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Diffstat (limited to 'drivers/staging/octeon/ethernet-tx.h')
-rw-r--r--drivers/staging/octeon/ethernet-tx.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/staging/octeon/ethernet-tx.h b/drivers/staging/octeon/ethernet-tx.h
index 5106236fe981..c0bebf750bc0 100644
--- a/drivers/staging/octeon/ethernet-tx.h
+++ b/drivers/staging/octeon/ethernet-tx.h
@@ -30,3 +30,28 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev);
int cvm_oct_transmit_qos(struct net_device *dev, void *work_queue_entry,
int do_free, int qos);
void cvm_oct_tx_shutdown(struct net_device *dev);
+
+/**
+ * Free dead transmit skbs.
+ *
+ * @priv: The driver data
+ * @skb_to_free: The number of SKBs to free (free none if negative).
+ * @qos: The queue to free from.
+ * @take_lock: If true, acquire the skb list lock.
+ */
+static inline void cvm_oct_free_tx_skbs(struct octeon_ethernet *priv,
+ int skb_to_free,
+ int qos, int take_lock)
+{
+ /* Free skbuffs not in use by the hardware. */
+ if (skb_to_free > 0) {
+ if (take_lock)
+ spin_lock(&priv->tx_free_list[qos].lock);
+ while (skb_to_free > 0) {
+ dev_kfree_skb(__skb_dequeue(&priv->tx_free_list[qos]));
+ skb_to_free--;
+ }
+ if (take_lock)
+ spin_unlock(&priv->tx_free_list[qos].lock);
+ }
+}

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