From: https://bugzilla.kernel.org/show_bug.cgi?id=69661

--- a/drivers/net/wireless/mwifiex/main.c	
+++ a/drivers/net/wireless/mwifiex/main.c	
@@ -247,8 +247,7 @@ process_start:
 		 * For USB interface, there are no interrupts. We already have
 		 * HIGH_RX_PENDING check in usb.c
 		 */
-		if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING &&
-		    adapter->iface_type != MWIFIEX_USB) {
+		if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING) {
 			adapter->delay_main_work = true;
 			mwifiex_queue_rx_work(adapter);
 			break;
--