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authorStephane Fillod <fillods@users.sf.net>2012-04-15 11:38:29 +0000
committerDavid S. Miller <davem@davemloft.net>2012-04-16 23:54:22 -0400
commita99ff7d0123b19ecad3b589480b6542716ab6b52 (patch)
treea40ea4c7b22d42aca799e460555349507970a693 /drivers/net/usb/smsc75xx.c
parent4362aaf6054b9760652c7047cdf6fa852acb6cf7 (diff)
net: usb: smsc75xx: fix mtu
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>
Diffstat (limited to 'drivers/net/usb/smsc75xx.c')
-rw-r--r--drivers/net/usb/smsc75xx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 187d01ccb973..a2349483cd2a 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -1051,6 +1051,7 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf)
dev->net->ethtool_ops = &smsc75xx_ethtool_ops;
dev->net->flags |= IFF_MULTICAST;
dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
return 0;
}