From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Wed, 26 May 2010 21:44:43 +0000 (-0700)
Subject: parisc: use asm-generic/scatterlist.h
X-Git-Tag: v5.15~29160
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=f6ae31c23be6926359e9379acfdbbdd945209f05;p=mirror_ubuntu-kernels.git

parisc: use asm-generic/scatterlist.h

parisc uses iova and iova_length in scatterlist structure instead of
dma_address and dma_length.  However, the accessor are used so we can
convert parisc to use asm-generic/scatterlist.h easily.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9c4da3d63bfb..05a366a5c4d5 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -98,6 +98,9 @@ config STACKTRACE_SUPPORT
 config NEED_DMA_MAP_STATE
 	def_bool y
 
+config NEED_SG_DMA_LENGTH
+	def_bool y
+
 config ISA_DMA_API
 	bool
 
diff --git a/arch/parisc/include/asm/scatterlist.h b/arch/parisc/include/asm/scatterlist.h
index 62269b31ebf4..2c3b79b54b28 100644
--- a/arch/parisc/include/asm/scatterlist.h
+++ b/arch/parisc/include/asm/scatterlist.h
@@ -3,25 +3,9 @@
 
 #include <asm/page.h>
 #include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-	unsigned long sg_magic;
-#endif
-	unsigned long page_link;
-	unsigned int offset;
-
-	unsigned int length;
-
-	/* an IOVA can be 64-bits on some PA-Risc platforms. */
-	dma_addr_t iova;	/* I/O Virtual Address */
-	__u32      iova_length; /* bytes mapped */
-};
-
-#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
-#define sg_dma_address(sg) ((sg)->iova)
-#define sg_dma_len(sg)     ((sg)->iova_length)
+#include <asm-generic/scatterlist.h>
 
 #define ISA_DMA_THRESHOLD (~0UL)
+#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
 
 #endif /* _ASM_PARISC_SCATTERLIST_H */