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Date:   Wed, 30 May 2018 02:03:21 +0200
From:   "Luis R. Rodriguez" <mcgrof@kernel.org>
To:     Andy Shevchenko <andy.shevchenko@gmail.com>
Cc:     "Luis R. Rodriguez" <mcgrof@kernel.org>,
        Kent Overstreet <kent.overstreet@gmail.com>,
        Jessica Yu <jeyu@kernel.org>, Tso Ted <tytso@mit.edu>,
        Coly Li <colyli@suse.de>,
        Ciaran Farrell <ciaran.farrell@suse.com>,
        One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
        linux-bcache@vger.kernel.org,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Kate Stewart <kstewart@linuxfoundation.org>,
        Jonas Oberg <jonas@fsfe.org>
Subject: Re: PostgreSQL licensed code on Linux
Message-ID: <20180530000321.GP4511@wotan.suse.de>
References: <CAB=NE6XGCM0nZqvq74JPnSKgvL37Nkwvr3H3cAQ=ooTYJt7Rdg@mail.gmail.com>
 <20180529192643.GA3487@kmo-pixel>
 <20180529205143.GB7381@thunk.org>
 <20180529210025.GB3487@kmo-pixel>
 <20180529225928.GI31712@garbanzo.do-not-panic.com>
 <CAB=NE6XBPjcGCbK2L_ELjMVVSO34BeJQv8cSiC6M_r7MDVFLvQ@mail.gmail.com>
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On Wed, May 30, 2018 at 02:22:14AM +0300, Andy Shevchenko wrote:
> On Wed, May 30, 2018 at 2:12 AM, Luis R. Rodriguez <mcgrof@kernel.org> wrote:
> > It would seem I did follow up with a v3 patch and Rusty noted that although
> > I may be right, its hard to care [0]. But of relevance here is again if one
> > of the MODULE_LICENSE() dual tags should be used or the GPL tag. I'll
> > continue to side recommending with the MODULE_LICENSE("GPL") tag even on
> > files with permissive licenses, and even if it we haven't clarified this in
> > documentation as I think scaling these tags further is just silly.
> >
> > [0] http://lkml.kernel.org/r/87bom0hf0f.fsf@rustcorp.com.au
> 
> https://www.spinics.net/lists/linux-bcache/msg06048.html
> 
> https://www.spinics.net/lists/linux-bcache/msg06058.html

For those that are not developers:

The proposed changes referenced in the above URLs take old portions PostgreSQL
C code which were previously on a larger C file and move them to a new module
which has the PostgreSQL header. Modules need to have a MODULE_LICENSE() tag,
and if one is not used the kernel assumes the module is proprietary. The above
code lacks a MODULE_LICENSE() tag as such currently the driver is proprietary.
Clearly that needs to be fixed before upstreaming.

  Luis