Re: [PATCH 08/44] kernel: Move pm_power_off to common code

[Guenter Roeck <linux@xxxxxxxxxxxx>]

On 10/09/2014 03:38 AM, Pavel Machek wrote:
> Hi!
>
> > @@ -184,6 +179,8 @@ machine_halt(void)
> >   void
> >   machine_power_off(void)
> >   {
> > +	do_kernel_poweroff();
> > +
>
> poweroff -> power_off for consistency.
Dunno; matter of personal preference. I started with that, but ultimately went
with poweroff to distinguish poweroff handler functions from existing code,
specifically kernel_power_off().

Does anyone else have an opinion ?

> > index c4f50a3..1da27d1 100644
> > --- a/arch/blackfin/kernel/reboot.c
> > +++ b/arch/blackfin/kernel/reboot.c
> > @@ -106,6 +107,7 @@ void machine_halt(void)
> >   __attribute__((weak))
> >   void native_machine_power_off(void)
> >   {
> > +	do_kernel_poweroff();
> >   	idle_with_irq_disabled();
> >   }
>
> So here we handle do_kernel_poweroff() returning,
>
> > diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
> > index b78498e..eaafad0 100644
> > --- a/arch/cris/kernel/process.c
> > +++ b/arch/cris/kernel/process.c
> > @@ -60,6 +57,7 @@ void machine_halt(void)
> >
> >   void machine_power_off(void)
> >   {
> > +	do_kernel_poweroff();
> >   }
>
>
> Here we don't.
>
> > diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
> > index 5d40aeb77..a673725 100644
> > --- a/arch/frv/kernel/process.c
> > +++ b/arch/frv/kernel/process.c
> > @@ -107,6 +104,8 @@ void machine_power_off(void)
> >   	gdbstub_exit(0);
> >   #endif
> >
> > +	do_kernel_poweroff();
> > +
> >   	for (;;);
> >   }
>
> And here we do.
>
> What is right?
> 								Pavel

Up to the architecture maintainer to decide. My goal was to not change
existing behavior if no poweroff handler is registered.

Guenter