hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[CPUFREQ] checkpatch cleanups for userspace governor 

Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Dave Jones 2009-01-18 01:51:46 -05:00
parent 0a829c5afd
commit 1bceb8d139
1 changed files with 14 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/cpufreq/cpufreq_userspace.c
View File

@ -24,9 +24,6 @@
#include <linux/sysfs.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
/**
* A few values needed by the userspace governor
*/
@ -37,7 +34,7 @@ static DEFINE_PER_CPU(unsigned int, cpu_set_freq); /* CPU freq desired by
userspace */
static DEFINE_PER_CPU(unsigned int, cpu_is_managed);
static DEFINE_MUTEX (userspace_mutex);
static DEFINE_MUTEX(userspace_mutex);
static int cpus_using_userspace_governor;
#define dprintk(msg...) \
@ -46,9 +43,9 @@ static int cpus_using_userspace_governor;
/* keep track of frequency transitions */
static int
userspace_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
void *data)
void *data)
{
struct cpufreq_freqs *freq = data;
struct cpufreq_freqs *freq = data;
if (!per_cpu(cpu_is_managed, freq->cpu))
return 0;
@ -57,11 +54,11 @@ userspace_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
freq->cpu, freq->new);
per_cpu(cpu_cur_freq, freq->cpu) = freq->new;
return 0;
return 0;
}
static struct notifier_block userspace_cpufreq_notifier_block = {
.notifier_call = userspace_cpufreq_notifier
.notifier_call = userspace_cpufreq_notifier
};
@ -93,8 +90,11 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq)
* We're safe from concurrent calls to ->target() here
* as we hold the userspace_mutex lock. If we were calling
* cpufreq_driver_target, a deadlock situation might occur:
* A: cpufreq_set (lock userspace_mutex) -> cpufreq_driver_target(lock policy->lock)
* B: cpufreq_set_policy(lock policy->lock) -> __cpufreq_governor -> cpufreq_governor_userspace (lock userspace_mutex)
* A: cpufreq_set (lock userspace_mutex) ->
* cpufreq_driver_target(lock policy->lock)
* B: cpufreq_set_policy(lock policy->lock) ->
* __cpufreq_governor ->
* cpufreq_governor_userspace (lock userspace_mutex)
*/
ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L);
@ -210,9 +210,10 @@ static void __exit cpufreq_gov_userspace_exit(void)
}
MODULE_AUTHOR ("Dominik Brodowski <linux@brodo.de>, Russell King <rmk@arm.linux.org.uk>");
MODULE_DESCRIPTION ("CPUfreq policy governor 'userspace'");
MODULE_LICENSE ("GPL");
MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>, "
"Russell King <rmk@arm.linux.org.uk>");
MODULE_DESCRIPTION("CPUfreq policy governor 'userspace'");
MODULE_LICENSE("GPL");
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE
fs_initcall(cpufreq_gov_userspace_init);