[PATCH] mt76: verify evt type in usb mcu response

[Lorenzo Bianconi]

Verify if evt field is set to EVT_CMD_DONE in usb mcu
response messages

Signed-off-by: Lorenzo Bianconi <lorenzo.bianc...@redhat.com>
---
 drivers/net/wireless/mediatek/mt76/dma.h     | 10 ++++++++++
 drivers/net/wireless/mediatek/mt76/usb_mcu.c |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/dma.h 
b/drivers/net/wireless/mediatek/mt76/dma.h
index 27248e24a19b..828e52ae70e8 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.h
+++ b/drivers/net/wireless/mediatek/mt76/dma.h
@@ -75,6 +75,16 @@ enum dma_msg_port {
        DISCARD,
 };
 
+enum mt76_mcu_evt_type {
+       EVT_CMD_DONE,
+       EVT_CMD_ERROR,
+       EVT_CMD_RETRY,
+       EVT_EVENT_PWR_RSP,
+       EVT_EVENT_WOW_RSP,
+       EVT_EVENT_CARRIER_DETECT_RSP,
+       EVT_EVENT_DFS_DETECT_RSP,
+};
+
 int mt76_dma_attach(struct mt76_dev *dev);
 void mt76_dma_cleanup(struct mt76_dev *dev);
 
diff --git a/drivers/net/wireless/mediatek/mt76/usb_mcu.c 
b/drivers/net/wireless/mediatek/mt76/usb_mcu.c
index 070be803d463..ebf3e7ffb26b 100644
--- a/drivers/net/wireless/mediatek/mt76/usb_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/usb_mcu.c
@@ -73,7 +73,8 @@ static int mt76u_mcu_wait_resp(struct mt76_dev *dev, u8 seq)
                if (ret)
                        return ret;
 
-               if (seq == FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce))
+               if (seq == FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce) &&
+                   FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce) == EVT_CMD_DONE)
                        return 0;
 
                dev_err(dev->dev, "error: MCU resp evt:%lx seq:%hhx-%lx\n",
-- 
2.17.1