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authorSalvatore Mesoraca <s.mesoraca16@gmail.com>2018-04-09 15:54:47 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2018-04-20 18:58:34 +0200
commit6650c4de681ee90ea6da1fc34fb913f60e9bb008 (patch)
tree6b0aad6025f677271fa95e979ddb04d5083463e1 /crypto/pcbc.c
parentcrypto: api - laying defines and checks for statically allocated buffers (diff)
downloadlinux-6650c4de681ee90ea6da1fc34fb913f60e9bb008.tar.xz
linux-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/pcbc.c')
-rw-r--r--crypto/pcbc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/crypto/pcbc.c b/crypto/pcbc.c
index d9e45a958720..ef802f6e9642 100644
--- a/crypto/pcbc.c
+++ b/crypto/pcbc.c
@@ -14,6 +14,7 @@
*
*/
+#include <crypto/algapi.h>
#include <crypto/internal/skcipher.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -72,7 +73,7 @@ static int crypto_pcbc_encrypt_inplace(struct skcipher_request *req,
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *iv = walk->iv;
- u8 tmpbuf[bsize];
+ u8 tmpbuf[MAX_CIPHER_BLOCKSIZE];
do {
memcpy(tmpbuf, src, bsize);
@@ -144,7 +145,7 @@ static int crypto_pcbc_decrypt_inplace(struct skcipher_request *req,
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *iv = walk->iv;
- u8 tmpbuf[bsize] __aligned(__alignof__(u32));
+ u8 tmpbuf[MAX_CIPHER_BLOCKSIZE] __aligned(__alignof__(u32));
do {
memcpy(tmpbuf, src, bsize);