From nobody Thu May 7 21:55:14 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 702B5C433FE for ; Wed, 18 May 2022 13:24:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237789AbiERNYe (ORCPT ); Wed, 18 May 2022 09:24:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237757AbiERNYb (ORCPT ); Wed, 18 May 2022 09:24:31 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4475169E0B; Wed, 18 May 2022 06:24:28 -0700 (PDT) Received: from canpemm500005.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4L3D9H5JmhzCsmx; Wed, 18 May 2022 21:19:31 +0800 (CST) Received: from huawei.com (10.67.174.96) by canpemm500005.china.huawei.com (7.192.104.229) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 18 May 2022 21:24:26 +0800 From: Zhang Jianhua To: , CC: , Subject: [PATCH -next] fs-verity: remove unused parameter desc_size in fsverity_create_info() Date: Wed, 18 May 2022 21:22:56 +0800 Message-ID: <20220518132256.2297655-1-chris.zjh@huawei.com> X-Mailer: git-send-email 2.31.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.96] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To canpemm500005.china.huawei.com (7.192.104.229) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The parameter desc_size in fsverity_create_info() is useless and it is not referenced anywhere. The greatest meaning of desc_size here is to indecate the size of struct fsverity_descriptor and futher calculate the size of signature. However, the desc->sig_size can do it also and it is indeed, so remove it. Therefore, it is no need to acquire desc_size by fsverity_get_descriptor() in ensure_verity_info(), so remove the parameter desc_ret in fsverity_get_descriptor() too. Signed-off-by: Zhang Jianhua --- fs/verity/enable.c | 2 +- fs/verity/fsverity_private.h | 6 ++---- fs/verity/open.c | 12 ++++-------- fs/verity/read_metadata.c | 5 ++--- 4 files changed, 9 insertions(+), 16 deletions(-) diff --git a/fs/verity/enable.c b/fs/verity/enable.c index 075dc0aa5416..df6b499bf6a1 100644 --- a/fs/verity/enable.c +++ b/fs/verity/enable.c @@ -280,7 +280,7 @@ static int enable_verity(struct file *filp, * from disk. This is simpler, and it serves as an extra check that the * metadata we're writing is valid before actually enabling verity. */ - vi =3D fsverity_create_info(inode, desc, desc_size); + vi =3D fsverity_create_info(inode, desc); if (IS_ERR(vi)) { err =3D PTR_ERR(vi); goto rollback; diff --git a/fs/verity/fsverity_private.h b/fs/verity/fsverity_private.h index c6fb62e0ef1a..629785c95007 100644 --- a/fs/verity/fsverity_private.h +++ b/fs/verity/fsverity_private.h @@ -115,16 +115,14 @@ int fsverity_init_merkle_tree_params(struct merkle_tr= ee_params *params, const u8 *salt, size_t salt_size); =20 struct fsverity_info *fsverity_create_info(const struct inode *inode, - struct fsverity_descriptor *desc, - size_t desc_size); + struct fsverity_descriptor *desc); =20 void fsverity_set_info(struct inode *inode, struct fsverity_info *vi); =20 void fsverity_free_info(struct fsverity_info *vi); =20 int fsverity_get_descriptor(struct inode *inode, - struct fsverity_descriptor **desc_ret, - size_t *desc_size_ret); + struct fsverity_descriptor **desc_ret); =20 int __init fsverity_init_info_cache(void); void __init fsverity_exit_info_cache(void); diff --git a/fs/verity/open.c b/fs/verity/open.c index 92df87f5fa38..81ff94442f7b 100644 --- a/fs/verity/open.c +++ b/fs/verity/open.c @@ -147,8 +147,7 @@ static int compute_file_digest(struct fsverity_hash_alg= *hash_alg, * fsverity_descriptor must have already undergone basic validation. */ struct fsverity_info *fsverity_create_info(const struct inode *inode, - struct fsverity_descriptor *desc, - size_t desc_size) + struct fsverity_descriptor *desc) { struct fsverity_info *vi; int err; @@ -264,8 +263,7 @@ static bool validate_fsverity_descriptor(struct inode *= inode, * the filesystem, and do basic validation of it. */ int fsverity_get_descriptor(struct inode *inode, - struct fsverity_descriptor **desc_ret, - size_t *desc_size_ret) + struct fsverity_descriptor **desc_ret) { int res; struct fsverity_descriptor *desc; @@ -297,7 +295,6 @@ int fsverity_get_descriptor(struct inode *inode, } =20 *desc_ret =3D desc; - *desc_size_ret =3D res; return 0; } =20 @@ -306,17 +303,16 @@ static int ensure_verity_info(struct inode *inode) { struct fsverity_info *vi =3D fsverity_get_info(inode); struct fsverity_descriptor *desc; - size_t desc_size; int err; =20 if (vi) return 0; =20 - err =3D fsverity_get_descriptor(inode, &desc, &desc_size); + err =3D fsverity_get_descriptor(inode, &desc); if (err) return err; =20 - vi =3D fsverity_create_info(inode, desc, desc_size); + vi =3D fsverity_create_info(inode, desc); if (IS_ERR(vi)) { err =3D PTR_ERR(vi); goto out_free_desc; diff --git a/fs/verity/read_metadata.c b/fs/verity/read_metadata.c index 7e2d0c7bdf0d..6ee849dc7bc1 100644 --- a/fs/verity/read_metadata.c +++ b/fs/verity/read_metadata.c @@ -101,7 +101,7 @@ static int fsverity_read_descriptor(struct inode *inode, size_t desc_size; int res; =20 - res =3D fsverity_get_descriptor(inode, &desc, &desc_size); + res =3D fsverity_get_descriptor(inode, &desc); if (res) return res; =20 @@ -119,10 +119,9 @@ static int fsverity_read_signature(struct inode *inode, void __user *buf, u64 offset, int length) { struct fsverity_descriptor *desc; - size_t desc_size; int res; =20 - res =3D fsverity_get_descriptor(inode, &desc, &desc_size); + res =3D fsverity_get_descriptor(inode, &desc); if (res) return res; =20 --=20 2.31.0