From: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
To: LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: [patch V2 11/17] iommu/of: Adjust system_state check
Date: Tue, 16 May 2017 20:42:42 +0200 [thread overview]
Message-ID: <20170516184735.788023442@linutronix.de> (raw)
In-Reply-To: 20170516184231.564888231@linutronix.de
[-- Attachment #1: iommu-of--Adjust-system_state-check.patch --]
[-- Type: text/plain, Size: 1012 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-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Acked-by: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
Acked-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.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);
prev parent reply other threads:[~2017-05-16 18:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170516184231.564888231@linutronix.de>
2017-05-16 18:42 ` [patch V2 10/17] iommu/vt-d: Adjust system_state checks Thomas Gleixner
2017-05-16 18:42 ` Thomas Gleixner [this message]
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