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Message-ID: <202309200143.Me2RTikv-lkp@intel.com>
Date:   Wed, 20 Sep 2023 01:26:27 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dan Raymond <draymond@...valley.net>, linux-kernel@...r.kernel.org,
        x86@...nel.org, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com
Cc:     oe-kbuild-all@...ts.linux.dev
Subject: Re: [PATCH v1] arch/x86: port I/O tracing on x86

Hi Dan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on be8b93b5cc7d533eb8c9b0590cdac055ecafe13a]

url:    https://github.com/intel-lab-lkp/linux/commits/Dan-Raymond/arch-x86-port-I-O-tracing-on-x86/20230919-015640
base:   be8b93b5cc7d533eb8c9b0590cdac055ecafe13a
patch link:    https://lore.kernel.org/r/14c27df7-12a3-e432-a741-17672185c092%40foxvalley.net
patch subject: [PATCH v1] arch/x86: port I/O tracing on x86
config: x86_64-buildonly-randconfig-001-20230919 (https://download.01.org/0day-ci/archive/20230920/202309200143.Me2RTikv-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230920/202309200143.Me2RTikv-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/202309200143.Me2RTikv-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/x86/lib/trace_portio.c:6:6: warning: no previous prototype for 'do_trace_portio_read' [-Wmissing-prototypes]
       6 | void do_trace_portio_read(u32 value, u16 port, char width, long ip_addr)
         |      ^~~~~~~~~~~~~~~~~~~~
>> arch/x86/lib/trace_portio.c:13:6: warning: no previous prototype for 'do_trace_portio_write' [-Wmissing-prototypes]
      13 | void do_trace_portio_write(u32 value, u16 port, char width, long ip_addr)
         |      ^~~~~~~~~~~~~~~~~~~~~


vim +/do_trace_portio_read +6 arch/x86/lib/trace_portio.c

     5	
   > 6	void do_trace_portio_read(u32 value, u16 port, char width, long ip_addr)
     7	{
     8		trace_portio_read(value, port, width, ip_addr);
     9	}
    10	EXPORT_SYMBOL_GPL(do_trace_portio_read);
    11	EXPORT_TRACEPOINT_SYMBOL_GPL(portio_read);
    12	
  > 13	void do_trace_portio_write(u32 value, u16 port, char width, long ip_addr)

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

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