From: Christophe Leroy <christophe.leroy@c-s.fr>
Date: Tue, 21 May 2019 13:34:09 +0000 (+0000)
Subject: crypto: talitos - reduce max key size for SEC1
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0ae9be948390cb04b2c1959c2b14400cfccb2a29;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

crypto: talitos - reduce max key size for SEC1

commit b8fbdc2bc4e71b62646031d5df5f08aafe15d5ad upstream.

SEC1 doesn't support SHA384/512, so it doesn't require
longer keys.

This patch reduces the max key size when the driver
is built for SEC1 only.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 03d2c5114c95 ("crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index f4a6be76468d..15eb1501915c 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -816,7 +816,11 @@ static void talitos_unregister_rng(struct device *dev)
  * HMAC_SNOOP_NO_AFEA (HSNA) instead of type IPSEC_ESP
  */
 #define TALITOS_CRA_PRIORITY_AEAD_HSNA	(TALITOS_CRA_PRIORITY - 1)
+#ifdef CONFIG_CRYPTO_DEV_TALITOS_SEC2
 #define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
+#else
+#define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA256_BLOCK_SIZE)
+#endif
 #define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
 
 struct talitos_ctx {