From 70c3c8a96a85d333b3ff1f24df84c0e179261a8a Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 8 Jun 2015 16:38:24 +0800
Subject: [PATCH] crypto: caam - Clamp AEAD SG list by input length

Currently caam assumes that the SG list contains exactly the number
of bytes required.  This assumption is incorrect.

Up until now this has been harmless.  However with the new AEAD
interface this now breaks as the AD SG list contains more bytes
than just the AD.

This patch fixes this by always clamping the AD SG list by the
specified AD length.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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