linux-kernel - Re: [PATCH v2 19/24] drivers: hv: dxgkrnl: Simple IOCTLs LX_DXESCAPE, LX_DXMARKDEVICEASERROR, LX_DXQUERYSTATISTICS, LX

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Date:   Sat, 5 Feb 2022 09:30:13 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Iouri Tarassov <iourit@...ux.microsoft.com>
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        wei.liu@...nel.org, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org, spronovo@...rosoft.com
Subject: Re: [PATCH v2 19/24] drivers: hv: dxgkrnl: Simple IOCTLs
 LX_DXESCAPE, LX_DXMARKDEVICEASERROR, LX_DXQUERYSTATISTICS,
 LX_DXQUERYCLOCKCALIBRATION

On Fri, Feb 04, 2022 at 06:34:17PM -0800, Iouri Tarassov wrote:

The subject line does not make sense, it is not a sentence.

>     These IOCTLs are logically simple:

What is "these"?

>     - input data is read
>     - a message is sent to the host
>     - the result is returned to the caller
> 
>     - LX_DXESCAPE (D3DKMTEscape)
>       This IOCTL is used to send/receive private data between user mode
>       driver and kernel mode driver. This is an extension of the WDDM APIs.
> 
>     - LX_DXMARKDEVICEASERROR (D3DKMTMarkDeviceAsError)
>       The IOCTL is used to bring the dxgdevice object to the error state.
>       Subsequent calls to use the device object will fail.
> 
>     - LX_DXQUERYSTATISTICS (D3DKMTQuerystatistics)
>       The IOCTL is used to query various statistics from the compute device
>       on the host.
> 
>     - LX_DXQUERYCLOCKCALIBRATION
>       The IOCTL queries clock from the compute device.

Why is this not broken up into one-patch-per-ioctl like I asked?

{sigh}

I'm not reviewing this anymore, please rework it.

thanks,

greg k-h