On Sat, 28 Jan 2023 20:55:08 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable > head: ede43f2956cc25e387a5e225324104f22e715908 > commit: 6c096b0425160233d2a8c3ec3f3d82dae5c37678 [167/506] mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps > config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20230128/202301282035.M6wJfQhs-lkp@xxxxxxxxx/config) > compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) > 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://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?id=6c096b0425160233d2a8c3ec3f3d82dae5c37678 > git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git > git fetch --no-tags akpm-mm mm-unstable > git checkout 6c096b0425160233d2a8c3ec3f3d82dae5c37678 > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/infiniband/core/ drivers/net/ethernet/mellanox/mlx5/core/ fs/cifs/ > > If you fix the issue, kindly add following tag where applicable > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > > Note: the akpm-mm/mm-unstable HEAD ede43f2956cc25e387a5e225324104f22e715908 builds fine. > It only hurts bisectability. > > All errors (new ones prefixed by >>): > > In file included from drivers/infiniband/core/umem_odp.c:41: > >> include/linux/hugetlb.h:1193:9: error: implicit declaration of function 'page_count' is invalid in C99 [-Werror,-Wimplicit-function-declaration] > return page_count(virt_to_page(pte)) > 1; > ^ Thanks. I hesitate to include mm.h into hugetlb.h, but page_ref.h looks OK. --- a/include/linux/hugetlb.h~mm-hugetlb-proc-check-for-hugetlb-shared-pmd-in-proc-pid-smaps-fix-2 +++ a/include/linux/hugetlb.h @@ -7,6 +7,7 @@ #include <linux/fs.h> #include <linux/hugetlb_inline.h> #include <linux/cgroup.h> +#include <linux/page_ref.h> #include <linux/list.h> #include <linux/kref.h> #include <linux/pgtable.h> _
