Hi Shradha, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.0-rc7 next-20220930] [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/Shradha-Gupta/Configurable-order-free-page-reporting-in-hyper-v/20220929-182918 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything config: arm-randconfig-r003-20220926 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/intel-lab-lkp/linux/commit/c3ac7f3e00c93db62e279104fae0b6df0c80d4af git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Shradha-Gupta/Configurable-order-free-page-reporting-in-hyper-v/20220929-182918 git checkout c3ac7f3e00c93db62e279104fae0b6df0c80d4af # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> mm/page_reporting.c:17:5: warning: no previous prototype for function 'page_order_update_notify' [-Wmissing-prototypes] int page_order_update_notify(const char *val, const struct kernel_param *kp) ^ mm/page_reporting.c:17:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int page_order_update_notify(const char *val, const struct kernel_param *kp) ^ static 1 warning generated. vim +/page_order_update_notify +17 mm/page_reporting.c 16 > 17 int page_order_update_notify(const char *val, const struct kernel_param *kp) 18 { 19 /* 20 * If param is set beyond this limit, order is set to default 21 * pageblock_order value 22 */ 23 return param_set_uint_minmax(val, kp, 0, MAX_ORDER-1); 24 } 25 -- 0-DAY CI Kernel Test Service https://01.org/lkp