In preparation for registering device-dax instances for accessing EFI specific-purpose memory, arrange for the HMAT registration to occur later in the init process. Critically HMAT initialization needs to occur after e820__reserve_resources_late() which is the point at which the iomem resource tree is populated with "Application Reserved" (IORES_DESC_APPLICATION_RESERVED). e820__reserve_resources_late() happens at subsys_initcall time. Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx> Cc: Len Brown <lenb@xxxxxxxxxx> Cc: Keith Busch <keith.busch@xxxxxxxxx> Cc: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> --- drivers/acpi/hmat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/hmat.c b/drivers/acpi/hmat.c index 2c220cb7b620..1d329c4af3bf 100644 --- a/drivers/acpi/hmat.c +++ b/drivers/acpi/hmat.c @@ -671,4 +671,4 @@ static __init int hmat_init(void) acpi_put_table(tbl); return 0; } -subsys_initcall(hmat_init); +device_initcall(hmat_init);
