ath9k_htc: Add dropped SKB count to debugfs
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index fe994e2..3091bb3 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -129,6 +129,7 @@
TX_STAT_INC(skb_completed);
} else {
dev_kfree_skb_any(skb);
+ TX_STAT_INC(skb_dropped);
}
}
@@ -149,11 +150,15 @@
}
}
-static inline void ath9k_skb_queue_purge(struct sk_buff_head *list)
+static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev,
+ struct sk_buff_head *list)
{
struct sk_buff *skb;
- while ((skb = __skb_dequeue(list)) != NULL)
+
+ while ((skb = __skb_dequeue(list)) != NULL) {
dev_kfree_skb_any(skb);
+ TX_STAT_INC(skb_dropped);
+ }
}
/* TX lock has to be taken */
@@ -214,7 +219,7 @@
ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC);
if (ret) {
tx_buf->len = tx_buf->offset = 0;
- ath9k_skb_queue_purge(&tx_buf->skb_queue);
+ ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue);
__skb_queue_head_init(&tx_buf->skb_queue);
list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
hif_dev->tx.tx_buf_cnt++;
@@ -281,7 +286,7 @@
unsigned long flags;
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
- ath9k_skb_queue_purge(&hif_dev->tx.tx_skb_queue);
+ ath9k_skb_queue_purge(hif_dev, &hif_dev->tx.tx_skb_queue);
hif_dev->tx.tx_skb_cnt = 0;
hif_dev->tx.flags |= HIF_USB_TX_STOP;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);