linux-kernel - Re: [PATCH] treewide: fix typos of SPDX-License-Identifier

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Message-ID: <20190601162945.GA6395@kroah.com>
Date:   Sat, 1 Jun 2019 18:29:45 +0200
From:   Greg KH <greg@...ah.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-spdx@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, Kees Cook <keescook@...omium.org>,
        Joe Perches <joe@...ches.com>,
        Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
        Mark Brown <broonie@...nel.org>, linux-gpio@...r.kernel.org,
        Alexandre Torgue <alexandre.torgue@...com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-stm32@...md-mailman.stormreply.com,
        linux-renesas-soc@...r.kernel.org, Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] treewide: fix typos of SPDX-License-Identifier

On Sat, Jun 01, 2019 at 12:22:42PM +0900, Masahiro Yamada wrote:
> Prior to the adoption of SPDX, it was difficult for tools to determine
> the correct license due to incomplete or badly formatted license text.
> The SPDX solves this issue, assuming people can correctly spell
> "SPDX-License-Identifier" although this assumption is broken in some
> places.
> 
> Since scripts/spdxcheck.py parses only lines that exactly matches to
> the correct tag, it cannot (should not) detect this kind of error.
> 
> If the correct tag is missing, scripts/checkpatch.pl warns like this:
> 
>  WARNING: Missing or malformed SPDX-License-Identifier tag in line *
> 
> So, people should notice it before the patch submission, but in reality
> broken tags sometimes slip in. The checkpatch warning is not useful for
> checking the committed files globally since large number of files still
> have no SPDX tag.
> 
> Also, I am not sure about the legal effect when the SPDX tag is broken.
> 
> Anyway, these typos are absolutely worth fixing. It is pretty easy to
> find suspicious lines by grep.
> 
>   $ git grep --not -e SPDX-License-Identifier --and -e SPDX- -- \
>     :^LICENSES :^scripts/spdxcheck.py :^*/license-rules.rst
>   arch/arm/kernel/bugs.c:// SPDX-Identifier: GPL-2.0
>   drivers/phy/st/phy-stm32-usbphyc.c:// SPDX-Licence-Identifier: GPL-2.0
>   drivers/pinctrl/sh-pfc/pfc-r8a77980.c:// SPDX-Lincense-Identifier: GPL 2.0
>   lib/test_stackinit.c:// SPDX-Licenses: GPLv2
>   sound/soc/codecs/max9759.c:// SPDX-Licence-Identifier: GPL-2.0
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>

Very nice catch, thanks!  I'll go queue this up now.

greg k-h