Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...

[pandora-kernel.git] / net / wireless / scan.c

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 73a441d..ae0c225 100644 (file)
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -100,14 +100,14 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
        rdev = container_of(wk, struct cfg80211_registered_device,
                            sched_scan_results_wk);
 
-       cfg80211_lock_rdev(rdev);
+       mutex_lock(&rdev->sched_scan_mtx);
 
        /* we don't have sched_scan_req anymore if the scan is stopping */
        if (rdev->sched_scan_req)
                nl80211_send_sched_scan_results(rdev,
                                                rdev->sched_scan_req->dev);
 
-       cfg80211_unlock_rdev(rdev);
+       mutex_unlock(&rdev->sched_scan_mtx);
 }
 
 void cfg80211_sched_scan_results(struct wiphy *wiphy)
@@ -123,9 +123,9 @@ void cfg80211_sched_scan_stopped(struct wiphy *wiphy)
 {
        struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-       cfg80211_lock_rdev(rdev);
+       mutex_lock(&rdev->sched_scan_mtx);
        __cfg80211_stop_sched_scan(rdev, true);
-       cfg80211_unlock_rdev(rdev);
+       mutex_unlock(&rdev->sched_scan_mtx);
 }
 EXPORT_SYMBOL(cfg80211_sched_scan_stopped);
 
@@ -135,7 +135,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
        int err;
        struct net_device *dev;
 
-       ASSERT_RDEV_LOCK(rdev);
+       lockdep_assert_held(&rdev->sched_scan_mtx);
 
        if (!rdev->sched_scan_req)
                return 0;
@@ -267,13 +267,35 @@ static bool is_bss(struct cfg80211_bss *a,
        return memcmp(ssidie + 2, ssid, ssid_len) == 0;
 }
 
+static bool is_mesh_bss(struct cfg80211_bss *a)
+{
+       const u8 *ie;
+
+       if (!WLAN_CAPABILITY_IS_STA_BSS(a->capability))
+               return false;
+
+       ie = cfg80211_find_ie(WLAN_EID_MESH_ID,
+                             a->information_elements,
+                             a->len_information_elements);
+       if (!ie)
+               return false;
+
+       ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG,
+                             a->information_elements,
+                             a->len_information_elements);
+       if (!ie)
+               return false;
+
+       return true;
+}
+
 static bool is_mesh(struct cfg80211_bss *a,
                    const u8 *meshid, size_t meshidlen,
                    const u8 *meshcfg)
 {
        const u8 *ie;
 
-       if (!WLAN_CAPABILITY_IS_MBSS(a->capability))
+       if (!WLAN_CAPABILITY_IS_STA_BSS(a->capability))
                return false;
 
        ie = cfg80211_find_ie(WLAN_EID_MESH_ID,
@@ -311,7 +333,7 @@ static int cmp_bss(struct cfg80211_bss *a,
        if (a->channel != b->channel)
                return b->channel->center_freq - a->channel->center_freq;
 
-       if (WLAN_CAPABILITY_IS_MBSS(a->capability | b->capability)) {
+       if (is_mesh_bss(a) && is_mesh_bss(b)) {
                r = cmp_ies(WLAN_EID_MESH_ID,
                            a->information_elements,
                            a->len_information_elements,
@@ -457,7 +479,6 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
                    struct cfg80211_internal_bss *res)
 {
        struct cfg80211_internal_bss *found = NULL;
-       const u8 *meshid, *meshcfg;
 
        /*
         * The reference to "res" is donated to this function.
@@ -470,22 +491,6 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 
        res->ts = jiffies;
 
-       if (WLAN_CAPABILITY_IS_MBSS(res->pub.capability)) {
-               /* must be mesh, verify */
-               meshid = cfg80211_find_ie(WLAN_EID_MESH_ID,
-                                         res->pub.information_elements,
-                                         res->pub.len_information_elements);
-               meshcfg = cfg80211_find_ie(WLAN_EID_MESH_CONFIG,
-                                          res->pub.information_elements,
-                                          res->pub.len_information_elements);
-               if (!meshid || !meshcfg ||
-                   meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) {
-                       /* bogus mesh */
-                       kref_put(&res->ref, bss_release);
-                       return NULL;
-               }
-       }
-
        spin_lock_bh(&dev->bss_lock);
 
        found = rb_find_bss(dev, res);