This is a note to let you know that I've just added the patch titled
net: usb: smsc75xx: fix mtu
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-usb-smsc75xx-fix-mtu.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 1d894b34c77c7b452e77a41d6c4ba1ec66a1b7ef Mon Sep 17 00:00:00 2001
From: Stephane Fillod <[email protected]>
Date: Sun, 15 Apr 2012 11:38:29 +0000
Subject: net: usb: smsc75xx: fix mtu
From: Stephane Fillod <[email protected]>
[ 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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/usb/smsc75xx.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -1049,6 +1049,7 @@ static int smsc75xx_bind(struct usbnet *
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;
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/net-usb-smsc75xx-fix-mtu.patch
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