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From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: <xen-devel@lists.xensource.com>
Cc: <konrad.wilk@oracle.com>, <Stefano.Stabellini@eu.citrix.com>,
	<david.vrabel@citrix.com>, <linux-kernel@vger.kernel.org>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	<stable@vger.kernel.org>
Subject: [PATCH 2/2] swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single
Date: Fri, 21 Nov 2014 17:00:20 +0000	[thread overview]
Message-ID: <1416589220-7720-2-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1411211657430.2675@kaball.uk.xensource.com>

Need to pass the pointer within the swiotlb internal buffer to the
swiotlb library, that in the case of xen_unmap_single is dev_addr, not
paddr.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: konrad.wilk@oracle.com
CC: stable@vger.kernel.org
---
 drivers/xen/swiotlb-xen.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 810ad41..5ea1e3c 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -451,7 +451,7 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
 
 	/* NOTE: We use dev_addr here, not paddr! */
 	if (is_xen_swiotlb_buffer(dev_addr)) {
-		swiotlb_tbl_unmap_single(hwdev, paddr, size, dir);
+		swiotlb_tbl_unmap_single(hwdev, dev_addr, size, dir);
 		return;
 	}
 
-- 
1.7.10.4


  parent reply	other threads:[~2014-11-21 17:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-21 17:00 [PATCH 0/2] small swiotlb-xen fixes Stefano Stabellini
2014-11-21 17:00 ` [PATCH 1/2] swiotlb-xen: call xen_dma_sync_single_for_device when appropriate Stefano Stabellini
2014-11-21 17:00 ` Stefano Stabellini [this message]
2015-01-26 10:53   ` [Xen-devel] [PATCH 2/2] swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single Ian Campbell
2015-01-26 11:10     ` Luis Henriques
2015-01-26 13:39     ` Jiri Slaby
2014-11-21 17:26 ` [PATCH 0/2] small swiotlb-xen fixes Konrad Rzeszutek Wilk
2014-11-24 11:57   ` Stefano Stabellini

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