Commit b903dfb2 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar

iommu/of: Adjust system_state check

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.
Tested-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: default avatarJoerg Roedel <joro@8bytes.org>
Acked-by: default avatarRobin Murphy <robin.murphy@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: iommu@lists.linux-foundation.org
Link: http://lkml.kernel.org/r/20170516184735.788023442@linutronix.deSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent b608fe35
...@@ -103,7 +103,7 @@ static bool of_iommu_driver_present(struct device_node *np) ...@@ -103,7 +103,7 @@ static bool of_iommu_driver_present(struct device_node *np)
* it never will be. We don't want to defer indefinitely, nor attempt * it never will be. We don't want to defer indefinitely, nor attempt
* to dereference __iommu_of_table after it's been freed. * to dereference __iommu_of_table after it's been freed.
*/ */
if (system_state > SYSTEM_BOOTING) if (system_state >= SYSTEM_RUNNING)
return false; return false;
return of_match_node(&__iommu_of_table, np); return of_match_node(&__iommu_of_table, np);
......
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