* kernel test robot <lkp@xxxxxxxxx> [220602 09:24]: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 2e776ccffa840ce53ee1c21bde54cbe4bc102c3b > commit: 32355b99dd92f9751a482463d7e239fa06302bc9 [14545/14705] mm/nommu: move preallocations and limit other allocations > config: arm-buildonly-randconfig-r004-20220531 (https://download.01.org/0day-ci/archive/20220602/202206022121.RYk2Zgc9-lkp@xxxxxxxxx/config) > compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b364c76683f8ef241025a9556300778c07b590c2) > 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=32355b99dd92f9751a482463d7e239fa06302bc9 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 32355b99dd92f9751a482463d7e239fa06302bc9 > # 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 <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > mm/nommu.c:593:18: error: incompatible pointer types passing 'struct ma_state **' to parameter of type 'struct ma_state *'; remove & [-Werror,-Wincompatible-pointer-types] > prev = mas_prev(&mas, 0); > ^~~~ > include/linux/maple_tree.h:468:33: note: passing argument to parameter 'mas' here > void *mas_prev(struct ma_state *mas, unsigned long min); > ^ > mm/nommu.c:594:12: error: incompatible pointer types passing 'struct ma_state **' to parameter of type 'struct ma_state *'; remove & [-Werror,-Wincompatible-pointer-types] > mas_reset(&mas); > ^~~~ > include/linux/maple_tree.h:505:47: note: passing argument to parameter 'mas' here > static inline void mas_reset(struct ma_state *mas) > ^ > >> mm/nommu.c:1081:28: warning: variable 'vma' is uninitialized when used here [-Wuninitialized] > if (mas_preallocate(&mas, vma, GFP_KERNEL)) mas_preallocate does not currently use this variable, but in the future it may be that you are storing a NULL which could affect the preallocations as an optimization. I will fix this by relocating it below the vma allocation. > ^~~ > mm/nommu.c:1055:28: note: initialize the variable 'vma' to silence this warning > struct vm_area_struct *vma; > ^ > = NULL > 1 warning and 2 errors generated.
