linux-kernel - Re: [PATCH] x86_64: remove wrong setting about CONSTANT

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Message-ID: <47C3C0D1.1020304@zytor.com>
Date:	Mon, 25 Feb 2008 23:33:37 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yhlu.kernel@...il.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] x86_64: remove wrong setting about CONSTANT_TSC for intel
 cpu

Yinghai Lu wrote:
>>  which is the same. set_cpu_cap() is indeed the cleaner form to do this
>>  so your patch is correct as a cleanup.
> set_cpu_cap is right
> ==
> set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability); ===> is wrong
> should be
> set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
> 
> x86_capability is a array ...
> 

For an array, the & is optional and has no effect.

So they mean the same thing.

	-hpa
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