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Date: Tue, 23 May 2017 01:52:53 -0700 From: tip-bot for Thomas Gleixner <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: mark.rutland@....com, joro@...tes.org, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, gregkh@...uxfoundation.org, tglx@...utronix.de, mingo@...nel.org, dwmw2@...radead.org, hpa@...or.com, rostedt@...dmis.org, peterz@...radead.org Subject: [tip:sched/core] iommu/vt-d: Adjust system_state checks Commit-ID: b608fe356fe8328665445a26ec75dfac918c8c5d Gitweb: http://git.kernel.org/tip/b608fe356fe8328665445a26ec75dfac918c8c5d Author: Thomas Gleixner <tglx@...utronix.de> AuthorDate: Tue, 16 May 2017 20:42:41 +0200 Committer: Ingo Molnar <mingo@...nel.org> CommitDate: Tue, 23 May 2017 10:01:36 +0200 iommu/vt-d: Adjust system_state checks 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 checks in dmar_parse_one_atsr() and dmar_iommu_notify_scope_dev() to handle the extra states. Signed-off-by: Thomas Gleixner <tglx@...utronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org> Acked-by: Joerg Roedel <joro@...tes.org> Cc: David Woodhouse <dwmw2@...radead.org> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Mark Rutland <mark.rutland@....com> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Steven Rostedt <rostedt@...dmis.org> Cc: iommu@...ts.linux-foundation.org Link: http://lkml.kernel.org/r/20170516184735.712365947@linutronix.de Signed-off-by: Ingo Molnar <mingo@...nel.org> --- drivers/iommu/intel-iommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index fc2765c..8500ded 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4315,7 +4315,7 @@ int dmar_parse_one_atsr(struct acpi_dmar_header *hdr, void *arg) struct acpi_dmar_atsr *atsr; struct dmar_atsr_unit *atsru; - if (system_state != SYSTEM_BOOTING && !intel_iommu_enabled) + if (system_state >= SYSTEM_RUNNING && !intel_iommu_enabled) return 0; atsr = container_of(hdr, struct acpi_dmar_atsr, header); @@ -4565,7 +4565,7 @@ int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info) struct acpi_dmar_atsr *atsr; struct acpi_dmar_reserved_memory *rmrr; - if (!intel_iommu_enabled && system_state != SYSTEM_BOOTING) + if (!intel_iommu_enabled && system_state >= SYSTEM_RUNNING) return 0; list_for_each_entry(rmrru, &dmar_rmrr_units, list) {
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