linux-kernel - Re: [PATCH v2] HID: hidraw: replace printk() with corresponding pr

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Date:   Thu, 19 Sep 2019 09:16:13 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Rishi Gupta <gupt21@...il.com>
Cc:     jikos@...nel.org, benjamin.tissoires@...hat.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] HID: hidraw: replace printk() with corresponding
 pr_xx() variant

Hi Rishi,

On Wed, Sep 18, 2019 at 09:59:11PM +0530, Rishi Gupta wrote:
> This commit replaces direct invocations of printk with
> their appropriate pr_info/warn() variant.
> 
> Signed-off-by: Rishi Gupta <gupt21@...il.com>
> ---
> Changes in v2:
> - Removed manually adding prefix "hidraw:".
> 
>  drivers/hid/hidraw.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
> index 006bd6f..2d082f3 100644
> --- a/drivers/hid/hidraw.c
> +++ b/drivers/hid/hidraw.c
> @@ -197,14 +197,14 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
>  	}
>  
>  	if (count > HID_MAX_BUFFER_SIZE) {
> -		printk(KERN_WARNING "hidraw: pid %d passed too large report\n",
> +		pr_warn("pid %d passed too large report\n",
>  				task_pid_nr(current));

It looks like here and in the instance below you actually have a hid
device, so you can use hid_warn() instead of pr_warn(), similarly to
hidraw_send_report().

The change to pr_info() in hidraw_init() is good.

Thanks.

-- 
Dmitry