Merge branch 'linus' into tracing/core

Merge reason: update to upstream tracing facilities

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index da3e9ff339f5..d6681edb7014 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -162,6 +162,14 @@ static int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
 	/* Get size of the initial fragment */
 	len = skb_headlen(skb);
 
+	/* Pad if necessary */
+	if (EFX_WORKAROUND_15592(efx) && skb->len <= 32) {
+		EFX_BUG_ON_PARANOID(skb->data_len);
+		len = 32 + 1;
+		if (skb_pad(skb, len - skb->len))
+			return NETDEV_TX_OK;
+	}
+
 	fill_level = tx_queue->insert_count - tx_queue->old_read_count;
 	q_space = efx->type->txd_ring_mask - 1 - fill_level;
 
@@ -376,6 +384,9 @@ int efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct efx_tx_queue *tx_queue;
 
+	if (unlikely(efx->port_inhibited))
+		return NETDEV_TX_BUSY;
+
 	if (likely(skb->ip_summed == CHECKSUM_PARTIAL))
 		tx_queue = &efx->tx_queue[EFX_TX_QUEUE_OFFLOAD_CSUM];
 	else
@@ -397,7 +408,7 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 	 * separates the update of read_count from the test of
 	 * stopped. */
 	smp_mb();
-	if (unlikely(tx_queue->stopped)) {
+	if (unlikely(tx_queue->stopped) && likely(efx->port_enabled)) {
 		fill_level = tx_queue->insert_count - tx_queue->read_count;
 		if (fill_level < EFX_NETDEV_TX_THRESHOLD(tx_queue)) {
 			EFX_BUG_ON_PARANOID(!efx_dev_registered(efx));