Hi Liam, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.3 next-20230425] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Liam-R-Howlett/maple_tree-Fix-static-analyser-cppcheck-issue/20230425-233958 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230425140955.3834476-28-Liam.Howlett%40oracle.com patch subject: [PATCH 27/34] maple_tree: Introduce mas_next_slot() interface config: x86_64-kexec (https://download.01.org/0day-ci/archive/20230426/202304262143.kjXZTgwU-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/0e736b8a8054e7f0b216320d2458a00b54fcd2b0 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Liam-R-Howlett/maple_tree-Fix-static-analyser-cppcheck-issue/20230425-233958 git checkout 0e736b8a8054e7f0b216320d2458a00b54fcd2b0 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 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/202304262143.kjXZTgwU-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): lib/maple_tree.c:4710:7: warning: no previous prototype for 'mas_next_slot' [-Wmissing-prototypes] 4710 | void *mas_next_slot(struct ma_state *mas, unsigned long max) | ^~~~~~~~~~~~~ lib/maple_tree.c: In function 'mas_next_entry': >> lib/maple_tree.c:4780:17: error: implicit declaration of function 'mas_next_slot_limit'; did you mean 'mas_next_slot'? [-Werror=implicit-function-declaration] 4780 | entry = mas_next_slot_limit(mas, limit); | ^~~~~~~~~~~~~~~~~~~ | mas_next_slot >> lib/maple_tree.c:4780:15: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 4780 | entry = mas_next_slot_limit(mas, limit); | ^ >> lib/maple_tree.c:4787:16: warning: returning 'int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion] 4787 | return mas_next_slot_limit(mas, limit); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +4780 lib/maple_tree.c 4760 4761 /* 4762 * mas_next_entry() - Internal function to get the next entry. 4763 * @mas: The maple state 4764 * @limit: The maximum range start. 4765 * 4766 * Set the @mas->node to the next entry and the range_start to 4767 * the beginning value for the entry. Does not check beyond @limit. 4768 * Sets @mas->index and @mas->last to the limit if it is hit. 4769 * Restarts on dead nodes. 4770 * 4771 * Return: the next entry or %NULL. 4772 */ 4773 static inline void *mas_next_entry(struct ma_state *mas, unsigned long limit) 4774 { 4775 void *entry = NULL; 4776 4777 if (mas->last >= limit) 4778 return NULL; 4779 > 4780 entry = mas_next_slot_limit(mas, limit); 4781 if (entry) 4782 return entry; 4783 4784 if (mas_is_none(mas)) 4785 return NULL; 4786 > 4787 return mas_next_slot_limit(mas, limit); 4788 } 4789 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
