F 47 crypto/md4.c static inline u32 F(u32 x, u32 y, u32 z) F 29 fs/cifs/md4.c F(__u32 X, __u32 Y, __u32 Z) F 6 lib/halfmd4.c #define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) F 52 scripts/mod/sumversion.c static inline uint32_t F(uint32_t x, uint32_t y, uint32_t z)