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>

1 files changed, 3 insertions, 2 deletions

diff --git a/crypto/cts.c b/crypto/cts.c
index 4773c188e6d9..4e28d83ae37d 100644
--- a/crypto/cts.c
+++ b/crypto/cts.c
@@ -40,6 +40,7 @@
  * rfc3962 includes errata information in its Appendix A.
  */
 
+#include <crypto/algapi.h>
 #include <crypto/internal/skcipher.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -104,7 +105,7 @@ static int cts_cbc_encrypt(struct skcipher_request *req)
         struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
         struct skcipher_request *subreq = &rctx->subreq;
         int bsize = crypto_skcipher_blocksize(tfm);
-        u8 d[bsize * 2] __aligned(__alignof__(u32));
+        u8 d[MAX_CIPHER_BLOCKSIZE * 2] __aligned(__alignof__(u32));
         struct scatterlist *sg;
         unsigned int offset;
         int lastn;
@@ -183,7 +184,7 @@ static int cts_cbc_decrypt(struct skcipher_request *req)
         struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
         struct skcipher_request *subreq = &rctx->subreq;
         int bsize = crypto_skcipher_blocksize(tfm);
-        u8 d[bsize * 2] __aligned(__alignof__(u32));
+        u8 d[MAX_CIPHER_BLOCKSIZE * 2] __aligned(__alignof__(u32));
         struct scatterlist *sg;
         unsigned int offset;
         u8 *space;