5.4-stable review patch. If anyone has any objections, please let me know.
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From: Herbert Xu herbert@gondor.apana.org.au
[ Upstream commit 1bafd82d9a40cf09c6c40f1c09cc35b7050b1a9f ]
The user may set req->src even if req->nbytes == 0. If there is no data to hash from req->src, do not generate an empty TDMA descriptor.
Fixes: db509a45339f ("crypto: marvell/cesa - add TDMA support") Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/marvell/hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c index a2b35fb0fb890..de1599bca3b75 100644 --- a/drivers/crypto/marvell/hash.c +++ b/drivers/crypto/marvell/hash.c @@ -630,7 +630,7 @@ static int mv_cesa_ahash_dma_req_init(struct ahash_request *req) if (ret) goto err_free_tdma;
- if (iter.src.sg) { + if (iter.base.len > iter.src.op_offset) { /* * Add all the new data, inserting an operation block and * launch command between each full SRAM block-worth of