linux-kernel - [jpoimboe:objtool-run 11/29] arch/mips/kernel/process.c:46:1: warning: 'noreturn' function does return

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Date:   Thu, 14 Apr 2022 09:06:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [jpoimboe:objtool-run 11/29] arch/mips/kernel/process.c:46:1:
 warning: 'noreturn' function does return

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git objtool-run
head:   6d60b700d2179c68f134da8eda4d9879d460d1a3
commit: f5a10245e0eab8e93b77aa796fdf404d10b32468 [11/29] sched: Mark arch_cpu_idle_dead() __noreturn
config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20220414/202204140853.6K6wh9eM-lkp@intel.com/config)
compiler: mips-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git/commit/?id=f5a10245e0eab8e93b77aa796fdf404d10b32468
        git remote add jpoimboe https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git
        git fetch --no-tags jpoimboe objtool-run
        git checkout f5a10245e0eab8e93b77aa796fdf404d10b32468
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/kernel/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   arch/mips/kernel/process.c: In function 'arch_cpu_idle_dead':
>> arch/mips/kernel/process.c:46:1: warning: 'noreturn' function does return
      46 | }
         | ^


vim +/noreturn +46 arch/mips/kernel/process.c

^1da177e4c3f41 Linus Torvalds  2005-04-16  41  
cdbedc61c8d012 Thomas Gleixner 2013-03-21  42  #ifdef CONFIG_HOTPLUG_CPU
cdbedc61c8d012 Thomas Gleixner 2013-03-21  43  void arch_cpu_idle_dead(void)
^1da177e4c3f41 Linus Torvalds  2005-04-16  44  {
cdbedc61c8d012 Thomas Gleixner 2013-03-21  45  	play_dead();
cdbedc61c8d012 Thomas Gleixner 2013-03-21 @46  }
cdbedc61c8d012 Thomas Gleixner 2013-03-21  47  #endif
1b2bc75c1bde65 Ralf Baechle    2009-06-23  48  

:::::: The code at line 46 was first introduced by commit
:::::: cdbedc61c8d0122ad682815936f0d11df1fe5f57 mips: Use generic idle loop

:::::: TO: Thomas Gleixner <tglx@...utronix.de>
:::::: CC: Thomas Gleixner <tglx@...utronix.de>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp