[PATCH v5 2/5] Drivers: hv: allow non ACPI compilation for hv_is_hibernation_supported

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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@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
---
 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);
+#else
+	return false;
+#endif
 }
 EXPORT_SYMBOL_GPL(hv_is_hibernation_supported);
 
-- 
2.34.1




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