D35937.id108799.diff
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	Index: sys/compat/linuxkpi/common/include/linux/math64.h
	===================================================================
	--- sys/compat/linuxkpi/common/include/linux/math64.h
	+++ sys/compat/linuxkpi/common/include/linux/math64.h
	@@ -100,4 +100,23 @@
	#define DIV64_U64_ROUND_UP(...) \
	div64_u64_round_up(__VA_ARGS__)

	+static inline uint64_t
	+mul_u64_u32_div(uint64_t x, uint32_t y, uint32_t div)
	+{
	+ const uint64_t rem = x % div;
	+
	+ return (x / div) * y + (rem * y) / div;
	+}
	+
	+static inline uint64_t
	+mul_u64_u32_shr(uint64_t x, uint32_t y, unsigned int shift)
	+{
	+ uint32_t hi, lo;
	+ hi = x >> 32;
	+ lo = x & 0xffffffff;
	+
	+ return (mul_u32_u32(lo, y) >> shift) +
	+ (mul_u32_u32(hi, y) << (32 - shift));
	+}
	+
	#endif /* _LINUXKPI_LINUX_MATH64_H */