Thread (53 messages) 53 messages, 13 authors, 2015-08-14

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  1. Posted Christoph Hellwig <hch@lst.de>

[PATCH 30/31] intel-iommu: handle page-less SG entries

From: Christoph Hellwig <hch@lst.de>
Date: 2015-08-12 07:10:57
Also in: linux-arch, linux-media, linux-mips, linux-s390, linuxppc-dev, lkml, sparclinux
Subsystem: iommu subsystem, the rest · Maintainers: Joerg Roedel, Will Deacon, Linus Torvalds

Just remove a BUG_ON, the code handles them just fine as-is.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/iommu/intel-iommu.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 3541d65..ae10573 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3622,7 +3622,6 @@ static int intel_nontranslate_map_sg(struct device *hddev,
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nelems, i) {
-		BUG_ON(!sg_page(sg));
 		sg->dma_address = sg_phys(sg);
 		sg->dma_length = sg->length;
 	}
-- 
1.9.1
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