From: Eric Biggers <[email protected]>
Instead of manually allocating a 'struct shash_desc' on the stack and
calling crypto_shash_digest(), switch to using the new helper function
crypto_shash_tfm_digest() which does this for us.
Cc: [email protected]
Signed-off-by: Eric Biggers <[email protected]>
---
fs/ecryptfs/crypto.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 2c449aed1b9209..0681540c48d985 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -48,18 +48,6 @@ void ecryptfs_from_hex(char *dst, char *src, int dst_size)
}
}
-static int ecryptfs_hash_digest(struct crypto_shash *tfm,
- char *src, int len, char *dst)
-{
- SHASH_DESC_ON_STACK(desc, tfm);
- int err;
-
- desc->tfm = tfm;
- err = crypto_shash_digest(desc, src, len, dst);
- shash_desc_zero(desc);
- return err;
-}
-
/**
* ecryptfs_calculate_md5 - calculates the md5 of @src
* @dst: Pointer to 16 bytes of allocated memory
@@ -74,11 +62,8 @@ static int ecryptfs_calculate_md5(char *dst,
struct ecryptfs_crypt_stat *crypt_stat,
char *src, int len)
{
- struct crypto_shash *tfm;
- int rc = 0;
+ int rc = crypto_shash_tfm_digest(crypt_stat->hash_tfm, src, len, dst);
- tfm = crypt_stat->hash_tfm;
- rc = ecryptfs_hash_digest(tfm, src, len, dst);
if (rc) {
printk(KERN_ERR
"%s: Error computing crypto hash; rc = [%d]\n",
--
2.26.2