linux-kernel - [paulmck-rcu:dev.2023.10.31a 15/36] arch/x86/kernel/nmi.c:441:6: warning: no previous declaration for 'set_nmi

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Date:   Thu, 2 Nov 2023 04:37:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [paulmck-rcu:dev.2023.10.31a 15/36] arch/x86/kernel/nmi.c:441:6:
 warning: no previous declaration for 'set_nmi_torture'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2023.10.31a
head:   cb3ad05f321d3777c7ff86574b39f58abbf9f626
commit: 15ff657545e64ac97a69bccacc286422bc9ab0c4 [15/36] EXP x86/nmi: Add a set_nmi_torture() function to control NMI testing
config: i386-defconfig (https://download.01.org/0day-ci/archive/20231102/202311020436.slzakv5l-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231102/202311020436.slzakv5l-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/202311020436.slzakv5l-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/nmi.c:441:6: warning: no previous declaration for 'set_nmi_torture' [-Wmissing-declarations]
    void set_nmi_torture(int nmi_delay_in, bool nmi_halt1_in, bool nmi_halt2_in, bool nmi_halt3_in)
         ^~~~~~~~~~~~~~~


vim +/set_nmi_torture +441 arch/x86/kernel/nmi.c

   439	
   440	/* Set the test values as desired. */
 > 441	void set_nmi_torture(int nmi_delay_in, bool nmi_halt1_in, bool nmi_halt2_in, bool nmi_halt3_in)
   442	{
   443		WRITE_ONCE(nmi_delay, nmi_delay_in);
   444		WRITE_ONCE(nmi_halt1, nmi_halt1_in);
   445		WRITE_ONCE(nmi_halt2, nmi_halt2_in);
   446		WRITE_ONCE(nmi_halt3, nmi_halt3_in);
   447		pr_info("%s: Set NMI test parameters nmi_delay=%d nmi_halt1=%d nmi_halt2=%d nmi_halt3=%d\n",
   448			__func__, nmi_delay, nmi_halt1, nmi_halt2, nmi_halt3);
   449	}
   450	EXPORT_SYMBOL_GPL(set_nmi_torture);
   451	

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