regulator: tps6594-regulator: Constify struct tps6594_regulator_irq_type

'struct tps6594_regulator_irq_type' are not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increases overall security.

On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
25645 14480 64 40189 9cfd drivers/regulator/tps6594-regulator.o

After:
=====
text data bss dec hex filename
27949 12176 64 40189 9cfd drivers/regulator/tps6594-regulator.o

Signed-off-by: Christophe JAILLET <[e-mail]>
Link: https://patch.msgid.link/1446fb1938[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/tps6594-regulator.c

···
 	unsigned long event;
 };
 
-static struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {
 	{ TPS6594_IRQ_NAME_VCCA_OV, "VCCA", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_VCCA_UV, "VCCA", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_VMON1_OV, "VMON1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
···
 	  REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 };
 
-static struct tps6594_regulator_irq_type tps65224_ext_regulator_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_ext_regulator_irq_types[] = {
 	{ TPS65224_IRQ_NAME_VCCA_UVOV, "VCCA", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 	{ TPS65224_IRQ_NAME_VMON1_UVOV, "VMON1", "voltage out of range",
···
 
 struct tps6594_regulator_irq_data {
 	struct device *dev;
-	struct tps6594_regulator_irq_type *type;
+	const struct tps6594_regulator_irq_type *type;
 	struct regulator_dev *rdev;
 };
 
 struct tps6594_ext_regulator_irq_data {
 	struct device *dev;
-	struct tps6594_regulator_irq_type *type;
+	const struct tps6594_regulator_irq_type *type;
 };
 
 #define TPS6594_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
···
 			  4, 0, 0, NULL, 0, 0),
 };
 
-static struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK1_OV, "BUCK1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK1_UV, "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_BUCK1_SC, "BUCK1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_buck2_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_buck2_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK2_OV, "BUCK2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK2_UV, "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_BUCK2_SC, "BUCK2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_buck3_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_buck3_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK3_OV, "BUCK3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK3_UV, "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_BUCK3_SC, "BUCK3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_buck4_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_buck4_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK4_OV, "BUCK4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK4_UV, "BUCK4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_BUCK4_SC, "BUCK4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_buck5_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_buck5_irq_types[] = {
 	{ TPS6594_IRQ_NAME_BUCK5_OV, "BUCK5", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_BUCK5_UV, "BUCK5", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_BUCK5_SC, "BUCK5", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_ldo1_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_ldo1_irq_types[] = {
 	{ TPS6594_IRQ_NAME_LDO1_OV, "LDO1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_LDO1_UV, "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_LDO1_SC, "LDO1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_ldo2_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_ldo2_irq_types[] = {
 	{ TPS6594_IRQ_NAME_LDO2_OV, "LDO2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_LDO2_UV, "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_LDO2_SC, "LDO2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_ldo3_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_ldo3_irq_types[] = {
 	{ TPS6594_IRQ_NAME_LDO3_OV, "LDO3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_LDO3_UV, "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_LDO3_SC, "LDO3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {
 	{ TPS6594_IRQ_NAME_LDO4_OV, "LDO4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
 	{ TPS6594_IRQ_NAME_LDO4_UV, "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
 	{ TPS6594_IRQ_NAME_LDO4_SC, "LDO4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
···
 	  REGULATOR_EVENT_OVER_CURRENT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_buck1_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_buck1_irq_types[] = {
 	{ TPS65224_IRQ_NAME_BUCK1_UVOV, "BUCK1", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_buck2_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_buck2_irq_types[] = {
 	{ TPS65224_IRQ_NAME_BUCK2_UVOV, "BUCK2", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_buck3_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_buck3_irq_types[] = {
 	{ TPS65224_IRQ_NAME_BUCK3_UVOV, "BUCK3", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_buck4_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_buck4_irq_types[] = {
 	{ TPS65224_IRQ_NAME_BUCK4_UVOV, "BUCK4", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_ldo1_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_ldo1_irq_types[] = {
 	{ TPS65224_IRQ_NAME_LDO1_UVOV, "LDO1", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_ldo2_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_ldo2_irq_types[] = {
 	{ TPS65224_IRQ_NAME_LDO2_UVOV, "LDO2", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type tps65224_ldo3_irq_types[] = {
+static const struct tps6594_regulator_irq_type tps65224_ldo3_irq_types[] = {
 	{ TPS65224_IRQ_NAME_LDO3_UVOV, "LDO3", "voltage out of range",
 	  REGULATOR_EVENT_REGULATION_OUT },
 };
 
-static struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {
+static const struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {
 	tps6594_buck1_irq_types,
 	tps6594_buck2_irq_types,
 	tps6594_buck3_irq_types,
···
 	tps6594_buck5_irq_types,
 };
 
-static struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {
+static const struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {
 	tps6594_ldo1_irq_types,
 	tps6594_ldo2_irq_types,
 	tps6594_ldo3_irq_types,
 	tps6594_ldo4_irq_types,
 };
 
-static struct tps6594_regulator_irq_type *tps65224_bucks_irq_types[] = {
+static const struct tps6594_regulator_irq_type *tps65224_bucks_irq_types[] = {
 	tps65224_buck1_irq_types,
 	tps65224_buck2_irq_types,
 	tps65224_buck3_irq_types,
 	tps65224_buck4_irq_types,
 };
 
-static struct tps6594_regulator_irq_type *tps65224_ldos_irq_types[] = {
+static const struct tps6594_regulator_irq_type *tps65224_ldos_irq_types[] = {
 	tps65224_ldo1_irq_types,
 	tps65224_ldo2_irq_types,
 	tps65224_ldo3_irq_types,
···
 static int tps6594_request_reg_irqs(struct platform_device *pdev,
 				    struct regulator_dev *rdev,
 				    struct tps6594_regulator_irq_data *irq_data,
-				    struct tps6594_regulator_irq_type *regs_irq_types,
+				    const struct tps6594_regulator_irq_type *regs_irq_types,
 				    size_t interrupt_cnt,
 				    int *irq_idx)
 {
-	struct tps6594_regulator_irq_type *irq_type;
+	const struct tps6594_regulator_irq_type *irq_type;
 	struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
 	size_t j;
 	int irq;
···
 	struct regulator_config config = {};
 	struct tps6594_regulator_irq_data *irq_data;
 	struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
-	struct tps6594_regulator_irq_type *irq_type;
-	struct tps6594_regulator_irq_type *irq_types;
+	const struct tps6594_regulator_irq_type *irq_type;
+	const struct tps6594_regulator_irq_type *irq_types;
 	bool buck_configured[BUCK_NB] = { false };
 	bool buck_multi[MULTI_PHASE_NB] = { false };
 
···
 	unsigned int irq_count;
 	unsigned int multi_phase_cnt;
 	size_t reg_irq_nb;
-	struct tps6594_regulator_irq_type **bucks_irq_types;
+	const struct tps6594_regulator_irq_type **bucks_irq_types;
 	const struct regulator_desc *multi_regs;
-	struct tps6594_regulator_irq_type **ldos_irq_types;
+	const struct tps6594_regulator_irq_type **ldos_irq_types;
 	const struct regulator_desc *ldo_regs;
 	size_t interrupt_count;