Merge tag 'v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into nand/next

Linux 4.20-rc2

1 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index dc1d9ed33b31..857f8abf7b91 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3190,6 +3190,26 @@ static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue,
 #endif
 }
 
+/* Variant of netdev_tx_sent_queue() for drivers that are aware
+ * that they should not test BQL status themselves.
+ * We do want to change __QUEUE_STATE_STACK_XOFF only for the last
+ * skb of a batch.
+ * Returns true if the doorbell must be used to kick the NIC.
+ */
+static inline bool __netdev_tx_sent_queue(struct netdev_queue *dev_queue,
+					  unsigned int bytes,
+					  bool xmit_more)
+{
+	if (xmit_more) {
+#ifdef CONFIG_BQL
+		dql_queued(&dev_queue->dql, bytes);
+#endif
+		return netif_tx_queue_stopped(dev_queue);
+	}
+	netdev_tx_sent_queue(dev_queue, bytes);
+	return true;
+}
+
 /**
  * 	netdev_sent_queue - report the number of bytes queued to hardware
  * 	@dev: network device