[hnaz-linux-mm:master 494/523] arch/powerpc/mm/kasan/kasan_init_32.c:124:16: error: implicit declaration of function 'pmd_ptr_k'; did you mean 'pmd_off_k'?
1:13 p.m.
tree: https://github.com/hnaz/linux-mm master
head: 2bbf0589bfeb27800c730b76eacf34528eee5418
commit: 724648314aafde8dce6440dbc849f80e45b83289 [494/523] mm: pgtable: add shortcuts for
accessing kernel PMD and PTE
config: powerpc-randconfig-r002-20200515 (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 724648314aafde8dce6440dbc849f80e45b83289
# 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(a)intel.com>
All error/warnings (new ones prefixed by >>, old ones prefixed by <<):
arch/powerpc/mm/kasan/kasan_init_32.c: In function
'kasan_unmap_early_shadow_vmalloc':
> arch/powerpc/mm/kasan/kasan_init_32.c:124:16: error: implicit
declaration of function 'pmd_ptr_k'; did you mean 'pmd_off_k'?
[-Werror=implicit-function-declaration]
124 | pmd_t *pmd = pmd_ptr_k(k_cur);
| ^~~~~~~~~
| pmd_off_k
> arch/powerpc/mm/kasan/kasan_init_32.c:124:16: warning:
initialization of 'pmd_t *' {aka 'struct <anonymous> *'} from
'int' makes pointer from integer without a cast [-Wint-conversion]
cc1: some
warnings being treated as errors
vim +124 arch/powerpc/mm/kasan/kasan_init_32.c
2edb16efc899f9 Christophe Leroy 2019-04-26 115
3d4247fcc938d0 Christophe Leroy 2020-01-14 116 static void __init
kasan_unmap_early_shadow_vmalloc(void)
3d4247fcc938d0 Christophe Leroy 2020-01-14 117 {
3d4247fcc938d0 Christophe Leroy 2020-01-14 118 unsigned long k_start = (unsigned
long)kasan_mem_to_shadow((void *)VMALLOC_START);
3d4247fcc938d0 Christophe Leroy 2020-01-14 119 unsigned long k_end = (unsigned
long)kasan_mem_to_shadow((void *)VMALLOC_END);
3d4247fcc938d0 Christophe Leroy 2020-01-14 120 unsigned long k_cur;
3d4247fcc938d0 Christophe Leroy 2020-01-14 121 phys_addr_t pa =
__pa(kasan_early_shadow_page);
3d4247fcc938d0 Christophe Leroy 2020-01-14 122
3d4247fcc938d0 Christophe Leroy 2020-01-14 123 for (k_cur = k_start & PAGE_MASK;
k_cur < k_end; k_cur += PAGE_SIZE) {
4a93b1104e586f Mike Rapoport 2020-05-16 @124 pmd_t *pmd = pmd_ptr_k(k_cur);
3d4247fcc938d0 Christophe Leroy 2020-01-14 125 pte_t *ptep = pte_offset_kernel(pmd,
k_cur);
3d4247fcc938d0 Christophe Leroy 2020-01-14 126
3d4247fcc938d0 Christophe Leroy 2020-01-14 127 if ((pte_val(*ptep) & PTE_RPN_MASK)
!= pa)
3d4247fcc938d0 Christophe Leroy 2020-01-14 128 continue;
3d4247fcc938d0 Christophe Leroy 2020-01-14 129
3d4247fcc938d0 Christophe Leroy 2020-01-14 130 __set_pte_at(&init_mm, k_cur, ptep,
__pte(0), 0);
3d4247fcc938d0 Christophe Leroy 2020-01-14 131 }
3d4247fcc938d0 Christophe Leroy 2020-01-14 132 flush_tlb_kernel_range(k_start, k_end);
3d4247fcc938d0 Christophe Leroy 2020-01-14 133 }
3d4247fcc938d0 Christophe Leroy 2020-01-14 134
:::::: The code at line 124 was first introduced by commit
:::::: 4a93b1104e586f284c8400200eabf37a51a961bc
powerpc-add-support-for-folded-p4d-page-tables-fix
:::::: TO: Mike Rapoport <rppt(a)linux.ibm.com>
:::::: CC: Johannes Weiner <hannes(a)cmpxchg.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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