Messages in this thread | | | Date | Fri, 7 Jan 2022 20:28:49 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [paulmck-rcu:dev.2022.01.04a 55/55] kernel/time/timer.c:1776:6: warning: no previous prototype for 'tick_setup_sched_timer_dump' |
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On Sat, Jan 08, 2022 at 08:41:32AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2022.01.04a > head: 64595d0dff992756e8c6d53c0e9f1e3e50c451f7 > commit: 64595d0dff992756e8c6d53c0e9f1e3e50c451f7 [55/55] squash! EXP timers: Non-nohz_full last-resort jiffies update on IRQ entry > config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20220108/202201080834.rGuSv2SS-lkp@intel.com/config) > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 > reproduce (this is a W=1 build): > # https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=64595d0dff992756e8c6d53c0e9f1e3e50c451f7 > 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.2022.01.04a > git checkout 64595d0dff992756e8c6d53c0e9f1e3e50c451f7 > # save the config file to linux build tree > mkdir build_dir > make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash kernel/time/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com>
Good catch, but this was due to debug code that has since been removed.
Thanx, Paul
> All warnings (new ones prefixed by >>): > > kernel/time/timer.c:254:5: warning: no previous prototype for 'timer_migration_handler' [-Wmissing-prototypes] > 254 | int timer_migration_handler(struct ctl_table *table, int write, > | ^~~~~~~~~~~~~~~~~~~~~~~ > >> kernel/time/timer.c:1776:6: warning: no previous prototype for 'tick_setup_sched_timer_dump' [-Wmissing-prototypes] > 1776 | void tick_setup_sched_timer_dump(void) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > vim +/tick_setup_sched_timer_dump +1776 kernel/time/timer.c > > 1775 > > 1776 void tick_setup_sched_timer_dump(void) > 1777 { > 1778 int cpu; > 1779 int j = jiffies; > 1780 > 1781 pr_alert("%s state", __func__); > 1782 for_each_possible_cpu(cpu) > 1783 pr_cont(" j/c %x/%d %c", > 1784 (int)(j - per_cpu(tick_setup_sched_timer_jiffies, cpu)) & 0xfff, > 1785 per_cpu(tick_setup_sched_timer_jiffies_count, cpu), > 1786 ".H"[per_cpu(tick_setup_sched_timer_help_needed, cpu)]); > 1787 pr_cont("\n"); > 1788 } > 1789 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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