Release 4.12 include/asm-generic/bitops/find.h
#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
* @offset: The bitnumber to start searching at
* @size: The bitmap size in bits
*
* Returns the bit number for the next set bit
* If no bits are set, returns @size.
*/
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
* @offset: The bitnumber to start searching at
* @size: The bitmap size in bits
*
* Returns the bit number of the next zero bit
* If no bits are zero, returns @size.
*/
extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
long size, unsigned long offset);
#endif
#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
/**
* find_first_bit - find the first set bit in a memory region
* @addr: The address to start the search at
* @size: The maximum number of bits to search
*
* Returns the bit number of the first set bit.
* If no bits are set, returns @size.
*/
extern unsigned long find_first_bit(const unsigned long *addr,
unsigned long size);
/**
* find_first_zero_bit - find the first cleared bit in a memory region
* @addr: The address to start the search at
* @size: The maximum number of bits to search
*
* Returns the bit number of the first cleared bit.
* If no bits are zero, returns @size.
*/
extern unsigned long find_first_zero_bit(const unsigned long *addr,
unsigned long size);
#else /* CONFIG_GENERIC_FIND_FIRST_BIT */
#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 /* CONFIG_GENERIC_FIND_FIRST_BIT */
#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */
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