1#ifndef _ASM_GENERIC_BITOPS_FIND_H_
 2#define _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 */
11extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
12		size, unsigned long offset);
13#endif
14
15#ifndef find_next_zero_bit
16/**
17 * find_next_zero_bit - find the next cleared bit in a memory region
18 * @addr: The address to base the search on
19 * @offset: The bitnumber to start searching at
20 * @size: The bitmap size in bits
21 */
22extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
23		long size, unsigned long offset);
24#endif
25
26#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
27
28/**
29 * find_first_bit - find the first set bit in a memory region
30 * @addr: The address to start the search at
31 * @size: The maximum size to search
32 *
33 * Returns the bit number of the first set bit.
34 */
35extern unsigned long find_first_bit(const unsigned long *addr,
36				    unsigned long size);
37
38/**
39 * find_first_zero_bit - find the first cleared bit in a memory region
40 * @addr: The address to start the search at
41 * @size: The maximum size to search
42 *
43 * Returns the bit number of the first cleared bit.
44 */
45extern unsigned long find_first_zero_bit(const unsigned long *addr,
46					 unsigned long size);
47#else /* CONFIG_GENERIC_FIND_FIRST_BIT */
48
49#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
50#define find_first_zero_bit(addr, size) find_next_zero_bit((addr), (size), 0)
51
52#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
53
54#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */