From 3fa417554b225a02d05cdc42ea77abea5fe734cd Mon Sep 17 00:00:00 2001
From: Ed Schouten <ed@FreeBSD.org>
Date: Sun, 16 Oct 2011 10:58:00 +0000
Subject: [PATCH] Forward declare mbuf and inpcb.

This fixes a compiler warning at WARNS=6 when including the header files
as follows:

	#include <sys/types.h>
	#include <netinet/in.h>
	#include <netinet/ip_var.h>
	#include <netinet/udp.h>
	#include <netinet/udp_var.h>
---
 sys/netinet/udp_var.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/netinet/udp_var.h b/sys/netinet/udp_var.h
index 7e7cfba2eeb8..6e5abd05c21b 100644
--- a/sys/netinet/udp_var.h
+++ b/sys/netinet/udp_var.h
@@ -51,6 +51,9 @@ struct udpiphdr {
 #define	ui_ulen		ui_u.uh_ulen
 #define	ui_sum		ui_u.uh_sum
 
+struct inpcb;
+struct mbuf;
+
 typedef void(*udp_tun_func_t)(struct mbuf *, int off, struct inpcb *);
 
 /*