[kbuild-all] [jpirko-mlxsw:net_next_queue 21/27] net/core/devlink.c:7388:23: warning: address of array 'attrs->switch_id.id' will always evaluate to 'true'

tree: https://github.com/jpirko/linux_mlxsw net_next_queue head: f57f2148543db358708e16537ab5c87f5da6abba commit: 9cc195db08f0779fe92deac4da99879d95d8fe96 [21/27] devlink: Replace devlink_port_attrs_set parameters with a struct config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 487ca07fcc75d52755c9fe2ee05bcb3b6eeeec44) 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 git checkout 9cc195db08f0779fe92deac4da99879d95d8fe96 # 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 >>, old ones prefixed by <<): if (attrs->switch_id.id) { ~~ ~~~~~~~~~~~~~~~~~^~ 1 warning generated. vim +7388 net/core/devlink.c 7378 7379 static int __devlink_port_attrs_set(struct devlink_port *devlink_port, 7380 enum devlink_port_flavour flavour) 7381 { 7382 struct devlink_port_attrs *attrs = &devlink_port->attrs; 7383 7384 if (WARN_ON(devlink_port->registered)) 7385 return -EEXIST; 7386 devlink_port->attrs_set = true; 7387 attrs->flavour = flavour; 7389 devlink_port->switch_port = true; 7390 if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) 7391 attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; 7392 } else { 7393 devlink_port->switch_port = false; 7394 } 7395 return 0; 7396 } 7397 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org