linux-kernel - [tip:x86/apic] iommu: dmar: Provide helper to copy shared irte fields

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Message-ID: <tip-bf56027ff4d9e75bf668ae990fe6204d00a23002@git.kernel.org>
Date:	Fri, 12 Jun 2015 02:49:11 -0700
From:	tip-bot for Thomas Gleixner <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...nel.org, hpa@...or.com, linux-kernel@...r.kernel.org,
	tglx@...utronix.de
Subject: [tip:x86/apic] iommu: dmar:
  Provide helper to copy shared irte fields

Commit-ID:  bf56027ff4d9e75bf668ae990fe6204d00a23002
Gitweb:     http://git.kernel.org/tip/bf56027ff4d9e75bf668ae990fe6204d00a23002
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Tue, 9 Jun 2015 13:20:30 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 12 Jun 2015 11:33:52 +0200

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@...utronix.de>
Cc: jiang.liu@...ux.intel.com
Cc: iommu@...ts.linux-foundation.org
Cc: joro@...tes.org
Cc: dwmw2@...radead.org
Link: http://lkml.kernel.org/r/1433827237-3382-4-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 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
 
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