From 66baf407571662f7e2a22dd0764cbe279559446c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 21 Feb 2013 18:01:54 +0000 Subject: [PATCH] regmap: rbtree: Don't bother checking for noop updates If we're updating a value in place it's more work to read the value and compare the value with what we're about to set than it is to just write the value into the cache; there are no further operations after writing in the code even though there's an early return here. Signed-off-by: Mark Brown --- drivers/base/regmap/regcache-rbtree.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index e6732cf7c06e..3f21c6ab296f 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -302,7 +302,6 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, struct regcache_rbtree_ctx *rbtree_ctx; struct regcache_rbtree_node *rbnode, *rbnode_tmp; struct rb_node *node; - unsigned int val; unsigned int reg_tmp; unsigned int pos; int i; @@ -315,10 +314,6 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg, rbnode = regcache_rbtree_lookup(map, reg); if (rbnode) { reg_tmp = (reg - rbnode->base_reg) / map->reg_stride; - val = regcache_rbtree_get_register(rbnode, reg_tmp, - map->cache_word_size); - if (val == value) - return 0; regcache_rbtree_set_register(rbnode, reg_tmp, value, map->cache_word_size); } else {