diff mbox

[1/3] dma: mv_xor: do not sync the DMA buffer after being deallocated

Message ID 1358495182-30964-1-git-send-email-lkundrak@v3.sk (mailing list archive)
State New, archived
Headers show

Commit Message

Lubomir Rintel Jan. 18, 2013, 7:46 a.m. UTC 
DMA_CHECK was unhappy:
mv_xor mv_xor.0: DMA-API: device driver tries to sync DMA memory it has not allocated [device address=0x000000001f3a1a40] [size=2000 bytes]

Deallocation, which involves a sync, happens automatically by
mv_xor_slot_cleanup() once the transfer is finished.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
---
 drivers/dma/mv_xor.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index e666983..8b81a04 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -960,8 +960,6 @@  static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 		goto free_resources;
 	}
 
-	dma_sync_single_for_cpu(dma_chan->device->dev, dest_dma,
-				MV_XOR_TEST_SIZE, DMA_FROM_DEVICE);
 	if (memcmp(src, dest, MV_XOR_TEST_SIZE)) {
 		dev_err(dma_chan->device->dev,
 			"Self-test copy failed compare, disabling\n");
@@ -1054,8 +1052,6 @@  mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
 		goto free_resources;
 	}
 
-	dma_sync_single_for_cpu(dma_chan->device->dev, dest_dma,
-				PAGE_SIZE, DMA_FROM_DEVICE);
 	for (i = 0; i < (PAGE_SIZE / sizeof(u32)); i++) {
 		u32 *ptr = page_address(dest);
 		if (ptr[i] != cmp_word) {