Re: [Patch] tsc-disable_A5

[john stultz <johnstul@us.ibm.com>]

On Fri, 2002-06-14 at 11:57, Dave Jones wrote:
> -#ifndef CONFIG_X86_TSC
> +#if !defined(CONFIG_X86_TSC)||defined(CONFIG_TSC_DISABLE)
> +#ifdef CONFIG_TSC_DISABLE
> +static int tsc_disable __initdata = 1;
> +#else /*CONFIG_TSC_DISABLE*/
>  static int tsc_disable __initdata = 0;
> +#endif /*CONFIG_TSC_DISABLE*/
> 
> This looks *really horrible*

True, I agree here. 

> Why not just unset CONFIG_X86_TSC for those machines ?

I was actually hoping for a suggestion like this when I posted this
patch earlier. Can one really just unset CONFIG_ options that have
previously been set? I'd actually prefer this, but doing so generated a
.config that looked like:

CONFIG_X86_TSC=y
...
# CONFIG_X86_TSC is not set

So I assumed CONFIG_X86_TSC would still hold. Am I wrong, or is there
another way to do this?

Thanks
-john