Hello Maxime, On Tue, 17 Apr 2018 13:20:38 +0200 Maxime Ripard <maxime.ripard@xxxxxxxxxxx> wrote: > On Mon, Apr 16, 2018 at 11:50:30PM +0200, Mylène Josserand wrote: > > @@ -535,8 +599,12 @@ static int sunxi_mc_smp_cpu_kill(unsigned int l_cpu) > > return !ret; > > } > > > > -static bool sunxi_mc_smp_cpu_can_disable(unsigned int __unused) > > +static bool sunxi_mc_smp_cpu_can_disable(unsigned int cpu) > > { > > + /* CPU0 hotplug not handled for sun8i-a83t */ > > + if (is_sun8i) > > + if (cpu == 0) > > + return false; > > return true; > > I think Chen-Yu told you how to implement the hotplug in the previous > iteration, did you have time to test it? Not yet, I will have a look this evening. Best regards, -- Mylène Josserand, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering http://bootlin.com