linux-kernel - [Patch Part1 V3 06/20] iommu/vt-d, trivial: print correct domain id of static identity domain

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Message-Id: <1388989107-4795-7-git-send-email-jiang.liu@linux.intel.com>
Date:	Mon,  6 Jan 2014 14:18:13 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Joerg Roedel <joro@...tes.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Yinghai Lu <yinghai@...nel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Jiri Kosina <trivial@...nel.org>
Cc:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Ashok Raj <ashok.raj@...el.com>,
	Yijing Wang <wangyijing@...wei.com>,
	Tony Luck <tony.luck@...el.com>,
	iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org
Subject: [Patch Part1 V3 06/20] iommu/vt-d, trivial: print correct domain id of static identity domain

Field si_domain->id is set by iommu_attach_domain(), so we should only
print domain id for static identity domain after calling
iommu_attach_domain(si_domain, iommu), otherwise it's always zero.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
 drivers/iommu/intel-iommu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index b2e73c2..3a0cf5d 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2248,8 +2248,6 @@ static int __init si_domain_init(int hw)
 	if (!si_domain)
 		return -EFAULT;
 
-	pr_debug("Identity mapping domain is domain %d\n", si_domain->id);
-
 	for_each_active_iommu(iommu, drhd) {
 		ret = iommu_attach_domain(si_domain, iommu);
 		if (ret) {
@@ -2264,6 +2262,8 @@ static int __init si_domain_init(int hw)
 	}
 
 	si_domain->flags = DOMAIN_FLAG_STATIC_IDENTITY;
+	pr_debug("IOMMU: identity mapping domain is domain %d\n",
+		 si_domain->id);
 
 	if (hw)
 		return 0;
-- 
1.7.10.4

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