linux-kernel - Re: [PATCH RESEND] ARM: EXYNOS: Do not calculate boot address twice

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Message-id: <1409560754.26751.2.camel@AMDC1943>
Date:	Mon, 01 Sep 2014 10:39:14 +0200
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Kukjin Kim <kgene.kim@...sung.com>
Cc:	'Russell King' <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	'Kyungmin Park' <kyungmin.park@...sung.com>,
	'Marek Szyprowski' <m.szyprowski@...sung.com>,
	'Bartlomiej Zolnierkiewicz' <b.zolnierkie@...sung.com>,
	'Sachin Kamat' <sachin.kamat@...aro.org>,
	'Tomasz Figa' <t.figa@...sung.com>
Subject: Re: [PATCH RESEND] ARM: EXYNOS: Do not calculate boot address twice

On pią, 2014-07-04 at 17:41 +0900, Kukjin Kim wrote:
> Krzysztof Kozlowski wrote:
> > 
> > Commit b3205dea8fbf ("ARM: EXYNOS: Map SYSRAM through generic DT
> > bindings") introduced local variable boot_reg where boot address from
> > cpu_boot_reg() call is stored. Re-use it instead calling cpu_boot_reg()
> > again.
> > 
> > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > ---
> >  arch/arm/mach-exynos/platsmp.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
> > index 1c8d31e39520..55ed2e6729c5 100644
> > --- a/arch/arm/mach-exynos/platsmp.c
> > +++ b/arch/arm/mach-exynos/platsmp.c
> > @@ -155,7 +155,7 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
> >  				ret = PTR_ERR(boot_reg);
> >  				goto fail;
> >  			}
> > -			__raw_writel(boot_addr, cpu_boot_reg(phys_cpu));
> > +			__raw_writel(boot_addr, boot_reg);
> >  		}
> > 
> >  		call_firmware_op(cpu_boot, phys_cpu);
> > @@ -242,7 +242,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
> > 
> >  			if (IS_ERR(boot_reg))
> >  				break;
> > -			__raw_writel(boot_addr, cpu_boot_reg(phys_cpu));
> > +			__raw_writel(boot_addr, boot_reg);
> >  		}
> >  	}
> >  }
> > --
> > 1.9.1
> 
> Oh, good catch. will apply :-)

Hi Kukjin,

I cannot find this patch in your tree or in next. Did you applied this? 

Best regards,
Krzysztof


> Thanks,
> Kukjin

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