Hi Hugh, I love your patch! Perhaps something to improve: [auto build test WARNING on hch-configfs/for-next] [also build test WARNING on linus/master v5.14-rc3 next-20210729] [cannot apply to hnaz-linux-mm/master] [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/Hugh-Dickins/tmpfs-HUGEPAGE-and-MEM_LOCK-fcntls-and-memfds/20210730-161413 base: git://git.infradead.org/users/hch/configfs.git for-next config: ia64-randconfig-r016-20210730 (attached as .config) compiler: ia64-linux-gcc (GCC) 10.3.0 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/0day-ci/linux/commit/7d2aab7d716c95551b2bcab51ca8ff33c2d1dd58 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Hugh-Dickins/tmpfs-HUGEPAGE-and-MEM_LOCK-fcntls-and-memfds/20210730-161413 git checkout 7d2aab7d716c95551b2bcab51ca8ff33c2d1dd58 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from arch/ia64/include/asm/pgtable.h:153, from include/linux/pgtable.h:6, from arch/ia64/include/asm/uaccess.h:40, from include/linux/uaccess.h:11, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from include/linux/rcuwait.h:6, from include/linux/percpu-rwsem.h:7, from include/linux/fs.h:33, from mm/shmem.c:24: arch/ia64/include/asm/mmu_context.h: In function 'reload_context': arch/ia64/include/asm/mmu_context.h:127:41: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable] 127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4; | ^~~~~~~ mm/shmem.c: At top level: >> mm/shmem.c:695:6: warning: no previous prototype for 'transparent_hugepage_allowed' [-Wmissing-prototypes] 695 | bool transparent_hugepage_allowed(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/transparent_hugepage_allowed +695 mm/shmem.c 694 > 695 bool transparent_hugepage_allowed(void) 696 { 697 return false; 698 } 699 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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