Messages in this thread | | | From | Rob Herring <> | Date | Thu, 9 Feb 2023 09:17:45 -0600 | Subject | Re: [PATCH v5 2/5] Drivers: hv: allow non ACPI compilation for hv_is_hibernation_supported |
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On Thu, Feb 9, 2023 at 6:15 AM Saurabh Sengar <ssengar@linux.microsoft.com> wrote: > > acpi_sleep_state_supported() currently is defined only when > CONFIG_ACPI=y. For future work to enable device tree builds, put this > function under #ifdef CONFIG_ACPI. Otherwise, return 'false' from > hv_is_hibernation_supported() as Hyper-V guest configs using device > tree don't support hibernation. > > Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com> > Reviewed-by: Michael Kelley <mikelley@microsoft.com> > --- > drivers/hv/hv_common.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c > index 52a6f89ccdbd..370ec20d1993 100644 > --- a/drivers/hv/hv_common.c > +++ b/drivers/hv/hv_common.c > @@ -234,7 +234,11 @@ EXPORT_SYMBOL_GPL(hv_setup_dma_ops); > > bool hv_is_hibernation_supported(void) > { > +#ifdef CONFIG_ACPI > return !hv_root_partition && acpi_sleep_state_supported(ACPI_STATE_S4);
Rework the acpi_bus.h header so that this is defined for !CONFIG_ACPI:
static inline bool acpi_sleep_state_supported(u8 sleep_state) { return false; }
Then you don't need this change here. That or using IS_ENABLED() is strongly preferred over #ifdefs.
Rob
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