linux-kernel - [PATCH RFC 2/2] regmap: move to using BITS

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Message-ID: <1383220441-18519-1-git-send-email-srinivas.kandagatla@st.com>
Date:	Thu, 31 Oct 2013 11:54:01 +0000
From:	<srinivas.kandagatla@...com>
To:	<linux-kernel@...r.kernel.org>
Cc:	Mark Brown <broonie@...nel.org>, <srinivas.kandagatla@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH RFC 2/2] regmap: move to using BITS_MASK macro

From: Srinivas Kandagatla <srinivas.kandagatla@...com>

This patch uses the new BITS_MASK macro for generating mask for multiple
bits.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...com>
---
 drivers/base/regmap/regmap.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 7d689a1..7433939 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -816,11 +816,10 @@ EXPORT_SYMBOL_GPL(devm_regmap_init);
 static void regmap_field_init(struct regmap_field *rm_field,
 	struct regmap *regmap, struct reg_field reg_field)
 {
-	int field_bits = reg_field.msb - reg_field.lsb + 1;
 	rm_field->regmap = regmap;
 	rm_field->reg = reg_field.reg;
 	rm_field->shift = reg_field.lsb;
-	rm_field->mask = ((BIT(field_bits) - 1) << reg_field.lsb);
+	rm_field->mask = BITS_MASK(reg_field.lsb, reg_field.msb);
 }
 
 /**
-- 
1.7.6.5

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