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charset=us-ascii Content-Disposition: inline tree: https://android.googlesource.com/kernel/common android13-5.15 head: daab5d890e9f319433eac9dc2895ce9ec873eb58 commit: 9b613572d6246da9b616f34e4a0e0b5ac74b2dd0 [1/1] ANDROID: userfaultfd: allow SPF for UFFD_FEATURE_SIGBUS on private+anon config: i386-randconfig-r133-20250520 (https://download.01.org/0day-ci/archive/20250520/202505202013.LEviLEVe-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250520/202505202013.LEviLEVe-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/202505202013.LEviLEVe-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/mmap.c: note: in included file (through include/linux/hugetlb.h): >> include/linux/userfaultfd_k.h:81:64: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/userfaultfd_k.h:81:64: sparse: struct userfaultfd_ctx * include/linux/userfaultfd_k.h:81:64: sparse: struct userfaultfd_ctx [noderef] __rcu * >> include/linux/userfaultfd_k.h:81:64: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/userfaultfd_k.h:81:64: sparse: struct userfaultfd_ctx * include/linux/userfaultfd_k.h:81:64: sparse: struct userfaultfd_ctx [noderef] __rcu * vim +81 include/linux/userfaultfd_k.h 58 59 extern int mfill_atomic_install_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd, 60 struct vm_area_struct *dst_vma, 61 unsigned long dst_addr, struct page *page, 62 bool newly_allocated, bool wp_copy); 63 64 extern ssize_t mcopy_atomic(struct mm_struct *dst_mm, unsigned long dst_start, 65 unsigned long src_start, unsigned long len, 66 atomic_t *mmap_changing, __u64 mode); 67 extern ssize_t mfill_zeropage(struct mm_struct *dst_mm, 68 unsigned long dst_start, 69 unsigned long len, 70 atomic_t *mmap_changing); 71 extern ssize_t mcopy_continue(struct mm_struct *dst_mm, unsigned long dst_start, 72 unsigned long len, atomic_t *mmap_changing); 73 extern int mwriteprotect_range(struct mm_struct *dst_mm, 74 unsigned long start, unsigned long len, 75 bool enable_wp, atomic_t *mmap_changing); 76 77 /* mm helpers */ 78 static inline bool is_mergeable_vm_userfaultfd_ctx(struct vm_area_struct *vma, 79 struct vm_userfaultfd_ctx vm_ctx) 80 { > 81 return rcu_access_pointer(vma->vm_userfaultfd_ctx.ctx) == vm_ctx.ctx; 82 } 83 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki