dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

microblaze: Fix sg_dma_len() regression 

The commit "asm-generic: add NEED_SG_DMA_LENGTH to define sg_dma_len()"
18e98307de broke microblaze compilation.

dma_direct_map_sg() sets sg->dma_length, however microblaze doesn't
set NEED_SG_DMA_LENGTH so scatterlist strcutres doesn't include
dma_length.

sg->dma_length is always equal to sg->length on microblaze. So we
don't need to set set dma_length, that is, microblaze can simply use
sg->length.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
FUJITA Tomonori 2010-06-08 20:03:15 +09:00 committed by Michal Simek
parent ffe57d02b2
commit fcdcddbcbb
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/microblaze/kernel/dma.c
View File

@ -90,7 +90,6 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
/* FIXME this part of code is untested */
for_each_sg(sgl, sg, nents, i) {
sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev);
sg->dma_length = sg->length;
__dma_sync_page(page_to_phys(sg_page(sg)), sg->offset,
sg->length, direction);
}