linux-kernel - [PATCH v8 0/2] drm: show "all" bridges in debugfs

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: <20250226-drm-debugfs-show-all-bridges-v8-0-bb511cc49d83@bootlin.com>
Date: Wed, 26 Feb 2025 22:23:51 +0100
From: Luca Ceresoli <luca.ceresoli@...tlin.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>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Luca Ceresoli <luca.ceresoli@...tlin.com>
Subject: [PATCH v8 0/2] drm: show "all" bridges in debugfs

This series adds a /sys/kernel/debug/dri/bridges file showing all bridges
between drm_bridge_add() and drm_bridge_remove(), which might not be bound
to any encoder and thus not visible anywhere in debugfs.

It also cleans up the DRM bridge debugfs code by moving code to
drm_bridge.c.

Luca

Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
---
Changes in v8:
- moved more code to drm_bridge.c, which makes adding '#if CONFIG_DEBUG_FS' unnecessary
- a small fix to a harmless bug
- Link to v7: https://lore.kernel.org/r/20250225-drm-debugfs-show-all-bridges-v7-0-8826037ada37@bootlin.com

This series was initially part of v6 of this other series:
- Link to v6: https://lore.kernel.org/dri-devel/20250206-hotplug-drm-bridge-v6-0-9d6f2c9c3058@bootlin.com/

---
Luca Ceresoli (2):
      drm/bridge: move bridges_show logic from drm_debugfs.c
      drm/debugfs: add top-level 'bridges' file showing all added bridges

 drivers/gpu/drm/drm_bridge.c  | 70 +++++++++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_debugfs.c | 38 +----------------------
 drivers/gpu/drm/drm_drv.c     |  2 ++
 include/drm/drm_bridge.h      |  3 ++
 4 files changed, 76 insertions(+), 37 deletions(-)
---
base-commit: b439ab75b6382f5c34aec6e87435cf7e58e72a35
change-id: 20250225-drm-debugfs-show-all-bridges-642e870b71e7

Best regards,
-- 
Luca Ceresoli <luca.ceresoli@...tlin.com>