linux-kernel - Re: [PATCH 4/5] drm/client: Remove unused drm_client_framebuffer

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Message-ID: <ZxjYBbusIbQU6WDv@gallifrey>
Date: Wed, 23 Oct 2024 11:03:33 +0000
From: "Dr. David Alan Gilbert" <linux@...blig.org>
To: Jocelyn Falempe <jfalempe@...hat.com>
Cc: Thomas Zimmermann <tzimmermann@...e.de>,
	maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
	airlied@...il.com, simona@...ll.ch, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] drm/client: Remove unused
 drm_client_framebuffer_flush

* Jocelyn Falempe (jfalempe@...hat.com) wrote:
> On 23/10/2024 08:46, Thomas Zimmermann wrote:
> > Hi
> > 
> > Am 23.10.24 um 01:29 schrieb linux@...blig.org:
> > > From: "Dr. David Alan Gilbert" <linux@...blig.org>
> > > 
> > > drm_client_framebuffer_flush() was explicitly added in 2020
> > > by
> > > commit c9c03e3cf072 ("drm/client: Add drm_client_framebuffer_flush()")
> > > but has never been used.
> > > 
> > > Remove it.
> > 
> > I had a patchset to use this helper for fbdev emulation. It just needs
> > preparation in a number of drivers.
> 
> It is used by drm_log, which is under review.
> Please don't remove it.

OK, no problem.

Reviews on the rest of the series would be great.

Dave

> https://patchwork.freedesktop.org/series/136789/
> 
> -- 
> 
> Jocelyn
> 
> 
> > 
> > Best regards
> > Thomas
> > 
> > > 
> > > Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
> > > ---
> > >   drivers/gpu/drm/drm_client.c | 33 ---------------------------------
> > >   include/drm/drm_client.h     |  1 -
> > >   2 files changed, 34 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
> > > index bfedcbf516db..5d10ad3c2ca5 100644
> > > --- a/drivers/gpu/drm/drm_client.c
> > > +++ b/drivers/gpu/drm/drm_client.c
> > > @@ -552,39 +552,6 @@ void drm_client_framebuffer_delete(struct
> > > drm_client_buffer *buffer)
> > >   }
> > >   EXPORT_SYMBOL(drm_client_framebuffer_delete);
> > > -/**
> > > - * drm_client_framebuffer_flush - Manually flush client framebuffer
> > > - * @buffer: DRM client buffer (can be NULL)
> > > - * @rect: Damage rectangle (if NULL flushes all)
> > > - *
> > > - * This calls &drm_framebuffer_funcs->dirty (if present) to flush
> > > buffer changes
> > > - * for drivers that need it.
> > > - *
> > > - * Returns:
> > > - * Zero on success or negative error code on failure.
> > > - */
> > > -int drm_client_framebuffer_flush(struct drm_client_buffer *buffer,
> > > struct drm_rect *rect)
> > > -{
> > > -    if (!buffer || !buffer->fb || !buffer->fb->funcs->dirty)
> > > -        return 0;
> > > -
> > > -    if (rect) {
> > > -        struct drm_clip_rect clip = {
> > > -            .x1 = rect->x1,
> > > -            .y1 = rect->y1,
> > > -            .x2 = rect->x2,
> > > -            .y2 = rect->y2,
> > > -        };
> > > -
> > > -        return buffer->fb->funcs->dirty(buffer->fb, buffer->client-
> > > >file,
> > > -                        0, 0, &clip, 1);
> > > -    }
> > > -
> > > -    return buffer->fb->funcs->dirty(buffer->fb, buffer->client->file,
> > > -                    0, 0, NULL, 0);
> > > -}
> > > -EXPORT_SYMBOL(drm_client_framebuffer_flush);
> > > -
> > >   #ifdef CONFIG_DEBUG_FS
> > >   static int drm_client_debugfs_internal_clients(struct seq_file *m,
> > > void *data)
> > >   {
> > > diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
> > > index bc0e66f9c425..560aae47e06d 100644
> > > --- a/include/drm/drm_client.h
> > > +++ b/include/drm/drm_client.h
> > > @@ -165,7 +165,6 @@ struct drm_client_buffer {
> > >   struct drm_client_buffer *
> > >   drm_client_framebuffer_create(struct drm_client_dev *client, u32
> > > width, u32 height, u32 format);
> > >   void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
> > > -int drm_client_framebuffer_flush(struct drm_client_buffer *buffer,
> > > struct drm_rect *rect);
> > >   int drm_client_buffer_vmap_local(struct drm_client_buffer *buffer,
> > >                    struct iosys_map *map_copy);
> > >   void drm_client_buffer_vunmap_local(struct drm_client_buffer *buffer);
> > 
> 
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
\        dave @ treblig.org |                               | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/