[LLC]: llc_mac_hdr_init const arguments

Cleanup of LLC.  llc_mac_hdr_init can take constant arguments,
and it is defined twice once in llc_output.h that is otherwise unused.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/llc.h

@@ -71,7 +71,7 @@ extern int llc_rcv(struct sk_buff *skb, struct net_device *dev,
 		   struct packet_type *pt, struct net_device *orig_dev);
 
 extern int llc_mac_hdr_init(struct sk_buff *skb,
-			    unsigned char *sa, unsigned char *da);
+			    const unsigned char *sa, const unsigned char *da);
 
 extern void llc_add_pack(int type, void (*handler)(struct llc_sap *sap,
 						   struct sk_buff *skb));

net/llc/llc_c_ac.c

@@ -27,7 +27,6 @@
 #include <net/llc_pdu.h>
 #include <net/llc.h>
 
-#include "llc_output.h"
 
 static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb);
 static void llc_process_tmr_ev(struct sock *sk, struct sk_buff *skb);

net/llc/llc_output.c

@@ -30,7 +30,8 @@
  *	Fills MAC header fields, depending on MAC type. Returns 0, If MAC type
  *	is a valid type and initialization completes correctly 1, otherwise.
  */
-int llc_mac_hdr_init(struct sk_buff *skb, unsigned char *sa, unsigned char *da)
+int llc_mac_hdr_init(struct sk_buff *skb,
+		     const unsigned char *sa, const unsigned char *da)
 {
 	int rc = 0;
 

net/llc/llc_output.h

-#ifndef LLC_OUTPUT_H
-#define LLC_OUTPUT_H
-/*
- * Copyright (c) 1997 by Procom Technology, Inc.
- * 		 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *
- * This program can be redistributed or modified under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation.
- * This program is distributed without any warranty or implied warranty
- * of merchantability or fitness for a particular purpose.
- *
- * See the GNU General Public License version 2 for more details.
- */
-
-struct sk_buff;
-
-int llc_mac_hdr_init(struct sk_buff *skb, unsigned char *sa, unsigned char *da);
-
-#endif /* LLC_OUTPUT_H */

net/llc/llc_s_ac.c

@@ -24,7 +24,7 @@
 #include <net/llc_s_ac.h>
 #include <net/llc_s_ev.h>
 #include <net/llc_sap.h>
-#include "llc_output.h"
+
 
 /**
  *	llc_sap_action_unit_data_ind - forward UI PDU to network layer