amd-iommu: introduce for_each_iommu* macros
This patch introduces the for_each_iommu and for_each_iommu_safe macros
to simplify the developers life when having to iterate over all AMD
IOMMUs in the system.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index 95c8cd9..cf5ef17 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -196,6 +196,14 @@
domain for an IOMMU */
/*
+ * Make iterating over all IOMMUs easier
+ */
+#define for_each_iommu(iommu) \
+ list_for_each_entry((iommu), &amd_iommu_list, list)
+#define for_each_iommu_safe(iommu, next) \
+ list_for_each_entry_safe((iommu), (next), &amd_iommu_list, list)
+
+/*
* This structure contains generic data for IOMMU protection domains
* independent of their use.
*/