tree:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 19ae1f2bd9c091059f80646604ccef8a1e614f57
commit: 1878ae46bd82ef0403393aee4935f29c07d5848b [9529/10007] mm, futex: fix shared futex
pgoff on shmem huge page
config: arm64-randconfig-r014-20210615 (attached as .config)
compiler: clang version 13.0.0 (
https://github.com/llvm/llvm-project
64720f57bea6a6bf033feef4a5751ab9c0c3b401)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
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 1878ae46bd82ef0403393aee4935f29c07d5848b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> mm/hugetlb.c:1591:9: warning: no previous prototype for function
'hugetlb_basepage_index' [-Wmissing-prototypes]
pgoff_t
hugetlb_basepage_index(struct page *page)
^
mm/hugetlb.c:1591:1: note: declare 'static' if the function is not intended to
be used outside of this translation unit
pgoff_t hugetlb_basepage_index(struct page *page)
^
static
include/linux/types.h:131:17: note: expanded from macro 'pgoff_t'
#define pgoff_t unsigned long
^
1 warning generated.
vim +/hugetlb_basepage_index +1591 mm/hugetlb.c
1590
1591 pgoff_t hugetlb_basepage_index(struct page *page)
1592 {
1593 struct page *page_head = compound_head(page);
1594 pgoff_t index = page_index(page_head);
1595 unsigned long compound_idx;
1596
1597 if (compound_order(page_head) >= MAX_ORDER)
1598 compound_idx = page_to_pfn(page) - page_to_pfn(page_head);
1599 else
1600 compound_idx = page - page_head;
1601
1602 return (index << compound_order(page_head)) + compound_idx;
1603 }
1604
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org