linux-kernel - Re: [PATCH v1 01/12] gna: add driver module

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Date:   Fri, 26 Feb 2021 14:03:55 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Jonathan Corbet <corbet@....net>,
        Derek Kiernan <derek.kiernan@...inx.com>,
        Dragan Cvetic <dragan.cvetic@...inx.com>,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        Tomasz Jankowski <tomasz1.jankowski@...el.com>,
        Savo Novakovic <savox.novakovic@...el.com>,
        Jianxun Zhang <jianxun.zhang@...ux.intel.com>
Subject: Re: [PATCH v1 01/12] gna: add driver module

On Fri, Feb 26, 2021 at 01:59:14PM +0100, Maciej Kwapulinski wrote:
> 
> Greg Kroah-Hartman <gregkh@...uxfoundation.org> writes:
> 
> > On Tue, Feb 16, 2021 at 05:05:14PM +0100, Maciej Kwapulinski wrote:
> ....
> >> --- /dev/null
> >> +++ b/drivers/misc/gna/gna_driver.h
> >> @@ -0,0 +1,41 @@
> >> +/* SPDX-License-Identifier: GPL-2.0-only */
> >> +/* Copyright(c) 2017-2021 Intel Corporation */
> >> +
> >> +#ifndef __GNA_DRIVER_H__
> >> +#define __GNA_DRIVER_H__
> >> +
> >> +#include <linux/kernel.h>
> >> +#include <linux/mutex.h>
> >> +#include <linux/types.h>
> >> +
> >> +#define GNA_DRV_NAME	"gna"
> >
> > Way too generic, no one knows what "gna" is.
> >
> 
> "intel gna" is much more verbose in search engines.
> As we do not (plan to) have more "gna" drivers, is the following ok?:
> 
> intel-gna
> 
> the change would imply the following:
> 
> prompt$ lspci -s 00:00.3 -vvvv
> 00:00.3 System peripheral: Intel Corporation Device 3190 (rev 03)
> 	Subsystem: Intel Corporation Device 2072
>   ....
> 	Kernel driver in use: intel-gna
> 	Kernel modules: gna
> 
> is it ok?

Why not intel-gna as the kernel module as well?

> also, how about the interface to library (it's part of one of next patches)?:
> prompt$ file /dev/gna0
> /dev/gna0: character special (235/0)
> 
> can "gna" stay intact here?

Again, I have no idea what "gna" is, so you might want to pick something
more descriptive?

> I'm pointing this out, because gna exists on the market for a while and
> changing the above may have some impact we'd like to avoid.

If it exists but Linux does not support it, how would anyone know about
it?  :)

Please use real terms where possible.

thanks,

greg k-h