tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: cd685d8558e92f3d3ba7e070ac03ae2585f70ba1 commit: dd968da779361ddf808028d34ab1d6d91e94a218 [8316/8584] mm-support-madvisemadv_free-vs-thp-rename-split_huge_page_pmd-to-split_huge_pmd reproduce: # apt-get install sparse git checkout dd968da779361ddf808028d34ab1d6d91e94a218 make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> mm/madvise.c:280:9: sparse: incorrect type in initializer (different base types) mm/madvise.c:280:9: expected struct pmd_t [usertype] *____pmd mm/madvise.c:280:9: got unsigned long [unsigned] addr >> mm/madvise.c:280:9: sparse: incorrect type in argument 2 (different base types) mm/madvise.c:280:9: expected struct pmd_t [usertype] *pmd mm/madvise.c:280:9: got unsigned long [unsigned] addr >> mm/madvise.c:280:9: sparse: incorrect type in argument 3 (different base types) mm/madvise.c:280:9: expected unsigned long [unsigned] address mm/madvise.c:280:9: got struct pmd_t [usertype] *pmd In file included from include/linux/mm.h:322:0, from include/linux/mman.h:4, from mm/madvise.c:8: mm/madvise.c: In function 'madvise_free_pte_range': include/linux/huge_mm.h:108:20: warning: initialization makes pointer from integer without a cast [-Wint-conversion] pmd_t *____pmd = (__pmd); \ ^ mm/madvise.c:280:2: note: in expansion of macro 'split_huge_pmd' split_huge_pmd(vma, addr, pmd); ^ mm/madvise.c:280:22: warning: passing argument 2 of '__split_huge_pmd' makes pointer from integer without a cast [-Wint-conversion] split_huge_pmd(vma, addr, pmd); ^ include/linux/huge_mm.h:110:28: note: in definition of macro 'split_huge_pmd' __split_huge_pmd(__vma, __pmd, __address); \ ^ include/linux/huge_mm.h:103:6: note: expected 'pmd_t * {aka struct <anonymous> *}' but argument is of type 'long unsigned int' void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, ^ mm/madvise.c:280:28: warning: passing argument 3 of '__split_huge_pmd' makes integer from pointer without a cast [-Wint-conversion] split_huge_pmd(vma, addr, pmd); ^ include/linux/huge_mm.h:110:35: note: in definition of macro 'split_huge_pmd' __split_huge_pmd(__vma, __pmd, __address); \ ^ include/linux/huge_mm.h:103:6: note: expected 'long unsigned int' but argument is of type 'pmd_t * {aka struct <anonymous> *}' void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, ^ vim +280 mm/madvise.c 264 force_page_cache_readahead(file->f_mapping, file, start, end - start); 265 return 0; 266 } 267 268 static int madvise_free_pte_range(pmd_t *pmd, unsigned long addr, 269 unsigned long end, struct mm_walk *walk) 270 271 { 272 struct madvise_free_private *fp = walk->private; 273 struct mmu_gather *tlb = fp->tlb; 274 struct mm_struct *mm = tlb->mm; 275 struct vm_area_struct *vma = fp->vma; 276 spinlock_t *ptl; 277 pte_t *pte, ptent; 278 struct page *page; 279 > 280 split_huge_pmd(vma, addr, pmd); 281 if (pmd_trans_unstable(pmd)) 282 return 0; 283 284 pte = pte_offset_map_lock(mm, pmd, addr, &ptl); 285 arch_enter_lazy_mmu_mode(); 286 for (; addr != end; pte++, addr += PAGE_SIZE) { 287 ptent = *pte; 288 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>