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>,
Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: [patch 11/18] iommu/of: Adjust system_state check
Date: Sun, 14 May 2017 20:27:27 +0200 [thread overview]
Message-ID: <20170514183613.331455858@linutronix.de> (raw)
In-Reply-To: 20170514182716.347236777@linutronix.de
[-- Attachment #1: iommu-of--Adjust-system_state-check.patch --]
[-- Type: text/plain, Size: 939 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>
Cc: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@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);
next prev parent reply other threads:[~2017-05-14 18:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170514182716.347236777@linutronix.de>
2017-05-14 18:27 ` [patch 10/18] iommu/vt-d: Adjust system_state checks Thomas Gleixner
2017-05-15 14:42 ` Joerg Roedel
2017-05-14 18:27 ` Thomas Gleixner [this message]
[not found] ` <20170514183613.331455858-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
2017-05-15 10:45 ` [patch 11/18] iommu/of: Adjust system_state check Robin Murphy
2017-05-15 14:42 ` Joerg Roedel
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