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Date: Fri, 24 Jun 2022 05:37:34 +0800 From: kernel test robot <lkp@...el.com> To: Mathias Krause <minipli@...ecurity.net> Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org Subject: kernel/sched/rt.c:257:6: warning: no previous declaration for 'unregister_rt_sched_group' tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 92f20ff72066d8d7e2ffb655c2236259ac9d1c5d commit: b027789e5e50494c2325cc70c8642e7fd6059479 sched/fair: Prevent dead task groups from regaining cfs_rq's date: 7 months ago config: i386-randconfig-a004-20220620 (https://download.01.org/0day-ci/archive/20220624/202206240552.NqXLKyZT-lkp@intel.com/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b027789e5e50494c2325cc70c8642e7fd6059479 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b027789e5e50494c2325cc70c8642e7fd6059479 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@...el.com> All warnings (new ones prefixed by >>): >> kernel/sched/rt.c:257:6: warning: no previous declaration for 'unregister_rt_sched_group' [-Wmissing-declarations] void unregister_rt_sched_group(struct task_group *tg) { } ^~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:259:6: warning: no previous declaration for 'free_rt_sched_group' [-Wmissing-declarations] void free_rt_sched_group(struct task_group *tg) { } ^~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:261:5: warning: no previous declaration for 'alloc_rt_sched_group' [-Wmissing-declarations] int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) ^~~~~~~~~~~~~~~~~~~~ kernel/sched/rt.c:675:6: warning: no previous declaration for 'sched_rt_bandwidth_account' [-Wmissing-declarations] bool sched_rt_bandwidth_account(struct rt_rq *rt_rq) ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/unregister_rt_sched_group +257 kernel/sched/rt.c 256 > 257 void unregister_rt_sched_group(struct task_group *tg) { } 258 -- 0-DAY CI Kernel Test Service https://01.org/lkp
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