Messages in this thread | | | Date | Thu, 24 Sep 2020 20:32:51 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [rcu:rcu/test 55/64] kernel/rcu/rcutorture.c:1507:13: warning: no previous prototype for 'rcu_nocb_cpu_offload' |
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On Fri, Sep 25, 2020 at 11:08:19AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/test > head: 516c2f87d0d1204a9ea1b36298283f74056a7eab > commit: 4df5d8a622235d0b26aba92c881d190667e4d6c3 [55/64] rcutorture: Test runtime toggling of CPUs' callback offloading > config: microblaze-randconfig-r033-20200923 (attached as .config) > compiler: microblaze-linux-gcc (GCC) 9.3.0 > 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 > git checkout 4df5d8a622235d0b26aba92c881d190667e4d6c3 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All warnings (new ones prefixed by >>): > > >> kernel/rcu/rcutorture.c:1507:13: warning: no previous prototype for 'rcu_nocb_cpu_offload' [-Wmissing-prototypes] > 1507 | void __weak rcu_nocb_cpu_offload(int cpu) {} > | ^~~~~~~~~~~~~~~~~~~~ > >> kernel/rcu/rcutorture.c:1508:13: warning: no previous prototype for 'rcu_nocb_cpu_deoffload' [-Wmissing-prototypes] > 1508 | void __weak rcu_nocb_cpu_deoffload(int cpu) {} > | ^~~~~~~~~~~~~~~~~~~~~~
The previous prototype will be showing up later, once the code that this is testing appears. At which point these two lines will go away.
Thanx, Paul
> # https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=4df5d8a622235d0b26aba92c881d190667e4d6c3 > git remote add rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git > git fetch --no-tags rcu rcu/test > git checkout 4df5d8a622235d0b26aba92c881d190667e4d6c3 > vim +/rcu_nocb_cpu_offload +1507 kernel/rcu/rcutorture.c > > 1506 > > 1507 void __weak rcu_nocb_cpu_offload(int cpu) {} > > 1508 void __weak rcu_nocb_cpu_deoffload(int cpu) {} > 1509 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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