mac80211: add probe request filter flag

Using the frame registration notification, we
can see when probe requests are requested and
notify the low-level driver via filtering. The
flag is also set in AP and IBSS modes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index e99d1b60557c..f9163b12c7f1 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -280,8 +280,11 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
                         ieee80211_start_mesh(sdata);
                 } else if (sdata->vif.type == NL80211_IFTYPE_AP) {
                         local->fif_pspoll++;
+                        local->fif_probe_req++;
 
                         ieee80211_configure_filter(local);
+                } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+                        local->fif_probe_req++;
                 }
 
                 changed |= ieee80211_reset_erp_info(sdata);
@@ -428,8 +431,12 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
         if (sdata->flags & IEEE80211_SDATA_PROMISC)
                 atomic_dec(&local->iff_promiscs);
 
-        if (sdata->vif.type == NL80211_IFTYPE_AP)
+        if (sdata->vif.type == NL80211_IFTYPE_AP) {
                 local->fif_pspoll--;
+                local->fif_probe_req--;
+        } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+                local->fif_probe_req--;
+        }
 
         netif_addr_lock_bh(sdata->dev);
         spin_lock_bh(&local->filter_lock);