Lines Matching refs:sum
20 * and adds in "sum" (32-bit).
30 static inline __wsum csum_partial(const void *buff, int len, __wsum sum)
38 : "+d" (sum), "+d" (reg2), "+d" (reg3) : : "cc", "memory");
39 return sum;
45 static inline __sum16 csum_fold(__wsum sum)
47 u32 csum = (__force u32) sum;
79 __u8 proto, __wsum sum)
81 __u64 csum = (__force __u64)sum;
96 __u8 proto, __wsum sum)
98 return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
114 __u64 sum = (__force __u64)csum;
116 sum += (__force __u32)saddr->s6_addr32[0];
117 sum += (__force __u32)saddr->s6_addr32[1];
118 sum += (__force __u32)saddr->s6_addr32[2];
119 sum += (__force __u32)saddr->s6_addr32[3];
120 sum += (__force __u32)daddr->s6_addr32[0];
121 sum += (__force __u32)daddr->s6_addr32[1];
122 sum += (__force __u32)daddr->s6_addr32[2];
123 sum += (__force __u32)daddr->s6_addr32[3];
124 sum += len;
125 sum += proto;
126 sum += (sum >> 32) | (sum << 32);
127 return csum_fold((__force __wsum)(sum >> 32));