[v10 03/10] iommu: dmar: Provide helper to copy shared irte fields

From: Feng Wu
Date: Tue Jun 09 2015 - 01:30:51 EST


From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Instead of open coding, provide a helper function to copy the shared
irte fields.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
include/linux/dmar.h | 12 ++++++++++++
1 file changed, 12 insertions(+)

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 @@ struct irte {
};
};

+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

--
2.1.0

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