Re: [PATCH v8 03/12] selftests: add tests_sysfs module

[Greg KH]

On Mon, Sep 27, 2021 at 09:37:56AM -0700, Luis Chamberlain wrote:
> --- /dev/null
> +++ b/lib/test_sysfs.c
> @@ -0,0 +1,921 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
> +/*
> + * sysfs test driver
> + *
> + * Copyright (C) 2021 Luis Chamberlain <mcgrof@xxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the Free
> + * Software Foundation; either version 2 of the License, or at your option any
> + * later version; or, when distributed separately from the Linux kernel or
> + * when incorporated into other software packages, subject to the following
> + * license:
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of copyleft-next (version 0.3.1 or later) as published
> + * at http://copyleft-next.org/.

Independant of the fact that I don't like sysfs code attempting to be
accessed in the kernel with licenses other than GPLv2, you do not need
the license "boilerplate" text at all in files.  That's what the SPDX
line is for.

thanks,

greg k-h