From patchwork Sat May 6 23:29:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Leech X-Patchwork-Id: 13233650 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 3E8FEC7EE22 for ; Sat, 6 May 2023 23:31:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229460AbjEFXbb (ORCPT ); Sat, 6 May 2023 19:31:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229778AbjEFXb1 (ORCPT ); Sat, 6 May 2023 19:31:27 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1C4D8A55 for ; Sat, 6 May 2023 16:30:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683415801; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=V+nHcWBThg87r9MWxGBVMEs5l/DzTXNHp2qWU+92EFI=; b=avenX7z6Re1kaYs+WTHVEKK8CQw2afIzStkhsoJE2lUlQL+5Yyx0sReJuTLrRGCUTAOUDe tGc6uP39TaPoOns7pY4u4Kfr5Yi8CV5MgiUB+fsDozXaeNsueEPlvTbghwqhH7pVL3s9ZH zBbfWXZXAsKh/mjPmJ1FgScOpXk9m50= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-636-kFcNSu0DPOi7v81CHisY-A-1; Sat, 06 May 2023 19:29:58 -0400 X-MC-Unique: kFcNSu0DPOi7v81CHisY-A-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4CDDE101A55C; Sat, 6 May 2023 23:29:58 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.2.16.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id B8A7535443; Sat, 6 May 2023 23:29:57 +0000 (UTC) From: Chris Leech To: Lee Duncan , linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Chris Leech Subject: [PATCH 07/11] iscsi: convert flashnode devices from bus to class Date: Sat, 6 May 2023 16:29:26 -0700 Message-Id: <20230506232930.195451-8-cleech@redhat.com> In-Reply-To: <20230506232930.195451-1-cleech@redhat.com> References: <20230506232930.195451-1-cleech@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan The flashnode session and connection devices should be filtered by net namespace along with the iscsi_host, but we can't do that with a bus device. As these don't use any of the bus matching functionality, they make more sense as a class device anyway. Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke Signed-off-by: Chris Leech --- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/scsi_transport_iscsi.c | 36 ++++++++++++----------------- include/scsi/scsi_transport_iscsi.h | 2 ++ 3 files changed, 18 insertions(+), 22 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 55fe6aca93d0..bc06020565e4 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -7185,7 +7185,7 @@ static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) { struct iscsi_bus_flash_session *fnode_sess; - if (!iscsi_flashnode_bus_match(dev, NULL)) + if (!iscsi_is_flashnode_session_dev(dev)) return 0; fnode_sess = iscsi_dev_to_flash_session(dev); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index d8b05f3361c8..2fae14aa291e 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1081,6 +1081,12 @@ static const struct device_type iscsi_flashnode_sess_dev_type = { .release = iscsi_flashnode_sess_release, }; +bool iscsi_is_flashnode_session_dev(struct device *dev) +{ + return dev->type == &iscsi_flashnode_sess_dev_type; +} +EXPORT_SYMBOL_GPL(iscsi_is_flashnode_session_dev); + /* flash node connection attrs show */ #define iscsi_flashnode_conn_attr_show(type, name, param) \ static ssize_t \ @@ -1267,20 +1273,8 @@ static const struct device_type iscsi_flashnode_conn_dev_type = { .release = iscsi_flashnode_conn_release, }; -static struct bus_type iscsi_flashnode_bus; - -int iscsi_flashnode_bus_match(struct device *dev, - struct device_driver *drv) -{ - if (dev->bus == &iscsi_flashnode_bus) - return 1; - return 0; -} -EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match); - -static struct bus_type iscsi_flashnode_bus = { +static struct class iscsi_flashnode_bus = { .name = "iscsi_flashnode", - .match = &iscsi_flashnode_bus_match, }; /** @@ -1311,7 +1305,7 @@ iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, fnode_sess->transport = transport; fnode_sess->target_id = index; fnode_sess->dev.type = &iscsi_flashnode_sess_dev_type; - fnode_sess->dev.bus = &iscsi_flashnode_bus; + fnode_sess->dev.class = &iscsi_flashnode_bus; fnode_sess->dev.parent = &shost->shost_gendev; dev_set_name(&fnode_sess->dev, "flashnode_sess-%u:%u", shost->host_no, index); @@ -1359,7 +1353,7 @@ iscsi_create_flashnode_conn(struct Scsi_Host *shost, fnode_conn->transport = transport; fnode_conn->dev.type = &iscsi_flashnode_conn_dev_type; - fnode_conn->dev.bus = &iscsi_flashnode_bus; + fnode_conn->dev.class = &iscsi_flashnode_bus; fnode_conn->dev.parent = &fnode_sess->dev; dev_set_name(&fnode_conn->dev, "flashnode_conn-%u:%u:0", shost->host_no, fnode_sess->target_id); @@ -1392,7 +1386,7 @@ EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn); */ static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data) { - return dev->bus == &iscsi_flashnode_bus; + return dev->type == &iscsi_flashnode_conn_dev_type; } static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn) @@ -1406,7 +1400,7 @@ static int flashnode_match_index(struct device *dev, void *data) struct iscsi_bus_flash_session *fnode_sess = NULL; int ret = 0; - if (!iscsi_flashnode_bus_match(dev, NULL)) + if (dev->type != &iscsi_flashnode_sess_dev_type) goto exit_match_index; fnode_sess = iscsi_dev_to_flash_session(dev); @@ -1512,7 +1506,7 @@ EXPORT_SYMBOL_GPL(iscsi_destroy_flashnode_sess); static int iscsi_iter_destroy_flashnode_fn(struct device *dev, void *data) { - if (!iscsi_flashnode_bus_match(dev, NULL)) + if (dev->type != &iscsi_flashnode_sess_dev_type) return 0; iscsi_destroy_flashnode_sess(iscsi_dev_to_flash_session(dev)); @@ -5235,7 +5229,7 @@ static __init int iscsi_transport_init(void) if (err) goto unregister_conn_class; - err = bus_register(&iscsi_flashnode_bus); + err = class_register(&iscsi_flashnode_bus); if (err) goto unregister_session_class; @@ -5258,7 +5252,7 @@ static __init int iscsi_transport_init(void) unregister_pernet_subsys: unregister_pernet_subsys(&iscsi_net_ops); unregister_flashnode_bus: - bus_unregister(&iscsi_flashnode_bus); + class_unregister(&iscsi_flashnode_bus); unregister_session_class: transport_class_unregister(&iscsi_session_class); unregister_conn_class: @@ -5278,7 +5272,7 @@ static void __exit iscsi_transport_exit(void) { destroy_workqueue(iscsi_conn_cleanup_workq); unregister_pernet_subsys(&iscsi_net_ops); - bus_unregister(&iscsi_flashnode_bus); + class_unregister(&iscsi_flashnode_bus); transport_class_unregister(&iscsi_connection_class); transport_class_unregister(&iscsi_session_class); transport_class_unregister(&iscsi_host_class); diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 83bcdd2bcde4..f9d003753f11 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -524,6 +524,8 @@ iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, extern struct device * iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); +extern bool iscsi_is_flashnode_session_dev(struct device *dev); + extern char * iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state);