Phonet: receive pipe control requests as out-of-band data

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/phonet/pep.h

@@ -33,6 +33,8 @@ struct pep_sock {
 
 	/* Connected socket stuff: */
 	struct sock		*listener;
+	struct sk_buff_head	ctrlreq_queue;
+#define PNPIPE_CTRLREQ_MAX	10
 	u16			peer_type;	/* peer type/subtype */
 	u8			pipe_handle;