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charset=us-ascii Content-Disposition: inline tree: https://gitee.com/anolis/intel-cloud-kernel.git devel-6.6 head: 83b17ccb9899d35bc10eaa78f87da816e711f9e3 commit: f1c74747e787a574212337dae6baea4177ec03e6 [0/1] anolis: mm: support fast reflink config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20250228/202502281619.LbobQJMQ-lkp@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/20250228/202502281619.LbobQJMQ-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/202502281619.LbobQJMQ-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/memory.c: In function 'fr_apply_vma': >> mm/memory.c:6757:15: warning: unused variable 'pmd' [-Wunused-variable] 6757 | pmd_t pmd; | ^~~ vim +/pmd +6757 mm/memory.c 6748 6749 static void fr_apply_vma(struct vm_area_struct *vma) 6750 { 6751 struct mm_struct *mm = vma->vm_mm; 6752 unsigned long start = vma->vm_start; 6753 unsigned long end = vma->vm_end; 6754 unsigned long next; 6755 spinlock_t *pml; 6756 pmd_t *pmdp = NULL; > 6757 pmd_t pmd; 6758 bool applied = false; 6759 6760 do { 6761 next = pmd_addr_end(start, end); 6762 if (follow_pmd(mm, start, &pmdp)) 6763 continue; 6764 6765 pml = pmd_lock(mm, pmdp); 6766 if (pmd_huge(*pmdp)) { 6767 #ifdef CONFIG_FS_DAX_PMD 6768 if (!pmd_dirty(*pmdp) && !pmd_write(*pmdp)) 6769 goto unlock_pmd; 6770 6771 pmd = pmdp_invalidate(vma, start, pmdp); 6772 pmd = pmd_wrprotect(pmd); 6773 pmd = pmd_mkclean(pmd); 6774 set_pmd_at(mm, start, pmdp, pmd); 6775 unlock_pmd: 6776 #endif 6777 spin_unlock(pml); 6778 continue; 6779 } 6780 6781 if (pmd_none(*pmdp) || unlikely(pmd_bad(*pmdp))) { 6782 spin_unlock(pml); 6783 continue; 6784 } 6785 6786 if (IS_ALIGNED(start, PMD_SIZE) && (start + PMD_SIZE <= end)) { 6787 pmdp_set_tbl_wrprotect(mm, start, pmdp); 6788 flush_tlb_range(vma, start, start + PMD_SIZE); 6789 applied = true; 6790 spin_unlock(pml); 6791 continue; 6792 } else { 6793 spin_unlock(pml); 6794 fr_apply_pte_range(vma, pmdp, start, next); 6795 flush_tlb_range(vma, start, next); 6796 continue; 6797 } 6798 } while (start = next, start != end); 6799 6800 if (applied) 6801 vma->fast_reflink = applied; 6802 } 6803 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki