From 060dc911501f6ee222569304f50962172a52b1d6 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Mon, 23 Dec 2019 13:00:04 +0200 Subject: nds32: fix build failure caused by page table folding updates The commit 7c2763c42326 ("nds32: use pgtable-nopmd instead of 4level-fixup") missed the pmd_off_k() macro which caused the following build error: CC arch/nds32/mm/highmem.o In file included from arch/nds32/include/asm/page.h:57, from include/linux/mm_types_task.h:16, from include/linux/mm_types.h:5, from include/linux/mmzone.h:21, from include/linux/gfp.h:6, from include/linux/xarray.h:14, from include/linux/radix-tree.h:18, from include/linux/fs.h:15, from include/linux/highmem.h:5, from arch/nds32/mm/highmem.c:5: arch/nds32/mm/highmem.c: In function 'kmap_atomic': arch/nds32/include/asm/pgtable.h:360:44: error: passing argument 1 of 'pmd_offset' from incompatible pointer type [-Werror=incompatible-pointer-types] #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ arch/nds32/include/asm/memory.h:33:29: note: in definition of macro '__phys_to_virt' #define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET) ^ arch/nds32/include/asm/pgtable.h:193:55: note: in expansion of macro '__va' #define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) ^~~~ include/asm-generic/pgtable-nop4d.h:41:24: note: in expansion of macro 'pgd_val' #define p4d_val(x) (pgd_val((x).pgd)) ^~~~~~~ include/asm-generic/pgtable-nopud.h:50:24: note: in expansion of macro 'p4d_val' #define pud_val(x) (p4d_val((x).p4d)) ^~~~~~~ include/asm-generic/pgtable-nopmd.h:49:24: note: in expansion of macro 'pud_val' #define pmd_val(x) (pud_val((x).pud)) ^~~~~~~ arch/nds32/include/asm/pgtable.h:193:60: note: in expansion of macro 'pmd_val' #define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) ^~~~~~~ arch/nds32/include/asm/pgtable.h:190:56: note: in expansion of macro 'pmd_page_kernel' #define pte_offset_kernel(dir, address) ((pte_t *)pmd_page_kernel(*(dir)) + pte_index(address)) ^~~~~~~~~~~~~~~ arch/nds32/mm/highmem.c:52:9: note: in expansion of macro 'pte_offset_kernel' ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr); ^~~~~~~~~~~~~~~~~ arch/nds32/include/asm/pgtable.h:362:33: note: in expansion of macro 'pgd_offset' #define pgd_offset_k(addr) pgd_offset(&init_mm, addr) ^~~~~~~~~~ arch/nds32/include/asm/pgtable.h:198:39: note: in expansion of macro 'pgd_offset_k' #define pmd_off_k(address) pmd_offset(pgd_offset_k(address), address) ^~~~~~~~~~~~ arch/nds32/mm/highmem.c:52:27: note: in expansion of macro 'pmd_off_k' ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr); ^~~~~~~~~ In file included from arch/nds32/include/asm/pgtable.h:7, from include/linux/mm.h:99, from include/linux/highmem.h:8, from arch/nds32/mm/highmem.c:5: include/asm-generic/pgtable-nopmd.h:44:42: note: expected 'pud_t *' {aka 'struct *'} but argument is of type 'pgd_t *' {aka 'long unsigned int *'} static inline pmd_t * pmd_offset(pud_t * pud, unsigned long address) ~~~~~~~~^~~ In file included from arch/nds32/include/asm/page.h:57, from include/linux/mm_types_task.h:16, from include/linux/mm_types.h:5, from include/linux/mmzone.h:21, from include/linux/gfp.h:6, from include/linux/xarray.h:14, from include/linux/radix-tree.h:18, from include/linux/fs.h:15, from include/linux/highmem.h:5, from arch/nds32/mm/highmem.c:5: Updating the pmd_off_k() macro to use the correct page table unfolding fixes the issue. Fixes: 7c2763c42326 ("nds32: use pgtable-nopmd instead of 4level-fixup") Link: https://lore.kernel.org/lkml/201912212139.yptX8CsV%25lkp@intel.com/ Reported-by: kbuild test robot Signed-off-by: Mike Rapoport Reviewed-by: Greentime Hu Signed-off-by: Arnd Bergmann --- arch/nds32/include/asm/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h index 0214e4150539..6abc58ac406d 100644 --- a/arch/nds32/include/asm/pgtable.h +++ b/arch/nds32/include/asm/pgtable.h @@ -195,7 +195,7 @@ extern void paging_init(void); #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0) -#define pmd_off_k(address) pmd_offset(pgd_offset_k(address), address) +#define pmd_off_k(address) pmd_offset(pud_offset(p4d_offset(pgd_offset_k(address), (address)), (address)), (address)) #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) /* -- cgit v1.2.3