net_protocol 95 include/net/protocol.h extern const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS]; net_protocol 103 include/net/protocol.h int inet_add_protocol(const struct net_protocol *prot, unsigned char num); net_protocol 104 include/net/protocol.h int inet_del_protocol(const struct net_protocol *prot, unsigned char num);