linux-kernel - [PATCH] FRV: Move DMA macros to scatterlist.h for consistency.

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Message-ID: <Pine.LNX.4.64.0710290925001.11882@localhost.localdomain>
Date:	Mon, 29 Oct 2007 09:25:10 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...shcourse.ca>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
cc:	dhowells@...hat.com
Subject: [PATCH] FRV:  Move DMA macros to scatterlist.h for consistency.


To be consistent with other architectures, these two DMA macros should
be defined in scatterlist.h as opposed to dma-mapping.h

Signed-off-by: Robert P. J. Day <rpjday@...dspring.com>

---

  if david prefers to handle this because he wants to do something
differently, that's cool.

  not compile-tested as it looks fairly trivial, but i've said *that*
before.


diff --git a/include/asm-frv/dma-mapping.h b/include/asm-frv/dma-mapping.h
index bcb2df6..2e8966c 100644
--- a/include/asm-frv/dma-mapping.h
+++ b/include/asm-frv/dma-mapping.h
@@ -17,16 +17,6 @@ void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle
 void dma_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle);

 /*
- * These macros should be used after a pci_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns, or alternatively stop on the first sg_dma_len(sg) which
- * is 0.
- */
-#define sg_dma_address(sg)	((sg)->dma_address)
-#define sg_dma_len(sg)		((sg)->length)
-
-/*
  * Map a single buffer of the indicated size for DMA in streaming mode.
  * The 32-bit bus address to use is returned.
  *
diff --git a/include/asm-frv/scatterlist.h b/include/asm-frv/scatterlist.h
index 2e7143b..c0c2da0 100644
--- a/include/asm-frv/scatterlist.h
+++ b/include/asm-frv/scatterlist.h
@@ -31,6 +31,9 @@ struct scatterlist {
 	unsigned int	length;
 };

+#define sg_dma_address(sg)	((sg)->dma_address)
+#define sg_dma_len(sg)		((sg)->length)
+
 #define ISA_DMA_THRESHOLD (0xffffffffUL)

 #endif /* !_ASM_SCATTERLIST_H */
-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://crashcourse.ca
========================================================================
-
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