linux-kernel - Re: [PATCH] crypto: marvell/cesa - Avoid empty transfer descriptor

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Message-ID: <aC2aAvX07Aaho08d@gondor.apana.org.au>
Date: Wed, 21 May 2025 17:16:50 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Corentin Labbe <clabbe.montjoie@...il.com>
Cc: Klaus Kudielka <klaus.kudielka@...il.com>,
	Eric Biggers <ebiggers@...nel.org>, regressions@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
	Boris Brezillon <bbrezillon@...nel.org>,
	EBALARD Arnaud <Arnaud.Ebalard@....gouv.fr>,
	Romain Perier <romain.perier@...il.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] crypto: marvell/cesa - Avoid empty transfer descriptor

On Wed, May 21, 2025 at 01:06:43PM +0800, Herbert Xu wrote:
>
> Can you please try this patch to see if it makes a difference?

Actually, please try this one instead.

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
diff --git a/drivers/crypto/marvell/cesa/hash.c b/drivers/crypto/marvell/cesa/hash.c
index 6815eddc9068..8a9ea83372c9 100644
--- a/drivers/crypto/marvell/cesa/hash.c
+++ b/drivers/crypto/marvell/cesa/hash.c
@@ -15,6 +15,7 @@
 #include <crypto/sha2.h>
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
+#include <linux/dma-map-ops.h>
 
 #include "cesa.h"
 
@@ -532,6 +533,7 @@ mv_cesa_ahash_dma_add_cache(struct mv_cesa_tdma_chain *chain,
 		return ret;
 
 	memcpy(ahashdreq->cache, creq->cache, creq->cache_ptr);
+	arch_sync_dma_for_device(ahashdreq->cache_dma, creq->cache_ptr, DMA_TO_DEVICE);
 
 	return mv_cesa_dma_add_data_transfer(chain,
 					     CESA_SA_DATA_SRAM_OFFSET,