From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: Sending short raw packets using sendmsg() broke
Date: Thu, 25 Feb 2016 15:26:28 -0500 (EST)
Message-ID: <20160225.152628.1230785666614750970.davem@davemloft.net>
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From: Heikki Hannikainen <hessu@hes.iki.fi>
Date: Thu, 25 Feb 2016 21:36:07 +0200 (EET)

> Commit 9c7077622dd9174 added a check, ll_header_truncated(), which
> requires that a packet transmitted using sendmsg() with PF_PACKET,
> SOCK_RAW must be longer than dev->hard_header_len.

Fixed by:

commit 880621c2605b82eb5af91a2c94223df6f5a3fb64
Author: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date:   Sun Nov 22 17:46:09 2015 +0100

    packet: Allow packets with only a header (but no payload)