Clean up some #endif comments removing from short sections. Add #endif

comments to longer, also refining strange ones.

Properly use #ifdef rather than #if defined() where possible.  Four
#if defined(PCBGROUP) occurances (netinet and netinet6) were ignored to
avoid conflicts with eventually upcoming changes for RSS.

Reported by:	bde (most)
Reviewed by:	bde
MFC after:	3 days

sys/netinet/if_ether.c

@@ -64,7 +64,7 @@ __FBSDID("$FreeBSD$");
 #include <netinet/in_var.h>
 #include <net/if_llatbl.h>
 #include <netinet/if_ether.h>
-#if defined(INET)
+#ifdef INET
 #include <netinet/ip_carp.h>
 #endif
 

sys/netinet/in_pcb.c

@@ -196,7 +196,7 @@ SYSCTL_VNET_INT(_net_inet_ip_portrange, OID_AUTO, randomtime, CTLFLAG_RW,
 	&VNET_NAME(ipport_randomtime), 0,
 	"Minimum time to keep sequental port "
 	"allocation before switching to a random one");
-#endif
+#endif /* INET */
 
 /*
  * in_pcb.c: manage the Protocol Control Blocks.
@@ -1038,7 +1038,7 @@ in_pcbdisconnect(struct inpcb *inp)
 	inp->inp_fport = 0;
 	in_pcbrehash(inp);
 }
-#endif
+#endif /* INET */
 
 /*
  * in_pcbdetach() is responsibe for disassociating a socket from an inpcb.
@@ -1169,7 +1169,7 @@ in_pcbfree(struct inpcb *inp)
 #ifdef IPSEC
 	if (inp->inp_sp != NULL)
 		ipsec_delete_pcbpolicy(inp);
-#endif /* IPSEC */
+#endif
 	inp->inp_gencnt = ++pcbinfo->ipi_gencnt;
 	in_pcbremlists(inp);
 #ifdef INET6
@@ -1586,7 +1586,7 @@ in_pcblookup_group(struct inpcbinfo *pcbinfo, struct inpcbgroup *pcbgroup,
 				if (inp->inp_vflag & INP_IPV6PROTO)
 					local_wild_mapped = inp;
 				else
-#endif /* INET6 */
+#endif
 					if (injail)
 						jail_wild = inp;
 					else
@@ -1601,7 +1601,7 @@ in_pcblookup_group(struct inpcbinfo *pcbinfo, struct inpcbgroup *pcbgroup,
 #ifdef INET6
 		if (inp == NULL)
 			inp = local_wild_mapped;
-#endif /* defined(INET6) */
+#endif
 		if (inp != NULL)
 			goto found;
 	} /* if (lookupflags & INPLOOKUP_WILDCARD) */
@@ -1731,7 +1731,7 @@ in_pcblookup_hash_locked(struct inpcbinfo *pcbinfo, struct in_addr faddr,
 				if (inp->inp_vflag & INP_IPV6PROTO)
 					local_wild_mapped = inp;
 				else
-#endif /* INET6 */
+#endif
 					if (injail)
 						jail_wild = inp;
 					else
@@ -1747,7 +1747,7 @@ in_pcblookup_hash_locked(struct inpcbinfo *pcbinfo, struct in_addr faddr,
 #ifdef INET6
 		if (local_wild_mapped != NULL)
 			return (local_wild_mapped);
-#endif /* defined(INET6) */
+#endif
 	} /* if ((lookupflags & INPLOOKUP_WILDCARD) != 0) */
 
 	return (NULL);
@@ -1871,7 +1871,7 @@ in_pcbinshash_internal(struct inpcb *inp, int do_pcbgroup_update)
 	if (inp->inp_vflag & INP_IPV6)
 		hashkey_faddr = inp->in6p_faddr.s6_addr32[3] /* XXX */;
 	else
-#endif /* INET6 */
+#endif
 	hashkey_faddr = inp->inp_faddr.s_addr;
 
 	pcbhash = &pcbinfo->ipi_hashbase[INP_PCBHASH(hashkey_faddr,
@@ -1958,7 +1958,7 @@ in_pcbrehash_mbuf(struct inpcb *inp, struct mbuf *m)
 	if (inp->inp_vflag & INP_IPV6)
 		hashkey_faddr = inp->in6p_faddr.s6_addr32[3] /* XXX */;
 	else
-#endif /* INET6 */
+#endif
 	hashkey_faddr = inp->inp_faddr.s_addr;
 
 	head = &pcbinfo->ipi_hashbase[INP_PCBHASH(hashkey_faddr,
@@ -2226,14 +2226,13 @@ db_print_inconninfo(struct in_conninfo *inc, const char *name, int indent)
 		/* IPv6. */
 		ip6_sprintf(laddr_str, &inc->inc6_laddr);
 		ip6_sprintf(faddr_str, &inc->inc6_faddr);
-	} else {
+	} else
 #endif
+	{
 		/* IPv4. */
 		inet_ntoa_r(inc->inc_laddr, laddr_str);
 		inet_ntoa_r(inc->inc_faddr, faddr_str);
-#ifdef INET6
 	}
-#endif
 	db_print_indent(indent);
 	db_printf("inc_laddr %s   inc_lport %u\n", laddr_str,
 	    ntohs(inc->inc_lport));
@@ -2446,4 +2445,4 @@ DB_SHOW_COMMAND(inpcb, db_show_inpcb)
 
 	db_print_inpcb(inp, "inpcb", 0);
 }
-#endif
+#endif /* DDB */

sys/netinet/ip_ipsec.c

@@ -92,7 +92,7 @@ SYSCTL_VNET_INT(_net_inet_ipsec, OID_AUTO, filtertunnel,
 int
 ip_ipsec_filtertunnel(struct mbuf *m)
 {
-#if defined(IPSEC)
+#ifdef IPSEC
 
 	/*
 	 * Bypass packet filtering for packets previously handled by IPsec.

sys/netinet6/ip6_ipsec.c

@@ -103,7 +103,7 @@ SYSCTL_VNET_INT(_net_inet6_ipsec6, OID_AUTO,
 int
 ip6_ipsec_filtertunnel(struct mbuf *m)
 {
-#if defined(IPSEC)
+#ifdef IPSEC
 
 	/*
 	 * Bypass packet filtering for packets previously handled by IPsec.

sys/netipsec/xform_ipip.c

@@ -687,7 +687,7 @@ static struct ip6protosw ipe6_protosw = {
 };
 #endif /* INET6 && INET */
 
-#if defined(INET)
+#ifdef INET
 /*
  * Check the encapsulated packet to see if we want it
  */