netfilter: arp_tables: restore a SPDX identifier

This was accidentally removed in an unrelated commit.

Fixes: c2f12630c6 ("netfilter: switch nf_setsockopt to sockptr_t")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig 2020-07-28 18:38:33 +02:00 committed by David S. Miller
parent 21db923eae
commit a3ad434ad7

View File

@ -1,4 +1,4 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Packet matching code for ARP packets.
*