diff options
| author | Jan-Simon Möller <dl9pf@gmx.de> | 2014-09-04 20:39:24 +0200 |
|---|---|---|
| committer | Behan Webster <behanw@converseincode.com> | 2014-10-14 10:51:23 +0200 |
| commit | 61ded52438d5fdc4dea87f823c455f8ac1e426df (patch) | |
| tree | f56000217a5de79cd49e79d60e8a8fb3f7a96a29 /drivers/crypto | |
| parent | btrfs: LLVMLinux: Remove VLAIS (diff) | |
| download | linux-61ded52438d5fdc4dea87f823c455f8ac1e426df.tar.xz linux-61ded52438d5fdc4dea87f823c455f8ac1e426df.zip | |
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')
| -rw-r--r-- | drivers/crypto/ccp/ccp-crypto-sha.c | 13 |
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 873f23425245..96531571f7cf 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); |