ipgre_header_ops  848 net/ipv4/ip_gre.c static const struct header_ops ipgre_header_ops = {
ipgre_header_ops  971 net/ipv4/ip_gre.c 			dev->header_ops = &ipgre_header_ops;
ipgre_header_ops  975 net/ipv4/ip_gre.c 		dev->header_ops = &ipgre_header_ops;