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#define _LINUX_BITOPS_H
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#define _LINUX_BITOPS_H
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#include
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#include
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#ifdef	__KERNEL__
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#ifdef	__KERNEL__
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#define BIT(nr)         (1UL << (nr))
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#define BIT(nr)         (1UL << (nr))
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#define BIT_ULL(nr)		(1ULL << (nr))
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#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
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#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
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#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
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#define BIT_ULL_MASK(nr)	(1ULL << ((nr) % BITS_PER_LONG_LONG))
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#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
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#define BIT_ULL_WORD(nr)	((nr) / BITS_PER_LONG_LONG)
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#define BITS_PER_BYTE		8
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#define BITS_PER_BYTE		8
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#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
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#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
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#endif
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/*
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 * Create a contiguous bitmask starting at bit position @l and ending at
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 * position @h. For example
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 * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
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 */
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#define GENMASK(h, l)		(((U32_C(1) << ((h) - (l) + 1)) - 1) << (l))
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#endif
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#define GENMASK_ULL(h, l)	(((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))
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extern unsigned int __sw_hweight8(unsigned int w);
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extern unsigned int __sw_hweight8(unsigned int w);
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extern unsigned int __sw_hweight16(unsigned int w);
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extern unsigned int __sw_hweight16(unsigned int w);
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	return __ffs((unsigned long)word);
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	return __ffs((unsigned long)word);
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}
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}
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#ifdef __KERNEL__
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#ifndef set_mask_bits
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#define set_mask_bits(ptr, _mask, _bits)	\
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({								\
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	const typeof(*ptr) mask = (_mask), bits = (_bits);	\
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	typeof(*ptr) old, new;					\
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								\
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	do {							\
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		old = ACCESS_ONCE(*ptr);			\
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		new = (old & ~mask) | bits;			\
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	} while (cmpxchg(ptr, old, new) != old);		\
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								\
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	new;							\
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})
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#ifdef __KERNEL__
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#endif
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#ifndef find_last_bit
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#ifndef find_last_bit
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/**
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/**
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 * find_last_bit - find the last set bit in a memory region
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 * find_last_bit - find the last set bit in a memory region