From 83544ae9f3991bfc7d5e0fe9a3008cd05a8d57b7 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 8 Sep 2009 17:42:53 -0700 Subject: dmaengine, async_tx: support alignment checks Some engines have transfer size and address alignment restrictions. Add a per-operation alignment property to struct dma_device that the async routines and dmatest can use to check alignment capabilities. Signed-off-by: Dan Williams --- crypto/async_tx/async_memset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'crypto/async_tx/async_memset.c') diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c index a374784e3329..58e4a8752aee 100644 --- a/crypto/async_tx/async_memset.c +++ b/crypto/async_tx/async_memset.c @@ -47,7 +47,7 @@ async_memset(struct page *dest, int val, unsigned int offset, size_t len, struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx = NULL; - if (device) { + if (device && is_dma_fill_aligned(device, offset, 0, len)) { dma_addr_t dma_dest; unsigned long dma_prep_flags = 0; -- cgit v1.2.3