[PATCH] Add the SPDX header to include/linux/hash.h

[Domenico Andreoli]

From: Domenico Andreoli <domenico.andreoli@xxxxxxxxx>

It is unlikely that who contributes to this file is unaware of the kernel
licensing but bringing the license statement into the file itself makes
it properly reusable in different contexts.

CC: Daniel Borkmann <dborkman@xxxxxxxxxx>
CC: Francesco Fusco <ffusco@xxxxxxxxxx>
CC: George Spelvin <linux@xxxxxxxxxxxxxxxxxxx>
CC: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>
CC: Ian Campbell <ian.campbell@xxxxxxxxxx>
CC: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
CC: Jens Axboe <axboe@xxxxxxxxx>
CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
CC: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
CC: Matthew Wilcox <matthew@xxxxxx>
CC: Nadia Yvette Chambers <nyc@xxxxxxxxxxxxxx>
CC: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Signed-off-by: Domenico Andreoli <domenico.andreoli@xxxxxxxxx>

---
 include/linux/hash.h |    2 ++
 1 file changed, 2 insertions(+)

Index: b/include/linux/hash.h
===================================================================
--- a/include/linux/hash.h
+++ b/include/linux/hash.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
 #ifndef _LINUX_HASH_H
 #define _LINUX_HASH_H
 /* Fast hashing routine for ints,  longs and pointers.