uwb: remove unused beacon group join/leave events

The UWB_NOTIF_BG_JOIN/UWB_NOTIF_BG_LEAVE events have been
superceeded by the channel_changed callback in struct uwb_pal.
Signed-off-by: David Vrabel <david.vrabel@csr.com>

drivers/uwb/beacon.c

@@ -140,10 +140,8 @@ int uwb_rc_beacon(struct uwb_rc *rc, int channel, unsigned bpst_offset)
 		}
 	}
 
-	if (result >= 0) {
+	if (result >= 0)
 		rc->beaconing = channel;
-		uwb_notify(rc, NULL, uwb_bg_joined(rc) ? UWB_NOTIF_BG_JOIN : UWB_NOTIF_BG_LEAVE);
-	}
 	return result;
 }
 
@@ -581,19 +579,6 @@ error:
 	return result;
 }
 
-/**
- * uwb_bg_joined - is the RC in a beacon group?
- * @rc: the radio controller
- *
- * Returns true if the radio controller is in a beacon group (even if
- * it's the sole member).
- */
-int uwb_bg_joined(struct uwb_rc *rc)
-{
-	return rc->beaconing != -1;
-}
-EXPORT_SYMBOL_GPL(uwb_bg_joined);
-
 /*
  * Print beaconing state.
  */

include/linux/uwb.h

@@ -479,7 +479,6 @@ ssize_t uwb_rc_vcmd(struct uwb_rc *rc, const char *cmd_name,
 		    struct uwb_rccb *cmd, size_t cmd_size,
 		    u8 expected_type, u16 expected_event,
 		    struct uwb_rceb **preply);
-int uwb_bg_joined(struct uwb_rc *rc);
 
 size_t __uwb_addr_print(char *, size_t, const unsigned char *, int);
 
@@ -568,7 +567,9 @@ static inline bool uwb_rsv_is_owner(struct uwb_rsv *rsv)
 }
 
 /**
- * Events generated by UWB that can be passed to any listeners
+ * enum uwb_notifs - UWB events that can be passed to any listeners
+ * @UWB_NOTIF_ONAIR: a new neighbour has joined the beacon group.
+ * @UWB_NOTIF_OFFAIR: a neighbour has left the beacon group.
  *
  * Higher layers can register callback functions with the radio
  * controller using uwb_notifs_register(). The radio controller
@@ -576,8 +577,6 @@ static inline bool uwb_rsv_is_owner(struct uwb_rsv *rsv)
  * nodes when an event occurs.
  */
 enum uwb_notifs {
-	UWB_NOTIF_BG_JOIN = 0,	/* radio controller joined a beacon group */
-	UWB_NOTIF_BG_LEAVE = 1,	/* radio controller left a beacon group */
 	UWB_NOTIF_ONAIR,
 	UWB_NOTIF_OFFAIR,
 };