linux-kernel - [tip:timers/core 13/13] kernel/time/posix-cpu-timers.c:1310:19: error: use of undeclared identifier 'timer'

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Date:   Thu, 20 Apr 2023 03:26:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     llvm@...ts.linux.dev, 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:1310:19:
 error: use of undeclared identifier 'timer'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
head:   1bb5b68fd3aabb6b9d6b9e9bb092bb8f3c2ade62
commit: 1bb5b68fd3aabb6b9d6b9e9bb092bb8f3c2ade62 [13/13] posix-cpu-timers: Implement the missing timer_wait_running callback
config: arm-randconfig-r046-20230416 (https://download.01.org/0day-ci/archive/20230420/202304200309.F6HbUeCE-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=1bb5b68fd3aabb6b9d6b9e9bb092bb8f3c2ade62
        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 1bb5b68fd3aabb6b9d6b9e9bb092bb8f3c2ade62
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash kernel/time/

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/202304200309.F6HbUeCE-lkp@intel.com/

All errors (new ones prefixed by >>):

>> kernel/time/posix-cpu-timers.c:1310:19: error: use of undeclared identifier 'timer'
           spin_unlock_irq(&timer.it_lock);
                            ^
   kernel/time/posix-cpu-timers.c:1312:17: error: use of undeclared identifier 'timer'
           spin_lock_irq(&timer.it_lock);
                          ^
   2 errors generated.


vim +/timer +1310 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(&timer.it_lock);
  1311		cpu_relax();
  1312		spin_lock_irq(&timer.it_lock);
  1313	}
  1314	

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