From: Corentin Labbe <clabbe@baylibre.com> To: davem@davemloft.net, herbert@gondor.apana.org.au, jernej.skrabec@gmail.com, mripard@kernel.org, wens@csie.org Cc: linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-sunxi@googlegroups.com, Corentin Labbe <clabbe@baylibre.com> Subject: [PATCH 3/8] crypto: sun8i-ss: handle zero sized sg Date: Wed, 26 Jan 2022 21:04:36 +0000 [thread overview] Message-ID: <20220126210441.3661782-4-clabbe@baylibre.com> (raw) In-Reply-To: <20220126210441.3661782-1-clabbe@baylibre.com> sun8i-ss does not handle well the possible zero sized sg. Fixes: d9b45418a917 ("crypto: sun8i-ss - support hash algorithms") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> --- drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c index 3c073eb3db03..2557bb3fe7aa 100644 --- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c +++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c @@ -379,13 +379,21 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq) } len = areq->nbytes; - for_each_sg(areq->src, sg, nr_sgs, i) { + sg = areq->src; + i = 0; + while (len > 0 && sg) { + if (sg_dma_len(sg) == 0) { + sg = sg_next(sg); + continue; + } rctx->t_src[i].addr = sg_dma_address(sg); todo = min(len, sg_dma_len(sg)); rctx->t_src[i].len = todo / 4; len -= todo; rctx->t_dst[i].addr = addr_res; rctx->t_dst[i].len = digestsize / 4; + sg = sg_next(sg); + i++; } if (len > 0) { dev_err(ss->dev, "remaining len %d\n", len); -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Corentin Labbe <clabbe@baylibre.com> To: davem@davemloft.net, herbert@gondor.apana.org.au, jernej.skrabec@gmail.com, mripard@kernel.org, wens@csie.org Cc: linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-sunxi@googlegroups.com, Corentin Labbe <clabbe@baylibre.com> Subject: [PATCH 3/8] crypto: sun8i-ss: handle zero sized sg Date: Wed, 26 Jan 2022 21:04:36 +0000 [thread overview] Message-ID: <20220126210441.3661782-4-clabbe@baylibre.com> (raw) In-Reply-To: <20220126210441.3661782-1-clabbe@baylibre.com> sun8i-ss does not handle well the possible zero sized sg. Fixes: d9b45418a917 ("crypto: sun8i-ss - support hash algorithms") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> --- drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c index 3c073eb3db03..2557bb3fe7aa 100644 --- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c +++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c @@ -379,13 +379,21 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq) } len = areq->nbytes; - for_each_sg(areq->src, sg, nr_sgs, i) { + sg = areq->src; + i = 0; + while (len > 0 && sg) { + if (sg_dma_len(sg) == 0) { + sg = sg_next(sg); + continue; + } rctx->t_src[i].addr = sg_dma_address(sg); todo = min(len, sg_dma_len(sg)); rctx->t_src[i].len = todo / 4; len -= todo; rctx->t_dst[i].addr = addr_res; rctx->t_dst[i].len = digestsize / 4; + sg = sg_next(sg); + i++; } if (len > 0) { dev_err(ss->dev, "remaining len %d\n", len); -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-01-26 21:04 UTC|newest] Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-26 21:04 [PATCH 0/8] crypto: allwinner: various improvments Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-26 21:04 ` [PATCH 1/8] crypto: sun8i-ce: do not allocate memory when handling requests Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-27 4:17 ` kernel test robot 2022-01-27 4:17 ` kernel test robot 2022-01-27 4:17 ` kernel test robot 2022-01-26 21:04 ` [PATCH 2/8] crypto: sun4i-ss: do not allocate backup IV on requests Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe [this message] 2022-01-26 21:04 ` [PATCH 3/8] crypto: sun8i-ss: handle zero sized sg Corentin Labbe 2022-01-26 21:04 ` [PATCH 4/8] crypto: sun8i-ss: do not allocate memory when handling hash requests Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-26 21:04 ` [PATCH 5/8] crypto: sun8i-ss: do not zeroize all pad Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-26 21:04 ` [PATCH 6/8] crypto: sun8i-ss: remove redundant test Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-26 21:04 ` [PATCH 7/8] crypto: sun8i-ss: test error before assigning Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe 2022-01-26 21:04 ` [PATCH 8/8] crypto: sun8i-ss: handle requests if last block is not modulo 64 Corentin Labbe 2022-01-26 21:04 ` Corentin Labbe
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