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- #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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