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Message-ID: <a4e37991ea7b47145ab033128c8dd49f73a983e6.1722949232.git.christophe.jaillet@wanadoo.fr>
Date: Tue, 6 Aug 2024 15:01:04 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Matti Vaittinen <mazziesaccount@...il.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>
Cc: linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] regulator: bd9576: Constify struct linear_range
'struct linear_range' are not modified in these drivers.
Constifying this structure moves some data to a read-only section, so
increase overall security.
This is also more consistent with the other struct linear_range declaration
above.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
20767 4544 0 25311 62df drivers/regulator/bd9576-regulator.o
After:
=====
text data bss dec hex filename
21023 4288 0 25311 62df drivers/regulator/bd9576-regulator.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Compile tested-only.
---
drivers/regulator/bd9576-regulator.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/regulator/bd9576-regulator.c b/drivers/regulator/bd9576-regulator.c
index d4ca7b3f4036..bf5f9c3f2c97 100644
--- a/drivers/regulator/bd9576-regulator.c
+++ b/drivers/regulator/bd9576-regulator.c
@@ -68,25 +68,25 @@ static const struct linear_range voutL1_xvd_ranges[] = {
REGULATOR_LINEAR_RANGE(220000, 0x6e, 0x7f, 0),
};
-static struct linear_range voutS1_ocw_ranges_internal[] = {
+static const struct linear_range voutS1_ocw_ranges_internal[] = {
REGULATOR_LINEAR_RANGE(200000, 0x01, 0x04, 0),
REGULATOR_LINEAR_RANGE(250000, 0x05, 0x18, 50000),
REGULATOR_LINEAR_RANGE(1200000, 0x19, 0x3f, 0),
};
-static struct linear_range voutS1_ocw_ranges[] = {
+static const struct linear_range voutS1_ocw_ranges[] = {
REGULATOR_LINEAR_RANGE(50000, 0x01, 0x04, 0),
REGULATOR_LINEAR_RANGE(60000, 0x05, 0x18, 10000),
REGULATOR_LINEAR_RANGE(250000, 0x19, 0x3f, 0),
};
-static struct linear_range voutS1_ocp_ranges_internal[] = {
+static const struct linear_range voutS1_ocp_ranges_internal[] = {
REGULATOR_LINEAR_RANGE(300000, 0x01, 0x06, 0),
REGULATOR_LINEAR_RANGE(350000, 0x7, 0x1b, 50000),
REGULATOR_LINEAR_RANGE(1350000, 0x1c, 0x3f, 0),
};
-static struct linear_range voutS1_ocp_ranges[] = {
+static const struct linear_range voutS1_ocp_ranges[] = {
REGULATOR_LINEAR_RANGE(70000, 0x01, 0x06, 0),
REGULATOR_LINEAR_RANGE(80000, 0x7, 0x1b, 10000),
REGULATOR_LINEAR_RANGE(280000, 0x1c, 0x3f, 0),
--
2.45.2
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