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List-Subscribe: List-Unsubscribe: On Fri, Jan 16, 2026 at 10:04:27AM +0800, kernel test robot wrote: > Hi Liam, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on akpm-mm/mm-everything] > [also build test ERROR on linus/master v6.19-rc5 next-20260115] > [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/Liam-R-Howlett/mm-mmap-Move-exit_mmap-trace-point/20260116-023126 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > patch link: https://lore.kernel.org/r/20260115182720.1691130-9-Liam.Howlett%40oracle.com > patch subject: [PATCH v2 08/10] mm/vma: Use unmap_desc in exit_mmap() and vms_clear_ptes() > config: m68k-allnoconfig (https://download.01.org/0day-ci/archive/20260116/202601160925.VR8a2hUw-lkp@intel.com/config) > compiler: m68k-linux-gcc (GCC) 15.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260116/202601160925.VR8a2hUw-lkp@intel.com/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 > | Closes: https://lore.kernel.org/oe-kbuild-all/202601160925.VR8a2hUw-lkp@intel.com/ > > All errors (new ones prefixed by >>): > > In file included from mm/internal.h:23, > from mm/filemap.c:54: > mm/vma.h: In function 'unmap_all_init': > >> mm/vma.h:175:27: error: 'FIRST_USER_ADDRESS' undeclared (first use in this function) > 175 | unmap->pg_start = FIRST_USER_ADDRESS; > | ^~~~~~~~~~~~~~~~~~ > mm/vma.h:175:27: note: each undeclared identifier is reported only once for each function it appears in > >> mm/vma.h:176:25: error: 'USER_PGTABLES_CEILING' undeclared (first use in this function) > 176 | unmap->pg_end = USER_PGTABLES_CEILING; > | ^~~~~~~~~~~~~~~~~~~~~ > Suspect you need to add: #include to mm/vma_internal.h. Some arches don't define it and that header has: #ifndef USER_PGTABLES_CEILING #define USER_PGTABLES_CEILING 0UL #endif ... #ifndef FIRST_USER_ADDRESS #define FIRST_USER_ADDRESS 0UL #endif > > vim +/FIRST_USER_ADDRESS +175 mm/vma.h > > 169 > 170 static inline void unmap_all_init(struct unmap_desc *unmap, > 171 struct vma_iterator *vmi, struct vm_area_struct *vma) > 172 { > 173 unmap->mas = &vmi->mas; > 174 unmap->first = vma; > > 175 unmap->pg_start = FIRST_USER_ADDRESS; > > 176 unmap->pg_end = USER_PGTABLES_CEILING; > 177 unmap->vma_start = 0; > 178 unmap->vma_end = ULONG_MAX; > 179 unmap->tree_end = ULONG_MAX; > 180 unmap->tree_reset = vma->vm_end; > 181 unmap->mm_wr_locked = false; > 182 } > 183 > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki Cheers, Lorenzo