tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git quotaoff-cleanups-5.14 head: a1f5d2033e4e314fb8a52a151dd6e1f389f4bc4b commit: 22506fb74c2f1170af9344fc7a84048185e19aca [9/13] xfs: move the quotaoff dqrele inode walk into xfs_icache.c config: x86_64-randconfig-a011-20210518 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project ceb1ac9812cb0972cfa34cecc5e5704ae2a22063) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git fetch --no-tags djwong-xfs quotaoff-cleanups-5.14 git checkout 22506fb74c2f1170af9344fc7a84048185e19aca # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): xfs_inode_walk( ^ fs/xfs/xfs_icache.c:893:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static 1 warning generated. vim +/xfs_inode_walk +894 fs/xfs/xfs_icache.c 5662d38ccdbd9e Darrick J. Wong 2020-05-21 888 5662d38ccdbd9e Darrick J. Wong 2020-05-21 889 /* 5662d38ccdbd9e Darrick J. Wong 2020-05-21 890 * Call the @execute function on all incore inodes matching the radix tree 5662d38ccdbd9e Darrick J. Wong 2020-05-21 891 * @tag. 5662d38ccdbd9e Darrick J. Wong 2020-05-21 892 */ 5662d38ccdbd9e Darrick J. Wong 2020-05-21 893 int 042f65f4a79c81 Darrick J. Wong 2020-05-21 @894 xfs_inode_walk( 5662d38ccdbd9e Darrick J. Wong 2020-05-21 895 struct xfs_mount *mp, 5662d38ccdbd9e Darrick J. Wong 2020-05-21 896 int iter_flags, 5662d38ccdbd9e Darrick J. Wong 2020-05-21 897 int (*execute)(struct xfs_inode *ip, void *args), 5662d38ccdbd9e Darrick J. Wong 2020-05-21 898 void *args, 5662d38ccdbd9e Darrick J. Wong 2020-05-21 899 int tag) 5662d38ccdbd9e Darrick J. Wong 2020-05-21 900 { 5662d38ccdbd9e Darrick J. Wong 2020-05-21 901 struct xfs_perag *pag; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 902 int error = 0; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 903 int last_error = 0; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 904 xfs_agnumber_t ag; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 905 5662d38ccdbd9e Darrick J. Wong 2020-05-21 906 ag = 0; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 907 while ((pag = xfs_inode_walk_get_perag(mp, ag, tag))) { 5662d38ccdbd9e Darrick J. Wong 2020-05-21 908 ag = pag->pag_agno + 1; 964176bd32da98 Darrick J. Wong 2020-05-21 909 error = xfs_inode_walk_ag(pag, iter_flags, execute, args, tag); 5662d38ccdbd9e Darrick J. Wong 2020-05-21 910 xfs_perag_put(pag); 5662d38ccdbd9e Darrick J. Wong 2020-05-21 911 if (error) { 5662d38ccdbd9e Darrick J. Wong 2020-05-21 912 last_error = error; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 913 if (error == -EFSCORRUPTED) 5662d38ccdbd9e Darrick J. Wong 2020-05-21 914 break; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 915 } 5662d38ccdbd9e Darrick J. Wong 2020-05-21 916 } 5662d38ccdbd9e Darrick J. Wong 2020-05-21 917 return last_error; 5662d38ccdbd9e Darrick J. Wong 2020-05-21 918 } 5662d38ccdbd9e Darrick J. Wong 2020-05-21 919 :::::: The code at line 894 was first introduced by commit :::::: 042f65f4a79c819d74309c2607959fccacc4094a xfs: straighten out all the naming around incore inode tree walks :::::: TO: Darrick J. Wong <darrick.wong(a)oracle.com&gt; :::::: CC: Darrick J. Wong <darrick.wong(a)oracle.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org