linux-kernel - Re: [PATCH 4/4] x86: Fix order of warning messages when ftrace modifies code

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Message-ID: <20140307131831.0eefb839@gandalf.local.home>
Date:	Fri, 7 Mar 2014 13:18:31 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	unlisted-recipients:; (no To-header on input)
Cc:	Petr Mladek <pmladek@...e.cz>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Jiri Kosina <jkosina@...e.cz>, linux-kernel@...r.kernel.org,
	x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH 4/4] x86: Fix order of warning messages when ftrace
 modifies code

H. Peter,

I just added this to my 3.16 queue. But can you give an Acked-by for it
too. That way I don't forget to ask you later (3.16 is a ways away ;-)

I'd add it to my 3.15 queue, but I'm trying not to make changes to it
unless they are more significant.

-- Steve


On Mon, 17 Feb 2014 16:22:53 +0100
Petr Mladek <pmladek@...e.cz> wrote:

> The colon at the end of the printk message suggests that it should get printed
> before the details printed by ftrace_bug().
> 
> When touching the line, let's use the preferred pr_warn() macro as suggested
> by checkpatch.pl.
> 
> Signed-off-by: Petr Mladek <pmladek@...e.cz>
> ---
>  arch/x86/kernel/ftrace.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
> index 525a9f954c8b..ad7c38f5206b 100644
> --- a/arch/x86/kernel/ftrace.c
> +++ b/arch/x86/kernel/ftrace.c
> @@ -622,8 +622,8 @@ void ftrace_replace_code(int enable)
>  	return;
>  
>   remove_breakpoints:
> +	pr_warn("Failed on %s (%d):\n", report, count);
>  	ftrace_bug(ret, rec ? rec->ip : 0);
> -	printk(KERN_WARNING "Failed on %s (%d):\n", report, count);
>  	for_ftrace_rec_iter(iter) {
>  		int err;
>  

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