From: Antoine Tenart <antoine.tenart@bootlin.com>
Date: Mon, 19 Mar 2018 09:21:19 +0100
Subject: crypto: inside-secure - the context ipad/opad should use the state sz

Git-commit: 4505bb02ec87f24e4704716ef5a55b233805157d
Patch-mainline: v4.17-rc1
References: fate#326470

This patches uses the state size of the algorithms instead of their
digest size to copy the ipad and opad in the context. This doesn't fix
anything as the state and digest size are the same for many algorithms,
and for all the hmac currently supported by this driver. However
hmac(sha224) use the sha224 hash function which has a different digest
and state size. This commit prepares the addition of such algorithms.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 drivers/crypto/inside-secure/safexcel_hash.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index d3ba935d0266..31df97eec89a 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -120,11 +120,11 @@ static void safexcel_context_control(struct safexcel_ahash_ctx *ctx,
 				ctx->base.ctxr->data[i] = cpu_to_le32(req->processed / blocksize);
 		}
 	} else if (req->digest == CONTEXT_CONTROL_DIGEST_HMAC) {
-		cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(10);
+		cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(2 * req->state_sz / sizeof(u32));
 
-		memcpy(ctx->base.ctxr->data, ctx->ipad, digestsize);
-		memcpy(ctx->base.ctxr->data + digestsize / sizeof(u32),
-		       ctx->opad, digestsize);
+		memcpy(ctx->base.ctxr->data, ctx->ipad, req->state_sz);
+		memcpy(ctx->base.ctxr->data + req->state_sz / sizeof(u32),
+		       ctx->opad, req->state_sz);
 	}
 }
 
-- 
2.11.0