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From: FUJITA Tomonori on 18 Feb 2010 23:20
On Wed, 17 Feb 2010 10:03:42 +0000
David Howells <dhowells(a)redhat.com> wrote:

> FUJITA Tomonori <fujita.tomonori(a)lab.ntt.co.jp> wrote:
>
> > pci_dma_sync_single was obsoleted long ago.
> >
> > All the comments are generic, not architecture specific, simply
> > describes some of the DMA-API (and frv has the same comments in three
> > files). Documentation/DMA-API.txt have more detailed descriptions.
> >
> > This removes the above obsolete and unnecessary DMA API
> > comments. Let's describe the DMA API in only
> > Documentation/DMA-API.txt.
>
> I'm okay with this, _provided_ you put a pointer in a banner comment at the
> top of the file to Documentation/DMA-API.txt.

How about this?

=
From: FUJITA Tomonori <fujita.tomonori(a)lab.ntt.co.jp>
Subject: [PATCH] frv: add a pointer to Documentation/DMA-API.txt

Signed-off-by: FUJITA Tomonori <fujita.tomonori(a)lab.ntt.co.jp>
---
arch/frv/include/asm/dma-mapping.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 20cca40..6af5d83 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -7,6 +7,11 @@
#include <asm/scatterlist.h>
#include <asm/io.h>

+/*
+ * See Documentation/DMA-API.txt for the description of how the
+ * following DMA API should work.
+ */
+
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)

--
1.6.5

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