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: <20230912-mfd-wcd934x-maple-v2-1-292a154113e3@kernel.org>
Date:   Tue, 12 Sep 2023 12:36:46 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Lee Jones <lee@...nel.org>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH v2] mfd: wcd934x: Update 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. In
v6.5 it has also acquired the ability to generate multi-register writes in
sync operations, bringing performance up to parity with the rbtree cache
there.

Update the wcd934x to use the more modern data structure.

Signed-off-by: Mark Brown <broonie@...nel.org>
---


Signed-off-by: Mark
---
Changes in v2:
- Rebase onto v6.6-rc1.
- Link to v1: https://lore.kernel.org/r/20230712-mfd-wcd934x-maple-v1-1-0d7aba4b0077@kernel.org
---
 drivers/mfd/wcd934x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/wcd934x.c b/drivers/mfd/wcd934x.c
index 6b942d5270c1..7b9873b72c37 100644
--- a/drivers/mfd/wcd934x.c
+++ b/drivers/mfd/wcd934x.c
@@ -112,7 +112,7 @@ static const struct regmap_range_cfg wcd934x_ranges[] = {
 static struct regmap_config wcd934x_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = 0xffff,
 	.can_multi_write = true,
 	.ranges = wcd934x_ranges,

---
base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
change-id: 20230623-mfd-wcd934x-maple-852535e3b2c6

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

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ