crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN

[linux-block.git] / arch / powerpc / crypto / aes-spe-glue.c

diff --git a/arch/powerpc/crypto/aes-spe-glue.c b/arch/powerpc/crypto/aes-spe-glue.c
index 1fad5d4c658d183f9e601d8f389fae0b9b88dcf8..c2b23b69d7b1dadf90936629cb39c18e7519c533 100644 (file)
--- a/arch/powerpc/crypto/aes-spe-glue.c
+++ b/arch/powerpc/crypto/aes-spe-glue.c
@@ -94,13 +94,6 @@ static int ppc_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
 {
        struct ppc_aes_ctx *ctx = crypto_tfm_ctx(tfm);
 
-       if (key_len != AES_KEYSIZE_128 &&
-           key_len != AES_KEYSIZE_192 &&
-           key_len != AES_KEYSIZE_256) {
-               tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-               return -EINVAL;
-       }
-
        switch (key_len) {
        case AES_KEYSIZE_128:
                ctx->rounds = 4;
@@ -114,6 +107,8 @@ static int ppc_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
                ctx->rounds = 6;
                ppc_expand_key_256(ctx->key_enc, in_key);
                break;
+       default:
+               return -EINVAL;
        }
 
        ppc_generate_decrypt_key(ctx->key_dec, ctx->key_enc, key_len);
@@ -139,13 +134,6 @@ static int ppc_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
 
        key_len >>= 1;
 
-       if (key_len != AES_KEYSIZE_128 &&
-           key_len != AES_KEYSIZE_192 &&
-           key_len != AES_KEYSIZE_256) {
-               crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
-               return -EINVAL;
-       }
-
        switch (key_len) {
        case AES_KEYSIZE_128:
                ctx->rounds = 4;
@@ -162,6 +150,8 @@ static int ppc_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
                ppc_expand_key_256(ctx->key_enc, in_key);
                ppc_expand_key_256(ctx->key_twk, in_key + AES_KEYSIZE_256);
                break;
+       default:
+               return -EINVAL;
        }
 
        ppc_generate_decrypt_key(ctx->key_dec, ctx->key_enc, key_len);