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crypto: remove several VLAs

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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>
This commit is contained in:
Salvatore Mesoraca
2018-04-09 15:54:47 +02:00
committed by Herbert Xu
parent 13c935bb09
commit 6650c4de68
5 changed files with 13 additions and 11 deletions
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5
crypto/pcbc.c
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@@ -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);