qcacld-3.0: cleanup tx-queue during SSR

qcacld-2.0 to qcacld-3.0 propagation

During SSR, Host is sending packets to firmware before WMI_READY_EVENT.
Fix is to avoid sending tx when logp_in_progress & clean ll-queue
packets in shutdown.

Change-Id: Ib6b9f4d51f2aa7f85d384831818b45763c702c88
CRs-Fixed: 834887

core/hdd/src/wlan_hdd_tx_rx.c

@@ -338,6 +338,14 @@ int hdd_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 #endif
 
 	++pAdapter->hdd_stats.hddTxRxStats.txXmitCalled;
+	if (cds_is_logp_in_progress()) {
+		CDF_TRACE(CDF_MODULE_ID_HDD_DATA, CDF_TRACE_LEVEL_WARN,
+			"LOPG in progress, dropping the packet");
+		++pAdapter->stats.tx_dropped;
+		++pAdapter->hdd_stats.hddTxRxStats.txXmitDropped;
+		kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
 
 	if (WLAN_HDD_IBSS == pAdapter->device_mode) {
 		struct cdf_mac_addr *pDestMacAddress =

core/wma/src/wma_main.c

@@ -2769,7 +2769,7 @@ CDF_STATUS wma_stop(void *cds_ctx, uint8_t reason)
 {
 	tp_wma_handle wma_handle;
 	CDF_STATUS cdf_status = CDF_STATUS_SUCCESS;
-
+	int i;
 	wma_handle = cds_get_context(CDF_MODULE_ID_WMA);
 
 	WMA_LOGD("%s: Enter", __func__);
@@ -2816,6 +2816,13 @@ CDF_STATUS wma_stop(void *cds_ctx, uint8_t reason)
 #endif /* HIF_USB */
 	}
 
+	/* clean up ll-queue for all vdev */
+	for (i = 0; i < wma_handle->max_bssid; i++) {
+		if (wma_handle->interfaces[i].handle &&
+				wma_handle->interfaces[i].vdev_up) {
+			ol_txrx_vdev_flush(wma_handle->interfaces[i].handle);
+		}
+	}
 	cdf_status = wma_tx_detach(wma_handle);
 	if (cdf_status != CDF_STATUS_SUCCESS) {
 		WMA_LOGP("%s: Failed to deregister tx management", __func__);