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cpufreq: arm_big_little: make function arguments and structure pointer const

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Make the arguments of functions bL_cpufreq_{register/unregister} as
const as the ops pointer does not modify the fields of the
cpufreq_arm_bL_ops structure it points to. The pointer arm_bL_ops is
also getting initialized with ops but the pointer does not modify the
fields. So, make the function argument and the structure pointer const.
Add const to function prototypes too.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bhumika Goyal 2017-10-19 12:59:14 +02:00 committed by Rafael J. Wysocki
parent d927807738
commit cd6ce860eb
2 changed files with 5 additions and 5 deletions
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6
drivers/cpufreq/arm_big_little.c
View File

@ -57,7 +57,7 @@ static bool bL_switching_enabled;
#define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq) #define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
static struct thermal_cooling_device *cdev[MAX_CLUSTERS]; static struct thermal_cooling_device *cdev[MAX_CLUSTERS];
static struct cpufreq_arm_bL_ops *arm_bL_ops; static const struct cpufreq_arm_bL_ops *arm_bL_ops;
static struct clk *clk[MAX_CLUSTERS]; static struct clk *clk[MAX_CLUSTERS];
static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1]; static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
static atomic_t cluster_usage[MAX_CLUSTERS + 1]; static atomic_t cluster_usage[MAX_CLUSTERS + 1];
@ -617,7 +617,7 @@ static int __bLs_register_notifier(void) { return 0; }
static int __bLs_unregister_notifier(void) { return 0; } static int __bLs_unregister_notifier(void) { return 0; }
#endif #endif
int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops)
{ {
int ret, i; int ret, i;
@ -661,7 +661,7 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
} }
EXPORT_SYMBOL_GPL(bL_cpufreq_register); EXPORT_SYMBOL_GPL(bL_cpufreq_register);
void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops) void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops)
{ {
if (arm_bL_ops != ops) { if (arm_bL_ops != ops) {
pr_err("%s: Registered with: %s, can't unregister, exiting\n", pr_err("%s: Registered with: %s, can't unregister, exiting\n",

4
drivers/cpufreq/arm_big_little.h
View File

@ -37,7 +37,7 @@ struct cpufreq_arm_bL_ops {
void (*free_opp_table)(const struct cpumask *cpumask); void (*free_opp_table)(const struct cpumask *cpumask);
}; };
int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops); int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops);
void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops); void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops);
#endif /* CPUFREQ_ARM_BIG_LITTLE_H */ #endif /* CPUFREQ_ARM_BIG_LITTLE_H */