Hi Oscar, kernel test robot noticed the following build warnings: [auto build test WARNING on s390/features] [also build test WARNING on brauner-vfs/vfs.all akpm-mm/mm-everything linus/master v6.12-rc2 next-20241004] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Oscar-Salvador/mm-mmap-Teach-generic_get_unmapped_area-_topdown-to-handle-hugetlb-mappings/20241007-155328 base: https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features patch link: https://lore.kernel.org/r/20241007075037.267650-10-osalvador%40suse.de patch subject: [PATCH v4 9/9] mm: Consolidate common checks in hugetlb_get_unmapped_area config: mips-cavium_octeon_defconfig (https://download.01.org/0day-ci/archive/20241008/202410081210.uNLbf3Jk-lkp@xxxxxxxxx/config) compiler: mips64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241008/202410081210.uNLbf3Jk-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410081210.uNLbf3Jk-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/linux/hugetlb.h:789, from kernel/fork.c:53: arch/mips/include/asm/hugetlb.h: In function 'prepare_hugepage_range': >> arch/mips/include/asm/hugetlb.h:20:24: warning: unused variable 'h' [-Wunused-variable] 20 | struct hstate *h = hstate_file(file); | ^ vim +/h +20 arch/mips/include/asm/hugetlb.h 50a41ff292fafe David Daney 2009-05-27 13 78d6e4e8ea8700 Alexandre Ghiti 2018-10-26 14 #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE 50a41ff292fafe David Daney 2009-05-27 15 static inline int prepare_hugepage_range(struct file *file, 50a41ff292fafe David Daney 2009-05-27 16 unsigned long addr, 50a41ff292fafe David Daney 2009-05-27 17 unsigned long len) 50a41ff292fafe David Daney 2009-05-27 18 { 50a41ff292fafe David Daney 2009-05-27 19 unsigned long task_size = STACK_TOP; 50a41ff292fafe David Daney 2009-05-27 @20 struct hstate *h = hstate_file(file); 50a41ff292fafe David Daney 2009-05-27 21 50a41ff292fafe David Daney 2009-05-27 22 if (len > task_size) 50a41ff292fafe David Daney 2009-05-27 23 return -ENOMEM; 50a41ff292fafe David Daney 2009-05-27 24 if (task_size - len < addr) 50a41ff292fafe David Daney 2009-05-27 25 return -EINVAL; 50a41ff292fafe David Daney 2009-05-27 26 return 0; 50a41ff292fafe David Daney 2009-05-27 27 } 50a41ff292fafe David Daney 2009-05-27 28 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
