1#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ 2#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ 3 4#ifndef find_next_bit 5/** 6 * find_next_bit - find the next set bit in a memory region 7 * @addr: The address to base the search on 8 * @offset: The bitnumber to start searching at 9 * @size: The bitmap size in bits 10 * 11 * Returns the bit number for the next set bit 12 * If no bits are set, returns @size. 13 */ 14extern unsigned long find_next_bit(const unsigned long *addr, unsigned long 15 size, unsigned long offset); 16#endif 17 18#ifndef find_next_zero_bit 19 20/** 21 * find_next_zero_bit - find the next cleared bit in a memory region 22 * @addr: The address to base the search on 23 * @offset: The bitnumber to start searching at 24 * @size: The bitmap size in bits 25 * 26 * Returns the bit number of the next zero bit 27 * If no bits are zero, returns @size. 28 */ 29unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, 30 unsigned long offset); 31#endif 32 33#ifndef find_first_bit 34 35/** 36 * find_first_bit - find the first set bit in a memory region 37 * @addr: The address to start the search at 38 * @size: The maximum number of bits to search 39 * 40 * Returns the bit number of the first set bit. 41 * If no bits are set, returns @size. 42 */ 43extern unsigned long find_first_bit(const unsigned long *addr, 44 unsigned long size); 45 46#endif /* find_first_bit */ 47 48#ifndef find_first_zero_bit 49 50/** 51 * find_first_zero_bit - find the first cleared bit in a memory region 52 * @addr: The address to start the search at 53 * @size: The maximum number of bits to search 54 * 55 * Returns the bit number of the first cleared bit. 56 * If no bits are zero, returns @size. 57 */ 58unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size); 59#endif 60 61#endif /*_TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ */ 62