On Mon, Sep 15, 2014 at 07:28:24AM +0100, Olof Johansson wrote:
> On Fri, Sep 12, 2014 at 10:00:04PM +0800, Hanjun Guo wrote:
> > See also Documentation/power/runtime_pm.txt, pci=noacpi
> >
> > diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
> > index 9252f72..693da7f 100644
> > --- a/arch/arm64/kernel/acpi.c
> > +++ b/arch/arm64/kernel/acpi.c
> > @@ -67,3 +67,18 @@ void __init acpi_boot_table_init(void)
> > if (acpi_table_init())
> > disable_acpi();
> > }
> > +
> > +static int __init parse_acpi(char *arg)
> > +{
> > + if (!arg)
> > + return -EINVAL;
> > +
> > + /* "acpi=off" disables both ACPI table parsing and interpreter */
> > + if (strcmp(arg, "off") == 0)
> > + disable_acpi();
> > + else
> > + return -EINVAL; /* Core will print when we return error */
>
> For symmetry, you should handle acpi=force here too (i.e. if someone
> disables by default, which I expect we'll ask for when this code is
> first merged).
Does this mean you want another Kconfig option - ACPI_DEFAULT_OFF (which
would be set by default)?
--
Catalin
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