linux-kernel - mm/sparse.c:347:27: warning: unused function 'pgdat_to

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Date:   Sat, 21 Jan 2023 01:45:06 +0800
From:   kernel test robot <lkp@...el.com>
To:     Miles Chen <miles.chen@...iatek.com>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: mm/sparse.c:347:27: warning: unused function 'pgdat_to_phys'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d368967cb1039b5c4cccb62b5a4b9468c50cd143
commit: ccbd6283a9b640c8d5c2b44db318fd72a63338ff mm/sparse: fix check_usemap_section_nr warnings
date:   1 year, 7 months ago
config: x86_64-randconfig-a003-20230116 (https://download.01.org/0day-ci/archive/20230121/202301210155.1E5zABb5-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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=ccbd6283a9b640c8d5c2b44db318fd72a63338ff
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout ccbd6283a9b640c8d5c2b44db318fd72a63338ff
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

>> mm/sparse.c:347:27: warning: unused function 'pgdat_to_phys' [-Wunused-function]
   static inline phys_addr_t pgdat_to_phys(struct pglist_data *pgdat)
                             ^
   1 warning generated.


vim +/pgdat_to_phys +347 mm/sparse.c

   346	
 > 347	static inline phys_addr_t pgdat_to_phys(struct pglist_data *pgdat)
   348	{
   349	#ifndef CONFIG_NEED_MULTIPLE_NODES
   350		return __pa_symbol(pgdat);
   351	#else
   352		return __pa(pgdat);
   353	#endif
   354	}
   355	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests