On 08/08/18 06:36 PM, Vakul Garg wrote:
> For preparing decryption request, several memory chunks are required
> (aead_req, sgin, sgout, iv, aad). For submitting the decrypt request to
> an accelerator, it is required that the buffers which are read by the
> accelerator must be dma-able and not come from stack. The buffers for
> aad and iv can be separately kmalloced each, but it is inefficient.
> This patch does a combined allocation for preparing decryption request
> and then segments into aead_req || sgin || sgout || iv || aad.
> 
> Signed-off-by: Vakul Garg <vakul.g...@nxp.com>
> ---
> +                     n_sgout = sg_nents(out_sg);
> +
> +             n_sgin = skb_nsg(skb, rxm->offset + tls_ctx->rx.prepend_size,
> +                              rxm->full_len - tls_ctx->rx.prepend_size);
> +     } else {
> +no_zerocopy:

label is unused now

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