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-20230606] [cannot apply to linus/master v6.4-rc5] [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/20230606-141114 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230606060822.1065182-3-usama.anjum%40collabora.com patch subject: [PATCH v17 2/5] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20230607/202306070414.XDn2ITuw-lkp@xxxxxxxxx/config) compiler: arceb-elf-gcc (GCC) 12.3.0 reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git git fetch akpm-mm mm-everything git checkout akpm-mm/mm-everything b4 shazam https://lore.kernel.org/r/20230606060822.1065182-3-usama.anjum@xxxxxxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=arc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306070414.XDn2ITuw-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): fs/proc/task_mmu.c: In function 'pagemap_scan_pmd_entry': >> fs/proc/task_mmu.c:1960:31: error: 'HPAGE_SIZE' undeclared (first use in this function); did you mean 'PAGE_SIZE'? 1960 | n_pages < HPAGE_SIZE/PAGE_SIZE) { | ^~~~~~~~~~ | PAGE_SIZE fs/proc/task_mmu.c:1960:31: note: each undeclared identifier is reported only once for each function it appears in vim +1960 fs/proc/task_mmu.c 1931 1932 static int pagemap_scan_pmd_entry(pmd_t *pmd, unsigned long start, 1933 unsigned long end, struct mm_walk *walk) 1934 { 1935 struct pagemap_scan_private *p = walk->private; 1936 struct vm_area_struct *vma = walk->vma; 1937 unsigned long addr = end; 1938 pte_t *pte, *orig_pte; 1939 spinlock_t *ptl; 1940 bool is_written; 1941 int ret = 0; 1942 1943 arch_enter_lazy_mmu_mode(); 1944 1945 #ifdef CONFIG_TRANSPARENT_HUGEPAGE 1946 ptl = pmd_trans_huge_lock(pmd, vma); 1947 if (ptl) { 1948 unsigned long n_pages = (end - start)/PAGE_SIZE; 1949 1950 if (p->max_pages && n_pages > p->max_pages - p->found_pages) 1951 n_pages = p->max_pages - p->found_pages; 1952 1953 is_written = !is_pmd_uffd_wp(*pmd); 1954 1955 /* 1956 * Break huge page into small pages if the WP operation need to 1957 * be performed is on a portion of the huge page. 1958 */ 1959 if (is_written && IS_PM_SCAN_WP(p->flags) && > 1960 n_pages < HPAGE_SIZE/PAGE_SIZE) { 1961 spin_unlock(ptl); 1962 1963 split_huge_pmd(vma, pmd, start); 1964 goto process_smaller_pages; 1965 } 1966 1967 if (IS_PM_SCAN_GET(p->flags)) 1968 ret = pagemap_scan_output(is_written, vma->vm_file, 1969 pmd_present(*pmd), 1970 is_swap_pmd(*pmd), 1971 p, start, n_pages); 1972 1973 if (ret >= 0 && is_written && IS_PM_SCAN_WP(p->flags)) 1974 make_uffd_wp_pmd(vma, addr, pmd); 1975 1976 if (IS_PM_SCAN_WP(p->flags)) 1977 flush_tlb_range(vma, start, end); 1978 1979 spin_unlock(ptl); 1980 1981 arch_leave_lazy_mmu_mode(); 1982 return ret; 1983 } 1984 1985 process_smaller_pages: 1986 if (pmd_trans_unstable(pmd)) { 1987 arch_leave_lazy_mmu_mode(); 1988 walk->action = ACTION_AGAIN; 1989 return 0; 1990 } 1991 #endif 1992 1993 orig_pte = pte = pte_offset_map_lock(vma->vm_mm, pmd, start, &ptl); 1994 for (addr = start; addr < end && !ret; pte++, addr += PAGE_SIZE) { 1995 is_written = !is_pte_uffd_wp(*pte); 1996 1997 if (IS_PM_SCAN_GET(p->flags)) 1998 ret = pagemap_scan_output(is_written, vma->vm_file, 1999 pte_present(*pte), 2000 is_swap_pte(*pte), 2001 p, addr, 1); 2002 2003 if (ret >= 0 && is_written && IS_PM_SCAN_WP(p->flags)) 2004 make_uffd_wp_pte(vma, addr, pte); 2005 } 2006 2007 if (IS_PM_SCAN_WP(p->flags)) 2008 flush_tlb_range(vma, start, addr); 2009 2010 pte_unmap_unlock(orig_pte, ptl); 2011 arch_leave_lazy_mmu_mode(); 2012 2013 cond_resched(); 2014 return ret; 2015 } 2016 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
