linux-kernel - Re: [PATCH char-misc-next 1/1] misc: mic: remove the MIC drivers

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Message-ID: <f64a1f67781441c8ed48b991afbf8dd2f9030289.camel@intel.com>
Date:   Wed, 28 Oct 2020 17:22:01 +0000
From:   "Dutt, Sudeep" <sudeep.dutt@...el.com>
To:     "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     "corbet@....net" <corbet@....net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "sherry.sun@....com" <sherry.sun@....com>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "Dutt, Sudeep" <sudeep.dutt@...el.com>,
        "Rao, Nikhil" <nikhil.rao@...el.com>,
        "Dixit, Ashutosh" <ashutosh.dixit@...el.com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH char-misc-next 1/1] misc: mic: remove the MIC drivers

On Wed, 2020-10-28 at 06:54 +0100, Greg Kroah-Hartman wrote:
> On Tue, Oct 27, 2020 at 08:14:15PM -0700, Sudeep Dutt wrote:
> > This patch removes the MIC drivers from the kernel tree
> > since the corresponding devices have been discontinued.
> 
> Does "discontinued" mean "never shipped a device so no one has access
> to
> this hardware anymore", or does it mean "we stopped shipping devices
> and
> there are customers with this?"

Hi Greg,

We are not aware of any customers of the upstreamed MIC drivers. The 
drivers were upstreamed primarily to lay a foundation for enabling the
next generation MIC devices which did not ship.

> > Removing the dma and char-misc changes in one patch and
> > merging via the char-misc tree is best to avoid any
> > potential build breakage.
> > 
> > Cc: Nikhil Rao <nikhil.rao@...el.com>
> > Reviewed-by: Ashutosh Dixit <ashutosh.dixit@...el.com>
> > Signed-off-by: Sudeep Dutt <sudeep.dutt@...el.com>
> 
> I like deleting code, can this go into 5.10-final?

Yes, we would prefer this goes into v5.10. I am hoping you can carry
the Ack from Vinod and the Reviewed-by from Sherry but I can resend the
patch with those updates in the commit message if required. I did
verify that this patch passes allmodconfig and allyesconfig builds with
your latest char-misc-next tree.

Many thanks for your help with this subsystem Greg.

Best Regards,
Sudeep Dutt