dwc_eth_qos: Fix dma address for multi-fragment skbs

[ Upstream commit d461873272169a3fc3a8d155d7b1c92e9d97b419 ]

The offset inside the fragment was not used for the dma address and
silent data corruption resulted because TSO makes the checksum match.

Fixes: 077742dac2c7 ("dwc_eth_qos: Add support for Synopsys DWC Ethernet QoS")
Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/synopsys/dwc_eth_qos.c b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
index 9066d7a8483c34ed5ee1ca2a697453eb55564584..f96c6b3606f2a3c702eafe28436ba398723383d1 100644 (file)
--- a/drivers/net/ethernet/synopsys/dwc_eth_qos.c
+++ b/drivers/net/ethernet/synopsys/dwc_eth_qos.c
@@ -2107,7 +2107,7 @@ static int dwceqos_tx_frags(struct sk_buff *skb, struct net_local *lp,
                        dd = &lp->tx_descs[lp->tx_next];
 
                        /* Set DMA Descriptor fields */
-                       dd->des0 = dma_handle;
+                       dd->des0 = dma_handle + consumed_size;
                        dd->des1 = 0;
                        dd->des2 = dma_size;