Hi Mina, Thank you for the patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] url: https://github.com/0day-ci/linux/commits/Mina-Almasry/mm-hugepages-add-mremap-support-for-hugepage-backed-vma/20211009-023524 base: https://github.com/hnaz/linux-mm master config: riscv-randconfig-c006-20211009 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 30caca39f401ae17927439c0a0bd6d1b1916dd6a) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/295ef1343fb989a386d2393ffe29b5a5553b22cf git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Mina-Almasry/mm-hugepages-add-mremap-support-for-hugepage-backed-vma/20211009-023524 git checkout 295ef1343fb989a386d2393ffe29b5a5553b22cf # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mm/hugetlb.c:3729:16: warning: variable 'demote_size' set but not used [-Wunused-but-set-variable] unsigned long demote_size; ^ >> mm/hugetlb.c:6535:13: error: static declaration of 'hugetlb_vma_shareable' follows non-static declaration static bool hugetlb_vma_shareable(struct vm_area_struct *vma, ^ include/linux/hugetlb.h:217:6: note: previous declaration is here bool hugetlb_vma_shareable(struct vm_area_struct *vma, unsigned long addr); ^ 1 warning and 1 error generated. vim +/hugetlb_vma_shareable +6535 mm/hugetlb.c 6533 6534 #else /* !CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ > 6535 static bool hugetlb_vma_shareable(struct vm_area_struct *vma, 6536 unsigned long addr) 6537 { 6538 return false; 6539 } 6540 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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