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SubjectRe: [PATCH] drivers: cpuidle: This patch fix the following checkpatch warning.
Date
On Wednesday, April 17, 2019 4:52:34 PM CEST Mohan Kumar wrote:
> Use pr_debug instead of printk
>
> WARNING: Prefer [subsystem eg: netdev]_dbg([subsystem]dev, ... then
> dev_dbg(dev, ... then pr_debug(... to printk(KERN_DEBUG ...
>
> Signed-off-by: Mohan Kumar <mohankumar718@gmail.com>
> ---
> drivers/cpuidle/cpuidle-powernv.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
> index 84b1ebe..7cf9835 100644
> --- a/drivers/cpuidle/cpuidle-powernv.c
> +++ b/drivers/cpuidle/cpuidle-powernv.c
> @@ -401,7 +401,7 @@ static int __init powernv_processor_idle_init(void)
> powernv_cpuidle_driver_init();
> retval = cpuidle_register(&powernv_idle_driver, NULL);
> if (retval) {
> - printk(KERN_DEBUG "Registration of powernv driver failed.\n");
> + pr_debug("Registration of powernv driver failed.\n");
> return retval;
> }
>
> @@ -413,7 +413,7 @@ static int __init powernv_processor_idle_init(void)
> "cpuidle/powernv:dead", NULL,
> powernv_cpuidle_cpu_dead);
> WARN_ON(retval < 0);
> - printk(KERN_DEBUG "powernv_idle_driver registered\n");
> + pr_debug("powernv_idle_driver registered\n");
> return 0;
> }
>
>

Recently, you've sent two different patches against two different drivers with the same subject.

IMO it is fair enough to call that "confusing".

Moreover, pr_debug() is not a direct replacement for printk(KERN_DEBUG ) as the latter does
not require dynamic debug to be enabled and I'm not really sure if you are aware of that
difference.




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