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| author |   Salvatore Mesoraca <s.mesoraca16@gmail.com> | 2018-04-09 15:54:47 +0200 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2018-04-21 00:58:34 +0800 |
| commit | 6650c4de681ee90ea6da1fc34fb913f60e9bb008 (patch) | |
| tree | 6b0aad6025f677271fa95e979ddb04d5083463e1 /crypto/cfb.c | |
| parent | crypto: api - laying defines and checks for statically allocated buffers (diff) | |
| download | linux-dev-6650c4de681ee90ea6da1fc34fb913f60e9bb008.tar.xz linux-dev-6650c4de681ee90ea6da1fc34fb913f60e9bb008.zip | |
crypto: remove several VLAs
We avoid various VLAs[1] by using constant expressions for block size
and alignment mask.
[1] http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/cfb.c')
| -rw-r--r-- | crypto/cfb.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/crypto/cfb.c b/crypto/cfb.c index 94ee39bed758..a0d68c09e1b9 100644 --- a/crypto/cfb.c +++ b/crypto/cfb.c @@ -53,9 +53,8 @@ static void crypto_cfb_encrypt_one(struct crypto_skcipher *tfm, static void crypto_cfb_final(struct skcipher_walk *walk, struct crypto_skcipher *tfm) { - const unsigned int bsize = crypto_cfb_bsize(tfm); const unsigned long alignmask = crypto_skcipher_alignmask(tfm); - u8 tmp[bsize + alignmask]; + u8 tmp[MAX_CIPHER_BLOCKSIZE + MAX_CIPHER_ALIGNMASK]; u8 *stream = PTR_ALIGN(tmp + 0, alignmask + 1); u8 *src = walk->src.virt.addr; u8 *dst = walk->dst.virt.addr; @@ -94,7 +93,7 @@ static int crypto_cfb_encrypt_inplace(struct skcipher_walk *walk, unsigned int nbytes = walk->nbytes; u8 *src = walk->src.virt.addr; u8 *iv = walk->iv; - u8 tmp[bsize]; + u8 tmp[MAX_CIPHER_BLOCKSIZE]; do { crypto_cfb_encrypt_one(tfm, iv, tmp); @@ -164,7 +163,7 @@ static int crypto_cfb_decrypt_inplace(struct skcipher_walk *walk, unsigned int nbytes = walk->nbytes; u8 *src = walk->src.virt.addr; u8 *iv = walk->iv; - u8 tmp[bsize]; + u8 tmp[MAX_CIPHER_BLOCKSIZE]; do { crypto_cfb_encrypt_one(tfm, iv, tmp); |