Subject: [PATCH v3 2/9] ACPI: clear up warnings on use of printk reported by checkpatch.pl

From: [email-masked] (Hanjun Guo)
Date: Wed, 25 Feb 2015 20:55:41 +0800

On 2015?02?25? 08:36, al.stone at linaro.org wrote:
> From: Al Stone <[email-masked]>
>
> In preparation for later splitting out some of the arch-dependent code from
> osl.c, clear up all the warnings reported by checkpatch.pl where pr_* should
> be used instead of printk(KERN_* ...).
>
> Signed-off-by: Al Stone <[email-masked]>
> ---
>   drivers/acpi/osl.c | 46 +++++++++++++++++++---------------------------
>   1 file changed, 19 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
> index 1dc3a3b..865317c 100644
> --- a/drivers/acpi/osl.c
> +++ b/drivers/acpi/osl.c
> @@ -141,7 +141,7 @@ static u32 acpi_osi_handler(acpi_string interface, u32 supported)
>   {
>   	if (!strcmp("Linux", interface)) {
>
> -		printk_once(KERN_NOTICE FW_BUG PREFIX
> +		pr_notice_once(FW_BUG PREFIX

I think you can use pr_fmt() and then remove all the PREFIX in
this patch, just

#define pr_fmt(fmt) "ACPI: " fmt

in top of this file before all #includes.

Thanks
Hanjun