wlcore: ignore dummy packet events in PLT mode

Sometimes the firmware sends a dummy packet event while we are in PLT
mode.  This doesn't make sense, it's a firmware bug.  Fix this by
ignoring dummy packet events when we're PLT mode.

Reported-by: Yegor Yefremov <yegorslists@googlemail.com>
Reported-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c
index 1f9a36031b06..16d10281798d 100644
--- a/drivers/net/wireless/ti/wlcore/event.c
+++ b/drivers/net/wireless/ti/wlcore/event.c
@@ -158,6 +158,11 @@ EXPORT_SYMBOL_GPL(wlcore_event_channel_switch);
 
 void wlcore_event_dummy_packet(struct wl1271 *wl)
 {
+        if (wl->plt) {
+                wl1271_info("Got DUMMY_PACKET event in PLT mode.  FW bug, ignoring.");
+                return;
+        }
+
         wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
         wl1271_tx_dummy_packet(wl);
 }