qcacld-3.0: mem alloc for variables instead of using stack

Currently, function variables in csr_send_join_req_msg and
csr_roam_connect uses stack and are consuming much of the stack
eventually reaching the stack end quickly.

To avoid stack consumption issue, mem alloc function variables
instead of using stack.

Change-Id: If6fecb7f7ca9a31fdda2ea12d40a110e6c238508
CRs-Fixed: 2045315

core/sme/src/csr/csr_api_roam.c

@@ -7887,7 +7887,7 @@ QDF_STATUS csr_roam_connect(tpAniSirGlobal pMac, uint32_t sessionId,
 	uint32_t roamId = 0;
 	bool fCallCallback = false;
 	tCsrRoamSession *pSession = CSR_GET_SESSION(pMac, sessionId);
-	tSirBssDescription first_ap_profile;
+	tSirBssDescription *first_ap_profile;
 
 	if (NULL == pSession) {
 		sme_err("session does not exist for given sessionId: %d",
@@ -7899,6 +7899,13 @@ QDF_STATUS csr_roam_connect(tpAniSirGlobal pMac, uint32_t sessionId,
 		sme_err("No profile specified");
 		return QDF_STATUS_E_FAILURE;
 	}
+
+	first_ap_profile = qdf_mem_malloc(sizeof(*first_ap_profile));
+	if (NULL == first_ap_profile) {
+		sme_err("malloc fails for first_ap_profile");
+		return QDF_STATUS_E_NOMEM;
+	}
+
 	/* Initialize the count before proceeding with the Join requests */
 	pSession->join_bssid_count = 0;
 	sme_debug(
@@ -7989,9 +7996,9 @@ QDF_STATUS csr_roam_connect(tpAniSirGlobal pMac, uint32_t sessionId,
 		if ((pScanFilter->csrPersona == QDF_STA_MODE) ||
 			 (pScanFilter->csrPersona == QDF_P2P_CLIENT_MODE)) {
 			csr_get_bssdescr_from_scan_handle(hBSSList,
-					&first_ap_profile);
+					first_ap_profile);
 			status = policy_mgr_handle_conc_multiport(pMac->psoc,
-					sessionId, first_ap_profile.channelId);
+					sessionId, first_ap_profile->channelId);
 			if ((QDF_IS_STATUS_SUCCESS(status)) &&
 				(!csr_wait_for_connection_update(pMac, true))) {
 					sme_debug("conn update error");
@@ -8058,6 +8065,8 @@ end:
 		csr_roam_call_callback(pMac, sessionId, NULL, roamId,
 				eCSR_ROAM_FAILED, eCSR_ROAM_RESULT_FAILURE);
 	}
+	qdf_mem_free(first_ap_profile);
+
 	return status;
 }
 
@@ -13958,8 +13967,7 @@ QDF_STATUS csr_send_join_req_msg(tpAniSirGlobal pMac, uint32_t sessionId,
 	tSirMacRateSet ExRateSet;
 	tCsrRoamSession *pSession = CSR_GET_SESSION(pMac, sessionId);
 	uint32_t dwTmp, ucDot11Mode = 0;
-	/* RSN MAX is bigger than WPA MAX */
-	uint8_t wpaRsnIE[DOT11F_IE_RSN_MAX_LEN];
+	uint8_t *wpaRsnIE = NULL;
 	uint8_t txBFCsnValue = 0;
 	tSirSmeJoinReq *csr_join_req;
 	tSirMacCapabilityInfo *pAP_capabilityInfo;
@@ -14027,6 +14035,14 @@ QDF_STATUS csr_send_join_req_msg(tpAniSirGlobal pMac, uint32_t sessionId,
 			status = QDF_STATUS_SUCCESS;
 		if (!QDF_IS_STATUS_SUCCESS(status))
 			break;
+
+		wpaRsnIE = qdf_mem_malloc(DOT11F_IE_RSN_MAX_LEN);
+		if (NULL == wpaRsnIE)
+			status = QDF_STATUS_E_NOMEM;
+
+		if (!QDF_IS_STATUS_SUCCESS(status))
+			break;
+
 		csr_join_req->messageType = messageType;
 		csr_join_req->length = msgLen;
 		csr_join_req->sessionId = (uint8_t) sessionId;
@@ -14693,6 +14709,9 @@ QDF_STATUS csr_send_join_req_msg(tpAniSirGlobal pMac, uint32_t sessionId,
 	if (!QDF_IS_STATUS_SUCCESS(status) && (NULL != csr_join_req))
 		qdf_mem_free(csr_join_req);
 
+	if (wpaRsnIE)
+		qdf_mem_free(wpaRsnIE);
+
 	return status;
 }