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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2011-05-27 01:26:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-27 02:12:38 +0200 |
| commit | 19de85ef574c3a2182e3ccad9581805052f14946 (patch) | |
| tree | 98212bc122ac55807e562fd1ae6d0c5f0f2564d0 /include/asm-generic/bitops/find.h | |
| parent | arch: add #define for each of optimized find bitops (diff) | |
| download | linux-19de85ef574c3a2182e3ccad9581805052f14946.tar.xz linux-19de85ef574c3a2182e3ccad9581805052f14946.zip | |
bitops: add #ifndef for each of find bitops
The style that we normally use in asm-generic is to test the macro itself
for existence, so in asm-generic, do:
#ifndef find_next_zero_bit_le
extern unsigned long find_next_zero_bit_le(const void *addr,
unsigned long size, unsigned long offset);
#endif
and in the architectures, write
static inline unsigned long find_next_zero_bit_le(const void *addr,
unsigned long size, unsigned long offset)
#define find_next_zero_bit_le find_next_zero_bit_le
This adds the #ifndef for each of the find bitops in the generic header
and source files.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic/bitops/find.h')
| -rw-r--r-- | include/asm-generic/bitops/find.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h index 110fa700f853..71c778033f57 100644 --- a/include/asm-generic/bitops/find.h +++ b/include/asm-generic/bitops/find.h @@ -1,6 +1,7 @@ #ifndef _ASM_GENERIC_BITOPS_FIND_H_ #define _ASM_GENERIC_BITOPS_FIND_H_ +#ifndef find_next_bit /** * find_next_bit - find the next set bit in a memory region * @addr: The address to base the search on @@ -9,7 +10,9 @@ */ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long size, unsigned long offset); +#endif +#ifndef find_next_zero_bit /** * find_next_zero_bit - find the next cleared bit in a memory region * @addr: The address to base the search on @@ -18,6 +21,7 @@ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long */ extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, unsigned long offset); +#endif #ifdef CONFIG_GENERIC_FIND_FIRST_BIT |