linux-kernel - Re: [PATCH] cpuidle: moved EXPORT_SYMBOL so that it immediately followed its function/variable

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Date:   Wed, 30 Jun 2021 19:38:46 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Jinchao Wang <wjc@...rlc.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cpuidle: moved EXPORT_SYMBOL so that it immediately
 followed its function/variable

On Wed, Jun 23, 2021 at 11:26 AM Jinchao Wang <wjc@...rlc.com> wrote:
>
> change made to resolve following checkpatch message:
>   WARNING: EXPORT_SYMBOL(foo); should immediately follow its
> function/variable

checkpatch errors regarding the existing code base are not relevant as a rule.

Now, this patch removes unnecessary empty lines, so it is not
meritless, but it should go under a different subject and with a
changelog describing what's going on.

Something like

Subject: [PATCH] cpuidle: Remove unnecessary empty lines preceding
EXPORT_SYMBOL_GPL()

In several places in cpuidle.c there are empty lines between the
definition of a function and the following EXPORT_SYMBOL_GPL() which
are not necessary, so remove them.

> Signed-off-by: Jinchao Wang <wjc@...rlc.com>
> ---
>  drivers/cpuidle/cpuidle.c | 6 ------
>  1 file changed, 6 deletions(-)
>
> diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
> index ef2ea1b12cd8..ddd11236a0cc 100644
> --- a/drivers/cpuidle/cpuidle.c
> +++ b/drivers/cpuidle/cpuidle.c
> @@ -457,7 +457,6 @@ void cpuidle_pause_and_lock(void)
>         mutex_lock(&cpuidle_lock);
>         cpuidle_uninstall_idle_handler();
>  }
> -
>  EXPORT_SYMBOL_GPL(cpuidle_pause_and_lock);
>
>  /**
> @@ -468,7 +467,6 @@ void cpuidle_resume_and_unlock(void)
>         cpuidle_install_idle_handler();
>         mutex_unlock(&cpuidle_lock);
>  }
> -
>  EXPORT_SYMBOL_GPL(cpuidle_resume_and_unlock);
>
>  /* Currently used in suspend/resume path to suspend cpuidle */
> @@ -538,7 +536,6 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
>
>         return ret;
>  }
> -
>  EXPORT_SYMBOL_GPL(cpuidle_enable_device);
>
>  /**
> @@ -566,7 +563,6 @@ void cpuidle_disable_device(struct cpuidle_device *dev)
>         cpuidle_remove_device_sysfs(dev);
>         enabled_devices--;
>  }
> -
>  EXPORT_SYMBOL_GPL(cpuidle_disable_device);
>
>  static void __cpuidle_unregister_device(struct cpuidle_device *dev)
> @@ -665,7 +661,6 @@ int cpuidle_register_device(struct cpuidle_device *dev)
>         __cpuidle_unregister_device(dev);
>         goto out_unlock;
>  }
> -
>  EXPORT_SYMBOL_GPL(cpuidle_register_device);
>
>  /**
> @@ -689,7 +684,6 @@ void cpuidle_unregister_device(struct cpuidle_device *dev)
>
>         cpuidle_resume_and_unlock();
>  }
> -
>  EXPORT_SYMBOL_GPL(cpuidle_unregister_device);
>
>  /**
> --
> 2.31.1
>
>
>