[PATCH] dmaengine: fix xor sources continuation
From: <hidden>
Date: 2014-07-01 09:33:43
Subsystem:
asynchronous transfers/transforms (ioat) api, crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
From: Xuelin Shi <redacted> the partial xor result must be kept until the next tx is generated. Signed-off-by: Xuelin Shi <redacted> --- crypto/async_tx/async_xor.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 3c562f5..e1bce26 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c@@ -78,8 +78,6 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap, tx = dma->device_prep_dma_xor(chan, dma_dest, src_list, xor_src_cnt, unmap->len, dma_flags); - src_list[0] = tmp; - if (unlikely(!tx)) async_tx_quiesce(&submit->depend_tx);
@@ -92,6 +90,7 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap, xor_src_cnt, unmap->len, dma_flags); } + src_list[0] = tmp; dma_set_unmap(tx, unmap); async_tx_submit(chan, tx, submit);
--
1.9.1