Re: [PATCH] drivers: cpuidle: Fix checkpatch error and warnings

From: Rafael J. Wysocki
Date: Thu Sep 07 2017 - 19:18:56 EST


On Thu, Sep 7, 2017 at 2:40 PM, gaurav jindal
<gauravjindal1104@xxxxxxxxx> wrote:
> this patch fixes the below checkpatch errors and warnings in
> drivers/cpuidle/cpuidle.c
>
> WARNING: line over 80 characters
> #311: FILE: drivers/cpuidle/cpuidle.c:311:
> + /* Make sure all changes finished before we switch to new idle */
>
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> #343: FILE: drivers/cpuidle/cpuidle.c:343:
> +EXPORT_SYMBOL_GPL(cpuidle_pause_and_lock);
>
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> #354: FILE: drivers/cpuidle/cpuidle.c:354:
> +EXPORT_SYMBOL_GPL(cpuidle_resume_and_unlock);
>
> ERROR: do not use assignment in if condition
> #402: FILE: drivers/cpuidle/cpuidle.c:402:
> + if (cpuidle_curr_governor->enable &&
>
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> #419: FILE: drivers/cpuidle/cpuidle.c:419:
> +EXPORT_SYMBOL_GPL(cpuidle_enable_device);
>
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> #447: FILE: drivers/cpuidle/cpuidle.c:447:
> +EXPORT_SYMBOL_GPL(cpuidle_disable_device);
>
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> #537: FILE: drivers/cpuidle/cpuidle.c:537:
> +EXPORT_SYMBOL_GPL(cpuidle_register_device);
>
> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
> #561: FILE: drivers/cpuidle/cpuidle.c:561:
> +EXPORT_SYMBOL_GPL(cpuidle_unregister_device);
>
> Signed-off-by:gaurav jindal<gauravjindal1104@xxxxxxxxx>
>
> ---
>
> diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
> index 60bb64f..a42148e 100644
> --- a/drivers/cpuidle/cpuidle.c
> +++ b/drivers/cpuidle/cpuidle.c
> @@ -308,7 +308,10 @@ void cpuidle_reflect(struct cpuidle_device *dev, int index)
> void cpuidle_install_idle_handler(void)
> {
> if (enabled_devices) {
> - /* Make sure all changes finished before we switch to new idle */
> + /*
> + * Make sure all changes finished before we switch to
> + * new idle
> + */
> smp_wmb();
> initialized = 1;
> }

Don't do this.

The rest is fine by me.