linux-kernel - arch/powerpc/mm/book3s64/pgtable.c:174:15: error: no previous prototype for 'create_section

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Message-ID: <202011241003.eYk8XbNj-lkp@intel.com>
Date:   Tue, 24 Nov 2020 10:12:09 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Christoph Hellwig <hch@....de>
Subject: arch/powerpc/mm/book3s64/pgtable.c:174:15: error: no previous
 prototype for 'create_section_mapping'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d5beb3140f91b1c8a3d41b14d729aefa4dcc58bc
commit: a927bd6ba952d13c52b8b385030943032f659a3e mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports
date:   31 hours ago
config: powerpc-randconfig-r024-20201123 (attached as .config)
compiler: powerpc64le-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a927bd6ba952d13c52b8b385030943032f659a3e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout a927bd6ba952d13c52b8b385030943032f659a3e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>):

>> arch/powerpc/mm/book3s64/pgtable.c:174:15: error: no previous prototype for 'create_section_mapping' [-Werror=missing-prototypes]
     174 | int __meminit create_section_mapping(unsigned long start, unsigned long end,
         |               ^~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/mm/book3s64/pgtable.c:405:6: error: no previous prototype for 'arch_report_meminfo' [-Werror=missing-prototypes]
     405 | void arch_report_meminfo(struct seq_file *m)
         |      ^~~~~~~~~~~~~~~~~~~
   arch/powerpc/mm/book3s64/pgtable.c:461:5: error: no previous prototype for 'pmd_move_must_withdraw' [-Werror=missing-prototypes]
     461 | int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
         |     ^~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/create_section_mapping +174 arch/powerpc/mm/book3s64/pgtable.c

32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  172  
32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  173  #ifdef CONFIG_MEMORY_HOTPLUG
4e00c5affdd4b04 arch/powerpc/mm/book3s64/pgtable.c Logan Gunthorpe 2020-04-10 @174  int __meminit create_section_mapping(unsigned long start, unsigned long end,
4e00c5affdd4b04 arch/powerpc/mm/book3s64/pgtable.c Logan Gunthorpe 2020-04-10  175  				     int nid, pgprot_t prot)
32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  176  {
32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  177  	if (radix_enabled())
4e00c5affdd4b04 arch/powerpc/mm/book3s64/pgtable.c Logan Gunthorpe 2020-04-10  178  		return radix__create_section_mapping(start, end, nid, prot);
32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  179  
4e00c5affdd4b04 arch/powerpc/mm/book3s64/pgtable.c Logan Gunthorpe 2020-04-10  180  	return hash__create_section_mapping(start, end, nid, prot);
32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  181  }
32b53c012e0bfe2 arch/powerpc/mm/pgtable-book3s64.c Reza Arbab      2017-01-03  182  

:::::: The code at line 174 was first introduced by commit
:::::: 4e00c5affdd4b04e6392001716333971932f3d0c powerpc/mm: thread pgprot_t through create_section_mapping()

:::::: TO: Logan Gunthorpe <logang@...tatee.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

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

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