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| author | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
| commit | b21a207141d83a06abc5f492b80204602e02ca44 (patch) | |
| tree | f0152cde543008c72d7eb5c12c18095ad92785e6 /drivers/dma/mv_xor.c | |
| parent | 3af373021fa32f8f787bfbdcc1a9277a287bde4e (diff) | |
| parent | b58602a4bac012b5f4fc12fe6b46ab237b610d5d (diff) | |
| download | linux-b21a207141d83a06abc5f492b80204602e02ca44.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Conflicts:
drivers/uwb/wlp/eda.c
Diffstat (limited to 'drivers/dma/mv_xor.c')
| -rw-r--r-- | drivers/dma/mv_xor.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index 0328da020a10..bcda17426411 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -311,17 +311,26 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc, enum dma_ctrl_flags flags = desc->async_tx.flags; u32 src_cnt; dma_addr_t addr; + dma_addr_t dest; + src_cnt = unmap->unmap_src_cnt; + dest = mv_desc_get_dest_addr(unmap); if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - addr = mv_desc_get_dest_addr(unmap); - dma_unmap_page(dev, addr, len, DMA_FROM_DEVICE); + enum dma_data_direction dir; + + if (src_cnt > 1) /* is xor ? */ + dir = DMA_BIDIRECTIONAL; + else + dir = DMA_FROM_DEVICE; + dma_unmap_page(dev, dest, len, dir); } if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - src_cnt = unmap->unmap_src_cnt; while (src_cnt--) { addr = mv_desc_get_src_addr(unmap, src_cnt); + if (addr == dest) + continue; dma_unmap_page(dev, addr, len, DMA_TO_DEVICE); } |