On Sun, Feb 13, 2011 at 01:59:54PM -0800, Colin Cross wrote: > On Fri, Feb 11, 2011 at 8:19 AM, Russell King - ARM Linux > <[email protected]> wrote: > > Allow the generic sleep code to be used with SMP CPU idle by storing > > N CPU stack pointers rather than just one. > > > > Signed-off-by: Russell King <[email protected]> > > --- > > arch/arm/kernel/sleep.S | 26 +++++++++++++++++++++++++- > > 1 files changed, 25 insertions(+), 1 deletions(-) > > > > diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S > > index 9f106fa..e10618f 100644 > > --- a/arch/arm/kernel/sleep.S > > +++ b/arch/arm/kernel/sleep.S > > <snip> > > > @@ -107,4 +129,6 @@ ENTRY(cpu_resume) > > ENDPROC(cpu_resume) > > > > sleep_save_sp: > > - .word 0 @ preserve stack phys ptr > > here > > + .rept CONFIG_NR_CPUS > > + .long 0 @ preserve stack phys ptr > > here > > + .endr > > This doesn't compile on CONFIG_SMP=n, CONFIG_NR_CPUS is undefined. > Including linux/threads.h will provide a default definition.
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