[PATCH 4.4 46/67] dwc_eth_qos: Fix dma address for multi-fragment skbs
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2016-01-27 19:05:39
Also in:
lkml
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
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 <redacted>
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;