From: Atul Gupta <atul.gupta@chelsio.com>
Date: Sun, 27 May 2018 21:15:18 +0530
Subject: crypto: chtls - key len correction
Patch-mainline: v4.18-rc1
Git-commit: 09e53d8289477449ddd74cfff640792ca02fa90d
References: bsc#1104270 FATE#325931

corrected the key length to copy 128b key. Removed 192b and 256b
key as user input supports key of size 128b in gcm_ctx

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/crypto/chelsio/chtls/chtls_hw.c |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

--- a/drivers/crypto/chelsio/chtls/chtls_hw.c
+++ b/drivers/crypto/chelsio/chtls/chtls_hw.c
@@ -213,7 +213,7 @@ static int chtls_key_info(struct chtls_s
 			  struct _key_ctx *kctx,
 			  u32 keylen, u32 optname)
 {
-	unsigned char key[CHCR_KEYCTX_CIPHER_KEY_SIZE_256];
+	unsigned char key[AES_KEYSIZE_128];
 	struct tls12_crypto_info_aes_gcm_128 *gcm_ctx;
 	unsigned char ghash_h[AEAD_H_SIZE];
 	struct crypto_cipher *cipher;
@@ -228,10 +228,6 @@ static int chtls_key_info(struct chtls_s
 
 	if (keylen == AES_KEYSIZE_128) {
 		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
-	} else if (keylen == AES_KEYSIZE_192) {
-		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
-	} else if (keylen == AES_KEYSIZE_256) {
-		ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_256;
 	} else {
 		pr_err("GCM: Invalid key length %d\n", keylen);
 		return -EINVAL;