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From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
To: Mark Brown <broonie@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-kernel@vger.kernel.org,
	Rikard Falkeborn <rikard.falkeborn@gmail.com>
Subject: [PATCH] regmap: Constify static regmap_bus structs
Date: Wed, 30 Mar 2022 23:41:10 +0200	[thread overview]
Message-ID: <20220330214110.36337-1-rikard.falkeborn@gmail.com> (raw)

The only usage of these is to pass their address to __regmap_init() or
__devm_regmap_init(), both which takes pointers to const struct
regmap_bus. Make them const to allow the compiler to put them in
read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/base/regmap/regmap-i3c.c     | 2 +-
 drivers/base/regmap/regmap-sccb.c    | 2 +-
 drivers/base/regmap/regmap-sdw-mbq.c | 2 +-
 drivers/base/regmap/regmap-sdw.c     | 2 +-
 drivers/base/regmap/regmap-slimbus.c | 2 +-
 drivers/base/regmap/regmap-w1.c      | 6 +++---
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/base/regmap/regmap-i3c.c b/drivers/base/regmap/regmap-i3c.c
index 1578fb506683..0328b0b34284 100644
--- a/drivers/base/regmap/regmap-i3c.c
+++ b/drivers/base/regmap/regmap-i3c.c
@@ -40,7 +40,7 @@ static int regmap_i3c_read(void *context,
 	return i3c_device_do_priv_xfers(i3c, xfers, 2);
 }
 
-static struct regmap_bus regmap_i3c = {
+static const struct regmap_bus regmap_i3c = {
 	.write = regmap_i3c_write,
 	.read = regmap_i3c_read,
 };
diff --git a/drivers/base/regmap/regmap-sccb.c b/drivers/base/regmap/regmap-sccb.c
index 597042e2d009..986af26d88c2 100644
--- a/drivers/base/regmap/regmap-sccb.c
+++ b/drivers/base/regmap/regmap-sccb.c
@@ -80,7 +80,7 @@ static int regmap_sccb_write(void *context, unsigned int reg, unsigned int val)
 	return i2c_smbus_write_byte_data(i2c, reg, val);
 }
 
-static struct regmap_bus regmap_sccb_bus = {
+static const struct regmap_bus regmap_sccb_bus = {
 	.reg_write = regmap_sccb_write,
 	.reg_read = regmap_sccb_read,
 };
diff --git a/drivers/base/regmap/regmap-sdw-mbq.c b/drivers/base/regmap/regmap-sdw-mbq.c
index fe3ac26b66ad..388c3a087bd9 100644
--- a/drivers/base/regmap/regmap-sdw-mbq.c
+++ b/drivers/base/regmap/regmap-sdw-mbq.c
@@ -42,7 +42,7 @@ static int regmap_sdw_mbq_read(void *context, unsigned int reg, unsigned int *va
 	return 0;
 }
 
-static struct regmap_bus regmap_sdw_mbq = {
+static const struct regmap_bus regmap_sdw_mbq = {
 	.reg_read = regmap_sdw_mbq_read,
 	.reg_write = regmap_sdw_mbq_write,
 	.reg_format_endian_default = REGMAP_ENDIAN_LITTLE,
diff --git a/drivers/base/regmap/regmap-sdw.c b/drivers/base/regmap/regmap-sdw.c
index 966de8a136d9..81b0327f719d 100644
--- a/drivers/base/regmap/regmap-sdw.c
+++ b/drivers/base/regmap/regmap-sdw.c
@@ -30,7 +30,7 @@ static int regmap_sdw_read(void *context, unsigned int reg, unsigned int *val)
 	return 0;
 }
 
-static struct regmap_bus regmap_sdw = {
+static const struct regmap_bus regmap_sdw = {
 	.reg_read = regmap_sdw_read,
 	.reg_write = regmap_sdw_write,
 	.reg_format_endian_default = REGMAP_ENDIAN_LITTLE,
diff --git a/drivers/base/regmap/regmap-slimbus.c b/drivers/base/regmap/regmap-slimbus.c
index 0968059f1ef5..8075db788b39 100644
--- a/drivers/base/regmap/regmap-slimbus.c
+++ b/drivers/base/regmap/regmap-slimbus.c
@@ -22,7 +22,7 @@ static int regmap_slimbus_read(void *context, const void *reg, size_t reg_size,
 	return slim_read(sdev, *(u16 *)reg, val_size, val);
 }
 
-static struct regmap_bus regmap_slimbus_bus = {
+static const struct regmap_bus regmap_slimbus_bus = {
 	.write = regmap_slimbus_write,
 	.read = regmap_slimbus_read,
 	.reg_format_endian_default = REGMAP_ENDIAN_LITTLE,
diff --git a/drivers/base/regmap/regmap-w1.c b/drivers/base/regmap/regmap-w1.c
index 1fbaaad71ca5..3a8b402db852 100644
--- a/drivers/base/regmap/regmap-w1.c
+++ b/drivers/base/regmap/regmap-w1.c
@@ -172,17 +172,17 @@ static int w1_reg_a16_v16_write(void *context, unsigned int reg,
  * Various types of supported bus addressing
  */
 
-static struct regmap_bus regmap_w1_bus_a8_v8 = {
+static const struct regmap_bus regmap_w1_bus_a8_v8 = {
 	.reg_read = w1_reg_a8_v8_read,
 	.reg_write = w1_reg_a8_v8_write,
 };
 
-static struct regmap_bus regmap_w1_bus_a8_v16 = {
+static const struct regmap_bus regmap_w1_bus_a8_v16 = {
 	.reg_read = w1_reg_a8_v16_read,
 	.reg_write = w1_reg_a8_v16_write,
 };
 
-static struct regmap_bus regmap_w1_bus_a16_v16 = {
+static const struct regmap_bus regmap_w1_bus_a16_v16 = {
 	.reg_read = w1_reg_a16_v16_read,
 	.reg_write = w1_reg_a16_v16_write,
 };
-- 
2.35.1


             reply	other threads:[~2022-03-30 21:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-30 21:41 Rikard Falkeborn [this message]
2022-04-05  9:31 ` [PATCH] regmap: Constify static regmap_bus structs Mark Brown

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