__u64
#define __ha48 __u64(0xffffffff8000)
#define __ha32 __u64(0xffff8000)
#define highesta(x) __ha(__u64(x), 48)
#define highest(x) __hi(__u64(x), 48)
#define higher(x) __ha(__u64(x), 32)
#define higher(x) __hi(__u64(x), 32)