mul_u64_u64_shr 184 include/linux/math64.h static inline u64 mul_u64_u64_shr(u64 a, u64 mul, unsigned int shift) mul_u64_u64_shr 210 include/linux/math64.h static inline u64 mul_u64_u64_shr(u64 a, u64 b, unsigned int shift)