Merge remote-tracking branch 'input-current/for-linus'

[karo-tx-linux.git] / drivers / net / ethernet / amd / xgbe / xgbe-drv.c

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 14bad8c44c870b5ad2dd51d19886a7b85f95c691..53ce1222b11d13fc8649bc00bb3b083d0ee23525 100644 (file)
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -365,7 +365,7 @@ static irqreturn_t xgbe_isr(int irq, void *data)
 
                /* Restart the device on a Fatal Bus Error */
                if (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, FBE))
-                       queue_work(pdata->dev_workqueue, &pdata->restart_work);
+                       schedule_work(&pdata->restart_work);
 
                /* Clear all interrupt signals */
                XGMAC_DMA_IOWRITE(channel, DMA_CH_SR, dma_ch_isr);
@@ -1537,7 +1537,7 @@ static void xgbe_tx_timeout(struct net_device *netdev)
        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 
        netdev_warn(netdev, "tx timeout, device restarting\n");
-       queue_work(pdata->dev_workqueue, &pdata->restart_work);
+       schedule_work(&pdata->restart_work);
 }
 
 static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev,
@@ -1811,6 +1811,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
        struct netdev_queue *txq;
        int processed = 0;
        unsigned int tx_packets = 0, tx_bytes = 0;
+       unsigned int cur;
 
        DBGPR("-->xgbe_tx_poll\n");
 
@@ -1818,10 +1819,15 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
        if (!ring)
                return 0;
 
+       cur = ring->cur;
+
+       /* Be sure we get ring->cur before accessing descriptor data */
+       smp_rmb();
+
        txq = netdev_get_tx_queue(netdev, channel->queue_index);
 
        while ((processed < XGBE_TX_DESC_MAX_PROC) &&
-              (ring->dirty != ring->cur)) {
+              (ring->dirty != cur)) {
                rdata = XGBE_GET_DESC_DATA(ring, ring->dirty);
                rdesc = rdata->rdesc;