From patchwork Tue Sep 5 02:48:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xingui Yang X-Patchwork-Id: 720339 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 39312CA0FFB for ; Tue, 5 Sep 2023 16:06:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236064AbjIEQGQ (ORCPT ); Tue, 5 Sep 2023 12:06:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343933AbjIEC5a (ORCPT ); Mon, 4 Sep 2023 22:57:30 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EDA37CCB; Mon, 4 Sep 2023 19:57:25 -0700 (PDT) Received: from dggpemm500012.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Rfqp021wczNnB3; Tue, 5 Sep 2023 10:53:44 +0800 (CST) Received: from localhost.localdomain (10.50.163.32) by dggpemm500012.china.huawei.com (7.185.36.89) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Tue, 5 Sep 2023 10:57:23 +0800 From: Xingui Yang To: , , , CC: , , , , , , , , , , , , , , , , Subject: [PATCH v6 3/3] scsi: qla2xxx: Use DEFINE_SHOW_STORE_ATTRIBUTE() helper for debugfs Date: Tue, 5 Sep 2023 02:48:35 +0000 Message-ID: <20230905024835.43219-4-yangxingui@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230905024835.43219-1-yangxingui@huawei.com> References: <20230905024835.43219-1-yangxingui@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.50.163.32] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500012.china.huawei.com (7.185.36.89) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use DEFINE_SHOW_STORE_ATTRIBUTE() helper for read-write file to reduce some duplicated code. Signed-off-by: Luo Jiaxing Co-developed-by: Xingui Yang Signed-off-by: Xingui Yang Reviewed-by: Andy Shevchenko --- drivers/scsi/qla2xxx/qla_dfs.c | 59 ++++------------------------------ 1 file changed, 7 insertions(+), 52 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index f060e593685d..debb14d71e8a 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -528,51 +528,22 @@ qla_dfs_naqp_show(struct seq_file *s, void *unused) * * Example for creating "TEST" sysfs file: * 1. struct qla_hw_data { ... struct dentry *dfs_TEST; } - * 2. QLA_DFS_SETUP_RD(TEST, scsi_qla_host_t); + * 2. QLA_DFS_SETUP_RD(TEST); * 3. In qla2x00_dfs_setup(): * QLA_DFS_CREATE_FILE(ha, TEST, 0600, ha->dfs_dir, vha); * 4. In qla2x00_dfs_remove(): * QLA_DFS_REMOVE_FILE(ha, TEST); */ -#define QLA_DFS_SETUP_RD(_name, _ctx_struct) \ -static int \ -qla_dfs_##_name##_open(struct inode *inode, struct file *file) \ -{ \ - _ctx_struct *__ctx = inode->i_private; \ - \ - return single_open(file, qla_dfs_##_name##_show, __ctx); \ -} \ - \ -static const struct file_operations qla_dfs_##_name##_ops = { \ - .open = qla_dfs_##_name##_open, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ -}; +#define QLA_DFS_SETUP_RD(_name) DEFINE_SHOW_ATTRIBUTE(qla_dfs_##_name) -#define QLA_DFS_SETUP_RW(_name, _ctx_struct) \ -static int \ -qla_dfs_##_name##_open(struct inode *inode, struct file *file) \ -{ \ - _ctx_struct *__ctx = inode->i_private; \ - \ - return single_open(file, qla_dfs_##_name##_show, __ctx); \ -} \ - \ -static const struct file_operations qla_dfs_##_name##_ops = { \ - .open = qla_dfs_##_name##_open, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ - .write = qla_dfs_##_name##_write, \ -}; +#define QLA_DFS_SETUP_RW(_name) DEFINE_SHOW_STORE_ATTRIBUTE(qla_dfs_##_name) #define QLA_DFS_ROOT_CREATE_FILE(_name, _perm, _ctx) \ do { \ if (!qla_dfs_##_name) \ qla_dfs_##_name = debugfs_create_file(#_name, \ _perm, qla2x00_dfs_root, _ctx, \ - &qla_dfs_##_name##_ops); \ + &qla_dfs_##_name##_fops); \ } while (0) #define QLA_DFS_ROOT_REMOVE_FILE(_name) \ @@ -587,7 +558,7 @@ static const struct file_operations qla_dfs_##_name##_ops = { \ do { \ (_struct)->dfs_##_name = debugfs_create_file(#_name, \ _perm, _parent, _ctx, \ - &qla_dfs_##_name##_ops) \ + &qla_dfs_##_name##_fops) \ } while (0) #define QLA_DFS_REMOVE_FILE(_struct, _name) \ @@ -598,14 +569,6 @@ static const struct file_operations qla_dfs_##_name##_ops = { \ } \ } while (0) -static int -qla_dfs_naqp_open(struct inode *inode, struct file *file) -{ - struct scsi_qla_host *vha = inode->i_private; - - return single_open(file, qla_dfs_naqp_show, vha); -} - static ssize_t qla_dfs_naqp_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) @@ -653,15 +616,7 @@ qla_dfs_naqp_write(struct file *file, const char __user *buffer, kfree(buf); return rc; } - -static const struct file_operations dfs_naqp_ops = { - .open = qla_dfs_naqp_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = qla_dfs_naqp_write, -}; - +QLA_DFS_SETUP_RW(naqp); int qla2x00_dfs_setup(scsi_qla_host_t *vha) @@ -707,7 +662,7 @@ qla2x00_dfs_setup(scsi_qla_host_t *vha) if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) { ha->tgt.dfs_naqp = debugfs_create_file("naqp", - 0400, ha->dfs_dir, vha, &dfs_naqp_ops); + 0400, ha->dfs_dir, vha, &qla_dfs_naqp_fops); if (!ha->tgt.dfs_naqp) { ql_log(ql_log_warn, vha, 0xd011, "Unable to create debugFS naqp node.\n");