21 extern __wsum csum_partial(const void *buff, int len, __wsum sum);
33 				       int len, __wsum sum)  in csum_partial_copy_nocheck()  argument
36 	return csum_partial(dst, len, sum);  in csum_partial_copy_nocheck()
49 					 int len, __wsum sum, int *err_ptr)  in csum_partial_copy_from_user()  argument
56 	return csum_partial(dst, len, sum);  in csum_partial_copy_from_user()
67 static inline __sum16 csum_fold(__wsum sum)  in csum_fold()  argument
72 		: "=r" (sum)  in csum_fold()
73 		: "r" ((__force u32)sum << 16),  in csum_fold()
74 		  "0" ((__force u32)sum & 0xffff0000)  in csum_fold()
76 	return (__force __sum16)(~(__force u32)sum >> 16);  in csum_fold()
92 		  __u8 proto, __wsum sum)  in csum_tcpudp_nofold()  argument
98 		: "=r" (sum)  in csum_tcpudp_nofold()
99 	    : "g" (daddr), "g" (saddr), "g" ((len + proto) << 8), "0" (sum));  in csum_tcpudp_nofold()
100 	return sum;  in csum_tcpudp_nofold()
109 					__wsum sum)  in csum_tcpudp_magic()  argument
111 	return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));  in csum_tcpudp_magic()
121 	unsigned int sum;  in ip_fast_csum()  local
143 	: "=r" (sum), "=r" (iph), "=r" (ihl)  in ip_fast_csum()
146 	return (__force __sum16)sum;  in ip_fast_csum()