From patchwork Wed Mar 13 10:40:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Shyam Prasad N X-Patchwork-Id: 1911657 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=Io1OYrKT; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45d1:ec00::1; helo=ny.mirrors.kernel.org; envelope-from=linux-cifs+bounces-1449-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org [IPv6:2604:1380:45d1:ec00::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Tvn9W6M6Jz1ydl for ; Wed, 13 Mar 2024 21:41:03 +1100 (AEDT) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 0E49F1C219A8 for ; Wed, 13 Mar 2024 10:41:02 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 73DB43D0D0; Wed, 13 Mar 2024 10:40:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Io1OYrKT" X-Original-To: linux-cifs@vger.kernel.org Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E66213D0DD; Wed, 13 Mar 2024 10:40:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710326458; cv=none; b=m5zWf5JG+C5U0fEdEgyuDasajYcG+pwe59YKn74fqH420CrApuOO/EPGzAGUAjL3jGKyaxkdx7+vtutM960owQfRXqSgIKgYzktPmlYaxW/lczo1OYmsYEiCkOb303tO70gTQZLtINysixZhhZL4VNsAGRkYw8CZzUxmpHNPFkA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710326458; c=relaxed/simple; bh=UNelH5wTjTT8i5mdCLk5Ttahrbgzioby/Lc2B/x0uB8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=Zm/BxzLj8QcvWk+UKMngjHCkHFbQTfAAs25d+e2ijEegtdtf4ZlRW6Gg3OExw6xkZ5d+5KIYa9IC+L03A3+v27EW7jnuqpeikghsocyfP03KFm6wh63YNc4vvlnHaltJGzVy+B4hsd2uv2fVBy4vzQ3Sh0gVW4GOIOoLNFq5MMA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Io1OYrKT; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-1dd8dd198d0so26675945ad.3; Wed, 13 Mar 2024 03:40:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1710326455; x=1710931255; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=C5s1glts79sNex9bVlpA0c1lBh0VMrNrvQIOC8soHhM=; b=Io1OYrKToCHGcZY+JOKAMfXdCa4FdCZkhhAuMpLW2qLSjdn0oXKPOYmoQPVp7bBnBq F1nuadO9h/KzW9HGqnwLOIKZHw36zX5Jc/t0aQrxOtAKKPv8c1VH6KT/mINbdoDWvV3E M8SyOU0muVPXbx5WDx/bqfctEfzN/a98gRWLR5ic/qaitOb6KM5vob+7U87yx0WrNFaQ i8FGBtqEy0hw4/oLz0gev4WTB00rusH9+Y90ZJ8ekmCfNBUH0UZscOLApLE0tN/hnZ+d manD/TvLXg6cH9DEbY0qgjP0oG42Z3ic2mJf58ytEq2OxXrxx4BDJv1fVhFk3nN8I2Vq F0oA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710326455; x=1710931255; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=C5s1glts79sNex9bVlpA0c1lBh0VMrNrvQIOC8soHhM=; b=jyBBiwnSKpJilfn/xNBnhudSWFYoslnwsViNb3fOrCiYKSyxFNV3PhDHtJDcjn2xYD kp5HU4Q80W/Y8JQFIAmpVzMthI5ffOrqBelid8RNPwq+nOzyOro3DaQKZnpvoEeIhriw dGSdg6ZZskbqbs9Wn/F8IZa/qYucwg6ugxKzPP+RVOmb7bTb1m9Q8+vhWNoJWcEzGCAe 3MPYayeUKdnIfJXtLoX+u9U2C0QDOgd2Dt1+nrSuKf5Y+PNO3O7qJ+WWGQOIZ2ftkJlw tYJqkgjgDg1tnLDZoJ4k9hkijT5fY/C0GGHSktJd4Xhaux7yyKzBpcKgxHI8fOm847fJ aqOw== X-Forwarded-Encrypted: i=1; AJvYcCX9lGrA0ALIwnF+jVFvhoD2K+O6zn7UQ/qVUzm4kEJ+/vFCurjTCd3wx0d9ugVe/CpO1aT2GoqMMAj1GwkdrmD1qFqCqgwA X-Gm-Message-State: AOJu0YxFX3K/fyYbKT/yzzPBePyMkSVolxrIxsZMiOWIYwW/3mE/GJDH w7UJfOY80F+W4GV7ypURBhMDl9/WYCGrbjxizKqa+Bc87k8ID9AdXPow8UmzBXs= X-Google-Smtp-Source: AGHT+IGDLrLMn9X0u3tp4D6RyjCsWeTOhWxeZ5pHgx6xYzwGOuN/E1yeatexknW60aQPWKk8kkRn8Q== X-Received: by 2002:a17:902:d54e:b0:1dd:7e30:4b15 with SMTP id z14-20020a170902d54e00b001dd7e304b15mr13831222plf.29.1710326455054; Wed, 13 Mar 2024 03:40:55 -0700 (PDT) Received: from lindev-local-latest.corp.microsoft.com ([2404:f801:8028:1:7e0e:5dff:fea8:2c14]) by smtp.gmail.com with ESMTPSA id u6-20020a170902e80600b001dd88cf204dsm7175433plg.80.2024.03.13.03.40.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Mar 2024 03:40:54 -0700 (PDT) From: nspmangalore@gmail.com X-Google-Original-From: sprasad@microsoft.com To: linux-cifs@vger.kernel.org, smfrench@gmail.com, pc@manguebit.com, bharathsm@microsoft.com Cc: Shyam Prasad N , Stable , =?utf-8?b?SmFuIMSMZXJtw6Fr?= Subject: [PATCH 1/2] cifs: reduce warning log level for server not advertising interfaces Date: Wed, 13 Mar 2024 10:40:40 +0000 Message-Id: <20240313104041.188204-1-sprasad@microsoft.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Shyam Prasad N Several users have reported this log getting dumped too regularly to kernel log. The likely root cause has been identified, and it suggests that this situation is expected for some configurations (for example SMB2.1). Since the function returns appropriately even for such cases, it is fairly harmless to make this a debug log. When needed, the verbosity can be increased to capture this log. Cc: Stable Reported-by: Jan Čermák Signed-off-by: Shyam Prasad N --- fs/smb/client/sess.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c index 8f37373fd333..37cdf5b55108 100644 --- a/fs/smb/client/sess.c +++ b/fs/smb/client/sess.c @@ -230,7 +230,7 @@ int cifs_try_adding_channels(struct cifs_ses *ses) spin_lock(&ses->iface_lock); if (!ses->iface_count) { spin_unlock(&ses->iface_lock); - cifs_dbg(VFS, "server %s does not advertise interfaces\n", + cifs_dbg(FYI, "server %s does not advertise interfaces\n", ses->server->hostname); break; } @@ -396,7 +396,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) spin_lock(&ses->iface_lock); if (!ses->iface_count) { spin_unlock(&ses->iface_lock); - cifs_dbg(VFS, "server %s does not advertise interfaces\n", ses->server->hostname); + cifs_dbg(FYI, "server %s does not advertise interfaces\n", ses->server->hostname); return; } From patchwork Wed Mar 13 10:40:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Shyam Prasad N X-Patchwork-Id: 1911658 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=V4KOQBJJ; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=139.178.88.99; helo=sv.mirrors.kernel.org; envelope-from=linux-cifs+bounces-1450-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org [139.178.88.99]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Tvn9X4rBvz23qj for ; Wed, 13 Mar 2024 21:41:04 +1100 (AEDT) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 1EC39282B1F for ; Wed, 13 Mar 2024 10:41:03 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 49B143D39F; Wed, 13 Mar 2024 10:41:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="V4KOQBJJ" X-Original-To: linux-cifs@vger.kernel.org Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7D73383BD; Wed, 13 Mar 2024 10:40:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710326461; cv=none; b=Pr65I3rbWwyCCnqVXL/xlr5gYzxqZVxGZVZQUnwvChbcyqMDrHCjRZc/NLxC6rqWAn2NXURAl1+S7DI6ZpMoi4neo40oYhxlZU5xsr+l8MungYDFT43C6OHOT4av+d3ZI93KYxmx8Qf+LfXlEkCYUM8S0H0p/NzbG7yZ80mbLe0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710326461; c=relaxed/simple; bh=iniw4FjfzHJdtwpcTqrZL65yCg8M9Kq+nWaVRTEzJ7c=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=LGSPW6FtZPdPksZK8sI21aLClX0Lw2g4IUKrXtPZ6uVRkA2T8T56MZVwlDu/9Px//q3XXOvBy+b15sbFF1b9OfRwVvTX+KLH8b9HIGaL/iAL9K41e2im8Rid7SHwURR0gfuxyXcRrO6N6M39hRq+QyuQWcYoAyxE9eGSFhHNpp8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=V4KOQBJJ; arc=none smtp.client-ip=209.85.214.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pl1-f171.google.com with SMTP id d9443c01a7336-1dd7df835a8so36844315ad.1; Wed, 13 Mar 2024 03:40:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1710326458; x=1710931258; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=6MTmoXI1DvsvyziwsWc47N2vchUh9twoshfIbZ2A0NI=; b=V4KOQBJJPM9XSDSh0WHQR/Ev9Cm6dsXrgyOGNxIV9qwnyG7KNaMXn7MDdUwRxrQwMk JGiV3B5KI9vaXZXphjIC8FwAOxqlwhRxpHukupc1auC0S4kO0v+5E+O5gbSsOAOcNBZt DzUstrH1GQSIRFhvpC9Aii02Tdc05zawSoKRYsGlIfDQz6GvogmL8vJGpl/QngmakT8N N7mTHFKIxTVLCgS6QQInAbLWKwOg4ibRi+lSBB93HesOEnC86tadUemRMF7eZ2Mjajfg JBhH8yIDaeV9t0XdcPf1GBCNjUzT8y0SpSkI/PwPmuzWrUDpR7iDEZnQcokWiuKokQoA D/Pg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710326458; x=1710931258; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6MTmoXI1DvsvyziwsWc47N2vchUh9twoshfIbZ2A0NI=; b=wyoEXZomTlb6fk0hiNR/3lG66GhByGTcda1h2cgnLRaTLhe5J1u0msWjt+wxvC29cm gLi4Rdke5UoWzhx7b0+BKGp8FWOHaMnFQw/44FRR3iQijzMFLVZ+zZmxSBj+RTJmAzRa R1K66TXApRN50tbCWC0Z7r9fRVXLFofQVwX7z4GkY6HgLvM2V811aG4rSz1mFQ2U6K29 KslSDWqBDiHZg3QpCDti1TLYEtQ83PW8SuiG3IJl74fdercHQDrZesL5uE5ZCp44bORv KbSV/6COL5hJDkkLqgFA1ZJH2H2cW79jlGz1DBteMst8KiLMWJ9lglXT5FL1bSmXjdDl lYng== X-Forwarded-Encrypted: i=1; AJvYcCXrEHhWLcdMVSn1T8qYBAmil+xpIeJzJGtve6rC8ITLSm3Pe9cq7t2SuWzZYdJiteAnvDAh3uBet26pmgpQRj5jhXZePdbp X-Gm-Message-State: AOJu0Yyg5rOmTEmw90VEhoRL/ZJuXxS/x5zSbWjlgho2BH5mo4dGKm2J BZhtw4OuT7AoF9KKofzl/8bpsox1PQc2YnihNZ0khruskzW5nmceqIZIw/3E+tA= X-Google-Smtp-Source: AGHT+IHLGc6WF2afTyIgZU+HNVN527Kh1r1dFBHrijZ8ZZIu5s966ZxkKGm5flnZSAJGAa7AJpwM1g== X-Received: by 2002:a17:902:f813:b0:1db:7c5e:f07c with SMTP id ix19-20020a170902f81300b001db7c5ef07cmr2573491plb.66.1710326458008; Wed, 13 Mar 2024 03:40:58 -0700 (PDT) Received: from lindev-local-latest.corp.microsoft.com ([2404:f801:8028:1:7e0e:5dff:fea8:2c14]) by smtp.gmail.com with ESMTPSA id u6-20020a170902e80600b001dd88cf204dsm7175433plg.80.2024.03.13.03.40.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Mar 2024 03:40:57 -0700 (PDT) From: nspmangalore@gmail.com X-Google-Original-From: sprasad@microsoft.com To: linux-cifs@vger.kernel.org, smfrench@gmail.com, pc@manguebit.com, bharathsm@microsoft.com Cc: Shyam Prasad N , Stable , =?utf-8?b?SmFuIMSMZXJtw6Fr?= Subject: [PATCH 2/2] cifs: make sure server interfaces are requested only for SMB3+ Date: Wed, 13 Mar 2024 10:40:41 +0000 Message-Id: <20240313104041.188204-2-sprasad@microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240313104041.188204-1-sprasad@microsoft.com> References: <20240313104041.188204-1-sprasad@microsoft.com> Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Shyam Prasad N Some code paths for querying server interfaces make a false assumption that it will only get called for SMB3+. Since this function now can get called from a generic code paths, the correct thing to do is to have specific handler for this functionality per SMB dialect, and call this handler. This change adds such a handler and implements this handler only for SMB 3.0 and 3.1.1. Cc: Stable Cc: Jan Čermák Reported-by: Paulo Alcantara Signed-off-by: Shyam Prasad N --- fs/smb/client/cifsglob.h | 3 +++ fs/smb/client/connect.c | 6 +++++- fs/smb/client/smb2ops.c | 2 ++ fs/smb/client/smb2pdu.c | 5 +++-- 4 files changed, 13 insertions(+), 3 deletions(-) diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 53c75cfb33ab..b29b57ab9807 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -346,6 +346,9 @@ struct smb_version_operations { /* informational QFS call */ void (*qfs_tcon)(const unsigned int, struct cifs_tcon *, struct cifs_sb_info *); + /* query for server interfaces */ + int (*query_server_interfaces)(const unsigned int, struct cifs_tcon *, + bool); /* check if a path is accessible or not */ int (*is_path_accessible)(const unsigned int, struct cifs_tcon *, struct cifs_sb_info *, const char *); diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index ac9595504f4b..234160460615 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -123,12 +123,16 @@ static void smb2_query_server_interfaces(struct work_struct *work) struct cifs_tcon *tcon = container_of(work, struct cifs_tcon, query_interfaces.work); + struct TCP_Server_Info *server = tcon->ses->server; /* * query server network interfaces, in case they change */ + if (!server->ops->query_server_interfaces) + return; + xid = get_xid(); - rc = SMB3_request_interfaces(xid, tcon, false); + rc = server->ops->query_server_interfaces(xid, tcon, false); free_xid(xid); if (rc) { diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 4695433fcf39..3b8896987197 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -5538,6 +5538,7 @@ struct smb_version_operations smb30_operations = { .tree_connect = SMB2_tcon, .tree_disconnect = SMB2_tdis, .qfs_tcon = smb3_qfs_tcon, + .query_server_interfaces = SMB3_request_interfaces, .is_path_accessible = smb2_is_path_accessible, .can_echo = smb2_can_echo, .echo = SMB2_echo, @@ -5653,6 +5654,7 @@ struct smb_version_operations smb311_operations = { .tree_connect = SMB2_tcon, .tree_disconnect = SMB2_tdis, .qfs_tcon = smb3_qfs_tcon, + .query_server_interfaces = SMB3_request_interfaces, .is_path_accessible = smb2_is_path_accessible, .can_echo = smb2_can_echo, .echo = SMB2_echo, diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c index 608ee05491e2..4fa47c59cc04 100644 --- a/fs/smb/client/smb2pdu.c +++ b/fs/smb/client/smb2pdu.c @@ -409,14 +409,15 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon, spin_unlock(&ses->ses_lock); if (!rc && - (server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) { + (server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL) && + server->ops->query_server_interfaces) { mutex_unlock(&ses->session_mutex); /* * query server network interfaces, in case they change */ xid = get_xid(); - rc = SMB3_request_interfaces(xid, tcon, false); + rc = server->ops->query_server_interfaces(xid, tcon, false); free_xid(xid); if (rc == -EOPNOTSUPP && ses->chan_count > 1) {