[PATCH] dcp: aes: Move the AES operation type from actx to rctx

Herbert Xu herbert at gondor.apana.org.au
Sun Feb 9 04:19:41 EST 2014

On Tue, Jan 14, 2014 at 06:31:01PM +0100, Marek Vasut wrote:
> Move the AES operation type and mode from async crypto context to
> crypto request context. This allows for recycling of the async crypto
> context for different kinds of operations.
> I found this problem when I used dm-crypt, which uses the same async
> crypto context (actx) for both encryption and decryption requests.
> Since the requests are enqueued into the processing queue, immediatelly
> storing the type of operation into async crypto context (actx) caused
> corruption of this information when encryption and decryption operations
> followed imediatelly one after the other. When the first operation was
> dequeued, the second operation was already enqueued and overwritten the
> type of operation in actx, thus causing incorrect result of the first
> operation.
> Fix this problem by storing the type of operation into the crypto request
> context.
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: David S. Miller <davem at davemloft.net>
> Cc: Fabio Estevam <fabio.estevam at freescale.com>
> Cc: Herbert Xu <herbert at gondor.apana.org.au>
> Cc: Shawn Guo <shawn.guo at linaro.org>
> Cc: Tom Lendacky <thomas.lendacky at amd.com>

Patch applied.
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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