linux-kernel - [PATCH 1/4] iommu/vt-d: Remove iommu_attach_domain_with

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Date:	Thu, 11 Jun 2015 15:47:40 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	iommu@...ts.linux-foundation.org
Cc:	David Woodhouse <dwmw2@...radead.org>, zhen-hual@...com,
	bhe@...hat.com, linux-kernel@...r.kernel.org,
	Joerg Roedel <jroedel@...e.de>
Subject: [PATCH 1/4] iommu/vt-d: Remove iommu_attach_domain_with_id()

From: Joerg Roedel <jroedel@...e.de>

We don't re-use domain-ids from the old kernel, so this
function is not needed anymore. Remove it.

Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
 drivers/iommu/intel-iommu.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 58abddb..b0fd5f2 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1648,16 +1648,6 @@ static int iommu_attach_domain(struct dmar_domain *domain,
 	return num;
 }
 
-static int iommu_attach_domain_with_id(struct dmar_domain *domain,
-			       struct intel_iommu *iommu,
-			       int domain_number)
-{
-	if (domain_number >= 0)
-		return domain_number;
-
-	return iommu_attach_domain(domain, iommu);
-}
-
 static int iommu_attach_vm_domain(struct dmar_domain *domain,
 				  struct intel_iommu *iommu)
 {
@@ -2326,7 +2316,6 @@ static struct dmar_domain *get_domain_for_dev(struct device *dev, int gaw)
 	u16 dma_alias;
 	unsigned long flags;
 	u8 bus, devfn;
-	int did = -1;   /* Default to "no domain_id supplied" */
 
 	domain = find_domain(dev);
 	if (domain)
@@ -2361,7 +2350,7 @@ static struct dmar_domain *get_domain_for_dev(struct device *dev, int gaw)
 	if (!domain)
 		return NULL;
 
-	domain->id = iommu_attach_domain_with_id(domain, iommu, did);
+	domain->id = iommu_attach_domain(domain, iommu);
 	if (domain->id < 0) {
 		free_domain_mem(domain);
 		return NULL;
-- 
1.9.1

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