diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/rswitch.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/rswitch.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c index 54aa56c84133..2f483531d95c 100644 --- a/drivers/net/ethernet/renesas/rswitch.c +++ b/drivers/net/ethernet/renesas/rswitch.c @@ -1632,8 +1632,9 @@ static netdev_tx_t rswitch_start_xmit(struct sk_buff *skb, struct net_device *nd if (dma_mapping_error(ndev->dev.parent, dma_addr_orig)) goto err_kfree; - gq->skbs[gq->cur] = skb; - gq->unmap_addrs[gq->cur] = dma_addr_orig; + /* Stored the skb at the last descriptor to avoid skb free before hardware completes send */ + gq->skbs[(gq->cur + nr_desc - 1) % gq->ring_size] = skb; + gq->unmap_addrs[(gq->cur + nr_desc - 1) % gq->ring_size] = dma_addr_orig; dma_wmb(); |