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From: Luigi Rizzo <luigi@FreeBSD.org>
Date: Fri, 13 Feb 2009 18:04:56 +0000 (UTC)
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Subject: svn commit: r188586 - stable/7/sys/netinet
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Author: luigi
Date: Fri Feb 13 18:04:55 2009
New Revision: 188586
URL: http://svn.freebsd.org/changeset/base/188586

Log:
  document why certain headers are required.

Modified:
  stable/7/sys/netinet/ip_dummynet.c

Modified: stable/7/sys/netinet/ip_dummynet.c
==============================================================================
--- stable/7/sys/netinet/ip_dummynet.c	Fri Feb 13 17:45:09 2009	(r188585)
+++ stable/7/sys/netinet/ip_dummynet.c	Fri Feb 13 18:04:55 2009	(r188586)
@@ -70,15 +70,14 @@ __FBSDID("$FreeBSD$");
 #include <sys/time.h>
 #include <sys/sysctl.h>
 #include <sys/taskqueue.h>
-#include <net/if.h>
+#include <net/if.h>	/* IFNAMSIZ, struct ifaddr, ifq head, lock.h mutex.h */
 #include <net/netisr.h>
 #include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/in_var.h>
-#include <netinet/ip.h>
+#include <netinet/in_systm.h>	/* n_long, SYSCTL_DECL(_net) */
+#include <netinet/ip.h>	/* ip_len, ip_off */
 #include <netinet/ip_fw.h>
 #include <netinet/ip_dummynet.h>
-#include <netinet/ip_var.h>
+#include <netinet/ip_var.h>	/* ip_output(), IP_FORWARDING */
 
 #include <netinet/if_ether.h> /* various ether_* routines */
 
@@ -154,6 +153,9 @@ static struct callout dn_timeout;
 extern	void (*bridge_dn_p)(struct mbuf *, struct ifnet *);
 
 #ifdef SYSCTL_NODE
+SYSCTL_DECL(_net_inet);
+SYSCTL_DECL(_net_inet_ip);
+
 SYSCTL_NODE(_net_inet_ip, OID_AUTO, dummynet, CTLFLAG_RW, 0, "Dummynet");
 SYSCTL_INT(_net_inet_ip_dummynet, OID_AUTO, hash_size,
     CTLFLAG_RW, &dn_hash_size, 0, "Default hash table size");
@@ -889,7 +891,7 @@ dummynet_send(struct mbuf *m)
 		case DN_TO_IP_OUT:
 			ip_output(m, NULL, NULL, IP_FORWARDING, NULL, NULL);
 			break ;
-		  case DN_TO_IP_IN :
+		case DN_TO_IP_IN :
 			ip = mtod(m, struct ip *);
 			ip->ip_len = htons(ip->ip_len);
 			ip->ip_off = htons(ip->ip_off);