On 2013-11-22 8:41, al.stone@xxxxxxxxxx wrote: > From: Al Stone <al.stone@xxxxxxxxxx> > > Remove the saving and restoring of bus master reload registers in > suspend/resume when in reduced HW mode; according to the spec, no > such registers should exist > > Signed-off-by: Al Stone <al.stone@xxxxxxxxxx> > --- > drivers/acpi/processor_idle.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c > index 597cdab..b18e7ab 100644 > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -202,7 +202,7 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, > > #endif > > -#ifdef CONFIG_PM_SLEEP > +#if (IS_ENABLED(CONFIG_PM_SLEEP) && !IS_ENABLED(CONFIG_ACPI_REDUCED_HARDWARE)) > static u32 saved_bm_rld; > > static int acpi_processor_suspend(void) > @@ -236,7 +236,11 @@ void acpi_processor_syscore_exit(void) > { > unregister_syscore_ops(&acpi_processor_syscore_ops); > } > -#endif /* CONFIG_PM_SLEEP */ I think the code below is not needed, because acpi_processor_suspend/resume() are not used by anywhere else. > +#else > +/* Bus master reload is not supported in reduced HW mode. */ > +static int acpi_processor_suspend(void) { return 0; } > +static void acpi_processor_resume(void) { return; } > +#endif Thanks Hanjun -- 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