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Message-Id: <1352335159-8049-3-git-send-email-iancoolidge@gmail.com>
Date: Wed, 7 Nov 2012 16:39:19 -0800
From: Ian Coolidge <iancoolidge@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Felipe Balbi <balbi@...com>, linux-usb@...r.kernel.org,
netdev@...r.kernel.org
Cc: Ian Coolidge <iancoolidge@...il.com>
Subject: [PATCH v2 2/2] net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
cdc_eem frames might need to contain 802.1Q VLAN Ethernet frames.
URB/skb sizing from usbnet will default to the hard_mtu,
so account for the VLAN header by expanding that via hard_header_len
Signed-off-by: Ian Coolidge <iancoolidge@...il.com>
---
drivers/net/usb/cdc_eem.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c
index c81e278..08d55b6 100644
--- a/drivers/net/usb/cdc_eem.c
+++ b/drivers/net/usb/cdc_eem.c
@@ -31,6 +31,7 @@
#include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h>
#include <linux/gfp.h>
+#include <linux/if_vlan.h>
/*
@@ -92,7 +93,7 @@ static int eem_bind(struct usbnet *dev, struct usb_interface *intf)
/* no jumbogram (16K) support for now */
- dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN;
+ dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN + VLAN_HLEN;
dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
return 0;
--
1.7.6.5
--
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