On 13 December 2010 01:20, <[email protected]> wrote: > --- /dev/null > +++ b/arch/arm/mach-msm/hotplug.c [...] > +static inline void platform_do_lowpower(unsigned int cpu) > +{ > + /* Just enter wfe for now. */ > + for (;;) { > + asm("wfe"); > + if (pen_release == cpu) { > + /* > + * OK, proper wakeup, we're done > + */ > + break; > + } > + smp_rmb();
Do you need some barrier after wfe? -- Catalin
