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authorIra Snyder <iws@ovro.caltech.edu>2011-03-03 07:54:53 +0000
committerDan Williams <dan.j.williams@intel.com>2011-03-11 17:52:35 -0800
commitb203bd3f6b9c3db3b1979c2ff79bb2b9be8f03a3 (patch)
tree647397b857fcad368078a72711ad2d25c7ea030a /drivers
parent6c11371dd17c5bd29e3a53cf5263be6ea67c51e4 (diff)
downloadop-kernel-dev-b203bd3f6b9c3db3b1979c2ff79bb2b9be8f03a3.zip
op-kernel-dev-b203bd3f6b9c3db3b1979c2ff79bb2b9be8f03a3.tar.gz
dmatest: fix automatic buffer unmap type
The dmatest code relies on the DMAEngine API to automatically call dma_unmap_single() on src buffers. The flags it passes are incorrect, fix them. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/dma/dmatest.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 5589358..7e1b0aa 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -285,7 +285,12 @@ static int dmatest_func(void *data)
set_user_nice(current, 10);
- flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_DEST_UNMAP | DMA_PREP_INTERRUPT;
+ /*
+ * src buffers are freed by the DMAEngine code with dma_unmap_single()
+ * dst buffers are freed by ourselves below
+ */
+ flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT
+ | DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SRC_UNMAP_SINGLE;
while (!kthread_should_stop()
&& !(iterations && total_tests >= iterations)) {
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