From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 0E5BB3839B7; Thu, 20 Aug 2026 05:33:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787203987; cv=none; b=rDqxI8IK1KFbtoSvuO8+ODV3+Cd/+U5tHk6gvxVR6A4KraygbGy7R8UtM1MmYYdeLmYscxkDj06jnNmszXAV753gjBvQC7EsqmXCwi50Bgh1mV2m04od+kcC9O2sVGKJpiscJcaUnTkMgnkhiopfzusZLyJnt4rTNN74jfv7LTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787203987; c=relaxed/simple; bh=3S1bSnlBhWx4HK5AwtWT7IpvRgMAbGMSQk5Azw7D0/Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZqIWBAQYPVlzQIKqj5XAJUosPylB44n34gQlKJljnkJTHaVs3VnLKfq/EUQPn7bO+dt2DASc6bpy9lhKx64jcJM3e0U0CYQNqEwqU60gvZ4sXcJTkI12SFWmA0JPX2FInJ1Mk+CN4jCRTzMyxoIU4hQXh13s050FJESc6kklcSY= 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=OWat4R3G; arc=none smtp.client-ip=192.198.163.15 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="OWat4R3G" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1787203985; x=1818739985; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=3S1bSnlBhWx4HK5AwtWT7IpvRgMAbGMSQk5Azw7D0/Q=; b=OWat4R3GlSmMhLBnzpj1bJWf/+uPX7maVdzxpezdMANUC2OLa4hCvJ+E +eOaGgRtZP1ZyEUoelvZfqjNCMCR6bKEbAjQSRuw3wuKimykw5c2N5gZf AGyNvuL0MZdgnj7Dtcg8ynwgpI0QYk4YymorqzaB8VVXBr9HWl5cov31r Os7T/OQllaqtQWfAIzKUsiNFA3vYtaXfVgjMoh5C6/4n6POOMMmQ9nYmp BKzSRRQ8Osf/CIxtaax8b4Nz5OhLzw6ekFH3SIc/u1C9znwKfLTw7/u5o VMffzqgl/bggKb+8VrUzBRavmR57QWJnVsuZJnQd7iTpMTo+jlSr3//gg g==; X-CSE-ConnectionGUID: ZktltSYxSIG/pNmfsvOAng== X-CSE-MsgGUID: xE/x0W2iTVKnjCA8z/x+5w== X-IronPort-AV: E=McAfee;i="6800,10657,11880"; a="87850297" X-IronPort-AV: E=Sophos;i="6.25,232,1779174000"; d="scan'208";a="87850297" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2026 22:33:04 -0700 X-CSE-ConnectionGUID: 7cZX4p2jQnu1irIj4tXWwQ== X-CSE-MsgGUID: jgjBOSHGQgqyiWsPptTYkA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,232,1779174000"; d="scan'208";a="262055988" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by fmviesa010.fm.intel.com with ESMTP; 19 Aug 2026 22:33:01 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1wwvOc-00000000hx3-2mfN; Thu, 20 Aug 2026 05:32:58 +0000 Date: Thu, 20 Aug 2026 13:32:21 +0800 From: kernel test robot To: Steven Rostedt , LKML , Linux Trace Kernel Cc: oe-kbuild-all@lists.linux.dev, Anubhav Shelat , Masami Hiramatsu , Shivank Garg , Ackerley Tng , Fuad Tabba , Christian Brauner , Sean Christopherson Subject: Re: [PATCH v3] tracefs: Add read-only eventfs filesystem at /sys/kernel/events Message-ID: <202608201306.OB6m5zzX-lkp@intel.com> References: <20260810160708.3460a2fd@gandalf.local.home> Precedence: bulk X-Mailing-List: linux-trace-kernel@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: <20260810160708.3460a2fd@gandalf.local.home> Hi Steven, kernel test robot noticed the following build errors: [auto build test ERROR on v7.2] [also build test ERROR on next-20260819] [cannot apply to trace/for-next linus/master] [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/Steven-Rostedt/tracefs-Add-read-only-eventfs-filesystem-at-sys-kernel-events/20260810-160708 base: v7.2 patch link: https://lore.kernel.org/r/20260810160708.3460a2fd%40gandalf.local.home patch subject: [PATCH v3] tracefs: Add read-only eventfs filesystem at /sys/kernel/events config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20260820/202608201306.OB6m5zzX-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 16.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260820/202608201306.OB6m5zzX-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/202608201306.OB6m5zzX-lkp@intel.com/ All errors (new ones prefixed by >>): fs/tracefs/event_inode.c: In function 'eventfs_ro_fill_super': >> fs/tracefs/event_inode.c:38:23: error: 'EVENTFS_SUPER_MAGIC' undeclared (first use in this function) 38 | sb->s_magic = EVENTFS_SUPER_MAGIC; | ^~~~~~~~~~~~~~~~~~~ fs/tracefs/event_inode.c:38:23: note: each undeclared identifier is reported only once for each function it appears in vim +/EVENTFS_SUPER_MAGIC +38 fs/tracefs/event_inode.c 30 31 static int eventfs_ro_fill_super(struct super_block *sb, struct fs_context *fc) 32 { 33 struct inode *inode; 34 struct dentry *root; 35 36 sb->s_blocksize = PAGE_SIZE; 37 sb->s_blocksize_bits = PAGE_SHIFT; > 38 sb->s_magic = EVENTFS_SUPER_MAGIC; 39 sb->s_op = &eventfs_ro_super_operations; 40 sb->s_time_gran = 1; 41 sb->s_flags |= SB_RDONLY; 42 43 inode = new_inode(sb); 44 if (!inode) 45 return -ENOMEM; 46 47 inode->i_ino = 1; 48 inode->i_mode = S_IFDIR | 0555; 49 simple_inode_init_ts(inode); 50 inode->i_op = &simple_dir_inode_operations; 51 inode->i_fop = &simple_dir_operations; 52 set_nlink(inode, 2); 53 54 set_default_d_op(sb, &tracefs_dentry_operations); 55 56 root = d_make_root(inode); 57 if (!root) 58 return -ENOMEM; 59 60 sb->s_root = root; 61 62 return 0; 63 } 64 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki