aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-generic/bitops
diff options
context:
space:
mode:
authorAkinobu Mita <mita@miraclelinux.com>2006-03-26 04:39:11 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-26 11:57:11 -0500
commitc7f612cdf091def01454e7e132c7d7a3f419fbc4 (patch)
tree01b3fbc080a0a513dab60622aad0409d197b570a /include/asm-generic/bitops
parent2dfc383ad587bbead84739a9ff9273df3eda983d (diff)
[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')
-rw-r--r--include/asm-generic/bitops/find.h13
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 000000000000..72a51e5a12ef
--- /dev/null
+++ b/include/asm-generic/bitops/find.h
@@ -0,0 +1,13 @@
1#ifndef _ASM_GENERIC_BITOPS_FIND_H_
2#define _ASM_GENERIC_BITOPS_FIND_H_
3
4extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
5 size, unsigned long offset);
6
7extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
8 long size, unsigned long offset);
9
10#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
11#define find_first_zero_bit(addr, size) find_next_zero_bit((addr), (size), 0)
12
13#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */