div64-generic.c 260 字节
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/*
 * Generic __div64_32 wrapper for __xdiv64_32.
 */

#include <linux/types.h>

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extern uint64_t __xdiv64_32(u64 n, u32 d);
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uint32_t __div64_32(u64 *xp, u32 y)
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{
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	uint32_t rem;
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	uint64_t q = __xdiv64_32(*xp, y);
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	rem = *xp - q * y;
	*xp = q;

	return rem;
}