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authorStephane Fillod <fillods@users.sf.net>2012-04-20 11:39:23 +0200
committerDavid S. Miller <davem@davemloft.net>2012-04-24 06:29:18 +0200
commit9bbf56609d304e8aae2076610d938206453035de (patch)
tree7276726ba2799eaabe67fb2cb38290c4897d86f4 /drivers/net/usb
parentset fake_rtable's dst to NULL to avoid kernel Oops (diff)
downloadlinux-9bbf56609d304e8aae2076610d938206453035de.tar.xz
linux-9bbf56609d304e8aae2076610d938206453035de.zip
net: usb: smsc95xx: fix mtu
Make smsc95xx recalculate the hard_mtu after adjusting the hard_header_len. Without this, usbnet adjusts the MTU down to 1488 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/Beagle. Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
-rw-r--r--drivers/net/usb/smsc95xx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 5f19f84d3494..53a1ba5e0c2c 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1017,6 +1017,7 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
dev->net->flags |= IFF_MULTICAST;
dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
return 0;
}