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authorJan-Simon Möller <dl9pf@gmx.de>2014-09-04 20:39:24 +0200
committerBehan Webster <behanw@converseincode.com>2014-10-14 10:51:23 +0200
commit61ded52438d5fdc4dea87f823c455f8ac1e426df (patch)
treef56000217a5de79cd49e79d60e8a8fb3f7a96a29 /drivers/crypto/ccp
parent0458a953d85088a9ba3e448745676377775879e0 (diff)
downloadop-kernel-dev-61ded52438d5fdc4dea87f823c455f8ac1e426df.zip
op-kernel-dev-61ded52438d5fdc4dea87f823c455f8ac1e426df.tar.gz
crypto: LLVMLinux: Remove VLAIS from crypto/ccp/ccp-crypto-sha.c
Replaced the use of a Variable Length Array In Struct (VLAIS) with a C99 compliant equivalent. This patch allocates the appropriate amount of memory using a char array using the SHASH_DESC_ON_STACK macro. The new code can be compiled with both gcc and clang. Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de> Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccp')
-rw-r--r--drivers/crypto/ccp/ccp-crypto-sha.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c
index 873f234..9653157 100644
--- a/drivers/crypto/ccp/ccp-crypto-sha.c
+++ b/drivers/crypto/ccp/ccp-crypto-sha.c
@@ -198,10 +198,9 @@ static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
{
struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
struct crypto_shash *shash = ctx->u.sha.hmac_tfm;
- struct {
- struct shash_desc sdesc;
- char ctx[crypto_shash_descsize(shash)];
- } desc;
+
+ SHASH_DESC_ON_STACK(sdesc, shash);
+
unsigned int block_size = crypto_shash_blocksize(shash);
unsigned int digest_size = crypto_shash_digestsize(shash);
int i, ret;
@@ -216,11 +215,11 @@ static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
if (key_len > block_size) {
/* Must hash the input key */
- desc.sdesc.tfm = shash;
- desc.sdesc.flags = crypto_ahash_get_flags(tfm) &
+ sdesc->tfm = shash;
+ sdesc->flags = crypto_ahash_get_flags(tfm) &
CRYPTO_TFM_REQ_MAY_SLEEP;
- ret = crypto_shash_digest(&desc.sdesc, key, key_len,
+ ret = crypto_shash_digest(sdesc, key, key_len,
ctx->u.sha.key);
if (ret) {
crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
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