Hi Muhammad, Thank you for the patch! Yet something to improve: [auto build test ERROR on shuah-kselftest/next] [also build test ERROR on shuah-kselftest/fixes linus/master v6.2-rc5 next-20230124] [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/Muhammad-Usama-Anjum/userfaultfd-Add-UFFD-WP-Async-support/20230124-164601 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/r/20230124084323.1363825-2-usama.anjum%40collabora.com patch subject: [PATCH v8 1/4] userfaultfd: Add UFFD WP Async support config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230124/202301241830.KlT5Xcjy-lkp@xxxxxxxxx/config) compiler: powerpc-linux-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://github.com/intel-lab-lkp/linux/commit/59e98aec663b7ca8fd5f3b3d2a0f17f777f425c4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Muhammad-Usama-Anjum/userfaultfd-Add-UFFD-WP-Async-support/20230124-164601 git checkout 59e98aec663b7ca8fd5f3b3d2a0f17f777f425c4 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/hugetlb.h:14, from arch/powerpc/kernel/setup-common.c:37: >> include/linux/userfaultfd_k.h:278:5: error: no previous prototype for 'userfaultfd_wp_async' [-Werror=missing-prototypes] 278 | int userfaultfd_wp_async(struct vm_area_struct *vma) | ^~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/userfaultfd_wp_async +278 include/linux/userfaultfd_k.h 277 > 278 int userfaultfd_wp_async(struct vm_area_struct *vma) 279 { 280 return false; 281 } 282 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
