linux-kernel - Re: [PATCH v4 1/7] arm64: Use pr

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Date:	Wed, 30 Apr 2014 11:32:32 +0900
From:	Jungseok Lee <jays.lee@...sung.com>
To:	'Mitchel Humpherys' <mitchelh@...eaurora.org>
Cc:	linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
	Catalin.Marinas@....com, 'Marc Zyngier' <Marc.Zyngier@....com>,
	'Christoffer Dall' <christoffer.dall@...aro.org>,
	kgene.kim@...sung.com, steve.capper@...aro.org,
	'Arnd Bergmann' <arnd@...db.de>, linux-kernel@...r.kernel.org,
	ilho215.lee@...sung.com,
	'linux-samsung-soc' <linux-samsung-soc@...r.kernel.org>,
	sungjinn.chung@...sung.com
Subject: Re: [PATCH v4 1/7] arm64: Use pr_* instead of printk

On Wednesday, April 30, 2014 5:35 AM, Mitchel Humpherys wrote:
> On Mon, Apr 28 2014 at 09:59:14 PM, Jungseok Lee <jays.lee@...sung.com> wrote:
> > This patch fixed the following checkpatch complaint as using pr_*
> > instead of printk.
> >
> > WARNING: printk() should include KERN_ facility level
> >
> > Cc: Catalin Marinas <catalin.marinas@....com>
> > Signed-off-by: Jungseok Lee <jays.lee@...sung.com>
> > Reviewed-by: Sungjinn Chung <sungjinn.chung@...sung.com>
> > ---
> >  arch/arm64/kernel/traps.c |   14 +++++++-------
> >  1 file changed, 7 insertions(+), 7 deletions(-)
> >
> > diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
> > index 7ffaddd..0484e81 100644
> > --- a/arch/arm64/kernel/traps.c
> > +++ b/arch/arm64/kernel/traps.c
> > @@ -65,7 +65,7 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom,
> >  	fs = get_fs();
> >  	set_fs(KERNEL_DS);
> >
> > -	printk("%s%s(0x%016lx to 0x%016lx)\n", lvl, str, bottom, top);
> > +	pr_emerg("%s%s(0x%016lx to 0x%016lx)\n", lvl, str, bottom, top);
> 
> Currently this printk is being called with lvl=KERN_EMERG or lvl="". In the case of lvl=KERN_EMERG
> leaving lvl in is redundant. In the case of lvl="" this is a behavioral change (printing to a
> different log level). Was this intended?

No intention. I will drop the change in the next version.
Thanks!!

Best Regards
Jungseok Lee

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