[PATCH] softmac: Fix inability to associate with WEP networks

Commit 4cf92a3c was submitted as a fix for bug #8686 at bugzilla.kernel.org
(http://bugzilla.kernel.org/show_bug.cgi?id=8686). Unfortunately, the fix led to
a new bug, reported by Yoshifuji Hideaki, that prevented association for WEP
encrypted networks that use ifconfig to control the device. This patch effectively
reverts the earlier commit and does a proper fix for bug #8686.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 20 insertions, 34 deletions

diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c
index d054e9224b3e..442b9875f3fb 100644
--- a/net/ieee80211/softmac/ieee80211softmac_wx.c
+++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -70,44 +70,30 @@ ieee80211softmac_wx_set_essid(struct net_device *net_dev,
                               char *extra)
 {
         struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
-        struct ieee80211softmac_network *n;
         struct ieee80211softmac_auth_queue_item *authptr;
         int length = 0;
 
 check_assoc_again:
         mutex_lock(&sm->associnfo.mutex);
-        /* Check if we're already associating to this or another network
-         * If it's another network, cancel and start over with our new network
-         * If it's our network, ignore the change, we're already doing it!
-         */
         if((sm->associnfo.associating || sm->associnfo.associated) &&
            (data->essid.flags && data->essid.length)) {
-                /* Get the associating network */
-                n = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid);
-                if(n && n->essid.len == data->essid.length &&
-                   !memcmp(n->essid.data, extra, n->essid.len)) {
-                        dprintk(KERN_INFO PFX "Already associating or associated to "MAC_FMT"\n",
-                                MAC_ARG(sm->associnfo.bssid));
-                        goto out;
-                } else {
-                        dprintk(KERN_INFO PFX "Canceling existing associate request!\n");
-                        /* Cancel assoc work */
-                        cancel_delayed_work(&sm->associnfo.work);
-                        /* We don't have to do this, but it's a little cleaner */
-                        list_for_each_entry(authptr, &sm->auth_queue, list)
-                                cancel_delayed_work(&authptr->work);
-                        sm->associnfo.bssvalid = 0;
-                        sm->associnfo.bssfixed = 0;
-                        sm->associnfo.associating = 0;
-                        sm->associnfo.associated = 0;
-                        /* We must unlock to avoid deadlocks with the assoc workqueue
-                         * on the associnfo.mutex */
-                        mutex_unlock(&sm->associnfo.mutex);
-                        flush_scheduled_work();
-                        /* Avoid race! Check assoc status again. Maybe someone started an
-                         * association while we flushed. */
-                        goto check_assoc_again;
-                }
+                dprintk(KERN_INFO PFX "Canceling existing associate request!\n");
+                /* Cancel assoc work */
+                cancel_delayed_work(&sm->associnfo.work);
+                /* We don't have to do this, but it's a little cleaner */
+                list_for_each_entry(authptr, &sm->auth_queue, list)
+                        cancel_delayed_work(&authptr->work);
+                sm->associnfo.bssvalid = 0;
+                sm->associnfo.bssfixed = 0;
+                sm->associnfo.associating = 0;
+                sm->associnfo.associated = 0;
+                /* We must unlock to avoid deadlocks with the assoc workqueue
+                 * on the associnfo.mutex */
+                mutex_unlock(&sm->associnfo.mutex);
+                flush_scheduled_work();
+                /* Avoid race! Check assoc status again. Maybe someone started an
+                 * association while we flushed. */
+                goto check_assoc_again;
         }
 
         sm->associnfo.static_essid = 0;
@@ -153,13 +139,13 @@ ieee80211softmac_wx_get_essid(struct net_device *net_dev,
                 data->essid.length = sm->associnfo.req_essid.len;
                 data->essid.flags = 1;  /* active */
                 memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len);
-        }
-
+                dprintk(KERN_INFO PFX "Getting essid from req_essid\n");
+        } else if (sm->associnfo.associated || sm->associnfo.associating) {
         /* If we're associating/associated, return that */
-        if (sm->associnfo.associated || sm->associnfo.associating) {
                 data->essid.length = sm->associnfo.associate_essid.len;
                 data->essid.flags = 1;  /* active */
                 memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
+                dprintk(KERN_INFO PFX "Getting essid from associate_essid\n");
         }
         mutex_unlock(&sm->associnfo.mutex);