From nobody Tue Feb 10 01:16:34 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8F33D2E0400; Thu, 18 Dec 2025 03:49:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766029759; cv=none; b=k1fJeNPQ9vLuOjbzuB60jKIumPYcQyYpDfiPCbBhDBPwgp8zPC1reszgIVAAxDkNQL+LQwbzDmbYJAfMZGDzVOnpQyRC/PVRoGZYJA6rAM1ipyyeX50+3u/drMhf5v7MmlXxML1jDVtRM0IN+Db7UV84/6fG/Xu0ZZTa/9llRkU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766029759; c=relaxed/simple; bh=bP+MftIy5MZyKErTXJZOXlqqWq32ab3+bPjAzNt3ddw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ojq5HO4zOkzc+Yk8Ush0WOdmH28KH3lElJN1ZRYIWTpRhXjZsAnea82m0lVHB/Q23mIL/NoYMUChwT9ldn9RIqWcvWyXkmLM4ZU79zFBgYuk8Vu07Gn62HHwDiBoPFOi1efIrriafXvYal9w1BvUnWB5Hy6W7EE+uzAQLFCrqJs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8DxAfGueUNpo1wAAA--.1805S3; Thu, 18 Dec 2025 11:49:02 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowJAxXcKpeUNpwS4BAA--.2172S5; Thu, 18 Dec 2025 11:49:01 +0800 (CST) From: Bibo Mao To: Gonglei , "Michael S . Tsirkin" , Jason Wang , Eric Biggers , Xuan Zhuo , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , Herbert Xu , "David S. Miller" Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-crypto@vger.kernel.org, virtualization@lists.linux.dev Subject: [PATCH v4 7/9] crypto: virtio: Add req_data with structure virtio_crypto_sym_request Date: Thu, 18 Dec 2025 11:48:44 +0800 Message-Id: <20251218034846.948860-8-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20251218034846.948860-1-maobibo@loongson.cn> References: <20251218034846.948860-1-maobibo@loongson.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJAxXcKpeUNpwS4BAA--.2172S5 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Content-Type: text/plain; charset="utf-8" With normal encrypt/decrypt workflow, req_data with struct type virtio_crypto_op_data_req will be allocated. Here put req_data in virtio_crypto_sym_request, it is pre-allocated when encrypt/decrypt interface is called. Signed-off-by: Bibo Mao --- drivers/crypto/virtio/virtio_crypto_skcipher_algs.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c b/drivers/= crypto/virtio/virtio_crypto_skcipher_algs.c index 788d2d4a9b83..bf9fdf56c2a3 100644 --- a/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c +++ b/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c @@ -26,6 +26,7 @@ struct virtio_crypto_skcipher_ctx { =20 struct virtio_crypto_sym_request { struct virtio_crypto_request base; + struct virtio_crypto_op_data_req req_data; =20 /* Cipher or aead */ uint32_t type; @@ -350,14 +351,8 @@ __virtio_crypto_skcipher_do_req(struct virtio_crypto_s= ym_request *vc_sym_req, if (!sgs) return -ENOMEM; =20 - req_data =3D kzalloc_node(sizeof(*req_data), GFP_KERNEL, - dev_to_node(&vcrypto->vdev->dev)); - if (!req_data) { - kfree(sgs); - return -ENOMEM; - } - - vc_req->req_data =3D req_data; + req_data =3D &vc_sym_req->req_data; + vc_req->req_data =3D NULL; vc_sym_req->type =3D VIRTIO_CRYPTO_SYM_OP_CIPHER; /* Head of operation */ if (vc_sym_req->encrypt) { @@ -450,7 +445,7 @@ __virtio_crypto_skcipher_do_req(struct virtio_crypto_sy= m_request *vc_sym_req, free_iv: kfree_sensitive(iv); free: - kfree_sensitive(req_data); + memzero_explicit(req_data, sizeof(*req_data)); kfree(sgs); return err; } --=20 2.39.3