treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 127

Based on 1 normalized pattern(s):

this file is released under gplv2 or later

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1 file(s).

Signed-off-by: Thomas Gleixner <[e-mail]>
Reviewed-by: Richard Fontana <[e-mail]>
Reviewed-by: Kate Stewart <[e-mail]>
Reviewed-by: Allison Randal <[e-mail]>
Reviewed-by: Armijn Hemel <[e-mail]>
Cc: [e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/block/nbd.c

···
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Network block device - make block devices work over TCP
  *
···
  * 
  * Copyright 1997-2000, 2008 Pavel Machek <[e-mail]>
  * Parts copyright 2001 Steven Whitehouse <[e-mail]>
- *
- * This file is released under GPLv2 or later.
  *
  * (part of code stolen from loop.c)
  */