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Message-ID: <1523111455.21176.418.camel@linux.intel.com>
Subject: Re: [PATCH v4 5/9] vsprintf: Factor out %p[iI] handler as
 ip_addr_string()
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Petr Mladek <pmladek@suse.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        "Tobin C . Harding" <me@tobin.cc>, Joe Perches <joe@perches.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@suse.cz>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        linux-kernel@vger.kernel.org
Date: Sat, 07 Apr 2018 17:30:55 +0300
In-Reply-To: <20180404085843.16050-6-pmladek@suse.com>
References: <20180404085843.16050-1-pmladek@suse.com>
         <20180404085843.16050-6-pmladek@suse.com>
Organization: Intel Finland Oy
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On Wed, 2018-04-04 at 10:58 +0200, Petr Mladek wrote:
> Move the non-trivial code from the long pointer() function. We are
> going
> to add a check for the access to the address that will make it even
> more
> complicated.
> 
> Also it is better to warn about unknown specifier instead of falling
> back to the %p behavior. It will help people to understand what is
> going wrong. They expect the IP address and not a pointer anyway
> in this situation.

> +	WARN_ONCE(1, "Unsupported pointer format specifier:
> %%p%c%c\n",
> +		  fmt[0], fmt[1]);
> 

I think WARN is too much here.

pr_warn_once() ?


-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy