linux-kernel - Re: [PATCH 1/2 v2] usbnet: fix bad header length bug

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Message-ID: <1392014458.21271.6.camel@linux-fkkt.site>
Date:	Mon, 10 Feb 2014 07:40:58 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	Emil Goode <emilgoode@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Ming Lei <ming.lei@...onical.com>,
	Mark Brown <broonie@...aro.org>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Glen Turner <gdt@....id.au>, netdev@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2 v2] usbnet: fix bad header length bug

On Mon, 2014-02-10 at 00:06 +0100, Emil Goode wrote:
> The AX88772B occasionally send rx packets that cross urb boundaries
> and the remaining partial packet is sent with no hardware header.
> When the buffer with a partial packet is of less number of octets
> than the value of hard_header_len the buffer is discarded by the
> usbnet module. This is causing dropped packages and error messages
> in dmesg.
> 
> This can be reproduced by using ping with a packet size
> between 1965-1976.

Well, then how about simply removing the check?
It seems to have outlived its usefulness.

	Regards
		Oliver


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