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| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-23 10:06:08 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-23 10:06:08 -0400 |
| commit | 69604fe76e58c9d195e48b41d019b07fc27ce9d7 (patch) | |
| tree | c9d1e7cfe406a8f168c3aceaf989eea0275d3045 /include/linux/dmar.h | |
| parent | 50b2d49bafa16e6311ab2da82f5aafc5f9ada99b (diff) | |
| parent | 189e7d876e48d7c791fe1c9c01516f70f5621a9f (diff) | |
Merge tag 'kvm-s390-master-6.0-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
More pci fixes
Fix for a code analyser warning
Diffstat (limited to 'include/linux/dmar.h')
| -rw-r--r-- | include/linux/dmar.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/dmar.h b/include/linux/dmar.h index d81a51978d01..8917a32173c4 100644 --- a/include/linux/dmar.h +++ b/include/linux/dmar.h @@ -65,6 +65,7 @@ struct dmar_pci_notify_info { extern struct rw_semaphore dmar_global_lock; extern struct list_head dmar_drhd_units; +extern int intel_iommu_enabled; #define for_each_drhd_unit(drhd) \ list_for_each_entry_rcu(drhd, &dmar_drhd_units, list, \ @@ -88,7 +89,8 @@ extern struct list_head dmar_drhd_units; static inline bool dmar_rcu_check(void) { return rwsem_is_locked(&dmar_global_lock) || - system_state == SYSTEM_BOOTING; + system_state == SYSTEM_BOOTING || + (IS_ENABLED(CONFIG_INTEL_IOMMU) && !intel_iommu_enabled); } #define dmar_rcu_dereference(p) rcu_dereference_check((p), dmar_rcu_check()) |