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

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Date:	Mon, 10 Mar 2014 08:50:49 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Petr Mládek <pmladek@...e.cz>
Cc:	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

On Mon, 10 Mar 2014 09:37:29 +0100
Petr Mládek <pmladek@...e.cz> wrote:

> On Fri 07-03-14 13:18:31, Steven Rostedt wrote:
> > 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.
> 
> Sure, it makes sense.
> 
> Acked-by: Petr Mladek <pmladek@...e.cz>

Hi Petr, thanks, but you don't need to ack your own patch ;-)

I was asking H. Peter Anvin for an ack as he's the maintainer of x86.

-- Steve

> 
> Best Regards,
> Petr
> 
> > -- 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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