linux-kernel - [PATCH] net: ieee802154: mrf24j40: convert to use maple tree register cache

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Date: Fri, 2 Feb 2024 01:46:59 -0500
From: Bo Liu <liubo03@...pur.com>
To: <alex.aring@...il.com>, <miquel.raynal@...tlin.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>
CC: <linux-wpan@...r.kernel.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Bo Liu <liubo03@...pur.com>
Subject: [PATCH] net: ieee802154: mrf24j40: 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: Bo Liu <liubo03@...pur.com>
---
 drivers/net/ieee802154/mrf24j40.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index ee4cfbf2c5cc..d3f42efc5d1a 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -388,7 +388,7 @@ static const struct regmap_config mrf24j40_short_regmap = {
 	.pad_bits = 1,
 	.write_flag_mask = MRF24J40_SHORT_WRITE,
 	.read_flag_mask = MRF24J40_SHORT_READ,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = MRF24J40_SHORT_NUMREGS,
 	.writeable_reg = mrf24j40_short_reg_writeable,
 	.readable_reg = mrf24j40_short_reg_readable,
@@ -495,7 +495,7 @@ static const struct regmap_config mrf24j40_long_regmap = {
 	.pad_bits = 5,
 	.write_flag_mask = MRF24J40_LONG_ACCESS,
 	.read_flag_mask = MRF24J40_LONG_ACCESS,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = MRF24J40_LONG_NUMREGS,
 	.writeable_reg = mrf24j40_long_reg_writeable,
 	.readable_reg = mrf24j40_long_reg_readable,
-- 
2.31.1