cfg80211: allow users to request removing a BSS
This patch introduces cfg80211_unlink_bss, a function to
allow a driver to remove a BSS from the internal list and
make it not show up in scan results any more -- this is
to be used when the driver detects that the BSS is no
longer available.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index ec148f6..aacccc9 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -432,6 +432,27 @@
}
EXPORT_SYMBOL(cfg80211_put_bss);
+void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
+{
+ struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
+ struct cfg80211_internal_bss *bss;
+
+ if (WARN_ON(!pub))
+ return;
+
+ bss = container_of(pub, struct cfg80211_internal_bss, pub);
+
+ spin_lock_bh(&dev->bss_lock);
+
+ list_del(&bss->list);
+ rb_erase(&bss->rbn, &dev->bss_tree);
+
+ spin_unlock_bh(&dev->bss_lock);
+
+ kref_put(&bss->ref, bss_release);
+}
+EXPORT_SYMBOL(cfg80211_unlink_bss);
+
#ifdef CONFIG_WIRELESS_EXT
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,