2584 					pf_change_a(&sack.start, &th->th_sum,  in pf_modulate_sack()
2587 					pf_change_a(&sack.end, &th->th_sum,  in pf_modulate_sack()
2760 		th->th_sum = in_cksum(m, len);  in pf_send_tcp()
2784 		th->th_sum = in6_cksum(m, IPPROTO_TCP,  in pf_send_tcp()
5019 				    &th->th_sport, pd->ip_sum, &th->th_sum,  in pf_test_rule()
5036 				    &th->th_sum, &pd->ndaddr,  in pf_test_rule()
5374 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
5441 					    &th->th_sum, &pd->bdaddr,  in pf_test_rule()
5849 				pf_change_a(&th->th_seq, &th->th_sum,  in pf_test_rule()
6069 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
6075 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
6844 			th->th_sum = pf_cksum_fixup(th->th_sum,  in pf_pptp_handler()
6848 			th->th_sum = pf_cksum_fixup(th->th_sum,  in pf_pptp_handler()
7176 			pf_change_a(&th->th_seq, &th->th_sum, htonl(seq +  in pf_test_state_tcp()
7178 			pf_change_a(&th->th_ack, &th->th_sum, htonl(ack), 0);  in pf_test_state_tcp()
7245 			pf_change_a(&th->th_seq, &th->th_sum, htonl(seq +  in pf_test_state_tcp()
7247 			pf_change_a(&th->th_ack, &th->th_sum, htonl(ack), 0);  in pf_test_state_tcp()
7525 			    pd->ip_sum, &th->th_sum, &sk->gwy.addr,  in pf_test_state_tcp()
7532 					    &th->th_sum, &sk->lan.addr,  in pf_test_state_tcp()
7538 					    &th->th_sum, &sk->ext_lan.addr,  in pf_test_state_tcp()
7544 					    &th->th_sum, &sk->ext_gwy.addr,  in pf_test_state_tcp()
7550 					    &th->th_sum, &sk->gwy.addr,  in pf_test_state_tcp()
7557 				    &th->th_sum, &sk->lan.addr,  in pf_test_state_tcp()
8239 					    &th.th_sum, &daddr2->addr,  in pf_test_state_icmp()
8245 					    &th.th_sum, &saddr2->addr,  in pf_test_state_icmp()