1 files changed, 34 insertions, 20 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c2e46e88f3c9..a1bf46c64b93 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -20,6 +20,7 @@
 #include <linux/rtnetlink.h>
 #include <linux/bitmap.h>
 #include <linux/pm_qos_params.h>
+#include <linux/inetdevice.h>
 #include <net/net_namespace.h>
 #include <net/cfg80211.h>
 
@@ -317,23 +318,6 @@ static void ieee80211_recalc_smps_work(struct work_struct *work)
 }
 
 #ifdef CONFIG_INET
-int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata)
-{
-        struct in_device *idev;
-        int ret = 0;
-
-        BUG_ON(!sdata);
-        ASSERT_RTNL();
-
-        idev = sdata->dev->ip_ptr;
-        if (!idev)
-                return 0;
-
-        ret = drv_configure_arp_filter(sdata->local, &sdata->vif,
-                                       idev->ifa_list);
-        return ret;
-}
-
 static int ieee80211_ifa_changed(struct notifier_block *nb,
                                  unsigned long data, void *arg)
 {
@@ -343,8 +327,11 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
                              ifa_notifier);
         struct net_device *ndev = ifa->ifa_dev->dev;
         struct wireless_dev *wdev = ndev->ieee80211_ptr;
+        struct in_device *idev;
         struct ieee80211_sub_if_data *sdata;
+        struct ieee80211_bss_conf *bss_conf;
         struct ieee80211_if_managed *ifmgd;
+        int c = 0;
 
         if (!netif_running(ndev))
                 return NOTIFY_DONE;
@@ -356,17 +343,44 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
         if (wdev->wiphy != local->hw.wiphy)
                 return NOTIFY_DONE;
 
-        /* We are concerned about IP addresses only when associated */
         sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
+        bss_conf = &sdata->vif.bss_conf;
 
         /* ARP filtering is only supported in managed mode */
         if (sdata->vif.type != NL80211_IFTYPE_STATION)
                 return NOTIFY_DONE;
 
+        idev = sdata->dev->ip_ptr;
+        if (!idev)
+                return NOTIFY_DONE;
+
         ifmgd = &sdata->u.mgd;
         mutex_lock(&ifmgd->mtx);
-        if (ifmgd->associated)
-                ieee80211_set_arp_filter(sdata);
+
+        /* Copy the addresses to the bss_conf list */
+        ifa = idev->ifa_list;
+        while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) {
+                bss_conf->arp_addr_list[c] = ifa->ifa_address;
+                ifa = ifa->ifa_next;
+                c++;
+        }
+
+        /* If not all addresses fit the list, disable filtering */
+        if (ifa) {
+                sdata->arp_filter_state = false;
+                c = 0;
+        } else {
+                sdata->arp_filter_state = true;
+        }
+        bss_conf->arp_addr_cnt = c;
+
+        /* Configure driver only if associated */
+        if (ifmgd->associated) {
+                bss_conf->arp_filter_enabled = sdata->arp_filter_state;
+                ieee80211_bss_info_change_notify(sdata,
+                                                 BSS_CHANGED_ARP_FILTER);
+        }
+
         mutex_unlock(&ifmgd->mtx);
 
         return NOTIFY_DONE;