linux-kernel - [tip:timers/core 13/13] kernel/time/posix-cpu-timers.c:1308:66: warning: parameter 'timr' set but not used

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Message-ID: <202304201736.fc1wH7zC-lkp@intel.com>
Date:   Thu, 20 Apr 2023 18:05:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        x86@...nel.org, Frederic Weisbecker <frederic@...nel.org>
Subject: [tip:timers/core 13/13] kernel/time/posix-cpu-timers.c:1308:66:
 warning: parameter 'timr' set but not used

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
head:   2aaae4bf41b101f7e58e8b06778b1cd9a1dddf94
commit: 2aaae4bf41b101f7e58e8b06778b1cd9a1dddf94 [13/13] posix-cpu-timers: Implement the missing timer_wait_running callback
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230420/202304201736.fc1wH7zC-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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/tip/tip.git/commit/?id=2aaae4bf41b101f7e58e8b06778b1cd9a1dddf94
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip timers/core
        git checkout 2aaae4bf41b101f7e58e8b06778b1cd9a1dddf94
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash kernel/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304201736.fc1wH7zC-lkp@intel.com/

All warnings (new ones prefixed by >>):

   kernel/time/posix-cpu-timers.c: In function 'posix_cpu_timer_wait_running_nsleep':
   kernel/time/posix-cpu-timers.c:1310:30: error: 'timr' is a pointer; did you mean to use '->'?
    1310 |         spin_unlock_irq(&timr.it_lock);
         |                              ^
         |                              ->
   kernel/time/posix-cpu-timers.c:1312:28: error: 'timr' is a pointer; did you mean to use '->'?
    1312 |         spin_lock_irq(&timr.it_lock);
         |                            ^
         |                            ->
>> kernel/time/posix-cpu-timers.c:1308:66: warning: parameter 'timr' set but not used [-Wunused-but-set-parameter]
    1308 | static void posix_cpu_timer_wait_running_nsleep(struct k_itimer *timr)
         |                                                 ~~~~~~~~~~~~~~~~~^~~~


vim +/timr +1308 kernel/time/posix-cpu-timers.c

  1307	
> 1308	static void posix_cpu_timer_wait_running_nsleep(struct k_itimer *timr)
  1309	{
  1310		spin_unlock_irq(&timr.it_lock);
  1311		cpu_relax();
  1312		spin_lock_irq(&timr.it_lock);
  1313	}
  1314	

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