Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a99ff7d0 authored by Stephane Fillod's avatar Stephane Fillod Committed by David S. Miller
Browse files

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 78fb72f7.

Tested on ARM/Omap3 with EVB-LAN7500-LC.

Signed-off-by: default avatarStephane Fillod <fillods@users.sf.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4362aaf6

drivers/net/usb/smsc75xx.c

+1 −0
Original line number Diff line number Diff line
@@ -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;

}