linux-kernel - arch/powerpc/mm/book3s64/pgtable.c:422:6: error: no previous prototype for 'arch_report

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Message-ID: <202307252035.aAJZfroP-lkp@intel.com>
Date:   Tue, 25 Jul 2023 20:47:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Christian Brauner <brauner@...nel.org>,
        Alexander Gordeev <agordeev@...ux.ibm.com>
Subject: arch/powerpc/mm/book3s64/pgtable.c:422:6: error: no previous
 prototype for 'arch_report_meminfo'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0b5547c51827e053cc754db47d3ec3e6c2c451d2
commit: ef104443bffa004f631729dfc924f0b84abbd602 procfs: consolidate arch_report_meminfo declaration
date:   10 weeks ago
config: powerpc-maple_defconfig (https://download.01.org/0day-ci/archive/20230725/202307252035.aAJZfroP-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230725/202307252035.aAJZfroP-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307252035.aAJZfroP-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/powerpc/mm/book3s64/pgtable.c:422:6: error: no previous prototype for 'arch_report_meminfo' [-Werror=missing-prototypes]
     422 | void arch_report_meminfo(struct seq_file *m)
         |      ^~~~~~~~~~~~~~~~~~~
   arch/powerpc/mm/book3s64/pgtable.c:478:5: error: no previous prototype for 'pmd_move_must_withdraw' [-Werror=missing-prototypes]
     478 | int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
         |     ^~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/arch_report_meminfo +422 arch/powerpc/mm/book3s64/pgtable.c

a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  421  
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13 @422  void arch_report_meminfo(struct seq_file *m)
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  423  {
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  424  	/*
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  425  	 * Hash maps the memory with one size mmu_linear_psize.
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  426  	 * So don't bother to print these on hash
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  427  	 */
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  428  	if (!radix_enabled())
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  429  		return;
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  430  	seq_printf(m, "DirectMap4k:    %8lu kB\n",
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  431  		   atomic_long_read(&direct_pages_count[MMU_PAGE_4K]) << 2);
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  432  	seq_printf(m, "DirectMap64k:    %8lu kB\n",
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  433  		   atomic_long_read(&direct_pages_count[MMU_PAGE_64K]) << 6);
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  434  	seq_printf(m, "DirectMap2M:    %8lu kB\n",
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  435  		   atomic_long_read(&direct_pages_count[MMU_PAGE_2M]) << 11);
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  436  	seq_printf(m, "DirectMap1G:    %8lu kB\n",
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  437  		   atomic_long_read(&direct_pages_count[MMU_PAGE_1G]) << 20);
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  438  }
a2dc009afa9ae8 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2018-08-13  439  #endif /* CONFIG_PROC_FS */
579b9239c1f386 arch/powerpc/mm/pgtable-book3s64.c Aneesh Kumar K.V 2019-01-23  440  

:::::: The code at line 422 was first introduced by commit
:::::: a2dc009afa9ae8b92305be7728676562a104cb40 powerpc/mm/book3s/radix: Add mapping statistics

:::::: TO: Aneesh Kumar K.V <aneesh.kumar@...ux.ibm.com>
:::::: CC: Michael Ellerman <mpe@...erman.id.au>

-- 
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https://github.com/intel/lkp-tests/wiki