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

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Date:   Mon, 2 Jan 2017 09:19:57 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Roman Kagan <rkagan@...tuozzo.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Christoph Hellwig <hch@...radead.org>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "Denis V . Lunev" <den@...nvz.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 12/15] hyperv: move VMBus connection ids to uapi



On 28/12/2016 18:09, Roman Kagan wrote:
> Am I correct assuming that QEMU is currently the only user of
> arch/x86/include/uapi/asm/hyperv.h?
> 
> Then I think we're fine withdrawing it from uapi as a whole and letting
> QEMU pull it in through its header-harvesting scripts (as does now
> anyway).  This would lift all licensing and longterm API stability
> expectations.

Actually, QEMU's header-harvesting scripts use uapi/ headers
exclusively, since they are built on "make headers_install".

The extra cleanups that QEMU does on top are to allow compilation of the
headers on non-Linux machines.  They don't really do much more than
changing Linux (linux/types.h) integer types to the C99 (stdint.h)
equivalents.

Paolo