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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-07-15 22:02:11 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-07-21 13:41:33 +0200 |
| commit | d431cbc53cb787a7f82d7d2fe0af65156db4d27a (patch) | |
| tree | d97b5744f4eae1bfa41ab2cc16820173ffc3aef2 /kernel/power/main.c | |
| parent | 9a3c4145af32125c5ee39c0272662b47307a8323 (diff) | |
| download | linux-d431cbc53cb787a7f82d7d2fe0af65156db4d27a.tar.bz2 | |
PM / sleep: Simplify sleep states sysfs interface code
Simplify the sleep states sysfs interface /sys/power/state code by
redefining pm_states[] as an array of pointers to constant strings
such that only the entries corresponding to valid states are set.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power/main.c')
| -rw-r--r-- | kernel/power/main.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c index 8e90f330f139..d57f66a367dc 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -296,8 +296,8 @@ static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr, suspend_state_t i; for (i = PM_SUSPEND_MIN; i < PM_SUSPEND_MAX; i++) - if (pm_states[i].state) - s += sprintf(s,"%s ", pm_states[i].label); + if (pm_states[i]) + s += sprintf(s,"%s ", pm_states[i]); #endif if (hibernation_available()) @@ -311,8 +311,7 @@ static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr, static suspend_state_t decode_state(const char *buf, size_t n) { #ifdef CONFIG_SUSPEND - suspend_state_t state = PM_SUSPEND_MIN; - struct pm_sleep_state *s; + suspend_state_t state; #endif char *p; int len; @@ -325,10 +324,12 @@ static suspend_state_t decode_state(const char *buf, size_t n) return PM_SUSPEND_MAX; #ifdef CONFIG_SUSPEND - for (s = &pm_states[state]; state < PM_SUSPEND_MAX; s++, state++) - if (s->state && len == strlen(s->label) - && !strncmp(buf, s->label, len)) - return s->state; + for (state = PM_SUSPEND_MIN; state < PM_SUSPEND_MAX; state++) { + const char *label = pm_states[state]; + + if (label && len == strlen(label) && !strncmp(buf, label, len)) + return state; + } #endif return PM_SUSPEND_ON; @@ -446,8 +447,8 @@ static ssize_t autosleep_show(struct kobject *kobj, #ifdef CONFIG_SUSPEND if (state < PM_SUSPEND_MAX) - return sprintf(buf, "%s\n", pm_states[state].state ? - pm_states[state].label : "error"); + return sprintf(buf, "%s\n", pm_states[state] ? + pm_states[state] : "error"); #endif #ifdef CONFIG_HIBERNATION return sprintf(buf, "disk\n"); |