diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /drivers/leds/trigger/ledtrig-cpu.c | |
parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'drivers/leds/trigger/ledtrig-cpu.c')
-rw-r--r-- | drivers/leds/trigger/ledtrig-cpu.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/leds/trigger/ledtrig-cpu.c b/drivers/leds/trigger/ledtrig-cpu.c index 938467fb8..22f0634dd 100644 --- a/drivers/leds/trigger/ledtrig-cpu.c +++ b/drivers/leds/trigger/ledtrig-cpu.c @@ -92,29 +92,22 @@ static struct syscore_ops ledtrig_cpu_syscore_ops = { .resume = ledtrig_cpu_syscore_resume, }; -static int ledtrig_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) +static int ledtrig_online_cpu(unsigned int cpu) { - switch (action & ~CPU_TASKS_FROZEN) { - case CPU_STARTING: - ledtrig_cpu(CPU_LED_START); - break; - case CPU_DYING: - ledtrig_cpu(CPU_LED_STOP); - break; - } - - return NOTIFY_OK; + ledtrig_cpu(CPU_LED_START); + return 0; } - -static struct notifier_block ledtrig_cpu_nb = { - .notifier_call = ledtrig_cpu_notify, -}; +static int ledtrig_prepare_down_cpu(unsigned int cpu) +{ + ledtrig_cpu(CPU_LED_STOP); + return 0; +} static int __init ledtrig_cpu_init(void) { int cpu; + int ret; /* Supports up to 9999 cpu cores */ BUILD_BUG_ON(CONFIG_NR_CPUS > 9999); @@ -133,7 +126,12 @@ static int __init ledtrig_cpu_init(void) } register_syscore_ops(&ledtrig_cpu_syscore_ops); - register_cpu_notifier(&ledtrig_cpu_nb); + + ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "AP_LEDTRIG_STARTING", + ledtrig_online_cpu, ledtrig_prepare_down_cpu); + if (ret < 0) + pr_err("CPU hotplug notifier for ledtrig-cpu could not be registered: %d\n", + ret); pr_info("ledtrig-cpu: registered to indicate activity on CPUs\n"); |