Phonet: implement GPRS virtual interface over PEP socket

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/phonet/pep.h b/include/net/phonet/pep.h
index 4d79564..fcd7930 100644
--- a/include/net/phonet/pep.h
+++ b/include/net/phonet/pep.h
@@ -35,6 +35,7 @@
 	struct sock		*listener;
 	struct sk_buff_head	ctrlreq_queue;
 #define PNPIPE_CTRLREQ_MAX	10
+	int			ifindex;
 	u16			peer_type;	/* peer type/subtype */
 	u8			pipe_handle;