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From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
To: Chen Gang <gang.chen@asianux.com>
Cc: chenhui.zhao@freescale.com, "paulus@samba.org" <paulus@samba.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v2] powerpc: kernel: remove useless code which related with 'max_cpus'
Date: Mon, 22 Jul 2013 12:21:16 +0530	[thread overview]
Message-ID: <51ECD664.7040708@linux.vnet.ibm.com> (raw)
In-Reply-To: <51ECD3D4.9020405@asianux.com>

On 07/22/2013 12:10 PM, Chen Gang wrote:
> Since not need 'max_cpus' after the related commit, the related code
> are useless too, need be removed.
> 
> The related commit:
> 
>   c1aa687 powerpc: Clean up obsolete code relating to decrementer and timebase
> 
> The related warning:
> 
>   arch/powerpc/kernel/smp.c:323:43: warning: parameter ‘max_cpus’ set but not used [-Wunused-but-set-parameter]
> 
> Signed-off-by: Chen Gang <gang.chen@asianux.com>

This version looks good.

Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>

Regards,
Srivatsa S. Bhat

> ---
>  arch/powerpc/kernel/smp.c |    9 ++-------
>  1 files changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
> index 38b0ba6..7edbd5b 100644
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@ -346,13 +346,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
>  	cpumask_set_cpu(boot_cpuid, cpu_sibling_mask(boot_cpuid));
>  	cpumask_set_cpu(boot_cpuid, cpu_core_mask(boot_cpuid));
> 
> -	if (smp_ops)
> -		if (smp_ops->probe)
> -			max_cpus = smp_ops->probe();
> -		else
> -			max_cpus = NR_CPUS;
> -	else
> -		max_cpus = 1;
> +	if (smp_ops && smp_ops->probe)
> +		smp_ops->probe();
>  }
> 
>  void smp_prepare_boot_cpu(void)
> 

  reply	other threads:[~2013-07-22  6:54 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-22  5:58 [PATCH] powerpc: kernel: remove useless code which related with 'max_cpus' Chen Gang
2013-07-22  6:18 ` Srivatsa S. Bhat
2013-07-22  6:27   ` Chen Gang
2013-07-22  6:40     ` [PATCH v2] " Chen Gang
2013-07-22  6:51       ` Srivatsa S. Bhat [this message]
2013-07-22  7:03         ` Chen Gang
2013-07-23 13:44         ` Michael Ellerman
2013-07-24  0:28           ` Chen Gang
2013-07-24  1:16             ` Michael Ellerman
2013-07-24  2:09               ` Chen Gang
2013-07-25  3:15                 ` Michael Ellerman
2013-07-25  4:02                   ` Chen Gang
2013-07-25  5:16                   ` Benjamin Herrenschmidt
2013-07-25  5:24                     ` Chen Gang
2013-07-25  5:51                       ` Benjamin Herrenschmidt
2013-07-25  6:03                         ` Benjamin Herrenschmidt
2013-07-25  6:30                           ` Chen Gang
2013-07-25  6:17                         ` Chen Gang
2013-07-25  7:33                           ` Benjamin Herrenschmidt
2013-07-25  7:59                             ` Chen Gang
2013-07-25  8:06                               ` Benjamin Herrenschmidt
2013-07-25  8:22                                 ` Chen Gang
2013-07-25  8:28                                   ` Benjamin Herrenschmidt
2013-07-25  8:36                                     ` Chen Gang

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