From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 855663382F0; Sat, 31 Jan 2026 15:54:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769874880; cv=none; b=Kma/vTm1Km4OffWuqTkCr3ZuBVFMLQ1TbuOeTKqzNJIlEYIYocQEB8r2BNS9onq/BsQfA8OqT0UdyoVpl1kSQlyH2hmX5Y2Zpv8ihKlAPg2GwR8h0KeqZZmIVs1m7h9rafpZ2X7uPxuPpqnsBLltCHp9+tRRVvMc1DQinWFaxiw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769874880; c=relaxed/simple; bh=yP/+lWu8w6TVpcU/sK04du+syKfA7fdOXqbErdv8SGk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OX/e6bAr9LzpVAYmpWDr9Y8WX23aaqBzg4PbX+BlWUX9hlwyGu/ThPF12Fw3kt9euM8alhbF0J9q8SUXEXuhr38QOFExlRWrsRhEJuDRAj9b3tOdVyd6Mz4BNYd/KcERuywFIT+Kr40v7bolu4nrT5jU/7Ol66O0tIx5YO9s5fw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=f37NOcNy; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="f37NOcNy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769874878; x=1801410878; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=yP/+lWu8w6TVpcU/sK04du+syKfA7fdOXqbErdv8SGk=; b=f37NOcNyYVKnSTwbctSd3O7TVzwn+GF3zQeo7lLNnGfVkx+ipP8pXdtQ Y8ee44Hxqr3eGHvHIsQJ/z54AMTpftq5v+SYKbawL70IWJ6J5TfldzTHT 9pLzzN3rcKdJTlS9ha1YRlFrqHDB4x7ZSwCFmVXP1IEBy99BpmaoIVqdq Jo7u6PGANeg42bkZ+4whbDE79j33fARD5Jt0AB1xsj65pYNn8s2/geXlA cif4rFQxZRF7SRvsDwYyvtL+nqOIYIVIIruA8Blcbub1yPRfHwOK5ZUjq hLt8yaxmSfORHWxWFK8wotuDp6Fw2QLzPhMequke3RxanYQUDZORtH176 w==; X-CSE-ConnectionGUID: 4YvMylxZTTuK3wJZZXlwcQ== X-CSE-MsgGUID: +hk1m2nSS9i9ox5RZgmG+Q== X-IronPort-AV: E=McAfee;i="6800,10657,11687"; a="70118250" X-IronPort-AV: E=Sophos;i="6.21,265,1763452800"; d="scan'208";a="70118250" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Jan 2026 07:54:38 -0800 X-CSE-ConnectionGUID: mNM1mRCKRvO2CXNfpAHMEg== X-CSE-MsgGUID: HLs4j+UdQ/C/xg8xorcjOg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,265,1763452800"; d="scan'208";a="208350889" Received: from igk-lkp-server01.igk.intel.com (HELO afc5bfd7f602) ([10.211.93.152]) by orviesa010.jf.intel.com with ESMTP; 31 Jan 2026 07:54:16 -0800 Received: from kbuild by afc5bfd7f602 with local (Exim 4.98.2) (envelope-from ) id 1vmDIc-000000002iX-0fps; Sat, 31 Jan 2026 15:54:14 +0000 Date: Sat, 31 Jan 2026 16:54:04 +0100 From: kernel test robot To: nspmangalore@gmail.com, linux-cifs@vger.kernel.org, smfrench@gmail.com, pc@manguebit.org, bharathsm@microsoft.com Cc: oe-kbuild-all@lists.linux.dev, Shyam Prasad N , stable@vger.kernel.org Subject: Re: [PATCH 2/2] cifs: Fix locking usage for tcon fields Message-ID: <202601311634.9WVpg186-lkp@intel.com> References: <20260131080239.943483-2-sprasad@microsoft.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260131080239.943483-2-sprasad@microsoft.com> Hi, kernel test robot noticed the following build errors: [auto build test ERROR on cifs/for-next] [also build test ERROR on linus/master v6.19-rc7 next-20260130] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/nspmangalore-gmail-com/cifs-Fix-locking-usage-for-tcon-fields/20260131-160419 base: git://git.samba.org/sfrench/cifs-2.6.git for-next patch link: https://lore.kernel.org/r/20260131080239.943483-2-sprasad%40microsoft.com patch subject: [PATCH 2/2] cifs: Fix locking usage for tcon fields config: s390-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260131/202601311634.9WVpg186-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260131/202601311634.9WVpg186-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202601311634.9WVpg186-lkp@intel.com/ All errors (new ones prefixed by >>): fs/smb/client/smb2ops.c: In function 'smb2_get_dfs_refer': >> fs/smb/client/smb2ops.c:3178:17: error: too few arguments to function 'cifs_put_tcon'; expected 2, have 1 3178 | cifs_put_tcon(tcon); | ^~~~~~~~~~~~~ In file included from fs/smb/client/smb2ops.c:20: fs/smb/client/cifsproto.h:273:6: note: declared here 273 | void cifs_put_tcon(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace); | ^~~~~~~~~~~~~ vim +/cifs_put_tcon +3178 fs/smb/client/smb2ops.c 3078 3079 static int 3080 smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, 3081 const char *search_name, 3082 struct dfs_info3_param **target_nodes, 3083 unsigned int *num_of_nodes, 3084 const struct nls_table *nls_codepage, int remap) 3085 { 3086 int rc; 3087 __le16 *utf16_path = NULL; 3088 int utf16_path_len = 0; 3089 struct cifs_tcon *tcon; 3090 struct fsctl_get_dfs_referral_req *dfs_req = NULL; 3091 struct get_dfs_referral_rsp *dfs_rsp = NULL; 3092 u32 dfs_req_size = 0, dfs_rsp_size = 0; 3093 int retry_once = 0; 3094 3095 cifs_dbg(FYI, "%s: path: %s\n", __func__, search_name); 3096 3097 /* 3098 * Try to use the IPC tcon, otherwise just use any 3099 */ 3100 tcon = ses->tcon_ipc; 3101 if (tcon == NULL) { 3102 spin_lock(&cifs_tcp_ses_lock); 3103 tcon = list_first_entry_or_null(&ses->tcon_list, 3104 struct cifs_tcon, 3105 tcon_list); 3106 if (tcon) { 3107 spin_lock(&tcon->tc_lock); 3108 tcon->tc_count++; 3109 spin_unlock(&tcon->tc_lock); 3110 trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count, 3111 netfs_trace_tcon_ref_get_dfs_refer); 3112 } 3113 spin_unlock(&cifs_tcp_ses_lock); 3114 } 3115 3116 if (tcon == NULL) { 3117 cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n", 3118 ses); 3119 rc = -ENOTCONN; 3120 goto out; 3121 } 3122 3123 utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX, 3124 &utf16_path_len, 3125 nls_codepage, remap); 3126 if (!utf16_path) { 3127 rc = -ENOMEM; 3128 goto out; 3129 } 3130 3131 dfs_req_size = sizeof(*dfs_req) + utf16_path_len; 3132 dfs_req = kzalloc(dfs_req_size, GFP_KERNEL); 3133 if (!dfs_req) { 3134 rc = -ENOMEM; 3135 goto out; 3136 } 3137 3138 /* Highest DFS referral version understood */ 3139 dfs_req->MaxReferralLevel = DFS_VERSION; 3140 3141 /* Path to resolve in an UTF-16 null-terminated string */ 3142 memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len); 3143 3144 for (;;) { 3145 rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, 3146 FSCTL_DFS_GET_REFERRALS, 3147 (char *)dfs_req, dfs_req_size, CIFSMaxBufSize, 3148 (char **)&dfs_rsp, &dfs_rsp_size); 3149 if (fatal_signal_pending(current)) { 3150 rc = -EINTR; 3151 break; 3152 } 3153 if (!is_retryable_error(rc) || retry_once++) 3154 break; 3155 usleep_range(512, 2048); 3156 } 3157 3158 if (!rc && !dfs_rsp) 3159 rc = smb_EIO(smb_eio_trace_dfsref_no_rsp); 3160 if (rc) { 3161 if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) 3162 cifs_tcon_dbg(FYI, "%s: ioctl error: rc=%d\n", __func__, rc); 3163 goto out; 3164 } 3165 3166 rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size, 3167 num_of_nodes, target_nodes, 3168 nls_codepage, remap, search_name, 3169 true /* is_unicode */); 3170 if (rc && rc != -ENOENT) { 3171 cifs_tcon_dbg(VFS, "%s: failed to parse DFS referral %s: %d\n", 3172 __func__, search_name, rc); 3173 } 3174 3175 out: 3176 if (tcon && !tcon->ipc) { 3177 /* ipc tcons are not refcounted */ > 3178 cifs_put_tcon(tcon); 3179 trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count, 3180 netfs_trace_tcon_ref_dec_dfs_refer); 3181 } 3182 kfree(utf16_path); 3183 kfree(dfs_req); 3184 kfree(dfs_rsp); 3185 return rc; 3186 } 3187 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki