On Thu, Apr 23, 2020 at 09:50:03PM +0800, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 39a314cd1168cbcb05ebcd973098c8f1440a3064 > commit: 0640b7608c394b849e21e4731c60a524e39b3202 [2867/3715] powerpc: add support for folded p4d page tables > config: powerpc-randconfig-a001-20200422 (attached as .config) > compiler: powerpc-linux-gcc (GCC) 9.3.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout 0640b7608c394b849e21e4731c60a524e39b3202 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=powerpc > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kbuild test robot <lkp@xxxxxxxxx> Andrew, can you please add the following diff as a fixup for "powerpc: add support for folded p4d page tables" diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c index cbcad369fcb2..c99aa8cbaac5 100644 --- a/arch/powerpc/mm/kasan/kasan_init_32.c +++ b/arch/powerpc/mm/kasan/kasan_init_32.c @@ -121,7 +121,7 @@ static void __init kasan_unmap_early_shadow_vmalloc(void) phys_addr_t pa = __pa(kasan_early_shadow_page); for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { - pmd_t *pmd = pmd_offset(pud_offset(pgd_offset_k(k_cur), k_cur), k_cur); + pmd_t *pmd = pmd_ptr_k(k_cur); pte_t *ptep = pte_offset_kernel(pmd, k_cur); if ((pte_val(*ptep) & PTE_RPN_MASK) != pa) > All error/warnings (new ones prefixed by >>): > > In file included from arch/powerpc/include/asm/book3s/pgtable.h:8, > from arch/powerpc/include/asm/pgtable.h:18, > from include/linux/kasan.h:15, > from arch/powerpc/mm/kasan/kasan_init_32.c:5: > arch/powerpc/mm/kasan/kasan_init_32.c: In function 'kasan_unmap_early_shadow_vmalloc': > >> arch/powerpc/include/asm/book3s/32/pgtable.h:361:45: error: passing argument 1 of 'pud_offset' from incompatible pointer type [-Werror=incompatible-pointer-types] > 361 | #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) > | ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ > | | > | pgd_t * {aka struct <anonymous> *} > >> arch/powerpc/include/asm/book3s/32/pgtable.h:357:31: note: in expansion of macro 'pgd_offset' > 357 | #define pgd_offset_k(address) pgd_offset(&init_mm, address) > | ^~~~~~~~~~ > >> arch/powerpc/mm/kasan/kasan_init_32.c:124:38: note: in expansion of macro 'pgd_offset_k' > 124 | pmd_t *pmd = pmd_offset(pud_offset(pgd_offset_k(k_cur), k_cur), k_cur); > | ^~~~~~~~~~~~ > In file included from include/asm-generic/pgtable-nopmd.h:7, > from arch/powerpc/include/asm/book3s/32/pgtable.h:5, > from arch/powerpc/include/asm/book3s/pgtable.h:8, > from arch/powerpc/include/asm/pgtable.h:18, > from include/linux/kasan.h:15, > from arch/powerpc/mm/kasan/kasan_init_32.c:5: > include/asm-generic/pgtable-nopud.h:45:40: note: expected 'p4d_t *' {aka 'struct <anonymous> *'} but argument is of type 'pgd_t *' {aka 'struct <anonymous> *'} > 45 | static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address) > | ~~~~~~~^~~ > cc1: all warnings being treated as errors > > vim +/pud_offset +361 arch/powerpc/include/asm/book3s/32/pgtable.h > > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 350 > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 351 #define pmd_page_vaddr(pmd) \ > 32ea4c14999006 Christophe Leroy 2018-11-29 352 ((unsigned long)__va(pmd_val(pmd) & ~(PTE_TABLE_SIZE - 1))) > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 353 #define pmd_page(pmd) \ > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 354 pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT) > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 355 > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 356 /* to find an entry in a kernel page-table-directory */ > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 @357 #define pgd_offset_k(address) pgd_offset(&init_mm, address) > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 358 > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 359 /* to find an entry in a page-table-directory */ > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 360 #define pgd_index(address) ((address) >> PGDIR_SHIFT) > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 @361 #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) > 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 362 > > :::::: The code at line 361 was first introduced by commit > :::::: 3dfcb315d81e663bf70401de61940c1b4de2deea powerpc/mm: make a separate copy for book3s > > :::::: TO: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> > :::::: CC: Michael Ellerman <mpe@xxxxxxxxxxxxxx> > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx -- Sincerely yours, Mike.
