netfilter: arp_tables: restore a SPDX identifier

Christoph Hellwig · davem330 · commit a3ad434ad782 · 2020-07-28T13:43:40.000-07:00
This was accidentally removed in an unrelated commit. Fixes: c2f1263 ("netfilter: switch nf_setsockopt to sockptr_t") Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
@@ -1,4 +1,4 @@
-
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Packet matching code for ARP packets.
  *

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-`
	`1`	`+// SPDX-License-Identifier: GPL-2.0-only`
`2`	`2`	`/*`
`3`	`3`	`* Packet matching code for ARP packets.`
`4`	`4`	`*`