On Fri, 23 Apr 2010 10:29:04 +0200
Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
+#include <asm-generic/scatterlist.h>
This include should be ...
/* This is bogus and should go away. */
#define ISA_DMA_THRESHOLD (0x00ffffff)
asm-generic/scatterlist.h can't define ISA_DMA_THRESHOLD because of
the way POWERPC uses ISA_DMA_THRESHOLD.
... below this definition, else you get duplicate definition errors
(and the wrong definition).
-#define sg_dma_address(sg) ((sg)->dma_address)
-#define sg_dma_len(sg) ((sg)->length)
This patch needs to be applied against -mm; including some changes to
asm-generic/scatterlist.h.
I've attached asm-generic/scatterlist.h in -mm.
=
#ifndef __ASM_GENERIC_SCATTERLIST_H
#define __ASM_GENERIC_SCATTERLIST_H
#include <linux/types.h>
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset;
unsigned int length;
dma_addr_t dma_address;
#ifdef CONFIG_NEED_SG_DMA_LENGTH
unsigned int dma_length;
#endif
};
/*
* These macros should be used after a dma_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)
#ifdef CONFIG_NEED_SG_DMA_LENGTH
#define sg_dma_len(sg) ((sg)->dma_length)
#else
#define sg_dma_len(sg) ((sg)->length)
#endif
#endif /* __ASM_GENERIC_SCATTERLIST_H */
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