/* SPDX-License-Identifier: GPL-2.0 */ #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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__ffs.h | File | 777 B | 0644 |
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__fls.h | File | 920 B | 0644 |
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arch_hweight.h | File | 555 B | 0644 |
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atomic.h | File | 5.5 KB | 0644 |
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builtin-__ffs.h | File | 379 B | 0644 |
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builtin-__fls.h | File | 436 B | 0644 |
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builtin-ffs.h | File | 410 B | 0644 |
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builtin-fls.h | File | 403 B | 0644 |
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const_hweight.h | File | 1.67 KB | 0644 |
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ext2-atomic-setbit.h | File | 403 B | 0644 |
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ext2-atomic.h | File | 600 B | 0644 |
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ffs.h | File | 654 B | 0644 |
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ffz.h | File | 325 B | 0644 |
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find.h | File | 1.94 KB | 0644 |
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fls.h | File | 674 B | 0644 |
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fls64.h | File | 860 B | 0644 |
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hweight.h | File | 254 B | 0644 |
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le.h | File | 2.19 KB | 0644 |
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lock.h | File | 1.23 KB | 0644 |
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non-atomic.h | File | 3 KB | 0644 |
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sched.h | File | 760 B | 0644 |
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