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    Subject[PATCH 4.4 46/67] dwc_eth_qos: Fix dma address for multi-fragment skbs
    Date
    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 <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;


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