Re: [PATCH 07/18] x86 idle: clarify AMD erratum 400 workaround

From: Len Brown
Date: Sat Apr 02 2011 - 15:20:23 EST


> > -static cpumask_var_t c1e_mask;
> > +static cpumask_var_t amd_e400_mask;
>
> Actually, the correct name should be IMHO
>
> amd_e400_c1e_mask

okay.

> > - c1e_detected = true;
> > + amd_e400_detected = true;
>
> Hmm, c1e_detected is still the correct name since those two bits in
> the INT_PENDING MSR mean simply that the system can either generate an
> IO read or an SMI to enter C1E irrespective of E400. So I'd leave it
> c1e_detected.

We don't run the code that sets this flag unless
cpu_has_amd_erratum(amd_erratum_400)

so how about this?:

- c1e_detected
+ amd_e400_c1e_detected

> > -void __init init_c1e_mask(void)
> > +void __init init_amd_e400_mask(void)
>
> Same here, init_amd_e400_c1e_mask.

done.

thanks,
Len Brown, Intel Open Source Technology Center

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