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From: Thomas Gleixner <tglx@linutronix.de>
To: Ravikiran G Thirumalai <kiran@scalex86.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
	Ingo Molnar <mingo@elte.hu>, Yinghai Lu <yinghai@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	shai@scalex86.org
Subject: Re: [PATCH] x86: don't compile vsmp_64 for 32bit
Date: Thu, 26 Mar 2009 00:36:11 +0100 (CET)	[thread overview]
Message-ID: <alpine.LFD.2.00.0903260034200.3397@localhost.localdomain> (raw)
In-Reply-To: <20090325232921.GL7278@localdomain>

On Wed, 25 Mar 2009, Ravikiran G Thirumalai wrote:
> > Sure, but it would be cleaner if the whole file were controlled by 
> > CONFIG_X86_VSMP.  is_vsmp_box() is already defined as const inline 
> > returning 0 if !CONFIG_X86_VSMP.
> >
> 
> The point in this thread was, is_vsmp_box() needs to be meaningful even when
> CONFIG_X86_VSMP is not on.  This is needed because is_vsmp_box() is used to
> determine if the platform has reliable tscs.

Did you even read what Jeremy wrote or bother to look at the code in
arch/x86/include/asm/apic.h ?

#ifdef CONFIG_X86_VSMP
extern int is_vsmp_box(void);
#else
static inline int is_vsmp_box(void)
{
        return 0;
}
#endif

So the .c file is completely useless if CONFIG_X86_VSMP=n.

Thanks,

	tglx

  reply	other threads:[~2009-03-25 23:38 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-26  5:20 [PATCH] x86: don't compile vsmp_64 for 32bit Yinghai Lu
2009-02-26  5:40 ` Ingo Molnar
2009-02-26  6:48 ` Ravikiran G Thirumalai
2009-02-26  8:39   ` Yinghai Lu
2009-02-26 11:44   ` Ingo Molnar
2009-02-27  0:17     ` Ravikiran G Thirumalai
2009-02-28  9:44       ` Ingo Molnar
2009-03-02 23:51         ` Ravikiran G Thirumalai
2009-03-03  0:08           ` Yinghai Lu
2009-03-22 12:48           ` Ingo Molnar
2009-03-24  6:14             ` Ravikiran G Thirumalai
2009-03-24  9:10               ` Ingo Molnar
2009-03-25 18:51                 ` Ravikiran G Thirumalai
2009-03-25 22:16                   ` Jeremy Fitzhardinge
2009-03-25 22:36                     ` Ravikiran G Thirumalai
2009-03-25 23:15                       ` Jeremy Fitzhardinge
2009-03-25 23:29                         ` Ravikiran G Thirumalai
2009-03-25 23:36                           ` Thomas Gleixner [this message]
2009-03-26  0:11                             ` Ravikiran G Thirumalai
2009-03-25 23:58                           ` Jeremy Fitzhardinge
2009-03-26  0:31                             ` Ravikiran G Thirumalai
2009-03-26  9:11                               ` Ingo Molnar
2009-03-26 18:17                                 ` Ravikiran G Thirumalai
2009-03-26  7:57               ` [tip:x86/apic] Revert "x86: don't compile vsmp_64 for 32bit" Ravikiran G Thirumalai

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