linux-kernel - [PATCH 21/22] iommu/amd: Remove unused fields from struct dma_ops

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Date:	Thu, 28 May 2015 18:41:44 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	iommu@...ts.linux-foundation.org
Cc:	Will Deacon <will.deacon@....com>, Kukjin Kim <kgene@...nel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Hiroshi Doyu <hdoyu@...dia.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Robin Murphy <robin.murphy@....com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Oded Gabbay <oded.gabbay@...il.com>, joro@...tes.org,
	jroedel@...e.de, linux-kernel@...r.kernel.org
Subject: [PATCH 21/22] iommu/amd: Remove unused fields from struct dma_ops_domain

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

The list_head and target_dev members are not used anymore.
Remove them.

Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
 drivers/iommu/amd_iommu.c       | 1 -
 drivers/iommu/amd_iommu_types.h | 8 --------
 2 files changed, 9 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 978741b..6e73fa1 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1886,7 +1886,6 @@ static struct dma_ops_domain *dma_ops_domain_alloc(void)
 		goto free_dma_dom;
 
 	dma_dom->need_flush = false;
-	dma_dom->target_dev = 0xffff;
 
 	add_domain_to_list(&dma_dom->domain);
 
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index fe796cf..bb56560 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -446,8 +446,6 @@ struct aperture_range {
  * Data container for a dma_ops specific protection domain
  */
 struct dma_ops_domain {
-	struct list_head list;
-
 	/* generic protection domain information */
 	struct protection_domain domain;
 
@@ -462,12 +460,6 @@ struct dma_ops_domain {
 
 	/* This will be set to true when TLB needs to be flushed */
 	bool need_flush;
-
-	/*
-	 * if this is a preallocated domain, keep the device for which it was
-	 * preallocated in this variable
-	 */
-	u16 target_dev;
 };
 
 /*
-- 
1.9.1

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