zero_message_hmac_sha256 53 drivers/crypto/ux500/hash/hash_core.c static const u8 zero_message_hmac_sha256[SHA256_DIGEST_SIZE] = { zero_message_hmac_sha256 254 drivers/crypto/ux500/hash/hash_core.c memcpy(zero_hash, &zero_message_hmac_sha256[0],