linux-kernel - Re: [PATCH 4/4] coding-style: add explanation about pr

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Date:   Fri, 13 Sep 2019 16:36:42 -0300
From:   André Almeida <andrealmeid@...labora.com>
To:     Joe Perches <joe@...ches.com>, linux-block@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     corbet@....net, axboe@...nel.dk, kernel@...labora.com,
        krisman@...labora.com
Subject: Re: [PATCH 4/4] coding-style: add explanation about pr_fmt macro

On 9/13/19 4:08 PM, Joe Perches wrote:
> On Fri, 2019-09-13 at 15:57 -0300, André Almeida wrote:
>> The pr_fmt macro is useful to format log messages printed by pr_XXXX()
>> functions. Add text to explain the purpose of it, how to use and an
>> example.
> []
>> diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst
> []
>> @@ -819,7 +819,15 @@ which you should use to make sure messages are matched to the right device
>>  and driver, and are tagged with the right level:  dev_err(), dev_warn(),
>>  dev_info(), and so forth.  For messages that aren't associated with a
>>  particular device, <linux/printk.h> defines pr_notice(), pr_info(),
>> -pr_warn(), pr_err(), etc.
>> +pr_warn(), pr_err(), etc. It's possible to format pr_XXX() messages using the
>> +macro pr_fmt() to prevent rewriting the style of messages. It should be
>> +defined before including ``include/printk.h``, to avoid compiler warning about
> 
> Please make this '#include <linux/kernel.h>'
> 
> printk.h should normally not be #included.
> 

Thanks for the feedback, changed for v2.