qcacld-3.0: Avoid race when uplayer triggers reassoc

When supplicant tries to reassoc AP, it will set PSK
before issue connection. In driver, it invokes function
__wlan_hdd_cfg80211_keymgmt_set_key and then
__wlan_hdd_cfg80211_connect.

__wlan_hdd_cfg80211_keymgmt_set_key puts
eWNI_SME_ROAM_SCAN_OFFLOAD_REQ to PE queue, then puts
WMA_ROAM_SCAN_OFFLOAD_REQ to WMA queue.

__wlan_hdd_cfg80211_connect puts SIR_HAL_ROAM_INVOKE to
WMA queue directly.

If the command SIR_HAL_ROAM_INVOKE is issued to fw before
WMA_ROAM_SCAN_OFFLOAD_REQ, then roaming scan is canceled
because scan mode is set.

To avoid this race, send SIR_HAL_ROAM_INVOKE to PE queue,
and then to WMA queue as well.

Change-Id: I08624efc466085e49fa4201deb221276ec5c260f
Rs-Fixed: 2344710

core/mac/inc/wni_api.h

@@ -214,6 +214,7 @@ enum eWniMsgTypes {
 	eWNI_SME_SEND_DISASSOC_FRAME,
 	eWNI_SME_UPDATE_ACCESS_POLICY_VENDOR_IE,
 	eWNI_SME_DEFAULT_SCAN_IE,
+	eWNI_SME_ROAM_INVOKE,
 	eWNI_SME_ROAM_SCAN_OFFLOAD_REQ,
 	eWNI_SME_LOST_LINK_INFO_IND,
 	eWNI_SME_DEL_ALL_TDLS_PEERS,

core/mac/src/pe/lim/lim_process_message_queue.c

@@ -1648,6 +1648,8 @@ static void lim_process_messages(tpAniSirGlobal mac_ctx,
 #endif  /* FEATURE_WLAN_ESE */
 	case eWNI_SME_REGISTER_MGMT_FRAME_CB:
 	case eWNI_SME_EXT_CHANGE_CHANNEL:
+	case eWNI_SME_ROAM_INVOKE:
+		/* fall through */
 	case eWNI_SME_ROAM_SCAN_OFFLOAD_REQ:
 	case eWNI_SME_SET_ADDBA_ACCEPT:
 	case eWNI_SME_UPDATE_EDCA_PROFILE:

core/mac/src/pe/lim/lim_process_sme_req_messages.c

@@ -3938,6 +3938,39 @@ static void __lim_process_roam_scan_offload_req(tpAniSirGlobal mac_ctx,
 	}
 }
 
+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
+/**
+ * lim_process_roam_invoke() - process the Roam Invoke req
+ * @mac_ctx: Pointer to Global MAC structure
+ * @msg_buf: Pointer to the SME message buffer
+ *
+ * This function is called by limProcessMessageQueue(). This function sends the
+ * ROAM_INVOKE command to WMA.
+ *
+ * Return: None
+ */
+static void lim_process_roam_invoke(tpAniSirGlobal mac_ctx,
+				    uint32_t *msg_buf)
+{
+	struct scheduler_msg msg = {0};
+	QDF_STATUS status;
+
+	msg.type = SIR_HAL_ROAM_INVOKE;
+	msg.bodyptr = msg_buf;
+	msg.reserved = 0;
+
+	status = wma_post_ctrl_msg(mac_ctx, &msg);
+	if (QDF_STATUS_SUCCESS != status)
+		pe_err("Not able to post SIR_HAL_ROAM_INVOKE to WMA");
+}
+#else
+static void lim_process_roam_invoke(tpAniSirGlobal mac_ctx,
+				    uint32_t *msg_buf)
+{
+	qdf_mem_free(msg_buf);
+}
+#endif
+
 /*
  * lim_handle_update_ssid_hidden() - Processes SSID hidden update
  * @mac_ctx: Pointer to global mac context
@@ -4967,6 +5000,10 @@ bool lim_process_sme_req_messages(tpAniSirGlobal pMac,
 		__lim_process_roam_scan_offload_req(pMac, pMsgBuf);
 		bufConsumed = false;
 		break;
+	case eWNI_SME_ROAM_INVOKE:
+		lim_process_roam_invoke(pMac, pMsgBuf);
+		bufConsumed = false;
+		break;
 	case eWNI_SME_CHNG_MCC_BEACON_INTERVAL:
 		/* Update the beaconInterval */
 		__lim_process_sme_change_bi(pMac, pMsgBuf);

core/sme/src/common/sme_api.c

@@ -14980,14 +14980,14 @@ QDF_STATUS sme_fast_reassoc(tHalHandle hal, struct csr_roam_profile *profile,
 		}
 	}
 
-	msg.type = SIR_HAL_ROAM_INVOKE;
+	msg.type = eWNI_SME_ROAM_INVOKE;
 	msg.reserved = 0;
 	msg.bodyptr = fastreassoc;
 	status = scheduler_post_message(QDF_MODULE_ID_SME,
-					QDF_MODULE_ID_WMA,
+					QDF_MODULE_ID_PE,
-					QDF_MODULE_ID_WMA, &msg);
+					QDF_MODULE_ID_PE, &msg);
 	if (QDF_STATUS_SUCCESS != status) {
-		sme_err("Not able to post ROAM_INVOKE_CMD message to WMA");
+		sme_err("Not able to post ROAM_INVOKE_CMD message to PE");
 		qdf_mem_free(fastreassoc);
 	}