diff options
| author | Stephane Fillod <fillods@users.sf.net> | 2012-04-15 07:38:29 -0400 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2012-05-01 06:00:22 -0400 |
| commit | 33600719436d0e1d6be0e9345954e88fb93ff848 (patch) | |
| tree | 6723d37fb19295376ea439bf4615870c860ca280 /drivers/net | |
| parent | 57c27880795e76ad614ab49244a9ec9801023e08 (diff) | |
net: usb: smsc75xx: fix mtu
BugLink: http://bugs.launchpad.net/bugs/990544
[ Upstream commit a99ff7d0123b19ecad3b589480b6542716ab6b52 ]
Make smsc75xx recalculate the hard_mtu after adjusting the
hard_header_len.
Without this, usbnet adjusts the MTU down to 1492 bytes, and the host is
unable to receive standard 1500-byte frames from the device.
Inspired by same fix on cdc_eem 78fb72f7936c01d5b426c03a691eca082b03f2b9.
Tested on ARM/Omap3 with EVB-LAN7500-LC.
Signed-off-by: Stephane Fillod <fillods@users.sf.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/usb/smsc75xx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 15b3d6888ae..de0de3ee639 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c | |||
| @@ -1049,6 +1049,7 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf) | |||
| 1049 | dev->net->ethtool_ops = &smsc75xx_ethtool_ops; | 1049 | dev->net->ethtool_ops = &smsc75xx_ethtool_ops; |
| 1050 | dev->net->flags |= IFF_MULTICAST; | 1050 | dev->net->flags |= IFF_MULTICAST; |
| 1051 | dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD; | 1051 | dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD; |
| 1052 | dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; | ||
| 1052 | return 0; | 1053 | return 0; |
| 1053 | } | 1054 | } |
| 1054 | 1055 | ||