Signed-off-by: Ard Biesheuvel <a...@kernel.org>
---
 drivers/crypto/n2_core.c | 46 --------------------
 1 file changed, 46 deletions(-)

diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index 6a828bbecea4..c347e58cd9a1 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -662,7 +662,6 @@ struct n2_skcipher_context {
                u8              aes[AES_MAX_KEY_SIZE];
                u8              des[DES_KEY_SIZE];
                u8              des3[3 * DES_KEY_SIZE];
-               u8              arc4[258]; /* S-box, X, Y */
        } key;
 };
 
@@ -789,36 +788,6 @@ static int n2_3des_setkey(struct crypto_skcipher 
*skcipher, const u8 *key,
        return 0;
 }
 
-static int n2_arc4_setkey(struct crypto_skcipher *skcipher, const u8 *key,
-                         unsigned int keylen)
-{
-       struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
-       struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
-       struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
-       u8 *s = ctx->key.arc4;
-       u8 *x = s + 256;
-       u8 *y = x + 1;
-       int i, j, k;
-
-       ctx->enc_type = n2alg->enc_type;
-
-       j = k = 0;
-       *x = 0;
-       *y = 0;
-       for (i = 0; i < 256; i++)
-               s[i] = i;
-       for (i = 0; i < 256; i++) {
-               u8 a = s[i];
-               j = (j + key[k] + a) & 0xff;
-               s[i] = s[j];
-               s[j] = a;
-               if (++k >= keylen)
-                       k = 0;
-       }
-
-       return 0;
-}
-
 static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size)
 {
        int this_len = nbytes;
@@ -1122,21 +1091,6 @@ struct n2_skcipher_tmpl {
 };
 
 static const struct n2_skcipher_tmpl skcipher_tmpls[] = {
-       /* ARC4: only ECB is supported (chaining bits ignored) */
-       {       .name           = "ecb(arc4)",
-               .drv_name       = "ecb-arc4",
-               .block_size     = 1,
-               .enc_type       = (ENC_TYPE_ALG_RC4_STREAM |
-                                  ENC_TYPE_CHAINING_ECB),
-               .skcipher       = {
-                       .min_keysize    = 1,
-                       .max_keysize    = 256,
-                       .setkey         = n2_arc4_setkey,
-                       .encrypt        = n2_encrypt_ecb,
-                       .decrypt        = n2_decrypt_ecb,
-               },
-       },
-
        /* DES: ECB CBC and CFB are supported */
        {       .name           = "ecb(des)",
                .drv_name       = "ecb-des",
-- 
2.17.1

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