From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 6B79E31A7F3; Thu, 16 Oct 2025 11:37:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760614647; cv=none; b=lQlUcxxuUZ9p3Y9wEQUobInD6RpCFJ2O/w14p4oiv+edXok/j+nkze5gi0mL6bnRr6CDLAJ6tFqi+Jc3uglmSnoYtn9/+YUNWCnesPUOpOWwRg9msajV1wneJnLM0hTd/yF7srUDI5heg82pRO0PoaPQbD0oDMiQ1/vZTXNQGqA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760614647; c=relaxed/simple; bh=v/p5WbwRu7MI/kgIQR21ZD5+uRNrgnKQRlHjro5dlgg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=GsMsLEtzmRQvGjSdt6iIctCD6w2C9m/K0EjZDhG6myTD6Wzn9+vn6q7ZhBzhiILYqvVAsZAJDu8sgMGP0+h7lUXNzYsml5wHvbptk+B0CIU6jfKexIHwbWmLrSSnr2Gn+4GAvwksiPE9D7XQEl1p4JCsMFwh7AJ/74bPyfeJKj8= 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=C64OeU9u; arc=none smtp.client-ip=198.175.65.13 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="C64OeU9u" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760614646; x=1792150646; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=v/p5WbwRu7MI/kgIQR21ZD5+uRNrgnKQRlHjro5dlgg=; b=C64OeU9uV+bw4ZLAh/i0VZgMig2tpRmWbtPoAiAwp9laSIAOsqXSOjGw rb4xG7nvCPLmFpOlCt4o0tWwwfD+rd8sWLrEoGhRjmPV1wlz9xLmyA+CX 8tAhMUcXVIu7sNH4VZrbxGakMMSAMx99CqLEDmNmWVxfi9RJBLWycAhbn aM5LzdUYrCNuqi7zJGNYyGqCzhvjUtKU27T7OpUdZkBxdOqzK4lWTz0f7 J4G8aR9Ir891A73dSmsSgTjOtocEIWKMI2d3/Q3bTS79FDDt6m+GMdgv6 ojqYyhhh8gPLQbq78mJna2+LDD96orUYyppKDT8KyA/+QXZWJaPJd+6qS A==; X-CSE-ConnectionGUID: wNbtJxorTSi5Fw3Qoq/+hQ== X-CSE-MsgGUID: t9SluvHjRlSnIlxR4fGhew== X-IronPort-AV: E=McAfee;i="6800,10657,11583"; a="73915742" X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="73915742" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2025 04:37:26 -0700 X-CSE-ConnectionGUID: nDMvKVvDQC+P6DB3xtuWrw== X-CSE-MsgGUID: WiXBWk7XTBaRTcb235v5bA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="182228181" Received: from lkp-server02.sh.intel.com (HELO 66d7546c76b2) ([10.239.97.151]) by orviesa007.jf.intel.com with ESMTP; 16 Oct 2025 04:37:20 -0700 Received: from kbuild by 66d7546c76b2 with local (Exim 4.96) (envelope-from ) id 1v9MIH-0004kr-35; Thu, 16 Oct 2025 11:37:17 +0000 Date: Thu, 16 Oct 2025 19:36:33 +0800 From: kernel test robot To: Steven Rostedt , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Linux Memory Management List , Peter Zijlstra , Namhyung Kim , Takaya Saeki , Tom Zanussi , Thomas Gleixner , Ian Rogers , Douglas Raillard , Arnaldo Carvalho de Melo , Jiri Olsa , Adrian Hunter , Ingo Molnar Subject: Re: [PATCH v3 13/13] tracing: Have persistent ring buffer print syscalls normally Message-ID: <202510161956.5wnA6TUc-lkp@intel.com> References: <20251015173550.225723717@kernel.org> Precedence: bulk X-Mailing-List: linux-perf-users@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: <20251015173550.225723717@kernel.org> Hi Steven, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.18-rc1 next-20251015] [cannot apply to trace/for-next acme/perf/core] [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/tracing-Make-trace_user_fault_read-exposed-to-rest-of-tracing/20251016-014059 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20251015173550.225723717%40kernel.org patch subject: [PATCH v3 13/13] tracing: Have persistent ring buffer print syscalls normally config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20251016/202510161956.5wnA6TUc-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251016/202510161956.5wnA6TUc-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/202510161956.5wnA6TUc-lkp@intel.com/ All errors (new ones prefixed by >>): kernel/trace/trace.c: In function 'print_trace_fmt': >> kernel/trace/trace.c:4258:47: error: 'enter_syscall_print_funcs' undeclared (first use in this function) 4258 | (event->funcs != &enter_syscall_print_funcs) && | ^~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/trace.c:4258:47: note: each undeclared identifier is reported only once for each function it appears in >> kernel/trace/trace.c:4259:47: error: 'exit_syscall_print_funcs' undeclared (first use in this function) 4259 | (event->funcs != &exit_syscall_print_funcs)) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/trace.c: In function 'tracer_alloc_buffers': kernel/trace/trace.c:11443:39: error: 'CONFIG_TRACE_SYSCALL_BUF_SIZE_DEFAULT' undeclared (first use in this function) 11443 | global_trace.syscall_buf_sz = CONFIG_TRACE_SYSCALL_BUF_SIZE_DEFAULT; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/enter_syscall_print_funcs +4258 kernel/trace/trace.c 4222 4223 static enum print_line_t print_trace_fmt(struct trace_iterator *iter) 4224 { 4225 struct trace_array *tr = iter->tr; 4226 struct trace_seq *s = &iter->seq; 4227 unsigned long sym_flags = (tr->trace_flags & TRACE_ITER_SYM_MASK); 4228 struct trace_entry *entry; 4229 struct trace_event *event; 4230 4231 entry = iter->ent; 4232 4233 test_cpu_buff_start(iter); 4234 4235 event = ftrace_find_event(entry->type); 4236 4237 if (tr->trace_flags & TRACE_ITER_CONTEXT_INFO) { 4238 if (iter->iter_flags & TRACE_FILE_LAT_FMT) 4239 trace_print_lat_context(iter); 4240 else 4241 trace_print_context(iter); 4242 } 4243 4244 if (trace_seq_has_overflowed(s)) 4245 return TRACE_TYPE_PARTIAL_LINE; 4246 4247 if (event) { 4248 if (tr->trace_flags & TRACE_ITER_FIELDS) 4249 return print_event_fields(iter, event); 4250 /* 4251 * For TRACE_EVENT() events, the print_fmt is not 4252 * safe to use if the array has delta offsets 4253 * Force printing via the fields. 4254 */ 4255 if ((tr->text_delta)) { 4256 /* ftrace and system call events are still OK */ 4257 if ((event->type > __TRACE_LAST_TYPE) && > 4258 (event->funcs != &enter_syscall_print_funcs) && > 4259 (event->funcs != &exit_syscall_print_funcs)) 4260 return print_event_fields(iter, event); 4261 } 4262 return event->funcs->trace(iter, sym_flags, event); 4263 } 4264 4265 trace_seq_printf(s, "Unknown type %d\n", entry->type); 4266 4267 return trace_handle_return(s); 4268 } 4269 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki