On Thursday 23 July 2009 04:11:10 Zhang Rui wrote: > when acpi=off, powernow-k8 driver is still loaded, and fails with > a firmware bug warning message. > http://bugzilla.kernel.org/show_bug.cgi?id=13695#c5 Powernow-k8 can theoretically fetch info from a non-acpi table for specific 1 core systems, but I agree that in nearly all cases this won't work anyway. And acpi should still be switched on. Mark should get a chance to look at this before it's submitted, though. > this is misleading, > we should not load powernow-k8 driver when acpi=off. > http://bugzilla.kernel.org/show_bug.cgi?id=13695 > > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> Reviewed-by: Thomas Renninger <trenn@xxxxxxx> > Tested-by: David Santamaría Rogado <howl.nsp@xxxxxxxxx> > --- > arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 3 +++ > 1 file changed, 3 insertions(+) > > Index: linux-2.6/arch/x86/kernel/cpu/cpufreq/powernow-k8.c > =================================================================== > --- linux-2.6.orig/arch/x86/kernel/cpu/cpufreq/powernow-k8.c > +++ linux-2.6/arch/x86/kernel/cpu/cpufreq/powernow-k8.c > @@ -1436,6 +1436,9 @@ static int __cpuinit powernowk8_init(voi > { > unsigned int i, supported_cpus = 0; > > + if (acpi_disabled) > + return 0; > + > for_each_online_cpu(i) { > int rc; > smp_call_function_single(i, check_supported_cpu, &rc, 1); > > > -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
