linux-kernel - Re: [PATCH v4 15/15] Drivers: hv: Add modules to expose /dev/mshv to VMMs running on Hyper-V

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Date:   Sat, 30 Sep 2023 21:13:07 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Wei Liu <wei.liu@...nel.org>,
        Nuno Das Neves <nunodasneves@...ux.microsoft.com>,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arch@...r.kernel.org, patches@...ts.linux.dev,
        mikelley@...rosoft.com, kys@...rosoft.com, haiyangz@...rosoft.com,
        decui@...rosoft.com, apais@...ux.microsoft.com,
        Tianyu.Lan@...rosoft.com, ssengar@...ux.microsoft.com,
        mukeshrathor@...rosoft.com, stanislav.kinsburskiy@...il.com,
        jinankjain@...ux.microsoft.com, vkuznets@...hat.com,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com, will@...nel.org,
        catalin.marinas@....com
Subject: Re: [PATCH v4 15/15] Drivers: hv: Add modules to expose /dev/mshv to
 VMMs running on Hyper-V

On Sat, Sep 30, 2023 at 08:31:13PM +0200, Greg KH wrote:
> On Sat, Sep 30, 2023 at 06:11:19PM +0000, Wei Liu wrote:
> > On Sat, Sep 30, 2023 at 08:11:37AM +0200, Greg KH wrote:
> > > On Fri, Sep 29, 2023 at 11:01:41AM -0700, Nuno Das Neves wrote:
> > > > --- /dev/null
> > > > +++ b/include/uapi/linux/mshv.h
> > > > @@ -0,0 +1,306 @@
> > > > +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> > > 
> > > Much better.
> > > 
> > > > +#ifndef _UAPI_LINUX_MSHV_H
> > > > +#define _UAPI_LINUX_MSHV_H
> > > > +
> > > > +/*
> > > > + * Userspace interface for /dev/mshv
> > > > + * Microsoft Hypervisor root partition APIs
> > > > + * NOTE: This API is not yet stable!
> > > 
> > > Sorry, that will not work for obvious reasons.
> > 
> > This can be removed. For practical purposes, the API has been stable for
> > the past three years.
> 
> Then who wrote this text?

I don't think this matter, does it? This patch series had been rewritten
so many times internally to conform to upstream standard it is very
difficult to track down who wrote this and when.

If you have concrete concerns about removing the text, please let me
know.

Thanks,
Wei.

> 
> confused,
> 
> greg k-h