tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: f96b65aa15baec616fffdb8f1d4fa3222aa56467 commit: 93bb3be05691973459b9e23f7b9667137528df0f [73/80] maple_tree: add mas_prev_range() and mas_find_range_rev interface config: arc-randconfig-r043-20230502 (https://download.01.org/0day-ci/archive/20230506/202305062247.va92Dm6P-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 12.1.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=93bb3be05691973459b9e23f7b9667137528df0f git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git git fetch --no-tags akpm-mm mm-unstable git checkout 93bb3be05691973459b9e23f7b9667137528df0f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202305062247.va92Dm6P-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): lib/maple_tree.c:4606:7: warning: no previous prototype for 'mas_prev_slot' [-Wmissing-prototypes] 4606 | void *mas_prev_slot(struct ma_state *mas, unsigned long min, bool empty) | ^~~~~~~~~~~~~ lib/maple_tree.c:4758:7: warning: no previous prototype for 'mas_next_slot' [-Wmissing-prototypes] 4758 | void *mas_next_slot(struct ma_state *mas, unsigned long max, bool empty) | ^~~~~~~~~~~~~ >> lib/maple_tree.c:6251:7: warning: no previous prototype for 'mas_find_range_rev' [-Wmissing-prototypes] 6251 | void *mas_find_range_rev(struct ma_state *mas, unsigned long min) | ^~~~~~~~~~~~~~~~~~ vim +/mas_find_range_rev +6251 lib/maple_tree.c 6237 6238 /** 6239 * mas_find_range_rev: On the first call, find the first non-null entry at or 6240 * below mas->index down to %min. Otherwise advance to the previous slot after 6241 * mas->index down to %min. 6242 * @mas: The maple state 6243 * @min: The minimum value to check. 6244 * 6245 * Must hold rcu_read_lock or the write lock. 6246 * If an entry exists, last and index are updated accordingly. 6247 * May set @mas->node to MAS_NONE. 6248 * 6249 * Return: The entry or %NULL. 6250 */ > 6251 void *mas_find_range_rev(struct ma_state *mas, unsigned long min) 6252 { 6253 void *entry; 6254 6255 if (mas_find_rev_setup(mas, min, &entry)) 6256 return entry; 6257 6258 /* Retries on dead nodes handled by mas_prev_slot */ 6259 return mas_prev_slot(mas, min, true); 6260 } 6261 EXPORT_SYMBOL_GPL(mas_find_range_rev); 6262 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
