REG3 no longer needs to be updated, since it's not used after that.
This shared descriptor command is a leftover of the conversion to
AEAD interface.

Fixes: 479bcc7c5b9e1 "crypto: caam - Convert authenc to new AEAD interface"
Signed-off-by: Horia Geantă <horia.gea...@nxp.com>
---
 drivers/crypto/caam/caamalg.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index cb26a57c5aaf..1982dacce80e 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -75,7 +75,7 @@
 #define DESC_AEAD_BASE                 (4 * CAAM_CMD_SZ)
 #define DESC_AEAD_ENC_LEN              (DESC_AEAD_BASE + 11 * CAAM_CMD_SZ)
 #define DESC_AEAD_DEC_LEN              (DESC_AEAD_BASE + 15 * CAAM_CMD_SZ)
-#define DESC_AEAD_GIVENC_LEN           (DESC_AEAD_ENC_LEN + 9 * CAAM_CMD_SZ)
+#define DESC_AEAD_GIVENC_LEN           (DESC_AEAD_ENC_LEN + 7 * CAAM_CMD_SZ)
 
 /* Note: Nonce is counted in enckeylen */
 #define DESC_AEAD_CTR_RFC3686_LEN      (4 * CAAM_CMD_SZ)
@@ -697,9 +697,6 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
        append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
        append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
 
-       /* ivsize + cryptlen = seqoutlen - authsize */
-       append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
-
        /* Skip assoc data */
        append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF);
 
-- 
2.4.4

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