linux-kernel - Re: [RFC PATCH v3 1/3] drivers/accel: define kconfig and register a new major

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Date:   Mon, 7 Nov 2022 23:05:34 +0200
From:   Oded Gabbay <ogabbay@...nel.org>
To:     Jeffrey Hugo <quic_jhugo@...cinc.com>
Cc:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Jason Gunthorpe <jgg@...dia.com>,
        John Hubbard <jhubbard@...dia.com>,
        Alex Deucher <alexander.deucher@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>,
        Jiho Chu <jiho.chu@...sung.com>,
        Daniel Stone <daniel@...ishbar.org>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        Christoph Hellwig <hch@...radead.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Jacek Lawrynowicz <jacek.lawrynowicz@...ux.intel.com>,
        Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>,
        Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [RFC PATCH v3 1/3] drivers/accel: define kconfig and register a
 new major

On Mon, Nov 7, 2022 at 6:12 PM Jeffrey Hugo <quic_jhugo@...cinc.com> wrote:
>
> On 11/6/2022 2:02 PM, Oded Gabbay wrote:
> > +int __init accel_core_init(void)
> > +{
> > +     int ret;
> > +
> > +     ret = accel_sysfs_init();
> > +     if (ret < 0) {
> > +             DRM_ERROR("Cannot create ACCEL class: %d\n", ret);
> > +             goto error;
> > +     }
> > +
> > +     accel_debugfs_root = debugfs_create_dir("accel", NULL);
> > +
> > +     ret = register_chrdev(ACCEL_MAJOR, "accel", &accel_stub_fops);
> > +     if (ret < 0)
> > +             goto error;
>
> We are not jumping over anything here.  Seems like this whole if block
> could just be removed.
correct, will be fixed.
>
> > +
> > +error:
> > +     /* Any cleanup will be done in drm_core_exit() that will call
> > +      * to accel_core_exit()
> > +      */
>
> This doesn't look like the standard multi-line comment style.  Are we
> going to say that the accel subsystem follows net and differs from the
> kernel standard?
I'll change it to the kernel standard.
Thx,
Oded
>
> > +     return ret;
> > +}