From patchwork Thu May 12 10:45:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12847517 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 E1A45C4332F for ; Thu, 12 May 2022 10:45:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352768AbiELKpi (ORCPT ); Thu, 12 May 2022 06:45:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352763AbiELKpb (ORCPT ); Thu, 12 May 2022 06:45:31 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43E9022A2EB; Thu, 12 May 2022 03:45:28 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id B834141466; Thu, 12 May 2022 10:45:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received:received; s= mta-01; t=1652352324; x=1654166725; bh=eMcusZIZij9/puDzQDoImsDCE +kpbW/EDYKwS0EKAVo=; b=vv8uksPbj3/vqBQQ/6G4KRCcEJY/8jG37r5wZ/WFF O3kSZ91nOGBCP/ICjlDpmUPoM588zWJLp1Z6D0AulFzHFn6LQvyeKmVvt8qXJt2P K2YqYHfiZxdq3PHESYTvJLkrEOeunIzSlkLTUKPhJeqWujITFU8zI/cJR+7KKZoC +8= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EVQYWFxHMcPy; Thu, 12 May 2022 13:45:24 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id C415441452; Thu, 12 May 2022 13:45:24 +0300 (MSK) Received: from T-EXCH-08.corp.yadro.com (172.17.11.58) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Thu, 12 May 2022 13:45:24 +0300 Received: from NB-591.corp.yadro.com (10.178.114.42) by T-EXCH-08.corp.yadro.com (172.17.11.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.986.22; Thu, 12 May 2022 13:45:23 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: Mike Christie , , , Dmitry Bogdanov , Roman Bolshakov , Konstantin Shelekhin Subject: [PATCH v4 1/3] scsi: target: iscsi: Add upcast helpers Date: Thu, 12 May 2022 13:45:06 +0300 Message-ID: <20220512104508.8680-2-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220512104508.8680-1-d.bogdanov@yadro.com> References: <20220512104508.8680-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.178.114.42] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org iscsi target is cluttered with open-coded container_of conversions from se_nacl to iscsi_node_acl. The code could be cleaned by introducing a helper - to_iscsi_nacl() (similar to other helpers in target core). While at it, make another iscsi conversion helper consistent and rename iscsi_tpg() helper to to_iscsi_tpg(). Reviewed-by: Roman Bolshakov Reviewed-by: Konstantin Shelekhin Signed-off-by: Dmitry Bogdanov --- drivers/target/iscsi/iscsi_target_configfs.c | 82 +++++++------------- drivers/target/iscsi/iscsi_target_nego.c | 14 ++-- drivers/target/iscsi/iscsi_target_tpg.c | 3 +- include/target/iscsi/iscsi_target_core.h | 12 +++ 4 files changed, 49 insertions(+), 62 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index 0cedcfe207b5..322e027ec74b 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -210,7 +210,7 @@ static struct se_tpg_np *lio_target_call_addnptotpg( return ERR_PTR(ret); } - tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); + tpg = to_iscsi_tpg(se_tpg); ret = iscsit_get_tpg(tpg); if (ret < 0) return ERR_PTR(-EINVAL); @@ -281,9 +281,7 @@ static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\ char *page) \ { \ struct se_node_acl *se_nacl = attrib_to_nacl(item); \ - struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ - se_node_acl); \ - \ + struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); \ return sprintf(page, "%u\n", nacl->node_attrib.name); \ } \ \ @@ -291,8 +289,7 @@ static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\ const char *page, size_t count) \ { \ struct se_node_acl *se_nacl = attrib_to_nacl(item); \ - struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ - se_node_acl); \ + struct iscsi_node_acl *nacl = to_iscsi_nacl(se_nacl); \ u32 val; \ int ret; \ \ @@ -377,15 +374,14 @@ static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ - return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ + return __iscsi_nacl_auth_##name##_show(to_iscsi_nacl(nacl), page); \ } \ static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ - return __iscsi_nacl_auth_##name##_store(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page, count); \ + return __iscsi_nacl_auth_##name##_store(to_iscsi_nacl(nacl), \ + page, count); \ } \ \ CONFIGFS_ATTR(iscsi_nacl_auth_, name) @@ -417,8 +413,7 @@ static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_node_acl *nacl = auth_to_nacl(item); \ - return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ + return __iscsi_nacl_auth_##name##_show(to_iscsi_nacl(nacl), page); \ } \ \ CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name) @@ -623,8 +618,7 @@ static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item, { struct se_node_acl *se_nacl = acl_to_nacl(item); struct se_portal_group *se_tpg = se_nacl->se_tpg; - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); struct config_item *acl_ci, *tpg_ci, *wwn_ci; u32 cmdsn_depth = 0; int ret; @@ -700,8 +694,7 @@ static struct configfs_attribute *lio_target_initiator_attrs[] = { static int lio_target_init_nodeacl(struct se_node_acl *se_nacl, const char *name) { - struct iscsi_node_acl *acl = - container_of(se_nacl, struct iscsi_node_acl, se_node_acl); + struct iscsi_node_acl *acl = to_iscsi_nacl(se_nacl); config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, "iscsi_sess_stats", &iscsi_stat_sess_cit); @@ -720,8 +713,7 @@ static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_portal_group *se_tpg = attrib_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ ssize_t rb; \ \ if (iscsit_get_tpg(tpg) < 0) \ @@ -736,8 +728,7 @@ static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\ const char *page, size_t count) \ { \ struct se_portal_group *se_tpg = attrib_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ u32 val; \ int ret; \ \ @@ -800,8 +791,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ char *page) \ { \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ @@ -813,8 +803,7 @@ static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\ const char *page, size_t count) \ { \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ @@ -861,8 +850,7 @@ DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ char *page) \ { \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ \ if (!capable(CAP_SYS_ADMIN)) \ @@ -900,8 +888,7 @@ static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \ char *page) \ { \ struct se_portal_group *se_tpg = param_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ struct iscsi_param *param; \ ssize_t rb; \ \ @@ -923,8 +910,7 @@ static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \ const char *page, size_t count) \ { \ struct se_portal_group *se_tpg = param_to_tpg(item); \ - struct iscsi_portal_group *tpg = container_of(se_tpg, \ - struct iscsi_portal_group, tpg_se_tpg); \ + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); \ char *buf; \ int ret, len; \ \ @@ -1073,8 +1059,7 @@ static struct se_portal_group *lio_target_tiqn_addtpg(struct se_wwn *wwn, static int lio_target_tiqn_enabletpg(struct se_portal_group *se_tpg, bool enable) { - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); int ret; ret = iscsit_get_tpg(tpg); @@ -1106,7 +1091,7 @@ static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) struct iscsi_portal_group *tpg; struct iscsi_tiqn *tiqn; - tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); + tpg = to_iscsi_tpg(se_tpg); tiqn = tpg->tpg_tiqn; /* * iscsit_tpg_del_portal_group() assumes force=1 @@ -1412,46 +1397,41 @@ static void lio_aborted_task(struct se_cmd *se_cmd) cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); } -static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg) -{ - return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); -} - static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn; + return to_iscsi_tpg(se_tpg)->tpg_tiqn->tiqn; } static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpgt; + return to_iscsi_tpg(se_tpg)->tpgt; } static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth; + return to_iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth; } static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls; + return to_iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls; } static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls; + return to_iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls; } static int lio_tpg_check_demo_mode_write_protect( struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect; + return to_iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect; } static int lio_tpg_check_prod_mode_write_protect( struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect; + return to_iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect; } static int lio_tpg_check_prot_fabric_only( @@ -1461,9 +1441,9 @@ static int lio_tpg_check_prot_fabric_only( * Only report fabric_prot_type if t10_pi has also been enabled * for incoming ib_isert sessions. */ - if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi) + if (!to_iscsi_tpg(se_tpg)->tpg_attrib.t10_pi) return 0; - return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type; + return to_iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type; } /* @@ -1500,16 +1480,14 @@ static void lio_tpg_close_session(struct se_session *se_sess) static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) { - return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index; + return to_iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index; } static void lio_set_default_node_attributes(struct se_node_acl *se_acl) { - struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, - se_node_acl); + struct iscsi_node_acl *acl = to_iscsi_nacl(se_acl); struct se_portal_group *se_tpg = se_acl->se_tpg; - struct iscsi_portal_group *tpg = container_of(se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + struct iscsi_portal_group *tpg = to_iscsi_tpg(se_tpg); acl->node_attrib.nacl = acl; iscsit_set_default_node_attribues(acl, tpg); diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index c0ed6f8e5c5b..f0769708e4fb 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -104,8 +104,8 @@ static u32 iscsi_handle_authentication( { struct iscsi_session *sess = conn->sess; struct iscsi_node_auth *auth; - struct iscsi_node_acl *iscsi_nacl; - struct iscsi_portal_group *iscsi_tpg; + struct iscsi_node_acl *nacl; + struct iscsi_portal_group *tpg; struct se_node_acl *se_nacl; if (!sess->sess_ops->SessionType) { @@ -120,15 +120,13 @@ static u32 iscsi_handle_authentication( } if (se_nacl->dynamic_node_acl) { - iscsi_tpg = container_of(se_nacl->se_tpg, - struct iscsi_portal_group, tpg_se_tpg); + tpg = to_iscsi_tpg(se_nacl->se_tpg); - auth = &iscsi_tpg->tpg_demo_auth; + auth = &tpg->tpg_demo_auth; } else { - iscsi_nacl = container_of(se_nacl, struct iscsi_node_acl, - se_node_acl); + nacl = to_iscsi_nacl(se_nacl); - auth = &iscsi_nacl->node_auth; + auth = &nacl->node_auth; } } else { /* diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 2d5cf1714ae0..b721c988f13e 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -394,8 +394,7 @@ struct iscsi_node_attrib *iscsit_tpg_get_node_attrib( { struct se_session *se_sess = sess->se_sess; struct se_node_acl *se_nacl = se_sess->se_node_acl; - struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, - se_node_acl); + struct iscsi_node_acl *acl = to_iscsi_nacl(se_nacl); return &acl->node_attrib; } diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h index adc87de0362b..dc6fa62b74de 100644 --- a/include/target/iscsi/iscsi_target_core.h +++ b/include/target/iscsi/iscsi_target_core.h @@ -758,6 +758,12 @@ struct iscsi_node_acl { struct iscsi_node_stat_grps node_stat_grps; }; +static inline struct iscsi_node_acl * +to_iscsi_nacl(struct se_node_acl *se_nacl) +{ + return container_of(se_nacl, struct iscsi_node_acl, se_node_acl); +} + struct iscsi_tpg_attrib { u32 authentication; u32 login_timeout; @@ -839,6 +845,12 @@ struct iscsi_portal_group { struct list_head tpg_list; } ____cacheline_aligned; +static inline struct iscsi_portal_group * +to_iscsi_tpg(struct se_portal_group *se_tpg) +{ + return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); +} + struct iscsi_wwn_stat_grps { struct config_group iscsi_stat_group; struct config_group iscsi_instance_group;