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 <lkund...@v3.sk> --- drivers/dma/mv_xor.c | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-) 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) { -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/