crypto: ccree - remove bitlocker cipher

Remove the bitlocker cipher which is not supported by
the kernel.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/ccree/cc_cipher.c b/drivers/crypto/ccree/cc_cipher.c
index 97d8232..dafa657 100644 (file)
--- a/drivers/crypto/ccree/cc_cipher.c
+++ b/drivers/crypto/ccree/cc_cipher.c
@@ -75,8 +75,7 @@ static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
                switch (size) {
                case CC_AES_128_BIT_KEY_SIZE:
                case CC_AES_192_BIT_KEY_SIZE:
-                       if (ctx_p->cipher_mode != DRV_CIPHER_XTS &&
-                           ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER)
+                       if (ctx_p->cipher_mode != DRV_CIPHER_XTS)
                                return 0;
                        break;
                case CC_AES_256_BIT_KEY_SIZE:
@@ -84,8 +83,7 @@ static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size)
                case (CC_AES_192_BIT_KEY_SIZE * 2):
                case (CC_AES_256_BIT_KEY_SIZE * 2):
                        if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
-                           ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
-                           ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER)
+                           ctx_p->cipher_mode == DRV_CIPHER_ESSIV)
                                return 0;
                        break;
                default:
@@ -122,7 +120,6 @@ static int validate_data_size(struct cc_cipher_ctx *ctx_p,
                case DRV_CIPHER_ECB:
                case DRV_CIPHER_CBC:
                case DRV_CIPHER_ESSIV:
-               case DRV_CIPHER_BITLOCKER:
                        if (IS_ALIGNED(size, AES_BLOCK_SIZE))
                                return 0;
                        break;
@@ -348,8 +345,7 @@ static int cc_cipher_sethkey(struct crypto_skcipher *sktfm, const u8 *key,
                }
 
                if (ctx_p->cipher_mode == DRV_CIPHER_XTS ||
-                   ctx_p->cipher_mode == DRV_CIPHER_ESSIV ||
-                   ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) {
+                   ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
                        if (hki.hw_key1 == hki.hw_key2) {
                                dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
                                        hki.hw_key1, hki.hw_key2);
@@ -547,7 +543,6 @@ static void cc_setup_readiv_desc(struct crypto_tfm *tfm,
                break;
        case DRV_CIPHER_XTS:
        case DRV_CIPHER_ESSIV:
-       case DRV_CIPHER_BITLOCKER:
                /*  IV */
                hw_desc_init(&desc[*seq_size]);
                set_setup_mode(&desc[*seq_size], SETUP_WRITE_STATE1);
@@ -602,7 +597,6 @@ static void cc_setup_state_desc(struct crypto_tfm *tfm,
                break;
        case DRV_CIPHER_XTS:
        case DRV_CIPHER_ESSIV:
-       case DRV_CIPHER_BITLOCKER:
                break;
        default:
                dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
@@ -636,7 +630,6 @@ static void cc_setup_xex_state_desc(struct crypto_tfm *tfm,
                break;
        case DRV_CIPHER_XTS:
        case DRV_CIPHER_ESSIV:
-       case DRV_CIPHER_BITLOCKER:
 
                if (cipher_mode == DRV_CIPHER_ESSIV)
                        key_len = SHA256_DIGEST_SIZE;
@@ -750,7 +743,6 @@ static void cc_setup_key_desc(struct crypto_tfm *tfm,
                break;
        case DRV_CIPHER_XTS:
        case DRV_CIPHER_ESSIV:
-       case DRV_CIPHER_BITLOCKER:
                /* Load AES key */
                hw_desc_init(&desc[*seq_size]);
                set_cipher_mode(&desc[*seq_size], cipher_mode);
@@ -1049,24 +1041,6 @@ static const struct cc_alg_template skcipher_algs[] = {
                .sec_func = true,
        },
        {
-               .name = "bitlocker(paes)",
-               .driver_name = "bitlocker-paes-ccree",
-               .blocksize = AES_BLOCK_SIZE,
-               .template_skcipher = {
-                       .setkey = cc_cipher_sethkey,
-                       .encrypt = cc_cipher_encrypt,
-                       .decrypt = cc_cipher_decrypt,
-                       .min_keysize = CC_HW_KEY_SIZE,
-                       .max_keysize = CC_HW_KEY_SIZE,
-                       .ivsize = AES_BLOCK_SIZE,
-                       },
-               .cipher_mode = DRV_CIPHER_BITLOCKER,
-               .flow_mode = S_DIN_to_AES,
-               .min_hw_rev = CC_HW_REV_712,
-               .std_body = CC_STD_NIST,
-               .sec_func = true,
-       },
-       {
                .name = "ecb(paes)",
                .driver_name = "ecb-paes-ccree",
                .blocksize = AES_BLOCK_SIZE,
@@ -1195,23 +1169,6 @@ static const struct cc_alg_template skcipher_algs[] = {
                .std_body = CC_STD_NIST,
        },
        {
-               .name = "bitlocker(aes)",
-               .driver_name = "bitlocker-aes-ccree",
-               .blocksize = AES_BLOCK_SIZE,
-               .template_skcipher = {
-                       .setkey = cc_cipher_setkey,
-                       .encrypt = cc_cipher_encrypt,
-                       .decrypt = cc_cipher_decrypt,
-                       .min_keysize = AES_MIN_KEY_SIZE * 2,
-                       .max_keysize = AES_MAX_KEY_SIZE * 2,
-                       .ivsize = AES_BLOCK_SIZE,
-                       },
-               .cipher_mode = DRV_CIPHER_BITLOCKER,
-               .flow_mode = S_DIN_to_AES,
-               .min_hw_rev = CC_HW_REV_712,
-               .std_body = CC_STD_NIST,
-       },
-       {
                .name = "ecb(aes)",
                .driver_name = "ecb-aes-ccree",
                .blocksize = AES_BLOCK_SIZE,

diff --git a/drivers/crypto/ccree/cc_crypto_ctx.h b/drivers/crypto/ccree/cc_crypto_ctx.h
index ccf960a..bd9a1c0 100644 (file)
--- a/drivers/crypto/ccree/cc_crypto_ctx.h
+++ b/drivers/crypto/ccree/cc_crypto_ctx.h
@@ -108,7 +108,6 @@ enum drv_cipher_mode {
        DRV_CIPHER_CBC_CTS = 11,
        DRV_CIPHER_GCTR = 12,
        DRV_CIPHER_ESSIV = 13,
-       DRV_CIPHER_BITLOCKER = 14,
        DRV_CIPHER_RESERVE32B = S32_MAX
 };