Hi Alistair, kernel test robot noticed the following build warnings:
[auto build test WARNING on e25c8d66f6786300b680866c0e0139981273feba] url: https://github.com/intel-lab-lkp/linux/commits/Alistair-Popple/fuse-Fix-dax-truncate-punch_hole-fault-path/20250107-114726 base: e25c8d66f6786300b680866c0e0139981273feba patch link: https://lore.kernel.org/r/5729b98a4f8edfec80edffddc36cac6dbaa8f4b9.1736221254.git-series.apopple%40nvidia.com patch subject: [PATCH v5 15/25] huge_memory: Add vmf_insert_folio_pud() config: i386-buildonly-randconfig-004-20250108 (https://download.01.org/0day-ci/archive/20250108/202501081149.vdlf8cwh-...@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250108/202501081149.vdlf8cwh-...@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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202501081149.vdlf8cwh-...@intel.com/ All warnings (new ones prefixed by >>): >> mm/huge_memory.c:1561: warning: Function parameter or struct member 'folio' >> not described in 'vmf_insert_folio_pud' >> mm/huge_memory.c:1561: warning: Excess function parameter 'pfn' description >> in 'vmf_insert_folio_pud' vim +1561 mm/huge_memory.c 1551 1552 /** 1553 * vmf_insert_folio_pud - insert a pud size folio mapped by a pud entry 1554 * @vmf: Structure describing the fault 1555 * @pfn: pfn of the page to insert 1556 * @write: whether it's a write fault 1557 * 1558 * Return: vm_fault_t value. 1559 */ 1560 vm_fault_t vmf_insert_folio_pud(struct vm_fault *vmf, struct folio *folio, bool write) > 1561 { 1562 struct vm_area_struct *vma = vmf->vma; 1563 unsigned long addr = vmf->address & PUD_MASK; 1564 pud_t *pud = vmf->pud; 1565 struct mm_struct *mm = vma->vm_mm; 1566 spinlock_t *ptl; 1567 1568 if (addr < vma->vm_start || addr >= vma->vm_end) 1569 return VM_FAULT_SIGBUS; 1570 1571 if (WARN_ON_ONCE(folio_order(folio) != PUD_ORDER)) 1572 return VM_FAULT_SIGBUS; 1573 1574 ptl = pud_lock(mm, pud); 1575 if (pud_none(*vmf->pud)) { 1576 folio_get(folio); 1577 folio_add_file_rmap_pud(folio, &folio->page, vma); 1578 add_mm_counter(mm, mm_counter_file(folio), HPAGE_PUD_NR); 1579 } 1580 insert_pfn_pud(vma, addr, vmf->pud, pfn_to_pfn_t(folio_pfn(folio)), write); 1581 spin_unlock(ptl); 1582 1583 return VM_FAULT_NOPAGE; 1584 } 1585 EXPORT_SYMBOL_GPL(vmf_insert_folio_pud); 1586 #endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */ 1587 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
