[PATCH v2 04/13] mm/debug_vm_pgtables/hugevmap: Use the arch helper to identify huge vmap support.

[kernel test robot]

Hi "Aneesh,

I love your patch! Yet something to improve:

[auto build test ERROR on hnaz-linux-mm/master]
[also build test ERROR on powerpc/next linus/master v5.9-rc1 next-20200819]
[cannot apply to mmotm/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/mm-debug_vm_pgtable-fixes/20200819-213446
base:   https://github.com/hnaz/linux-mm master
config: i386-randconfig-s002-20200818 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.2-183-gaa6ede3b-dirty
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

>> arch/x86/mm/ioremap.c:484:12: error: redefinition of 'arch_ioremap_p4d_supported'
     484 | int __init arch_ioremap_p4d_supported(void)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from arch/x86/mm/ioremap.c:12:
   include/linux/io.h:41:19: note: previous definition of 'arch_ioremap_p4d_supported' was here
      41 | static inline int arch_ioremap_p4d_supported(void)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/x86/mm/ioremap.c:489:12: error: redefinition of 'arch_ioremap_pud_supported'
     489 | int __init arch_ioremap_pud_supported(void)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from arch/x86/mm/ioremap.c:12:
   include/linux/io.h:45:19: note: previous definition of 'arch_ioremap_pud_supported' was here
      45 | static inline int arch_ioremap_pud_supported(void)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/x86/mm/ioremap.c:498:12: error: redefinition of 'arch_ioremap_pmd_supported'
     498 | int __init arch_ioremap_pmd_supported(void)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from arch/x86/mm/ioremap.c:12:
   include/linux/io.h:49:19: note: previous definition of 'arch_ioremap_pmd_supported' was here
      49 | static inline int arch_ioremap_pmd_supported(void)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/x86/mm/ioremap.c:737:17: warning: no previous prototype for 'early_memremap_pgprot_adjust' [-Wmissing-prototypes]
     737 | pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr,
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

# https://github.com/0day-ci/linux/commit/260b675444a7d5afa9ccef47ca9e588fb18d01a3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Aneesh-Kumar-K-V/mm-debug_vm_pgtable-fixes/20200819-213446
git checkout 260b675444a7d5afa9ccef47ca9e588fb18d01a3
vim +/arch_ioremap_p4d_supported +484 arch/x86/mm/ioremap.c

^1da177e4c3f41 arch/i386/mm/ioremap.c Linus Torvalds    2005-04-16  483  
0f472d04f59ff8 arch/x86/mm/ioremap.c  Anshuman Khandual 2019-07-16 @484  int __init arch_ioremap_p4d_supported(void)
0f472d04f59ff8 arch/x86/mm/ioremap.c  Anshuman Khandual 2019-07-16  485  {
0f472d04f59ff8 arch/x86/mm/ioremap.c  Anshuman Khandual 2019-07-16  486  	return 0;
0f472d04f59ff8 arch/x86/mm/ioremap.c  Anshuman Khandual 2019-07-16  487  }
0f472d04f59ff8 arch/x86/mm/ioremap.c  Anshuman Khandual 2019-07-16  488  
1e6277de3a2337 arch/x86/mm/ioremap.c  Jan Beulich       2015-05-28 @489  int __init arch_ioremap_pud_supported(void)
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  490  {
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  491  #ifdef CONFIG_X86_64
b8291adc191abe arch/x86/mm/ioremap.c  Borislav Petkov   2016-03-29  492  	return boot_cpu_has(X86_FEATURE_GBPAGES);
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  493  #else
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  494  	return 0;
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  495  #endif
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  496  }
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  497  
1e6277de3a2337 arch/x86/mm/ioremap.c  Jan Beulich       2015-05-28 @498  int __init arch_ioremap_pmd_supported(void)
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  499  {
16bf92261b1b6c arch/x86/mm/ioremap.c  Borislav Petkov   2016-03-29  500  	return boot_cpu_has(X86_FEATURE_PSE);
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  501  }
5d72b4fba40ef4 arch/x86/mm/ioremap.c  Toshi Kani        2015-04-14  502  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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