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[v4,net-next,2/8] sunvnet: remove unused variable in maybe_tx_wakeup

Message ID 1487012224-403399-3-git-send-email-shannon.nelson@oracle.com
State Not Applicable
Delegated to: David Miller
Headers show

Commit Message

Shannon Nelson Feb. 13, 2017, 6:56 p.m. UTC 
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>

The vio_dring_state *dr variable is unused in maybe_tx_wakeup().
As the comments indicate, we call maybe_tx_wakeup() whenever we
get a STOPPED LDC message on the port. If the queue is stopped,
we want to wake it up so that we will send another START message
at the next TX and trigger the consumer to drain the dring.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
---
 drivers/net/ethernet/sun/sunvnet_common.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
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Patch

diff --git a/drivers/net/ethernet/sun/sunvnet_common.c b/drivers/net/ethernet/sun/sunvnet_common.c
index c71f000..0f940f0 100644
--- a/drivers/net/ethernet/sun/sunvnet_common.c
+++ b/drivers/net/ethernet/sun/sunvnet_common.c
@@ -719,12 +719,8 @@  static void maybe_tx_wakeup(struct vnet_port *port)
 	txq = netdev_get_tx_queue(VNET_PORT_TO_NET_DEVICE(port),
 				  port->q_index);
 	__netif_tx_lock(txq, smp_processor_id());
-	if (likely(netif_tx_queue_stopped(txq))) {
-		struct vio_dring_state *dr;
-
-		dr = &port->vio.drings[VIO_DRIVER_TX_RING];
+	if (likely(netif_tx_queue_stopped(txq)))
 		netif_tx_wake_queue(txq);
-	}
 	__netif_tx_unlock(txq);
 }