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| author | Behan Webster <behanw@converseincode.com> | 2014-04-04 23:18:00 +0200 |
|---|---|---|
| committer | Behan Webster <behanw@converseincode.com> | 2014-10-14 10:51:23 +0200 |
| commit | ce1f3e47d9d11ffde75d06170304dc9ff2afe0c6 (patch) | |
| tree | 4d86fc571aaea82055c38f86041bec462281c38d /drivers/crypto | |
| parent | crypto: LLVMLinux: Remove VLAIS from crypto/mv_cesa.c (diff) | |
| download | linux-ce1f3e47d9d11ffde75d06170304dc9ff2afe0c6.tar.xz linux-ce1f3e47d9d11ffde75d06170304dc9ff2afe0c6.zip | |
crypto: LLVMLinux: Remove VLAIS from crypto/n2_core.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: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/n2_core.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 7263c10a56ee..f8e3207fecb1 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -445,10 +445,7 @@ static int n2_hmac_async_setkey(struct crypto_ahash *tfm, const u8 *key, struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); struct crypto_shash *child_shash = ctx->child_shash; struct crypto_ahash *fallback_tfm; - struct { - struct shash_desc shash; - char ctx[crypto_shash_descsize(child_shash)]; - } desc; + SHASH_DESC_ON_STACK(shash, child_shash); int err, bs, ds; fallback_tfm = ctx->base.fallback_tfm; @@ -456,15 +453,15 @@ static int n2_hmac_async_setkey(struct crypto_ahash *tfm, const u8 *key, if (err) return err; - desc.shash.tfm = child_shash; - desc.shash.flags = crypto_ahash_get_flags(tfm) & + shash->tfm = child_shash; + shash->flags = crypto_ahash_get_flags(tfm) & CRYPTO_TFM_REQ_MAY_SLEEP; bs = crypto_shash_blocksize(child_shash); ds = crypto_shash_digestsize(child_shash); BUG_ON(ds > N2_HASH_KEY_MAX); if (keylen > bs) { - err = crypto_shash_digest(&desc.shash, key, keylen, + err = crypto_shash_digest(shash, key, keylen, ctx->hash_key); if (err) return err; |