Messages in this thread | | | Date | Sun, 19 Mar 2023 15:05:43 +0800 | From | kernel test robot <> | Subject | [paulmck-rcu:dev.2023.03.17a 33/38] kernel/rcu/tasks.h:140:20: warning: 'tasks_rcu_exit_srcu' defined but not used |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2023.03.17a head: 19d218a4b125a4dce12eb88097a9c55f7126ce8c commit: 61eea4556e8cf92d4c9b483110a679d2652aa451 [33/38] srcu: Move work-scheduling fields from srcu_struct to srcu_usage config: x86_64-kexec (https://download.01.org/0day-ci/archive/20230319/202303191536.XzMSyzTl-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=61eea4556e8cf92d4c9b483110a679d2652aa451 git remote add paulmck-rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git git fetch --no-tags paulmck-rcu dev.2023.03.17a git checkout 61eea4556e8cf92d4c9b483110a679d2652aa451 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com> | Link: https://lore.kernel.org/oe-kbuild-all/202303191536.XzMSyzTl-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/linux/srcu.h:49, from include/linux/notifier.h:16, from arch/x86/include/asm/uprobes.h:13, from include/linux/uprobes.h:49, from include/linux/mm_types.h:16, from include/linux/sched/signal.h:13, from kernel/rcu/update.c:26: >> kernel/rcu/tasks.h:140:20: warning: 'tasks_rcu_exit_srcu' defined but not used [-Wunused-variable] 140 | DEFINE_STATIC_SRCU(tasks_rcu_exit_srcu); | ^~~~~~~~~~~~~~~~~~~ include/linux/srcutree.h:184:38: note: in definition of macro '__DEFINE_SRCU' 184 | is_static struct srcu_struct name = \ | ^~~~ kernel/rcu/tasks.h:140:1: note: in expansion of macro 'DEFINE_STATIC_SRCU' 140 | DEFINE_STATIC_SRCU(tasks_rcu_exit_srcu); | ^~~~~~~~~~~~~~~~~~
vim +/tasks_rcu_exit_srcu +140 kernel/rcu/tasks.h
07e105158d97b4 Paul E. McKenney 2020-03-02 138 eacd6f04a13331 Paul E. McKenney 2020-03-02 139 /* Track exiting tasks in order to allow them to be waited for. */ eacd6f04a13331 Paul E. McKenney 2020-03-02 @140 DEFINE_STATIC_SRCU(tasks_rcu_exit_srcu); eacd6f04a13331 Paul E. McKenney 2020-03-02 141
:::::: The code at line 140 was first introduced by commit :::::: eacd6f04a1333187dd3e96e5635c0edce0a2e354 rcu-tasks: Move Tasks RCU to its own file
:::::: TO: Paul E. McKenney <paulmck@kernel.org> :::::: CC: Paul E. McKenney <paulmck@kernel.org>
-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
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