From: Behan Webster <behanw@xxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxx> Reviewed-by: Mark Charlebois <charlebm@xxxxxxxxx> Reviewed-by: Jan-Simon Möller <dl9pf@xxxxxx> Acked-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> --- drivers/crypto/qat/qat_common/qat_algs.c | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index 59df488..9cabadd 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -152,10 +152,7 @@ static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, const uint8_t *auth_key, unsigned int auth_keylen, uint8_t *auth_state) { - struct { - struct shash_desc shash; - char ctx[crypto_shash_descsize(ctx->hash_tfm)]; - } desc; + SHASH_DESC_ON_STACK(shash, ctx->hash_tfm); struct sha1_state sha1; struct sha256_state sha256; struct sha512_state sha512; @@ -167,12 +164,12 @@ static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, __be64 *hash512_state_out; int i, offset; - desc.shash.tfm = ctx->hash_tfm; - desc.shash.flags = 0x0; + shash->tfm = ctx->hash_tfm; + shash->flags = 0x0; if (auth_keylen > block_size) { char buff[SHA512_BLOCK_SIZE]; - int ret = crypto_shash_digest(&desc.shash, auth_key, + int ret = crypto_shash_digest(shash, auth_key, auth_keylen, buff); if (ret) return ret; @@ -195,10 +192,10 @@ static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, *opad_ptr ^= 0x5C; } - if (crypto_shash_init(&desc.shash)) + if (crypto_shash_init(shash)) return -EFAULT; - if (crypto_shash_update(&desc.shash, ipad, block_size)) + if (crypto_shash_update(shash, ipad, block_size)) return -EFAULT; hash_state_out = (__be32 *)hash->sha.state1; @@ -206,19 +203,19 @@ static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, switch (ctx->qat_hash_alg) { case ICP_QAT_HW_AUTH_ALGO_SHA1: - if (crypto_shash_export(&desc.shash, &sha1)) + if (crypto_shash_export(shash, &sha1)) return -EFAULT; for (i = 0; i < digest_size >> 2; i++, hash_state_out++) *hash_state_out = cpu_to_be32(*(sha1.state + i)); break; case ICP_QAT_HW_AUTH_ALGO_SHA256: - if (crypto_shash_export(&desc.shash, &sha256)) + if (crypto_shash_export(shash, &sha256)) return -EFAULT; for (i = 0; i < digest_size >> 2; i++, hash_state_out++) *hash_state_out = cpu_to_be32(*(sha256.state + i)); break; case ICP_QAT_HW_AUTH_ALGO_SHA512: - if (crypto_shash_export(&desc.shash, &sha512)) + if (crypto_shash_export(shash, &sha512)) return -EFAULT; for (i = 0; i < digest_size >> 3; i++, hash512_state_out++) *hash512_state_out = cpu_to_be64(*(sha512.state + i)); @@ -227,10 +224,10 @@ static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, return -EFAULT; } - if (crypto_shash_init(&desc.shash)) + if (crypto_shash_init(shash)) return -EFAULT; - if (crypto_shash_update(&desc.shash, opad, block_size)) + if (crypto_shash_update(shash, opad, block_size)) return -EFAULT; offset = round_up(qat_get_inter_state_size(ctx->qat_hash_alg), 8); @@ -239,19 +236,19 @@ static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, switch (ctx->qat_hash_alg) { case ICP_QAT_HW_AUTH_ALGO_SHA1: - if (crypto_shash_export(&desc.shash, &sha1)) + if (crypto_shash_export(shash, &sha1)) return -EFAULT; for (i = 0; i < digest_size >> 2; i++, hash_state_out++) *hash_state_out = cpu_to_be32(*(sha1.state + i)); break; case ICP_QAT_HW_AUTH_ALGO_SHA256: - if (crypto_shash_export(&desc.shash, &sha256)) + if (crypto_shash_export(shash, &sha256)) return -EFAULT; for (i = 0; i < digest_size >> 2; i++, hash_state_out++) *hash_state_out = cpu_to_be32(*(sha256.state + i)); break; case ICP_QAT_HW_AUTH_ALGO_SHA512: - if (crypto_shash_export(&desc.shash, &sha512)) + if (crypto_shash_export(shash, &sha512)) return -EFAULT; for (i = 0; i < digest_size >> 3; i++, hash512_state_out++) *hash512_state_out = cpu_to_be64(*(sha512.state + i)); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html