ISDN: Remove ISDN_NET_CONNECTED flags

The same information is present as (->isdn_slot >= 0), so don't
duplicate it (and risk it getting out of sync)

drivers/isdn/i4l/isdn_net.c

@@ -265,7 +265,6 @@ isdn_net_bind_channel(isdn_net_local * lp, int idx)
 
 	save_flags(flags);
 	cli();
-	lp->flags |= ISDN_NET_CONNECTED;
 	lp->isdn_slot = idx;
 	isdn_slot_set_rx_netdev(lp->isdn_slot, lp->netdev);
 	isdn_slot_set_st_netdev(lp->isdn_slot, lp->netdev);
@@ -297,7 +296,6 @@ isdn_net_unbind_channel(isdn_net_local * lp)
 		isdn_slot_set_st_netdev(lp->isdn_slot, NULL);
 		isdn_slot_free(lp->isdn_slot, ISDN_USAGE_NET);
 	}
-	lp->flags &= ~ISDN_NET_CONNECTED;
 	lp->isdn_slot = -1;
 
 	restore_flags(flags);
@@ -1556,7 +1554,6 @@ isdn_net_find_icall(int di, int ch, int idx, setup_parm *setup)
 				isdn_slot_set_st_netdev(idx, lp->netdev);
 				lp->isdn_slot = slot;
 				lp->ppp_slot = -1;
-				lp->flags |= ISDN_NET_CONNECTED;
 				
 				lp->outgoing = 0;
 				lp->huptimer = 0;

drivers/isdn/i4l/isdn_net.h

@@ -159,7 +159,7 @@ static inline void isdn_net_device_wake_queue(isdn_net_local *lp)
 
 static inline int isdn_net_bound(isdn_net_local *lp)
 {
-	return lp->flags & ISDN_NET_CONNECTED;
+	return lp->isdn_slot >= 0;
 }
 
 static inline int

include/linux/isdn.h

@@ -255,7 +255,6 @@ typedef struct {
 /*=================== Start of ip-over-ISDN stuff =========================*/
 
 /* Feature- and status-flags for a net-interface */
-#define ISDN_NET_CONNECTED  0x01       /* Bound to ISDN-Channel             */
 #define ISDN_NET_SECURE     0x02       /* Accept calls from phonelist only  */
 #define ISDN_NET_CALLBACK   0x04       /* activate callback                 */
 #define ISDN_NET_CBHUP      0x08       /* hangup before callback            */