On Monday, February 18, 2013 05:28:19 PM Lars-Peter Clausen wrote:
> On 02/10/2013 06:58 AM, Len Brown wrote:
> > From: Len Brown <len.br...@intel.com>
> >
> > pm_idle is dead code on blackfin.
> >
> > Signed-off-by: Len Brown <len.br...@intel.com>
> > Cc: uclinux-dist-devel@blackfin.uclinux.org
> > ---
> > arch/blackfin/kernel/process.c | 7 -------
> > 1 file changed, 7 deletions(-)
> >
> > diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
> > index 3e16ad9..8061426 100644
> > --- a/arch/blackfin/kernel/process.c
> > +++ b/arch/blackfin/kernel/process.c
> > @@ -39,12 +39,6 @@ int nr_l1stack_tasks;
> > void *l1_stack_base;
> > unsigned long l1_stack_len;
> >
> > -/*
> > - * Powermanagement idle function, if any..
> > - */
> > -void (*pm_idle)(void) = NULL;
> > -EXPORT_SYMBOL(pm_idle);
> > -
> > void (*pm_power_off)(void) = NULL;
> > EXPORT_SYMBOL(pm_power_off);
> >
> > @@ -81,7 +75,6 @@ void cpu_idle(void)
> > {
> > /* endless idle loop with no priority at all */
> > while (1) {
> > - void (*idle)(void) = pm_idle;
>
> Hi,
>
> This results in the following error:
>
> arch/blackfin/kernel/process.c: In function ‘cpu_idle’:
> arch/blackfin/kernel/process.c:83: error: ‘idle’ undeclared (first use in
> this function)
> arch/blackfin/kernel/process.c:83: error: (Each undeclared identifier is
> reported only once
> arch/blackfin/kernel/process.c:83: error: for each function it appears in.)
> arch/blackfin/kernel/process.c:88: error: implicit declaration of function
> ‘idle’
>
>
> This change on top of your patch, fixes it.
Lars, I need your sign-off for the patch below. May I add it?
Rafael
> diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
> index 8061426..9782c03 100644
> --- a/arch/blackfin/kernel/process.c
> +++ b/arch/blackfin/kernel/process.c
> @@ -80,12 +80,10 @@ void cpu_idle(void)
> if (cpu_is_offline(smp_processor_id()))
> cpu_die();
> #endif
> - if (!idle)
> - idle = default_idle;
> tick_nohz_idle_enter();
> rcu_idle_enter();
> while (!need_resched())
> - idle();
> + default_idle();
> rcu_idle_exit();
> tick_nohz_idle_exit();
> preempt_enable_no_resched();
>
>
> Otherwise the patch seems to work fine.
>
> - Lars
> --
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--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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