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crypto: remove several VLAs

Browse source 
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 <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Salvatore Mesoraca 2018-04-09 15:54:47 +02:00 • committed by Herbert Xu
commit 6650c4de68
5 changed files with 13 additions and 11 deletions
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5
crypto/cts.c
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@ -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;