Symbol: ipf_pcksum
sys/netpfil/ipfilter/netinet/fil.c
3419
sum2 = ipf_pcksum(fin, off, sum);
sys/netpfil/ipfilter/netinet/ip_fil.h
1798
extern u_int ipf_pcksum(fr_info_t *, int, u_int);
sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c
1440
return (ipf_pcksum(fin, off, sum));