2641 					pf_change_a(&sack.start, &th->th_sum,  in pf_modulate_sack()
2644 					pf_change_a(&sack.end, &th->th_sum,  in pf_modulate_sack()
2817 		th->th_sum = in_cksum(m, len);  in pf_send_tcp()
2841 		th->th_sum = in6_cksum(m, IPPROTO_TCP,  in pf_send_tcp()
5075 				    &th->th_sport, pd->ip_sum, &th->th_sum,  in pf_test_rule()
5092 				    &th->th_sum, &pd->ndaddr,  in pf_test_rule()
5430 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
5497 					    &th->th_sum, &pd->bdaddr,  in pf_test_rule()
5905 				pf_change_a(&th->th_seq, &th->th_sum,  in pf_test_rule()
6125 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
6131 					    &th->th_sum, &pd->baddr,  in pf_test_rule()
6900 			th->th_sum = pf_cksum_fixup(th->th_sum,  in pf_pptp_handler()
6904 			th->th_sum = pf_cksum_fixup(th->th_sum,  in pf_pptp_handler()
7232 			pf_change_a(&th->th_seq, &th->th_sum, htonl(seq +  in pf_test_state_tcp()
7234 			pf_change_a(&th->th_ack, &th->th_sum, htonl(ack), 0);  in pf_test_state_tcp()
7301 			pf_change_a(&th->th_seq, &th->th_sum, htonl(seq +  in pf_test_state_tcp()
7303 			pf_change_a(&th->th_ack, &th->th_sum, htonl(ack), 0);  in pf_test_state_tcp()
7581 			    pd->ip_sum, &th->th_sum, &sk->gwy.addr,  in pf_test_state_tcp()
7588 					    &th->th_sum, &sk->lan.addr,  in pf_test_state_tcp()
7594 					    &th->th_sum, &sk->ext_lan.addr,  in pf_test_state_tcp()
7600 					    &th->th_sum, &sk->ext_gwy.addr,  in pf_test_state_tcp()
7606 					    &th->th_sum, &sk->gwy.addr,  in pf_test_state_tcp()
7613 				    &th->th_sum, &sk->lan.addr,  in pf_test_state_tcp()
8295 					    &th.th_sum, &daddr2->addr,  in pf_test_state_icmp()
8301 					    &th.th_sum, &saddr2->addr,  in pf_test_state_icmp()