Hi "Fabio, Thank you for the patch! Yet something to improve: [auto build test ERROR on staging/staging-testing] url: https://github.com/0day-ci/linux/commits/Fabio-M-De-Francesco/staging-gre... base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git 0bd35146642bdc56f1b87d75f047b1c92bd2bd39 config: riscv-randconfig-r042-20210814 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1f7b25ea76a925aca690da28de9d78db7ca99d0c) 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/0day-ci/linux/commit/901c5fde0540c767590bce64621988973... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Fabio-M-De-Francesco/staging-greybus-Convert-uart-c-from-IDR-to-XArray/20210814-225807 git checkout 901c5fde0540c767590bce646219889730c4a41b # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=riscv SHELL=/bin/bash drivers/staging/greybus/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): xa_lock(&table_lock); ^~~~~~~~~~~~~~~~~~~~ include/linux/xarray.h:530:39: note: expanded from macro 'xa_lock' #define xa_lock(xa) spin_lock(&(xa)->xa_lock) ~~~~ ^ drivers/staging/greybus/uart.c:358:2: error: no member named 'xa_lock' in 'struct mutex' xa_unlock(&table_lock); ^~~~~~~~~~~~~~~~~~~~~~ include/linux/xarray.h:531:43: note: expanded from macro 'xa_unlock' #define xa_unlock(xa) spin_unlock(&(xa)->xa_lock) ~~~~ ^ 2 errors generated. vim +346 drivers/staging/greybus/uart.c 341 342 static struct gb_tty *get_gb_by_minor(unsigned int minor) 343 { 344 struct gb_tty *gb_tty; 345 347 gb_tty = xa_load(&tty_minors, minor); 348 if (gb_tty) { 349 mutex_lock(&gb_tty->mutex); 350 if (gb_tty->disconnected) { 351 mutex_unlock(&gb_tty->mutex); 352 gb_tty = NULL; 353 } else { 354 tty_port_get(&gb_tty->port); 355 mutex_unlock(&gb_tty->mutex); 356 } 357 } 358 xa_unlock(&table_lock); 359 return gb_tty; 360 } 361 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org