linux-kernel - [PATCH] x86/pci: sta2x11: fix a compiler warning

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Message-ID: <20120523212227.GA10118@mail.gnudd.com>
Date:	Wed, 23 May 2012 23:22:27 +0200
From:	Alessandro Rubini <rubini@...dd.com>
To:	x86@...nel.org
Cc:	Giancarlo Asnaghi <giancarlo.asnaghi@...com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] x86/pci: sta2x11: fix a compiler warning

alias asnaghi Giancarlo Asnaghi <giancarlo.asnaghi@...com>
dma_ops, because it doesn't want the "attrs" argument.  Add a wrapper,
like other users of the function already do.

Signed-off-by: Alessandro Rubini <rubini@...dd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@...com>
---

Actually, we may instead add "args" to the exported functions in
lib/swiotlb.  This would then remove a few other similar wrappers that
do nothing.  If it's considered useful, I can propose a patch for that.
arch/unicore32/mm/dma-swiotlb.c is especially interesting in this
respect, because it only has the two wrappers.

 arch/x86/pci/sta2x11-fixup.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index e06334b..1ab70dc 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -181,10 +181,17 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
 	return vaddr;
 }
 
+static void sta2x11_swiotlb_free_coherent(struct device *dev, size_t size,
+					  void *vaddr, dma_addr_t dma_addr,
+					  struct dma_attrs *attrs)
+{
+	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
+}
+
 /* We have our own dma_ops: the same as swiotlb but from alloc (above) */
 static struct dma_map_ops sta2x11_dma_ops = {
 	.alloc = sta2x11_swiotlb_alloc_coherent,
-	.free = swiotlb_free_coherent,
+	.free = sta2x11_swiotlb_free_coherent,
 	.map_page = swiotlb_map_page,
 	.unmap_page = swiotlb_unmap_page,
 	.map_sg = swiotlb_map_sg_attrs,
-- 
1.7.7.2
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