lkml.org 
[lkml]   [2012]   [Apr]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[ 06/78] net: usb: cdc_eem: fix mtu
    3.3-stable review patch.  If anyone has any objections, please let me know.

    ------------------


    From: Rabin Vincent <rabin@rab.in>

    [ Upstream commit 78fb72f7936c01d5b426c03a691eca082b03f2b9 ]

    Make CDC EEM recalculate the hard_mtu after adjusting the
    hard_header_len.

    Without this, usbnet adjusts the MTU down to 1494 bytes, and the host is
    unable to receive standard 1500-byte frames from the device.

    Tested with the Linux USB Ethernet gadget.

    Cc: Oliver Neukum <oliver@neukum.name>
    Signed-off-by: Rabin Vincent <rabin@rab.in>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/net/usb/cdc_eem.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/net/usb/cdc_eem.c
    +++ b/drivers/net/usb/cdc_eem.c
    @@ -93,6 +93,7 @@ static int eem_bind(struct usbnet *dev,
    /* no jumbogram (16K) support for now */

    dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN;
    + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;

    return 0;
    }



    \
     
     \ /
      Last update: 2012-04-12 01:17    [W:0.025 / U:91.292 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site