2625 					pf_change_a(&sack.start, &th->th_sum,  in pf_modulate_sack()
2628 					pf_change_a(&sack.end, &th->th_sum,  in pf_modulate_sack()
2801 		th->th_sum = in_cksum(m, len);  in pf_send_tcp()
2825 		th->th_sum = in6_cksum(m, IPPROTO_TCP,  in pf_send_tcp()
5059 				    &th->th_sport, pd->ip_sum, &th->th_sum,  in pf_test_rule()
5076 				    &th->th_sum, &pd->ndaddr,  in pf_test_rule()
5413 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
5480 					    &th->th_sum, &pd->bdaddr,  in pf_test_rule()
5888 				pf_change_a(&th->th_seq, &th->th_sum,  in pf_test_rule()
6108 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
6114 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
6883 			th->th_sum = pf_cksum_fixup(th->th_sum,  in pf_pptp_handler()
6887 			th->th_sum = pf_cksum_fixup(th->th_sum,  in pf_pptp_handler()
7215 			pf_change_a(&th->th_seq, &th->th_sum, htonl(seq +  in pf_test_state_tcp()
7217 			pf_change_a(&th->th_ack, &th->th_sum, htonl(ack), 0);  in pf_test_state_tcp()
7284 			pf_change_a(&th->th_seq, &th->th_sum, htonl(seq +  in pf_test_state_tcp()
7286 			pf_change_a(&th->th_ack, &th->th_sum, htonl(ack), 0);  in pf_test_state_tcp()
7564 			    pd->ip_sum, &th->th_sum, &sk->gwy.addr,  in pf_test_state_tcp()
7571 					    &th->th_sum, &sk->lan.addr,  in pf_test_state_tcp()
7577 					    &th->th_sum, &sk->ext_lan.addr,  in pf_test_state_tcp()
7583 					    &th->th_sum, &sk->ext_gwy.addr,  in pf_test_state_tcp()
7589 					    &th->th_sum, &sk->gwy.addr,  in pf_test_state_tcp()
7596 				    &th->th_sum, &sk->lan.addr,  in pf_test_state_tcp()
8278 					    &th.th_sum, &daddr2->addr,  in pf_test_state_icmp()
8284 					    &th.th_sum, &saddr2->addr,  in pf_test_state_icmp()