linux-kernel - Re: [PATCH 2/7] x86/tracing: pass ftrace_regs to function_graph

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Message-ID: <202409051620.5YBbYREt-lkp@intel.com>
Date: Thu, 5 Sep 2024 16:58:07 +0800
From: kernel test robot <lkp@...el.com>
To: Sven Schnelle <svens@...ux.ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH 2/7] x86/tracing: pass ftrace_regs to
 function_graph_enter()

Hi Sven,

kernel test robot noticed the following build warnings:

[auto build test WARNING on s390/features]
[also build test WARNING on tip/x86/core linus/master v6.11-rc6 next-20240904]
[cannot apply to rostedt-trace/for-next rostedt-trace/for-next-urgent]
[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/Sven-Schnelle/tracing-add-ftrace_regs-to-function_graph_enter/20240904-150232
base:   https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features
patch link:    https://lore.kernel.org/r/20240904065908.1009086-3-svens%40linux.ibm.com
patch subject: [PATCH 2/7] x86/tracing: pass ftrace_regs to function_graph_enter()
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20240905/202409051620.5YBbYREt-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240905/202409051620.5YBbYREt-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/202409051620.5YBbYREt-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/ftrace.h:23,
                    from include/linux/kprobes.h:28,
                    from arch/x86/kernel/process_64.c:35:
>> arch/x86/include/asm/ftrace.h:108:64: warning: 'struct ftrace_regs' declared inside parameter list will not be visible outside of this definition or declaration
     108 |                            unsigned long frame_pointer, struct ftrace_regs *regs);
         |                                                                ^~~~~~~~~~~


vim +108 arch/x86/include/asm/ftrace.h

   106	
   107	void prepare_ftrace_return(unsigned long ip, unsigned long *parent,
 > 108				   unsigned long frame_pointer, struct ftrace_regs *regs);
   109	

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