On Wed, Jul 23, 2014 at 08:07:18PM +0200, Borislav Petkov wrote:
> Date: Wed, 23 Jul 2014 20:07:18 +0200
> From: Borislav Petkov <[email protected]>
> To: "Chen, Gong" <[email protected]>
> Cc: [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected], [email protected],
>  [email protected], [email protected]
> Subject: Re: [RFC PATCH v1 12/70] x86, pci, amd_bus: _FROZEN Cleanup
> User-Agent: Mutt/1.5.23 (2014-03-12)
> 
> On Tue, Jul 22, 2014 at 09:58:48PM -0400, Chen, Gong wrote:
> > Remove XXX_FROZEN state from x86/pci/amd_bus.
> > 
> > Signed-off-by: Chen, Gong <[email protected]>
> > ---
> >  arch/x86/pci/amd_bus.c | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> > 
> > diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
> > index c20d2cc..30f0fca9 100644
> > --- a/arch/x86/pci/amd_bus.c
> > +++ b/arch/x86/pci/amd_bus.c
> > @@ -341,9 +341,8 @@ static int amd_cpu_notify(struct notifier_block *self, 
> > unsigned long action,
> >                       void *hcpu)
> >  {
> >     int cpu = (long)hcpu;
> > -   switch (action) {
> > +   switch (action & ~CPU_TASKS_FROZEN) {
> >     case CPU_ONLINE:
> > -   case CPU_ONLINE_FROZEN:
> >             smp_call_function_single(cpu, enable_pci_io_ecs, NULL, 0);
> >             break;
> >     default:
> 
> Or you can kill all the switch-case gunk and make it even more readable:
> 
But what if new action is added? We have to change it back. If you prefer
to use that style I can update in next version.

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