linux-kernel - [PATCH 0/3] Fixes and cleanup for DRM fbdev emulation and deferred I/O

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Date:   Fri, 20 Jan 2023 13:08:19 +0100
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Noralf Trønnes <noralf@...nnes.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maxime Ripard <mripard@...nel.org>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...il.com>, Helge Deller <deller@....de>,
        Jaya Kumar <jayalk@...works.biz>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org
Subject: [PATCH 0/3] Fixes and cleanup for DRM fbdev emulation and deferred I/O

Hello,

This patch series contains two fixes and a cleanup for things that I noticed
while debugging a regression in the fbdev emulation for a DRM driver.

The first two patches are trivial and shoulnd't be controversial, the third
patch is less trivial, but it has been already reviewed by Thomas and I did
test it to make sure that works as expected. With it, I got rid of the WARN
that happened due a mutex used after it has been destroyed.

Best regards,
Javier


Javier Martinez Canillas (3):
  fbdev: Remove unused struct fb_deferred_io .first_io field
  drm/fb-helper: Check fb_deferred_io_init() return value
  drm/fb-helper: Use a per-driver FB deferred I/O handler

 drivers/gpu/drm/drm_fbdev_generic.c | 15 ++++++++-------
 drivers/video/fbdev/core/fb_defio.c |  4 ----
 include/drm/drm_fb_helper.h         | 10 ++++++++++
 include/linux/fb.h                  |  1 -
 4 files changed, 18 insertions(+), 12 deletions(-)

-- 
2.39.0