Hi Byungchul, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tip/sched/core] [also build test WARNING on linux/master linus/master v5.17-rc5] [cannot apply to tip/locking/core hnaz-mm/master next-20220217] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Byungchul-Park/DEPT-Dependency-Tracker/20220220-185528 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git ed3b362d54f0038cafc985248350d301af7af686 reproduce: make htmldocs If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> include/linux/completion.h:121: warning: expecting prototype for init_completion(). Prototype was for __init_completion() instead vim +121 include/linux/completion.h 8b3db9c542e18b7 Ingo Molnar 2006-07-03 110 65eb3dc609dec17 Kevin Diggs 2008-08-26 111 /** ee2f154a598e96d Randy Dunlap 2010-10-26 112 * init_completion - Initialize a dynamically allocated completion c32f74ab2872994 Wolfram Sang 2013-11-14 113 * @x: pointer to completion structure that is to be initialized 65eb3dc609dec17 Kevin Diggs 2008-08-26 114 * 65eb3dc609dec17 Kevin Diggs 2008-08-26 115 * This inline function will initialize a dynamically created completion 65eb3dc609dec17 Kevin Diggs 2008-08-26 116 * structure. 65eb3dc609dec17 Kevin Diggs 2008-08-26 117 */ 82b6a46bab5dcb0 Byungchul Park 2022-02-19 118 static inline void __init_completion(struct completion *x, 82b6a46bab5dcb0 Byungchul Park 2022-02-19 119 struct dept_key *dkey, 82b6a46bab5dcb0 Byungchul Park 2022-02-19 120 const char *name) ^1da177e4c3f415 Linus Torvalds 2005-04-16 @121 { ^1da177e4c3f415 Linus Torvalds 2005-04-16 122 x->done = 0; 82b6a46bab5dcb0 Byungchul Park 2022-02-19 123 dept_wfc_init(&x->dmap, dkey, 0, name); a5c6234e10280b3 Thomas Gleixner 2020-03-21 124 init_swait_queue_head(&x->wait); ^1da177e4c3f415 Linus Torvalds 2005-04-16 125 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 126 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx