Groups > linux.kernel > #1205631

[PATCH 04/31] x86/pci-nommu: handle page-less SG entries

From	Christoph Hellwig <hch@lst.de>
Newsgroups	linux.kernel
Subject	[PATCH 04/31] x86/pci-nommu: handle page-less SG entries
Date	2015-08-12 09:20 +0200
Message-ID	<pWyum-5LM-9@gated-at.bofh.it> (permalink)
References	<pWykF-5Aj-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/x86/kernel/pci-nommu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index da15918..a218059 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -63,7 +63,6 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
 	WARN_ON(nents == 0 || sg[0].length == 0);
 
 	for_each_sg(sg, s, nents, i) {
-		BUG_ON(!sg_page(s));
 		s->dma_address = sg_phys(s);
 		if (!check_addr("map_sg", hwdev, s->dma_address, s->length))
 			return 0;
-- 
1.9.1

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[PATCH 04/31] x86/pci-nommu: handle page-less SG entries Christoph Hellwig <hch@lst.de> - 2015-08-12 09:20 +0200

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