linux-kernel - [PATCH 2/3] regcache: flat: Un-inline index lookup from cache access

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Message-ID: <20180107232234.11064-2-afd@ti.com>
Date:   Sun, 7 Jan 2018 17:22:33 -0600
From:   "Andrew F. Davis" <afd@...com>
To:     Mark Brown <broonie@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, "Andrew F . Davis" <afd@...com>
Subject: [PATCH 2/3] regcache: flat: Un-inline index lookup from cache access

This makes the code slightly more readable and allows for cleaner
addition of functionality in later patches.

Signed-off-by: Andrew F. Davis <afd@...com>
---
 drivers/base/regmap/regcache-flat.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/base/regmap/regcache-flat.c b/drivers/base/regmap/regcache-flat.c
index 2ea5fc84a374..99a7792210b3 100644
--- a/drivers/base/regmap/regcache-flat.c
+++ b/drivers/base/regmap/regcache-flat.c
@@ -37,9 +37,12 @@ static int regcache_flat_init(struct regmap *map)
 
 	cache = map->cache;
 
-	for (i = 0; i < map->num_reg_defaults; i++)
-		cache[regcache_flat_get_index(map, map->reg_defaults[i].reg)] =
-				map->reg_defaults[i].def;
+	for (i = 0; i < map->num_reg_defaults; i++) {
+		unsigned int reg = map->reg_defaults[i].reg;
+		unsigned int index = regcache_flat_get_index(map, reg);
+
+		cache[index] = map->reg_defaults[i].def;
+	}
 
 	return 0;
 }
@@ -56,8 +59,9 @@ static int regcache_flat_read(struct regmap *map,
 			      unsigned int reg, unsigned int *value)
 {
 	unsigned int *cache = map->cache;
+	unsigned int index = regcache_flat_get_index(map, reg);
 
-	*value = cache[regcache_flat_get_index(map, reg)];
+	*value = cache[index];
 
 	return 0;
 }
@@ -66,8 +70,9 @@ static int regcache_flat_write(struct regmap *map, unsigned int reg,
 			       unsigned int value)
 {
 	unsigned int *cache = map->cache;
+	unsigned int index = regcache_flat_get_index(map, reg);
 
-	cache[regcache_flat_get_index(map, reg)] = value;
+	cache[index] = value;
 
 	return 0;
 }
-- 
2.15.1