[kbuild-all] [zen-kernel-zen-kernel:5.8/zen-sauce 4/26] fs/orangefs/super.c:402:2: warning: 'strncpy' output may be truncated copying 255 bytes from a string of length 255

tree: https://github.com/zen-kernel/zen-kernel 5.8/zen-sauce head: 4ae00f4cbefe933616f33bf79935393ec49dbfa3 commit: bf804ff720d6aa54c15d9783fb9e067df94ff2e8 [4/26] ZEN: Unrestrict CONFIG_OPTIMIZE_FOR_PERFORMANCE_O3 config: sparc-randconfig-r026-20200913 (attached as .config) compiler: sparc-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 git checkout bf804ff720d6aa54c15d9783fb9e067df94ff2e8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc 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 >>): In file included from fs/orangefs/protocol.h:287, from fs/orangefs/super.c:8: fs/orangefs/orangefs-debug.h:86:18: warning: 'num_kmod_keyword_mask_map' defined but not used [-Wunused-const-variable=] 86 | static const int num_kmod_keyword_mask_map = (int) | ^~~~~~~~~~~~~~~~~~~~~~~~~ In function 'orangefs_unmount', inlined from 'orangefs_kill_sb' at fs/orangefs/super.c:615:6: 402 | strncpy(op->upcall.req.fs_umount.orangefs_config_server, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 403 | devname, ORANGEFS_MAX_SERVER_ADDR_LEN - 1); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # https://github.com/zen-kernel/zen-kernel/commit/bf804ff720d6aa54c15d9783f... git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel git fetch --no-tags zen-kernel-zen-kernel 5.8/zen-sauce git checkout bf804ff720d6aa54c15d9783fb9e067df94ff2e8 vim +/strncpy +402 fs/orangefs/super.c 1182fca3bc00441 Mike Marshall 2015-07-17 392 9d286b0d8207a70 Martin Brandenburg 2017-04-25 393 static int orangefs_unmount(int id, __s32 fs_id, const char *devname) 9d286b0d8207a70 Martin Brandenburg 2017-04-25 394 { 9d286b0d8207a70 Martin Brandenburg 2017-04-25 395 struct orangefs_kernel_op_s *op; 9d286b0d8207a70 Martin Brandenburg 2017-04-25 396 int r; 9d286b0d8207a70 Martin Brandenburg 2017-04-25 397 op = op_alloc(ORANGEFS_VFS_OP_FS_UMOUNT); 9d286b0d8207a70 Martin Brandenburg 2017-04-25 398 if (!op) 9d286b0d8207a70 Martin Brandenburg 2017-04-25 399 return -ENOMEM; 9d286b0d8207a70 Martin Brandenburg 2017-04-25 400 op->upcall.req.fs_umount.id = id; 9d286b0d8207a70 Martin Brandenburg 2017-04-25 401 op->upcall.req.fs_umount.fs_id = fs_id; 9d286b0d8207a70 Martin Brandenburg 2017-04-25 @402 strncpy(op->upcall.req.fs_umount.orangefs_config_server, 6bdfb48dae8e1b9 Xiongfeng Wang 2018-01-08 403 devname, ORANGEFS_MAX_SERVER_ADDR_LEN - 1); 9d286b0d8207a70 Martin Brandenburg 2017-04-25 404 r = service_operation(op, "orangefs_fs_umount", 0); 9d286b0d8207a70 Martin Brandenburg 2017-04-25 405 /* Not much to do about an error here. */ 9d286b0d8207a70 Martin Brandenburg 2017-04-25 406 if (r) 9d286b0d8207a70 Martin Brandenburg 2017-04-25 407 gossip_err("orangefs_unmount: service_operation %d\n", r); 9d286b0d8207a70 Martin Brandenburg 2017-04-25 408 op_release(op); 9d286b0d8207a70 Martin Brandenburg 2017-04-25 409 return r; 9d286b0d8207a70 Martin Brandenburg 2017-04-25 410 } 9d286b0d8207a70 Martin Brandenburg 2017-04-25 411 :::::: The code at line 402 was first introduced by commit :::::: 9d286b0d8207a70d7e0ffbd5be864ff7a62de05a orangefs: ensure the userspace component is unmounted if mount fails :::::: TO: Martin Brandenburg <martin(a)omnibond.com&gt; :::::: CC: Mike Marshall <hubcap(a)omnibond.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org