iommu: dmar: Provide helper to copy shared irte fields
Instead of open coding, provide a helper function to copy the shared
irte fields.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: jiang.liu@linux.intel.com
Cc: iommu@lists.linux-foundation.org
Cc: joro@8bytes.org
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/1433827237-3382-4-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 0dbcabc..e9bc929 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -249,6 +249,18 @@
};
};
+static inline void dmar_copy_shared_irte(struct irte *dst, struct irte *src)
+{
+ dst->present = src->present;
+ dst->fpd = src->fpd;
+ dst->avail = src->avail;
+ dst->pst = src->pst;
+ dst->vector = src->vector;
+ dst->sid = src->sid;
+ dst->sq = src->sq;
+ dst->svt = src->svt;
+}
+
#define PDA_LOW_BIT 26
#define PDA_HIGH_BIT 32