linux-kernel - [PATCH 0/7] drm/panel: make prepare / enable / disable / unprepare return void

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250401-panel-return-void-v1-0-93e1be33dc8d@oss.qualcomm.com>
Date: Tue, 01 Apr 2025 08:11:32 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Jessica Zhang <quic_jesszhan@...cinc.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/7] drm/panel: make prepare / enable / disable / unprepare
 return void

While it makes sense for panel callbacks to be able to return an error,
the state-management functions from drm_panel API are usually called
from atomic callbacks, which can not fails and must return void. Make
drm_panel_prepare(), drm_panel_enable(), drm_panel_disable() and
drm_panel_unprepare() follow the same calling convention and return
void.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
Dmitry Baryshkov (7):
      drm/bridge: analogix_dp: drop extra calls to analogix_dp_prepare_panel()
      drm/bridge: analogix_dp: drop unused argument to analogix_dp_prepare_panel()
      drm/bridge: analogic_dp: drop panel_is_modeset
      drm/bridge: analogic_dp: drop panel_lock
      drm/bridge: analogix_dp: inline analogix_dp_prepare_panel()
      drm/bridge: analogix_dp: ignore return values of drm_panel_* calls
      drm/panel: make prepare/enable and disable/unprepare calls return void

 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 107 ++-------------------
 drivers/gpu/drm/bridge/analogix/analogix_dp_core.h |   3 -
 drivers/gpu/drm/drm_panel.c                        |  54 ++++-------
 drivers/gpu/drm/panel/panel-newvision-nv3051d.c    |   9 +-
 include/drm/drm_panel.h                            |   8 +-
 5 files changed, 33 insertions(+), 148 deletions(-)
---
base-commit: bfb20a655848a9088e3e9ae24b1dcce1bbf016c2
change-id: 20250401-panel-return-void-d461c71ebd35

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>