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Donenfeld" tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a8662bcd2ff152bfbc751cab20f33053d74d0963 commit: 9651fcedf7b92d3f7f1ab179e8ab55b85ee10fc1 mm: add MAP_DROPPABLE for designating always lazily freeable mappings date: 9 months ago :::::: branch date: 6 hours ago :::::: commit date: 9 months ago config: i386-randconfig-r072-20250405 (https://download.01.org/0day-ci/archive/20250405/202504051652.tDFckPp0-lkp@intel.com/config) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202504051652.tDFckPp0-lkp@intel.com/ smatch warnings: include/linux/userfaultfd_k.h:221 vma_can_userfault() warn: bitwise AND condition is false here vim +221 include/linux/userfaultfd_k.h 932b18e0aec65a Andrea Arcangeli 2015-09-04 214 b1f9e876862d8f Peter Xu 2022-05-12 215 static inline bool vma_can_userfault(struct vm_area_struct *vma, d61ea1cb009532 Peter Xu 2023-08-21 216 unsigned long vm_flags, d61ea1cb009532 Peter Xu 2023-08-21 217 bool wp_async) b1f9e876862d8f Peter Xu 2022-05-12 218 { d61ea1cb009532 Peter Xu 2023-08-21 219 vm_flags &= __VM_UFFD_FLAGS; d61ea1cb009532 Peter Xu 2023-08-21 220 9651fcedf7b92d Jason A. Donenfeld 2022-12-08 @221 if (vm_flags & VM_DROPPABLE) 9651fcedf7b92d Jason A. Donenfeld 2022-12-08 222 return false; 9651fcedf7b92d Jason A. Donenfeld 2022-12-08 223 67eae54bc227b3 Peter Xu 2022-10-24 224 if ((vm_flags & VM_UFFD_MINOR) && 67eae54bc227b3 Peter Xu 2022-10-24 225 (!is_vm_hugetlb_page(vma) && !vma_is_shmem(vma))) 67eae54bc227b3 Peter Xu 2022-10-24 226 return false; d61ea1cb009532 Peter Xu 2023-08-21 227 d61ea1cb009532 Peter Xu 2023-08-21 228 /* d61ea1cb009532 Peter Xu 2023-08-21 229 * If wp async enabled, and WP is the only mode enabled, allow any d61ea1cb009532 Peter Xu 2023-08-21 230 * memory type. d61ea1cb009532 Peter Xu 2023-08-21 231 */ d61ea1cb009532 Peter Xu 2023-08-21 232 if (wp_async && (vm_flags == VM_UFFD_WP)) d61ea1cb009532 Peter Xu 2023-08-21 233 return true; d61ea1cb009532 Peter Xu 2023-08-21 234 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki