__cpu_to_le64
#define cpu_to_le64(x) (u64)__cpu_to_le64((u64)(x))
#define cpu_to_le64p(x) (u64)__cpu_to_le64(*(u64*)(x))
#define cpu_to_sle64(x) (s64)__cpu_to_le64((s64)(x))
#define cpu_to_sle64p(x) (s64)__cpu_to_le64(*(s64*)(x))