From patchwork Fri Apr 21 05:05:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Leech X-Patchwork-Id: 13219476 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 0D3FFC77B75 for ; Fri, 21 Apr 2023 05:06:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230384AbjDUFGs (ORCPT ); Fri, 21 Apr 2023 01:06:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230038AbjDUFGo (ORCPT ); Fri, 21 Apr 2023 01:06:44 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8C476A5B for ; Thu, 20 Apr 2023 22:05:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1682053557; 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=50GPcrWZS0LRGuULqlAbl1KOy4D8eYkSmtRPN+fm0h8=; b=h/eJXyAhxt1ppqQ635KsCZYGzz/A4UD7BN/vOJDlZCpIWDZwtx2HEevswMrBs92reFD8iu 19Lw1zqH6M8fbAIv3HLy7dpQaFZjx63oGtw5at3MEcj+sHdKfzINxSDFprlH9oW2OouPUg 9TELCtUe6I0gaJ1MEKvTSrcjqtRSwUE= 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-671-ck5vV_jhNAaV2HPrlrxmIA-1; Fri, 21 Apr 2023 01:05:54 -0400 X-MC-Unique: ck5vV_jhNAaV2HPrlrxmIA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 0C730800B35; Fri, 21 Apr 2023 05:05:54 +0000 (UTC) Received: from localhost.redhat.com (unknown [10.2.16.204]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7994E4020BED; Fri, 21 Apr 2023 05:05:53 +0000 (UTC) From: Chris Leech To: Lee Duncan , linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com Cc: Lee Duncan , Chris Leech Subject: [PATCH] iscsi iser: fix iser, allow virtual endpoints again Date: Thu, 20 Apr 2023 22:05:19 -0700 Message-Id: <20230421050521.49903-2-cleech@redhat.com> In-Reply-To: <20230421050521.49903-1-cleech@redhat.com> References: <20230420164232.GA27885@localhost> <20230421050521.49903-1-cleech@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org iSER creates endpoints before hosts and sessions, so we need to keep compatibility with virtual device paths and not always expect a parent host. Signed-off-by: Chris Leech --- drivers/scsi/scsi_transport_iscsi.c | 9 ++++++--- include/scsi/scsi_transport_iscsi.h | 3 ++- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 41f0de2165e0..b8e451a8c76c 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -189,8 +189,10 @@ static struct net *iscsi_host_net(struct iscsi_cls_host *ihost) static struct net *iscsi_endpoint_net(struct iscsi_endpoint *ep) { struct Scsi_Host *shost = iscsi_endpoint_to_shost(ep); - struct iscsi_cls_host *ihost = shost->shost_data; - + struct iscsi_cls_host *ihost; + if (!shost) + return &init_net; + ihost = shost->shost_data; return iscsi_host_net(ihost); } @@ -252,7 +254,8 @@ iscsi_create_endpoint(struct Scsi_Host *shost, int dd_size) ep->id = id; ep->dev.class = &iscsi_endpoint_class; - ep->dev.parent = &shost->shost_gendev; + if (shost) + ep->dev.parent = &shost->shost_gendev; dev_set_name(&ep->dev, "ep-%d", id); err = device_register(&ep->dev); if (err) diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index d233618a17de..bb6734e900e0 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -293,8 +293,9 @@ struct iscsi_cls_session { #define iscsi_session_to_shost(_session) \ dev_to_shost(_session->dev.parent) +/* endpoints might not have a parent host (iSER) */ #define iscsi_endpoint_to_shost(_ep) \ - dev_to_shost(_ep->dev.parent) + dev_to_shost(&_ep->dev) extern struct net *iscsi_sess_net(struct iscsi_cls_session *session);