Re: [PATCH 4/5] drm/client: Remove unused drm_client_framebuffer_flush

[Jocelyn Falempe <jfalempe@redhat.com>]

On 23/10/2024 08:46, Thomas Zimmermann wrote:
> Hi
> 
> Am 23.10.24 um 01:29 schrieb linux@treblig.org:
>> From: "Dr. David Alan Gilbert" <linux@treblig.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.

https://patchwork.freedesktop.org/series/136789/

-- 

Jocelyn


> 
> Best regards
> Thomas
> 
>>
>> Signed-off-by: Dr. David Alan Gilbert <linux@treblig.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);
>