cfg80211: allow registering more than one beacon listener

The commit:

commit 5e760230e42cf759bd923457ca2753aacf2e656e
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Fri Nov 4 11:18:17 2011 +0100

    cfg80211: allow registering to beacons

allowed only a single process to register for beacon events
per wiphy.  This breaks cases where a user may want two or
more VIFs on a wiphy and run a seperate hostapd process on
each vif.

This patch allows multiple beacon listeners, fixing the
regression.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/net/wireless/core.h b/net/wireless/core.h
index b8eb743fe7da..e53831c876bb 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -55,7 +55,8 @@ struct cfg80211_registered_device {
         int opencount; /* also protected by devlist_mtx */
         wait_queue_head_t dev_wait;
 
-        u32 ap_beacons_nlportid;
+        struct list_head beacon_registrations;
+        spinlock_t beacon_registrations_lock;
 
         /* protected by RTNL only */
         int num_running_ifaces;
@@ -260,6 +261,10 @@ enum cfg80211_chan_mode {
         CHAN_MODE_EXCLUSIVE,
 };
 
+struct cfg80211_beacon_registration {
+        struct list_head list;
+        u32 nlportid;
+};
 
 /* free object */
 extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);