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Commit 9cd22323 authored by Leilei Zhao's avatar Leilei Zhao Committed by Herbert Xu
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crypto: atmel-aes - correct usage of dma_sync_* API 



The output buffer is used for CPU access, so
the API should be dma_sync_single_for_cpu which
makes the cache line invalid in order to reload
the value in memory.

Signed-off-by: default avatarLeilei Zhao <leilei.zhao@atmel.com>
Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 289b2623

drivers/crypto/atmel-aes.c

+1 −1
Original line number Diff line number Diff line
@@ -627,7 +627,7 @@ static int atmel_aes_crypt_dma_stop(struct atmel_aes_dev *dd) 
			dma_unmap_sg(dd->dev, dd->out_sg, 1, DMA_FROM_DEVICE);

			dma_unmap_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE);

		} else {

			dma_sync_single_for_device(dd->dev, dd->dma_addr_out,

			dma_sync_single_for_cpu(dd->dev, dd->dma_addr_out,

				dd->dma_size, DMA_FROM_DEVICE);



			/* copy data */