compat_nf_getsockopt 230 include/linux/netfilter.h int compat_nf_getsockopt(struct sock *sk, u_int8_t pf, int optval, compat_nf_getsockopt 1218 net/ipv4/ip_sockglue.c err = compat_nf_getsockopt(sk, PF_INET, optname, optval, &len); compat_nf_getsockopt 1159 net/ipv6/ipv6_sockglue.c err = compat_nf_getsockopt(sk, PF_INET6,