__u32
static __u32 seq = 0;
#define __ha16 __u32(0x8000)
#define ha(x) __ha(__u32(x), 16)
#define hi(x) __hi(__u32(x), 16)
#define lo(x) (__u32(x) & 0xffff)
__u32 map_info;
__u32 padding;
static const __u32 crc32_table[256] = {