Re: [PATCH 01/10] crypto: omap-aes: Add support for lengths not aligned with AES_BLOCK_SIZE

[Felipe Balbi <balbi@ti.com>]

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On Thu, Jul 02, 2015 at 10:48:31AM +0530, Lokesh Vutla wrote:
> OMAP AES driver returns an error if the data is not aligned with
> AES_BLOCK_SIZE bytes.
> But OMAP AES hw allows data input upto 1 byte aligned, but still
> zeros are to be appended and complete AES_BLOCK_SIZE has to be written.
> And correct length has to be passed in LENGTH field.
> Adding support for inputs not aligned with AES_BLOCK_SIZE.
> 
> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
> ---
>  drivers/crypto/omap-aes.c |   33 ++++++++++++++++-----------------
>  1 file changed, 16 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
> index 9a28b7e..a923101 100644
> --- a/drivers/crypto/omap-aes.c
> +++ b/drivers/crypto/omap-aes.c
> @@ -558,6 +558,9 @@ static int omap_aes_check_aligned(struct scatterlist *sg, int total)
>  {
>  	int len = 0;
>  
> +	if (!IS_ALIGNED(total, AES_BLOCK_SIZE))
> +		return -1;

-EINVAL?

-- 
balbi

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