From: Eric Biggers <ebiggers@xxxxxxxxxx>
The do_decrypt() function in util.c in the BCM crypto driver is never
used, so remove it.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
drivers/crypto/bcm/util.c | 40 ---------------------------------------
drivers/crypto/bcm/util.h | 6 ------
2 files changed, 46 deletions(-)
diff --git a/drivers/crypto/bcm/util.c b/drivers/crypto/bcm/util.c
index a912c6ad3e850..d8cda5fb75ad8 100644
--- a/drivers/crypto/bcm/util.c
+++ b/drivers/crypto/bcm/util.c
@@ -201,46 +201,6 @@ struct sdesc {
char ctx[];
};
-/* do a synchronous decrypt operation */
-int do_decrypt(char *alg_name,
- void *key_ptr, unsigned int key_len,
- void *iv_ptr, void *src_ptr, void *dst_ptr,
- unsigned int block_len)
-{
- struct scatterlist sg_in[1], sg_out[1];
- struct crypto_blkcipher *tfm =
- crypto_alloc_blkcipher(alg_name, 0, CRYPTO_ALG_ASYNC);
- struct blkcipher_desc desc = {.tfm = tfm, .flags = 0 };
- int ret = 0;
- void *iv;
- int ivsize;
-
- flow_log("%s() name:%s block_len:%u\n", __func__, alg_name, block_len);
-
- if (IS_ERR(tfm))
- return PTR_ERR(tfm);
-
- crypto_blkcipher_setkey((void *)tfm, key_ptr, key_len);
-
- sg_init_table(sg_in, 1);
- sg_set_buf(sg_in, src_ptr, block_len);
-
- sg_init_table(sg_out, 1);
- sg_set_buf(sg_out, dst_ptr, block_len);
-
- iv = crypto_blkcipher_crt(tfm)->iv;
- ivsize = crypto_blkcipher_ivsize(tfm);
- memcpy(iv, iv_ptr, ivsize);
-
- ret = crypto_blkcipher_decrypt(&desc, sg_out, sg_in, block_len);
- crypto_free_blkcipher(tfm);
-
- if (ret < 0)
- pr_err("aes_decrypt failed %d\n", ret);
-
- return ret;
-}
-
/**
* do_shash() - Do a synchronous hash operation in software
* @name: The name of the hash algorithm
diff --git a/drivers/crypto/bcm/util.h b/drivers/crypto/bcm/util.h
index 712e029795f86..15c60356518ae 100644
--- a/drivers/crypto/bcm/util.h
+++ b/drivers/crypto/bcm/util.h
@@ -95,12 +95,6 @@ u32 spu_msg_sg_add(struct scatterlist **to_sg,
void add_to_ctr(u8 *ctr_pos, unsigned int increment);
-/* do a synchronous decrypt operation */
-int do_decrypt(char *alg_name,
- void *key_ptr, unsigned int key_len,
- void *iv_ptr, void *src_ptr, void *dst_ptr,
- unsigned int block_len);
-
/* produce a message digest from data of length n bytes */
int do_shash(unsigned char *name, unsigned char *result,
const u8 *data1, unsigned int data1_len,
--
2.20.1
