[PATCH] crypto: caam/qi,qi2 - set plain_keylen for skcipher descriptors

[Vincent Jardin via B4 Relay]

From: Vincent Jardin <vjardin@xxxxxxx>

Since the commit 66b9a095f7f9
  ("crypto: caam - Add support of paes algorithm")

The shared descriptor then loads a zero-length key and the SEC decodes
the inlined key bytes as commands.

Test: with CONFIG_CRYPTO_SELFTESTS on LX2160A every skcipher but xts fails:

  dpaa2_caam dpseci.0: 40000307: DECO: desc idx 3: Invalid LOAD Command
  alg: skcipher: ctr-aes-caam-qi2 encryption failed on test vector 0; expected_error=0, actual_error=-22, cfg="in-place (one sglist)"

caamalg_qi.c is compile-tested only.

Fixes: 66b9a095f7f9 ("crypto: caam - Add support of paes algorithm")
Signed-off-by: Vincent Jardin <vjardin@xxxxxxx>
---
 drivers/crypto/caam/caamalg_qi.c  | 2 ++
 drivers/crypto/caam/caamalg_qi2.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c
index aa779caacfe5..2f2682c8bcd8 100644
--- a/drivers/crypto/caam/caamalg_qi.c
+++ b/drivers/crypto/caam/caamalg_qi.c
@@ -637,6 +637,8 @@ static int skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key,
 	ctx->cdata.keylen = keylen;
 	ctx->cdata.key_virt = key;
 	ctx->cdata.key_inline = true;
+	ctx->cdata.plain_keylen = keylen;
+	ctx->cdata.key_cmd_opt = 0;
 
 	/* skcipher encrypt, decrypt shared descriptors */
 	cnstr_shdsc_skcipher_encap(ctx->sh_desc_enc, &ctx->cdata, ivsize,
diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c
index 6b47bcc16a50..d52706931285 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -961,6 +961,8 @@ static int skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key,
 	ctx->cdata.keylen = keylen;
 	ctx->cdata.key_virt = key;
 	ctx->cdata.key_inline = true;
+	ctx->cdata.plain_keylen = keylen;
+	ctx->cdata.key_cmd_opt = 0;
 
 	/* skcipher_encrypt shared descriptor */
 	flc = &ctx->flc[ENCRYPT];

---
base-commit: 10396a2d6d41d594975b6ece712278570c3c970c
change-id: 20260928-for-upstream-caam-qi-plain-keylen-72e8b611e787

Best regards,
-- 
Vincent Jardin <vjardin@xxxxxxx>