14 extern __wsum csum_partial(const void *buff, int len, __wsum sum);
16 					int len, __wsum sum);
18 					  int len, __wsum sum,
21 extern __wsum csum_partial(const void *buff, int len, __wsum sum);
26 				__wsum sum);
28 static inline __sum16 csum_fold(__wsum sum)  in csum_fold()  argument
33 		: "=r" (sum)  in csum_fold()
34 		: "r" (sum << 16), "0" (sum & 0xffff0000)  in csum_fold()
37 	return (~sum) >> 16;  in csum_fold()
44 					__wsum sum)  in csum_tcpudp_nofold()  argument
56 		: "=r" (sum)  in csum_tcpudp_nofold()
57 		: "r" (daddr), "r"(saddr), "r"(tmp), "0"(sum)  in csum_tcpudp_nofold()
60 	return sum;  in csum_tcpudp_nofold()
71 					__wsum sum)  in csum_tcpudp_magic()  argument
73 	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));  in csum_tcpudp_magic()
83 				    __wsum sum, int *err_ptr);