From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 18 Oct 2015 16:24:11 +0000 (+0100)
Subject: crypto: marvell/cesa - always ensure mid-fragments after first-fragment
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2f396a91d1d01a423fd87b7c6ff71600d06b9c05;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

crypto: marvell/cesa - always ensure mid-fragments after first-fragment

If we add a template first-fragment operation, always update the
template to be a mid-fragment.  This ensures that mid-fragments
always follow on from a first fragment in every case.

This means we can move the first to mid-fragment update code out of
mv_cesa_ahash_dma_add_data().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index e7991cb35582..3811ec0dd694 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -491,6 +491,11 @@ mv_cesa_dma_add_frag(struct mv_cesa_tdma_chain *chain,
 	if (ret)
 		return ERR_PTR(ret);
 
+	if (mv_cesa_mac_op_is_first_frag(tmpl))
+		mv_cesa_update_op_cfg(tmpl,
+				      CESA_SA_DESC_CFG_MID_FRAG,
+				      CESA_SA_DESC_CFG_FRAG_MSK);
+
 	return op;
 }
 
@@ -529,7 +534,6 @@ mv_cesa_ahash_dma_add_data(struct mv_cesa_tdma_chain *chain,
 			   struct mv_cesa_ahash_req *creq,
 			   gfp_t flags)
 {
-	struct mv_cesa_op_ctx *op;
 	int ret;
 
 	/* Add input transfers */
@@ -538,17 +542,8 @@ mv_cesa_ahash_dma_add_data(struct mv_cesa_tdma_chain *chain,
 	if (ret)
 		return ERR_PTR(ret);
 
-	op = mv_cesa_dma_add_frag(chain, &creq->op_tmpl, dma_iter->base.op_len,
-				  flags);
-	if (IS_ERR(op))
-		return op;
-
-	if (mv_cesa_mac_op_is_first_frag(&creq->op_tmpl))
-		mv_cesa_update_op_cfg(&creq->op_tmpl,
-				      CESA_SA_DESC_CFG_MID_FRAG,
-				      CESA_SA_DESC_CFG_FRAG_MSK);
-
-	return op;
+	return mv_cesa_dma_add_frag(chain, &creq->op_tmpl, dma_iter->base.op_len,
+				    flags);
 }
 
 static struct mv_cesa_op_ctx *