Patch "crypto: caam/qi - properly set IV after {en,de}crypt" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

crypto: caam/qi - properly set IV after {en,de}crypt

to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
crypto-caam-qi-properly-set-iv-after-en-de-crypt.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: =?UTF-8?q?Horia=20Geant=C4=83?= <[email protected]>
Date: Mon, 10 Jul 2017 08:40:30 +0300
Subject: crypto: caam/qi - properly set IV after {en,de}crypt
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From: Horia Geantă <[email protected]>

commit a68a193805224d90bedd94e9e8ac287600f07b78 upstream.

caam/qi needs a fix similar to what was done for caam/jr in commit "crypto: caam/qi - properly set IV after {en,de}crypt", to allow for ablkcipher/skcipher chunking/streaming.

---
 drivers/crypto/caam/caamalg_qi.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

@@ -776,9 +776,9 @@ static void ablkcipher_done(struct caam_
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
 	struct caam_ctx *caam_ctx = crypto_ablkcipher_ctx(ablkcipher);
 	struct device *qidev = caam_ctx->qidev;
-#ifdef DEBUG
 	int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 
+#ifdef DEBUG
 	dev_err(qidev, "%s %d: status 0x%x\n", __func__, __LINE__, status);
 #endif
 

@@ -799,6 +799,13 @@ static void ablkcipher_done(struct caam_
 	ablkcipher_unmap(qidev, edesc, req);
 	qi_cache_free(edesc);
 
+	/*
+	 * The crypto API expects us to set the IV (req->info) to the last
+	 * ciphertext block. This is used e.g. by the CTS mode.
+	 */
+	scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize,
+				 ivsize, 0);
+
 	ablkcipher_request_complete(req, status);
 }
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/crypto-caam-qi-properly-set-iv-after-en-de-crypt.patch queue-4.13/crypto-caam-qi-fix-typo-in-authenc-alg-driver-name.patch