| From foo@baz Tue Jan 26 21:35:03 PST 2016 |
| From: Lars Persson <lars.persson@axis.com> |
| Date: Tue, 12 Jan 2016 15:28:13 +0100 |
| Subject: dwc_eth_qos: Fix dma address for multi-fragment skbs |
| |
| From: Lars Persson <lars.persson@axis.com> |
| |
| [ 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> |
| --- |
| drivers/net/ethernet/synopsys/dwc_eth_qos.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- 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_bu |
| 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; |
| |
