[NET]: Remove unused security member in sk_buff

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/skbuff.h

@@ -183,7 +183,6 @@ struct skb_shared_info {
  *	@priority: Packet queueing priority
  *	@users: User count - see {datagram,tcp}.c
  *	@protocol: Packet protocol from driver
- *	@security: Security level of packet
  *	@truesize: Buffer size 
  *	@head: Head of buffer
  *	@data: Data head pointer
@@ -255,8 +254,7 @@ struct sk_buff {
 				pkt_type,
 				ip_summed;
 	__u32			priority;
-	unsigned short		protocol,
-				security;
+	unsigned short		protocol;
 
 	void			(*destructor)(struct sk_buff *skb);
 #ifdef CONFIG_NETFILTER

include/linux/tc_ematch/tc_em_meta.h

@@ -45,7 +45,7 @@ enum
 	TCF_META_ID_REALDEV,
 	TCF_META_ID_PRIORITY,
 	TCF_META_ID_PROTOCOL,
-	TCF_META_ID_SECURITY,
+	TCF_META_ID_SECURITY, /* obsolete */
 	TCF_META_ID_PKTTYPE,
 	TCF_META_ID_PKTLEN,
 	TCF_META_ID_DATALEN,

net/core/skbuff.c

@@ -357,7 +357,6 @@ struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask)
 	C(ip_summed);
 	C(priority);
 	C(protocol);
-	C(security);
 	n->destructor = NULL;
 #ifdef CONFIG_NETFILTER
 	C(nfmark);
@@ -422,7 +421,6 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->pkt_type	= old->pkt_type;
 	new->stamp	= old->stamp;
 	new->destructor = NULL;
-	new->security	= old->security;
 #ifdef CONFIG_NETFILTER
 	new->nfmark	= old->nfmark;
 	new->nfcache	= old->nfcache;

net/ipv4/ip_output.c

@@ -389,7 +389,6 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->pkt_type = from->pkt_type;
 	to->priority = from->priority;
 	to->protocol = from->protocol;
-	to->security = from->security;
 	dst_release(to->dst);
 	to->dst = dst_clone(from->dst);
 	to->dev = from->dev;

net/ipv6/ip6_output.c

@@ -465,7 +465,6 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->pkt_type = from->pkt_type;
 	to->priority = from->priority;
 	to->protocol = from->protocol;
-	to->security = from->security;
 	dst_release(to->dst);
 	to->dst = dst_clone(from->dst);
 	to->dev = from->dev;

net/sched/em_meta.c

@@ -205,11 +205,6 @@ META_COLLECTOR(int_protocol)
 	dst->value = skb->protocol;
 }
 
-META_COLLECTOR(int_security)
-{
-	dst->value = skb->security;
-}
-
 META_COLLECTOR(int_pkttype)
 {
 	dst->value = skb->pkt_type;
@@ -524,7 +519,6 @@ static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = {
 		[META_ID(REALDEV)]		= META_FUNC(int_realdev),
 		[META_ID(PRIORITY)]		= META_FUNC(int_priority),
 		[META_ID(PROTOCOL)]		= META_FUNC(int_protocol),
-		[META_ID(SECURITY)]		= META_FUNC(int_security),
 		[META_ID(PKTTYPE)]		= META_FUNC(int_pkttype),
 		[META_ID(PKTLEN)]		= META_FUNC(int_pktlen),
 		[META_ID(DATALEN)]		= META_FUNC(int_datalen),