Thread (65 messages) 65 messages, 8 authors, 2021-08-03
STALE1767d
Revisions (4)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]
  4. v4 [diff vs current]

[PATCH v2 07/24] iommu/mtk: Drop IOVA cookie management

From: Robin Murphy <robin.murphy@arm.com>
Date: 2021-07-28 15:59:24
Also in: linux-iommu, lkml
Subsystem: iommu subsystem, mediatek iommu driver, the rest · Maintainers: Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds

The core code bakes its own cookies now.

CC: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 drivers/iommu/mtk_iommu.c | 6 ------
 1 file changed, 6 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 6f7c69688ce2..e39a6d1da28d 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -441,17 +441,11 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
 	if (!dom)
 		return NULL;
 
-	if (iommu_get_dma_cookie(&dom->domain)) {
-		kfree(dom);
-		return NULL;
-	}
-
 	return &dom->domain;
 }
 
 static void mtk_iommu_domain_free(struct iommu_domain *domain)
 {
-	iommu_put_dma_cookie(domain);
 	kfree(to_mtk_domain(domain));
 }
 
-- 
2.25.1


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