linux-kernel - [PATCH 17/28] x86: adjust dma_free

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Message-Id: <12076717842335-git-send-email-gcosta@redhat.com>
Date:	Tue,  8 Apr 2008 13:20:59 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, mingo@...e.hu,
	tglx@...utronix.de, kvm-devel@...ts.sourceforge.net,
	amit.shah@...ranet.com, avi@...ranet.com,
	Glauber Costa <gcosta@...hat.com>
Subject: [PATCH 17/28] x86: adjust dma_free_coherent for i386

We call unmap_single, if available.

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/pci-dma_32.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/pci-dma_32.c b/arch/x86/kernel/pci-dma_32.c
index 78c7640..49166a4 100644
--- a/arch/x86/kernel/pci-dma_32.c
+++ b/arch/x86/kernel/pci-dma_32.c
@@ -84,6 +84,8 @@ void dma_free_coherent(struct device *dev, size_t size,
 	WARN_ON(irqs_disabled());	/* for portability */
 	if (dma_release_coherent(dev, order, vaddr))
 		return;
+	if (dma_ops->unmap_single)
+		dma_ops->unmap_single(dev, dma_handle, size, 0);
 	free_pages((unsigned long)vaddr, order);
 }
 EXPORT_SYMBOL(dma_free_coherent);
-- 
1.5.0.6

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