bpfilter_ip_set_sockopt    9 include/linux/bpfilter.h int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval,
bpfilter_ip_set_sockopt 1252 net/ipv4/ip_sockglue.c 		err = bpfilter_ip_set_sockopt(sk, optname, optval, optlen);