tree: https://github.com/morimoto/linux sound/2021-05-19-v1 head: d9ea427068846f93ab97650cad49c16c901ee98e commit: 414cf7fa2902ffed9742c0e71908061b5199fc1c [106/107] ASoC: rsnd: add debugfs support config: ia64-randconfig-r002-20210519 (attached as .config) compiler: ia64-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://github.com/morimoto/linux/commit/414cf7fa2902ffed9742c0e71908061b... git remote add morimoto-linux https://github.com/morimoto/linux git fetch --no-tags morimoto-linux sound/2021-05-19-v1 git checkout 414cf7fa2902ffed9742c0e71908061b5199fc1c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 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 arch/ia64/include/asm/pgtable.h:154, from include/linux/pgtable.h:6, from arch/ia64/include/asm/uaccess.h:40, from include/linux/uaccess.h:11, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from include/linux/rcuwait.h:6, from include/linux/percpu-rwsem.h:7, from include/linux/fs.h:33, from include/linux/debugfs.h:15, from sound/soc/sh/rcar/debugfs.c:14: arch/ia64/include/asm/mmu_context.h: In function 'reload_context': arch/ia64/include/asm/mmu_context.h:127:41: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable] 127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4; | ^~~~~~~ sound/soc/sh/rcar/debugfs.c: In function 'rsnd_debugfs_probe': 68 | struct dentry *root, *dir; | ^~~~ vim +/root +68 sound/soc/sh/rcar/debugfs.c 63 64 int rsnd_debugfs_probe(struct snd_soc_component *component) 65 { 66 struct rsnd_priv *priv = dev_get_drvdata(component->dev); 67 struct rsnd_dai *rdai; 69 char name[64]; 70 int i; 71 72 /* Gen1 is not supported */ 73 if (rsnd_is_gen1(priv)) 74 return 0; 75 76 for_each_rsnd_dai(rdai, priv, i) { 77 /* 78 * created debugfs will be automatically 79 * removed, nothing to do for _remove. 80 * see 81 * soc_cleanup_component_debugfs() 82 */ 83 snprintf(name, sizeof(name), "rdai%d", i); 84 root = debugfs_create_dir(name, component->debugfs_root); 85 86 debugfs_create_file("playback", 0444, dir, &rdai->playback, &rsnd_debugfs_fops); \ 87 debugfs_create_file("capture", 0444, dir, &rdai->capture , &rsnd_debugfs_fops); \ 88 } 89 90 return 0; 91 } 92 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org