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author | Akinobu Mita <mita@miraclelinux.com> | 2006-03-26 01:39:11 -0800 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 08:57:11 -0800 |
commit | c7f612cdf091def01454e7e132c7d7a3f419fbc4 (patch) | |
tree | 01b3fbc080a0a513dab60622aad0409d197b570a /include/asm-generic/bitops/find.h | |
parent | 2dfc383ad587bbead84739a9ff9273df3eda983d (diff) | |
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[PATCH] bitops: generic find_{next,first}{,_zero}_bit()
This patch introduces the C-language equivalents of the functions below:
unsigned logn find_next_bit(const unsigned long *addr, unsigned long size,
unsigned long offset);
unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size,
unsigned long offset);
unsigned long find_first_zero_bit(const unsigned long *addr,
unsigned long size);
unsigned long find_first_bit(const unsigned long *addr, unsigned long size);
In include/asm-generic/bitops/find.h
This code largely copied from: arch/powerpc/lib/bitops.c
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-generic/bitops/find.h')
-rw-r--r-- | include/asm-generic/bitops/find.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h new file mode 100644 index 0000000..72a51e5 --- /dev/null +++ b/include/asm-generic/bitops/find.h @@ -0,0 +1,13 @@ +#ifndef _ASM_GENERIC_BITOPS_FIND_H_ +#define _ASM_GENERIC_BITOPS_FIND_H_ + +extern unsigned long find_next_bit(const unsigned long *addr, unsigned long + size, unsigned long offset); + +extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned + long size, unsigned long offset); + +#define find_first_bit(addr, size) find_next_bit((addr), (size), 0) +#define find_first_zero_bit(addr, size) find_next_zero_bit((addr), (size), 0) + +#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */ |