[3.11.y.z extended stable] Patch "dm9601: fix reception of full size ethernet frames on dm9620/dm9621a" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Thu Jan 9 12:03:52 UTC 2014
This is a note to let you know that I have just added a patch titled
dm9601: fix reception of full size ethernet frames on dm9620/dm9621a
to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From 0f85821bacb000cae511cf15032ac68a6e75fa8f Mon Sep 17 00:00:00 2001
From: Peter Korsgaard <peter at korsgaard.com>
Date: Mon, 16 Dec 2013 11:35:33 +0100
Subject: dm9601: fix reception of full size ethernet frames on dm9620/dm9621a
commit 407900cfb54bdb2cfa228010b6697305f66b2948 upstream.
dm9620/dm9621a require room for 4 byte padding even in dm9601 (3 byte
header) mode.
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
drivers/net/usb/dm9601.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index c6867f9..732a926 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -364,7 +364,12 @@ static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
dev->net->ethtool_ops = &dm9601_ethtool_ops;
dev->net->hard_header_len += DM_TX_OVERHEAD;
dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
- dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD;
+
+ /* dm9620/21a require room for 4 byte padding, even in dm9601
+ * mode, so we need +1 to be able to receive full size
+ * ethernet frames.
+ */
+ dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD + 1;
dev->mii.dev = dev->net;
dev->mii.mdio_read = dm9601_mdio_read;
--
1.8.3.2
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