linux-kernel - Re: [PATCH 02/10] rv: Let the reactors take care of buffers

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Message-ID: <202503132350.aM5NZ6Vh-lkp@intel.com>
Date: Fri, 14 Mar 2025 00:07:57 +0800
From: kernel test robot <lkp@...el.com>
To: Nam Cao <namcao@...utronix.de>, Steven Rostedt <rostedt@...dmis.org>,
	Gabriele Monaco <gmonaco@...hat.com>, john.ogness@...utronix.de,
	linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Nam Cao <namcao@...utronix.de>, Petr Mladek <pmladek@...e.com>,
	Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: Re: [PATCH 02/10] rv: Let the reactors take care of buffers

Hi Nam,

kernel test robot noticed the following build errors:

[auto build test ERROR on trace/for-next]
[also build test ERROR on tip/x86/core tip/x86/mm linus/master v6.14-rc6 next-20250313]
[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/Nam-Cao/rv-Add-undef-TRACE_INCLUDE_FILE/20250312-011043
base:   https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link:    https://lore.kernel.org/r/90868f1dd49680ec63c961ec8c72ceb64f1af091.1741708239.git.namcao%40linutronix.de
patch subject: [PATCH 02/10] rv: Let the reactors take care of buffers
config: parisc-randconfig-002-20250313 (https://download.01.org/0day-ci/archive/20250313/202503132350.aM5NZ6Vh-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250313/202503132350.aM5NZ6Vh-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/202503132350.aM5NZ6Vh-lkp@intel.com/

All errors (new ones prefixed by >>):

   kernel/trace/rv/reactor_printk.c: In function 'rv_printk_reaction':
>> kernel/trace/rv/reactor_printk.c:20:9: error: implicit declaration of function 'vprintk_deferred'; did you mean '_printk_deferred'? [-Wimplicit-function-declaration]
      20 |         vprintk_deferred(msg, args);
         |         ^~~~~~~~~~~~~~~~
         |         _printk_deferred


vim +20 kernel/trace/rv/reactor_printk.c

    14	
    15	static void rv_printk_reaction(const char *msg, ...)
    16	{
    17		va_list args;
    18	
    19		va_start(args, msg);
  > 20		vprintk_deferred(msg, args);
    21		va_end(args);
    22	}
    23	

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