Lines Matching refs:csum
58 static __always_inline __u16 csum_fold_helper(__u32 csum)
60 return ~((csum & 0xffff) + (csum >> 16));
64 __u32 *csum)
66 *csum = bpf_csum_diff(0, 0, data_start, data_size, *csum);
67 *csum = csum_fold_helper(*csum);
85 __u32 csum = 0;
100 ipv4_csum(icmp_hdr, ICMP_TOOBIG_PAYLOAD_SIZE, &csum);
101 icmp_hdr->checksum = csum;
112 csum = 0;
113 ipv4_csum(iph, sizeof(struct iphdr), &csum);
114 iph->check = csum;