19 unsigned int csum_partial(const void *buff, int len, __wsum sum);
21 					unsigned int sum, int *csum_err);
23 					int len, unsigned int sum);
36 			__wsum sum, int *err_ptr)  in csum_and_copy_to_user()  argument
38 	sum = csum_partial(src, len, sum);  in csum_and_copy_to_user()
43 	return sum;  in csum_and_copy_to_user()
52 static inline __sum16 csum_fold(__wsum sum)  in csum_fold()  argument
71 		: "=r" (sum)  in csum_fold()
72 		: "0" (sum));  in csum_fold()
73 	return sum;  in csum_fold()
85 	unsigned int sum;  in ip_fast_csum()  local
123 		: "=&r" (sum), "=&r" (iph), "=&r" (ihl), "=&r" (dummy)  in ip_fast_csum()
126 	return csum_fold(sum);  in ip_fast_csum()
131 		unsigned short proto, __wsum sum)  in csum_tcpudp_nofold()  argument
152 		: "=r" (sum)  in csum_tcpudp_nofold()
155 		"r" (sum));  in csum_tcpudp_nofold()
156 	return sum;  in csum_tcpudp_nofold()
165 		unsigned short proto, __wsum sum)  in csum_tcpudp_magic()  argument
167 	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));  in csum_tcpudp_magic()
184 				__wsum sum)  in csum_ipv6_magic()  argument
238 		: "=r" (sum), "=r" (proto)  in csum_ipv6_magic()
240 		  "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));  in csum_ipv6_magic()
242 	return csum_fold(sum);  in csum_ipv6_magic()