commit 64081b7636935337e55585d762d8ccbf1d6f3b97
author Hanumantha Reddy Pothula <c_hpothu@qti.qualcomm.com> Fri Sep 11 15:47:32 2015 +0530
committer Satyanarayana Dash <sadash@codeaurora.org> Wed Sep 30 15:11:36 2015 +0530
tree 69b9fd3954eef2b0c8a93ee449e0f209efc85a08
parent bb0dffc7babab1947fe99efac445b7aa4abb421e

wlan: Attempt to connect with supplicant hinted BSSID

qcacld-2.0 to prima propagation

Current driver implementation ignores the bssid_hint
provided by the supplicant and always connects to the
AP with the best RSSI. Changes are made to honor the
bssid_hint provided by the supplicant and attempt
associating to that hinted bssid first.

Change-Id: I94c5a3dbbd831f6c82080dcc91008f9e3e6829f7
CRs-Fixed: 832022

CORE/HDD/src/wlan_hdd_cfg80211.c

diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index de675e1..fab6be0 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -11759,7 +11759,8 @@
  * This function is used to start the association process
  */
 int wlan_hdd_cfg80211_connect_start( hdd_adapter_t  *pAdapter,
-        const u8 *ssid, size_t ssid_len, const u8 *bssid, u8 operatingChannel)
+        const u8 *ssid, size_t ssid_len, const u8 *bssid,
+        const u8 *bssid_hint, u8 operatingChannel)
 {
     int status = 0;
     hdd_wext_state_t *pWextState;
@@ -11767,6 +11768,7 @@
     v_U32_t roamId;
     tCsrRoamProfile *pRoamProfile;
     eCsrAuthType RSNAuthType;
+    const u8 *pValidBssid = NULL;
 
     ENTER();
 
@@ -11816,14 +11818,22 @@
 
         if (bssid)
         {
+            pValidBssid = bssid;
+        }
+        else if (bssid_hint)
+        {
+            pValidBssid = bssid_hint;
+        }
+        if (pValidBssid)
+        {
             pRoamProfile->BSSIDs.numOfBSSIDs = 1;
-            vos_mem_copy((void *)(pRoamProfile->BSSIDs.bssid), bssid,
+            vos_mem_copy((void *)(pRoamProfile->BSSIDs.bssid), pValidBssid,
                     WNI_CFG_BSSID_LEN);
             /* Save BSSID in seperate variable as well, as RoamProfile
                BSSID is getting zeroed out in the association process. And in
                case of join failure we should send valid BSSID to supplicant
              */
-            vos_mem_copy((void *)(pWextState->req_bssId), bssid,
+            vos_mem_copy((void *)(pWextState->req_bssId), pValidBssid,
                     WNI_CFG_BSSID_LEN);
         }
         else
@@ -12865,12 +12875,14 @@
     {
         status = wlan_hdd_cfg80211_connect_start(pAdapter, req->ssid,
                                                   req->ssid_len, req->bssid,
+                                                  req->bssid_hint,
                                                   req->channel->hw_value);
     }
     else
     {
         status = wlan_hdd_cfg80211_connect_start(pAdapter, req->ssid,
-                                                  req->ssid_len, req->bssid, 0);
+                                                  req->ssid_len, req->bssid,
+                                                   req->bssid_hint, 0);
     }
 
     if (0 != status)
@@ -13395,7 +13407,7 @@
 
     /* Issue connect start */
     status = wlan_hdd_cfg80211_connect_start(pAdapter, params->ssid,
-            params->ssid_len, params->bssid,
+            params->ssid_len, params->bssid, NULL,
             pHddStaCtx->conn_info.operationChannel);
 
     if (0 > status)