Hi Muhammad, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on next-20230817] [cannot apply to linus/master v6.5-rc6] [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/Muhammad-Usama-Anjum/userfaultfd-UFFD_FEATURE_WP_ASYNC/20230816-193454 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230816113049.1697849-3-usama.anjum%40collabora.com patch subject: [PATCH v32 2/6] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20230818/202308181520.yCq9Z26w-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230818/202308181520.yCq9Z26w-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/202308181520.yCq9Z26w-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): fs/proc/task_mmu.c: In function 'pagemap_scan_thp_entry': >> fs/proc/task_mmu.c:2077:28: error: 'HPAGE_SIZE' undeclared (first use in this function); did you mean 'PAGE_SIZE'? 2077 | if (end != start + HPAGE_SIZE) { | ^~~~~~~~~~ | PAGE_SIZE fs/proc/task_mmu.c:2077:28: note: each undeclared identifier is reported only once for each function it appears in vim +2077 fs/proc/task_mmu.c 2044 2045 static int pagemap_scan_thp_entry(pmd_t *pmd, unsigned long start, 2046 unsigned long end, struct mm_walk *walk) 2047 { 2048 #ifdef CONFIG_TRANSPARENT_HUGEPAGE 2049 struct pagemap_scan_private *p = walk->private; 2050 struct vm_area_struct *vma = walk->vma; 2051 unsigned long categories; 2052 spinlock_t *ptl; 2053 int ret = 0; 2054 2055 ptl = pmd_trans_huge_lock(pmd, vma); 2056 if (!ptl) 2057 return -ENOENT; 2058 2059 categories = p->cur_vma_category | pagemap_thp_category(*pmd); 2060 2061 if (!pagemap_scan_is_interesting_page(categories, p)) 2062 goto out_unlock; 2063 2064 ret = pagemap_scan_output(categories, p, start, &end); 2065 if (start == end) 2066 goto out_unlock; 2067 2068 if (~p->arg.flags & PM_SCAN_WP_MATCHING) 2069 goto out_unlock; 2070 if (~categories & PAGE_IS_WRITTEN) 2071 goto out_unlock; 2072 2073 /* 2074 * Break huge page into small pages if the WP operation 2075 * needs to be performed on a portion of the huge page. 2076 */ > 2077 if (end != start + HPAGE_SIZE) { 2078 spin_unlock(ptl); 2079 split_huge_pmd(vma, pmd, start); 2080 pagemap_scan_backout_range(p, start, end); 2081 /* Report as if there was no THP */ 2082 return -ENOENT; 2083 } 2084 2085 make_uffd_wp_pmd(vma, start, pmd); 2086 flush_tlb_range(vma, start, end); 2087 out_unlock: 2088 spin_unlock(ptl); 2089 return ret; 2090 #else /* !CONFIG_TRANSPARENT_HUGEPAGE */ 2091 return -ENOENT; 2092 #endif 2093 } 2094 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
