[PATCH] PowerCap: constify powercap_zone_ops and powercap_zone_constraint_ops structures

From: Julia Lawall
Date: Wed Dec 23 2015 - 17:12:33 EST


The powercap_zone_ops and powercap_zone_constraint_ops structures are never
modified, so declare them as const.

Most of the actual changes adjust indentation to accomodate the const
keyword.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

---
drivers/powercap/intel_rapl.c | 4 ++--
drivers/powercap/powercap_sys.c | 18 +++++++++---------
include/linux/powercap.h | 4 ++--
3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 4099159..6c592dc 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -388,7 +388,7 @@ static int get_domain_enable(struct powercap_zone *power_zone, bool *mode)
}

/* per RAPL domain ops, in the order of rapl_domain_type */
-static struct powercap_zone_ops zone_ops[] = {
+static const struct powercap_zone_ops zone_ops[] = {
/* RAPL_DOMAIN_PACKAGE */
{
.get_energy_uj = get_energy_counter,
@@ -584,7 +584,7 @@ static int get_max_power(struct powercap_zone *power_zone, int id,
return ret;
}

-static struct powercap_zone_constraint_ops constraint_ops = {
+static const struct powercap_zone_constraint_ops constraint_ops = {
.set_power_limit_uw = set_power_limit,
.get_power_limit_uw = get_current_power_limit,
.set_time_window_us = set_time_window,
diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 84419af..14bde0d 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -293,8 +293,8 @@ err_alloc:
}

static int create_constraints(struct powercap_zone *power_zone,
- int nr_constraints,
- struct powercap_zone_constraint_ops *const_ops)
+ int nr_constraints,
+ const struct powercap_zone_constraint_ops *const_ops)
{
int i;
int ret = 0;
@@ -492,13 +492,13 @@ static struct class powercap_class = {
};

struct powercap_zone *powercap_register_zone(
- struct powercap_zone *power_zone,
- struct powercap_control_type *control_type,
- const char *name,
- struct powercap_zone *parent,
- const struct powercap_zone_ops *ops,
- int nr_constraints,
- struct powercap_zone_constraint_ops *const_ops)
+ struct powercap_zone *power_zone,
+ struct powercap_control_type *control_type,
+ const char *name,
+ struct powercap_zone *parent,
+ const struct powercap_zone_ops *ops,
+ int nr_constraints,
+ const struct powercap_zone_constraint_ops *const_ops)
{
int result;
int nr_attrs;
diff --git a/include/linux/powercap.h b/include/linux/powercap.h
index 4e25041..f0a4e62 100644
--- a/include/linux/powercap.h
+++ b/include/linux/powercap.h
@@ -208,7 +208,7 @@ struct powercap_zone_constraint_ops {
struct powercap_zone_constraint {
int id;
struct powercap_zone *power_zone;
- struct powercap_zone_constraint_ops *ops;
+ const struct powercap_zone_constraint_ops *ops;
};


@@ -309,7 +309,7 @@ struct powercap_zone *powercap_register_zone(
struct powercap_zone *parent,
const struct powercap_zone_ops *ops,
int nr_constraints,
- struct powercap_zone_constraint_ops *const_ops);
+ const struct powercap_zone_constraint_ops *const_ops);

/**
* powercap_unregister_zone() - Unregister a zone device

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