[patch V2 11/17] iommu/of: Adjust system_state check

Thomas Gleixner
2017-05-16T18:56:45Z

[-- Attachment #1: iommu-of--Adjust-system_state-check.patch --]
[-- Type: text/plain, Size: 902 bytes --]

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 <tglx@linutronix.de>
Acked-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
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);