ACPI: call acpi_scan_init() explicitly rather than as initcall

This patch makes acpi_init() call acpi_scan_init() directly.

Previously, both acpi_init() and acpi_scan_init() were subsys_initcalls,
and acpi_init() was called first based on the link order from the
makefile (bus.o before scan.o).

acpi_scan_init() registers the ACPI bus type, creates the root device,
and enumerates fixed-feature and namespace devices.  All of this must
be done after acpi_init(), and it's better to call acpi_scan_init()
explicitly rather than rely on the link ordering.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 4aee4a236fc9..28042c0f2fff 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -1,5 +1,7 @@
 /* For use by Linux/ACPI infrastructure, not drivers */
 
+int acpi_scan_init(void);
+
 /* --------------------------------------------------------------------------
                                   Power Resource
    -------------------------------------------------------------------------- */