops
+++ a/arch/arm/include/asm/bitops.h
@@ -287,41 +287,80 @@ static inline int fls(int x)
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>
+static inline void __set_bit_le(int nr, void *addr)
+{
+ __set_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline void __clear_bit_le(int nr, void *addr)
+{
+ __clear_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline int __test_and_set_bit_le(int nr, void *addr)
+{
+ return __test_and_set_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline int test_and_set_bit_le(int nr, void *addr)
+{
+ return test_and_set_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline int __test_and_clear_bit_le(int nr, void *addr)
+{
+ return __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline int test_and_clear_bit_le(int nr, void *addr)
+{
+ return test_and_clear_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline int test_bit_le(int nr, const void *addr)
+{
+ return test_bit(WORD_BITOFF_TO_LE(nr), addr);
+}
+
+static inline int find_first_zero_bit_le(const void *p, unsigned size)
+{
+ return _find_first_zero_bit_le(p, size);
+}
+
+static inline int find_next_zero_bit_le(const void *p, int size, int offset)
+{
+ return _find_next_zero_bit_le(p, size, offset);
+}
+
+static inline int find_next_bit_le(const void *p, int size, int offset)
+{
+ return _find_next_bit_le(p, size, offset);
+}
+
/*
* Ext2 is defined to use little-endian byte ordering.
* These do not need to be atomic.
*/
-#define ext2_set_bit(nr,p) \
- __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_set_bit_atomic(lock,nr,p) \
- test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_clear_bit(nr,p) \
- __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_clear_bit_atomic(lock,nr,p) \
- test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
-#define ext2_find_next_zero_bit(p,sz,off) \
- _find_next_zero_bit_le(p,sz,off)
-#define ext2_find_next_bit(p, sz, off) \
- _find_next_bit_le(p, sz, off)
+#define ext2_set_bit __test_and_set_bit_le
+#define ext2_set_bit_atomic(lock, nr, p) \
+ test_and_set_bit_le(nr, p)
+#define ext2_clear_bit __test_and_clear_bit_le
+#define ext2_clear_bit_atomic(lock, nr, p) \
+ test_and_clear_bit_le(nr, p)
+#define ext2_test_bit test_bit_le
+#define ext2_find_first_zero_bit find_first_zero_bit_le
+#define ext2_find_next_zero_bit find_next_zero_bit_le
+#define ext2_find_next_bit find_next_bit_le
/*
* Minix is defined to use little-endian byte ordering.
* These do not need to be atomic.
*/
-#define minix_set_bit(nr,p) \
- __set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_test_and_set_bit(nr,p) \
- __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_test_and_clear_bit(nr,p) \
- __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
+#define minix_set_bit __set_bit_le
+#define minix_test_bit test_bit_le
+#define minix_test_and_set_bit __test_and_set_bit_le
+#define minix_test_and_clear_bit __test_and_clear_bit_le
+#define minix_find_first_zero_bit find_first_zero_bit_le
#endif /* __KERNEL__ */
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
origin.patch
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