desc.shash.flags = CRYPTO_TFM_REQ_MAY_SLEEP;if(unlikely(req_ctx->first_hash)) {crypto_shash_init(&desc.shash); crypto_shash_update(&desc.shash, req_ctx->buffer, req_ctx->extra_bytes); }else{/* only SHA1 for now... */rc = mv_hash_import_sha1_ctx(req_ctx, &desc.shash);if(...