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crypto: sun8i-ss - do not use sg_dma_len before calling DMA functions

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[ Upstream commit 2dfc7cd74a5e062a5405560447517e7aab1c7341 ]

When testing sun8i-ss with multi_v7_defconfig, all CBC algorithm fail crypto
selftests.
This is strange since on sunxi_defconfig, everything was ok.
The problem was in the IV setup loop which never run because sg_dma_len
was 0.

Fixes: 359e893e8a ("crypto: sun8i-ss - rework handling of IV")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Corentin Labbe
2025-04-27 13:12:36 +02:00
committed by Greg Kroah-Hartman
parent c62b79c1c5
commit cb1e26f53e
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
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@@ -141,7 +141,7 @@ static int sun8i_ss_setup_ivs(struct skcipher_request *areq)
/* we need to copy all IVs from source in case DMA is bi-directionnal */ /* we need to copy all IVs from source in case DMA is bi-directionnal */
while (sg && len) { while (sg && len) {
if (sg_dma_len(sg) == 0) { if (sg->length == 0) {
sg = sg_next(sg); sg = sg_next(sg);
continue; continue;
} }