linux-kernel - Re: [PATCH 12/15] hyperv: move VMBus connection ids to uapi

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Message-ID: <20161221100247.69a4049b@xeon-e3>
Date:   Wed, 21 Dec 2016 10:02:47 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Roman Kagan <rkagan@...tuozzo.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>, kvm@...r.kernel.org,
        "Denis V . Lunev" <den@...nvz.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, devel@...uxdriverproject.org,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 12/15] hyperv: move VMBus connection ids to uapi

On Wed, 21 Dec 2016 09:58:36 -0800
Christoph Hellwig <hch@...radead.org> wrote:

> On Wed, Dec 21, 2016 at 09:50:49AM -0800, Stephen Hemminger wrote:
> > Lastly, there is licensing issues on headers. It would be good to have any
> > userspace ABI headers licensed with a more liberal license so that BSD and DPDK drivers
> > could use them directly. Right now each one reinvents.  
> 
> Microsoft could easily solves this problem by offering a suitably
> liberally licensed header documenting the full HyperV guest protocol
> that Linux and other projects could use.

The issue is if same header file mixes kernel and userspace API stuff.

Once the files are arranged right, I will submit trivial change to comments
to indicate the liberal licensing of userspace API headers.