linux-kernel - Re: [PATCH] ftrace: Implement :mod: cache filtering on kernel command line

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Message-ID: <202501110319.xY9ltUxL-lkp@intel.com>
Date: Sat, 11 Jan 2025 03:35:49 +0800
From: kernel test robot <lkp@...el.com>
To: Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	jochensp@...hen.sprickerhof.de
Subject: Re: [PATCH] ftrace: Implement :mod: cache filtering on kernel
 command line

Hi Steven,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.13-rc6 next-20250110]
[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/ftrace-Implement-mod-cache-filtering-on-kernel-command-line/20250110-064649
base:   linus/master
patch link:    https://lore.kernel.org/r/20250109174639.32e6f43a%40gandalf.local.home
patch subject: [PATCH] ftrace: Implement :mod: cache filtering on kernel command line
config: i386-randconfig-012-20250111 (https://download.01.org/0day-ci/archive/20250111/202501110319.xY9ltUxL-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250111/202501110319.xY9ltUxL-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501110319.xY9ltUxL-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/trace/trace.c:10664:28: warning: no previous prototype for function 'trace_get_global_array' [-Wmissing-prototypes]
    10664 | __init struct trace_array *trace_get_global_array(void)
          |                            ^
   kernel/trace/trace.c:10664:8: note: declare 'static' if the function is not intended to be used outside of this translation unit
    10664 | __init struct trace_array *trace_get_global_array(void)
          |        ^
          |        static 
   1 warning generated.


vim +/trace_get_global_array +10664 kernel/trace/trace.c

 10662	
 10663	/* Used to set module cached ftrace filtering at boot up */
 10664	__init struct trace_array *trace_get_global_array(void)
 10665	{
 10666		return &global_trace;
 10667	}
 10668	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki