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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>
14 lines
481 B
C
14 lines
481 B
C
#ifndef _ASM_GENERIC_BITOPS_FIND_H_
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#define _ASM_GENERIC_BITOPS_FIND_H_
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extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
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size, unsigned long offset);
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extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
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long size, unsigned long offset);
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#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
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#define find_first_zero_bit(addr, size) find_next_zero_bit((addr), (size), 0)
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#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */
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