ip_options_undo   717 include/net/ip.h void ip_options_undo(struct ip_options *opt);
ip_options_undo    99 net/ipv4/ip_sockglue.c 	ip_options_undo(opt);
ip_options_undo  1351 net/ipv4/ip_sockglue.c 		ip_options_undo(opt);