To enable smp_processor_id() and might_sleep() debug checks earlier, it's required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING. Adjust the system_state check in of_iommu_driver_present() to handle the extra states. Signed-off-by: Thomas Gleixner Acked-by: Joerg Roedel Acked-by: Robin Murphy Cc: iommu@lists.linux-foundation.org --- drivers/iommu/of_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -103,7 +103,7 @@ static bool of_iommu_driver_present(stru * it never will be. We don't want to defer indefinitely, nor attempt * to dereference __iommu_of_table after it's been freed. */ - if (system_state > SYSTEM_BOOTING) + if (system_state >= SYSTEM_RUNNING) return false; return of_match_node(&__iommu_of_table, np);