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From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Jaswinder Singh Rajput <jaswinder@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>, Yinghai Lu <yinghai@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	x86 maintainers <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Suresh Siddha <suresh.b.siddha@intel.com>
Subject: Re: [PATCH -tip] x86: Remove useless variable disable_x2apic
Date: Thu, 2 Jul 2009 21:14:23 +0400	[thread overview]
Message-ID: <20090702171423.GD5140@lenovo> (raw)
In-Reply-To: <1246554239.2242.27.camel@jaswinder.satnam>

[Jaswinder Singh Rajput - Thu, Jul 02, 2009 at 10:33:59PM +0530]
| 
| setup_nox2apic() is writing 1 to disable_x2apic but no one is reading it.
| 
| Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
| ---
|  arch/x86/kernel/apic/apic.c |    2 --
|  1 files changed, 0 insertions(+), 2 deletions(-)
| 
| diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
| index 8c7c042..0a1c283 100644
| --- a/arch/x86/kernel/apic/apic.c
| +++ b/arch/x86/kernel/apic/apic.c
| @@ -140,7 +140,6 @@ int x2apic_mode;
|  #ifdef CONFIG_X86_X2APIC
|  /* x2apic enabled before OS handover */
|  static int x2apic_preenabled;
| -static int disable_x2apic;
|  static __init int setup_nox2apic(char *str)
|  {
|  	if (x2apic_enabled()) {
| @@ -149,7 +148,6 @@ static __init int setup_nox2apic(char *str)
|  		return 0;
|  	}
|  
| -	disable_x2apic = 1;
|  	setup_clear_cpu_cap(X86_FEATURE_X2APIC);
|  	return 0;
|  }
| -- 
| 1.6.2.5
|

yes, at moment we use cpu_has_x2apic mostly.
Ack. But lets CC Suresh to be sure. Maybe
there is something in plans.
 
	-- Cyrill

  reply	other threads:[~2009-07-02 17:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-02 17:03 [PATCH -tip] x86: Remove useless variable disable_x2apic Jaswinder Singh Rajput
2009-07-02 17:14 ` Cyrill Gorcunov [this message]
2009-07-03  9:36 ` [tip:x86/urgent] x86: Remove unused " tip-bot for Jaswinder Singh Rajput
2009-07-03 12:45 ` tip-bot for Jaswinder Singh Rajput

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