[PATCH 0/2] regulator/qcom: Constify static structs

[PATCH 0/2] regulator/qcom: Constify static structs

[Rikard Falkeborn]

Constify some static structs to allow the compiler to put them in
read-only memory.

Rikard Falkeborn (2):
  regulator: qcom_rpm: Constify struct regulator_ops
  regulator: qcom_spmi: Constify struct regulator_ops

 drivers/regulator/qcom_rpm-regulator.c  |  6 +++---
 drivers/regulator/qcom_spmi-regulator.c | 24 ++++++++++++------------
 2 files changed, 15 insertions(+), 15 deletions(-)

-- 
2.27.0

[PATCH 1/2] regulator: qcom_rpm: Constify struct regulator_ops

[Rikard Falkeborn]

These are never modified, so make them const to allow the compiler to
put them in read-only memory.

Before:
   text    data     bss     dec     hex filename
  17485     500       8   17993    4649 drivers/regulator/qcom_rpm-regulator.o

After:
   text    data     bss     dec     hex filename
  17881     104       8   17993    4649 drivers/regulator/qcom_rpm-regulator.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/regulator/qcom_rpm-regulator.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c
index 0066f850f15d..7f9d66ac37ff 100644
--- a/drivers/regulator/qcom_rpm-regulator.c
+++ b/drivers/regulator/qcom_rpm-regulator.c
@@ -407,7 +407,7 @@ static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA)
 	return ret;
 }
 
-static struct regulator_ops uV_ops = {
+static const struct regulator_ops uV_ops = {
 	.list_voltage = regulator_list_voltage_linear_range,
 
 	.set_voltage_sel = rpm_reg_set_uV_sel,
@@ -420,7 +420,7 @@ static struct regulator_ops uV_ops = {
 	.set_load = rpm_reg_set_load,
 };
 
-static struct regulator_ops mV_ops = {
+static const struct regulator_ops mV_ops = {
 	.list_voltage = regulator_list_voltage_linear_range,
 
 	.set_voltage_sel = rpm_reg_set_mV_sel,
@@ -433,7 +433,7 @@ static struct regulator_ops mV_ops = {
 	.set_load = rpm_reg_set_load,
 };
 
-static struct regulator_ops switch_ops = {
+static const struct regulator_ops switch_ops = {
 	.enable = rpm_reg_switch_enable,
 	.disable = rpm_reg_switch_disable,
 	.is_enabled = rpm_reg_is_enabled,
-- 
2.27.0

[PATCH 2/2] regulator: qcom_spmi: Constify struct regulator_ops

[Rikard Falkeborn]

These are never modified, so make them const to allow the compiler to
put them in read-only memory.

Before:
   text    data     bss     dec     hex filename
  20362    2592     152   23106    5a42 drivers/regulator/qcom_spmi-regulator.o

After:
   text    data     bss     dec     hex filename
  21814    1140     152   23106    5a42 drivers/regulator/qcom_spmi-regulator.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/regulator/qcom_spmi-regulator.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
index 95737e4dd6bb..5ee7c5305d95 100644
--- a/drivers/regulator/qcom_spmi-regulator.c
+++ b/drivers/regulator/qcom_spmi-regulator.c
@@ -380,7 +380,7 @@ struct spmi_regulator_mapping {
 	enum spmi_regulator_logical_type	logical_type;
 	u32					revision_min;
 	u32					revision_max;
-	struct regulator_ops			*ops;
+	const struct regulator_ops		*ops;
 	struct spmi_voltage_set_points		*set_points;
 	int					hpm_min_load;
 };
@@ -1261,7 +1261,7 @@ spmi_regulator_saw_set_voltage(struct regulator_dev *rdev, unsigned selector)
 
 static struct regulator_ops spmi_saw_ops = {};
 
-static struct regulator_ops spmi_smps_ops = {
+static const struct regulator_ops spmi_smps_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1276,7 +1276,7 @@ static struct regulator_ops spmi_smps_ops = {
 	.set_pull_down		= spmi_regulator_common_set_pull_down,
 };
 
-static struct regulator_ops spmi_ldo_ops = {
+static const struct regulator_ops spmi_ldo_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1293,7 +1293,7 @@ static struct regulator_ops spmi_ldo_ops = {
 	.set_soft_start		= spmi_regulator_common_set_soft_start,
 };
 
-static struct regulator_ops spmi_ln_ldo_ops = {
+static const struct regulator_ops spmi_ln_ldo_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1305,7 +1305,7 @@ static struct regulator_ops spmi_ln_ldo_ops = {
 	.get_bypass		= spmi_regulator_common_get_bypass,
 };
 
-static struct regulator_ops spmi_vs_ops = {
+static const struct regulator_ops spmi_vs_ops = {
 	.enable			= spmi_regulator_vs_enable,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1316,7 +1316,7 @@ static struct regulator_ops spmi_vs_ops = {
 	.get_mode		= spmi_regulator_common_get_mode,
 };
 
-static struct regulator_ops spmi_boost_ops = {
+static const struct regulator_ops spmi_boost_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1327,7 +1327,7 @@ static struct regulator_ops spmi_boost_ops = {
 	.set_input_current_limit = spmi_regulator_set_ilim,
 };
 
-static struct regulator_ops spmi_ftsmps_ops = {
+static const struct regulator_ops spmi_ftsmps_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1342,7 +1342,7 @@ static struct regulator_ops spmi_ftsmps_ops = {
 	.set_pull_down		= spmi_regulator_common_set_pull_down,
 };
 
-static struct regulator_ops spmi_ult_lo_smps_ops = {
+static const struct regulator_ops spmi_ult_lo_smps_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1356,7 +1356,7 @@ static struct regulator_ops spmi_ult_lo_smps_ops = {
 	.set_pull_down		= spmi_regulator_common_set_pull_down,
 };
 
-static struct regulator_ops spmi_ult_ho_smps_ops = {
+static const struct regulator_ops spmi_ult_ho_smps_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1371,7 +1371,7 @@ static struct regulator_ops spmi_ult_ho_smps_ops = {
 	.set_pull_down		= spmi_regulator_common_set_pull_down,
 };
 
-static struct regulator_ops spmi_ult_ldo_ops = {
+static const struct regulator_ops spmi_ult_ldo_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1388,7 +1388,7 @@ static struct regulator_ops spmi_ult_ldo_ops = {
 	.set_soft_start		= spmi_regulator_common_set_soft_start,
 };
 
-static struct regulator_ops spmi_ftsmps426_ops = {
+static const struct regulator_ops spmi_ftsmps426_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -1403,7 +1403,7 @@ static struct regulator_ops spmi_ftsmps426_ops = {
 	.set_pull_down		= spmi_regulator_common_set_pull_down,
 };
 
-static struct regulator_ops spmi_hfs430_ops = {
+static const struct regulator_ops spmi_hfs430_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
-- 
2.27.0

Re: [PATCH 0/2] regulator/qcom: Constify static structs

[Mark Brown]

On Mon, 29 Jun 2020 21:46:30 +0200, Rikard Falkeborn wrote:
> Constify some static structs to allow the compiler to put them in
> read-only memory.
> 
> Rikard Falkeborn (2):
>   regulator: qcom_rpm: Constify struct regulator_ops
>   regulator: qcom_spmi: Constify struct regulator_ops
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next

Thanks!

[1/2] regulator: qcom_rpm: Constify struct regulator_ops
      commit: 8d41df6469eec8d784137aeeebf87dca7460ce37
[2/2] regulator: qcom_spmi: Constify struct regulator_ops
      commit: 3b619e3e2d1a89f383a0a0c527818dcb2bc66f92

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark