linux-kernel - [PATCH] drm/bridge: adv7511: Convert to use maple tree register cache

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: <20230929-drm-adv7511-v1-1-b871b28ee594@kernel.org>
Date:   Fri, 29 Sep 2023 14:54:19 +0200
From:   Mark Brown <broonie@...nel.org>
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>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH] drm/bridge: adv7511: Convert to use maple tree register
 cache

The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 2611afd2c1c1..d518de88b5c3 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -121,7 +121,7 @@ static const struct regmap_config adv7511_regmap_config = {
 	.val_bits = 8,
 
 	.max_register = 0xff,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.reg_defaults_raw = adv7511_register_defaults,
 	.num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
 
@@ -1068,7 +1068,7 @@ static const struct regmap_config adv7511_cec_regmap_config = {
 	.val_bits = 8,
 
 	.max_register = 0xff,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.volatile_reg = adv7511_cec_register_volatile,
 };
 

---
base-commit: 6465e260f48790807eef06b583b38ca9789b6072
change-id: 20230929-drm-adv7511-2d592921f8a2

Best regards,
-- 
Mark Brown <broonie@...nel.org>