From 15f64ee0aecdd7a65bd8a6067511e14abf159590 Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Mon, 19 Mar 2018 09:21:18 +0100 Subject: [PATCH] crypto: inside-secure - improve the skcipher token The token used for encryption and decryption of skcipher algorithms sets its stat field to "last packet". As it's a cipher only algorithm, there is not hash operation and thus the "last hash" bit should be set to tell the internal engine no hash operation should be performed. This does not fix a bug, but improves the token definition to follow exactly what's advised by the datasheet. Signed-off-by: Antoine Tenart Signed-off-by: Herbert Xu --- drivers/crypto/inside-secure/safexcel_cipher.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index 17a7725a6f6d..bafb60505fab 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -58,7 +58,8 @@ static void safexcel_cipher_token(struct safexcel_cipher_ctx *ctx, token[0].opcode = EIP197_TOKEN_OPCODE_DIRECTION; token[0].packet_length = length; - token[0].stat = EIP197_TOKEN_STAT_LAST_PACKET; + token[0].stat = EIP197_TOKEN_STAT_LAST_PACKET | + EIP197_TOKEN_STAT_LAST_HASH; token[0].instructions = EIP197_TOKEN_INS_LAST | EIP197_TOKEN_INS_TYPE_CRYTO | EIP197_TOKEN_INS_TYPE_OUTPUT; -- 2.30.2