tree: https://github.com/jimc/linux.git dd-drm-next head: 599fc12dacf513227ee5c9815a16a3aaa1300f27 commit: bccba5dbb682b2ea4691ac5bf88c0976bc806165 [15/19] more-emit-cleanups config: hexagon-randconfig-r041-20211015 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project a49f5386ce6b091da66ea7c3a1d9a588d53becf7) 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/jimc/linux/commit/bccba5dbb682b2ea4691ac5bf88c0976bc80... git remote add jimc https://github.com/jimc/linux.git git fetch --no-tags jimc dd-drm-next git checkout bccba5dbb682b2ea4691ac5bf88c0976bc806165 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash 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 >>): lib/dynamic_debug.c:441:3: error: expected expression WARN_ONCE("cannot enable T, CONFIG_TRACE=n\n"); ^ include/asm-generic/bug.h:150:29: note: expanded from macro 'WARN_ONCE' DO_ONCE_LITE_IF(condition, WARN, 1, format) ^ lib/dynamic_debug.c:743:3: error: implicit declaration of function 'trace_array_printk' [-Werror,-Wimplicit-function-declaration] trace_array_printk(trace_arr, _THIS_IP_, "%s%pV", buf, &vaf); ^ lib/dynamic_debug.c:743:3: note: did you mean 'trace_printk'? include/linux/kernel.h:467:5: note: 'trace_printk' declared here int trace_printk(const char *fmt, ...) ^ if (descriptor->flags & _DPRINTK_FLAGS_PRINT_TRACE) ^ lib/dynamic_debug.c:772:4: error: implicit declaration of function 'trace_array_printk' [-Werror,-Wimplicit-function-declaration] trace_array_printk(trace_arr, _THIS_IP_, "%s%pV", buf, &vaf); ^ 4 errors generated. vim +/_DPRINTK_FLAGS_PRINT_TRACE +771 lib/dynamic_debug.c 748 749 void __dynamic_dev_dbg(struct _ddebug *descriptor, 750 const struct device *dev, const char *fmt, ...) 751 { 752 struct va_format vaf; 753 va_list args; 754 char buf[PREFIX_SIZE] = ""; 755 756 BUG_ON(!descriptor); 757 BUG_ON(!fmt); 758 759 va_start(args, fmt); 760 761 vaf.fmt = fmt; 762 vaf.va = &args; 763 764 if (descriptor->flags & _DPRINTK_ENABLED) 765 dynamic_emit_prefix(descriptor, buf); 766 767 if (!dev) { 768 if (descriptor->flags & _DPRINTK_FLAGS_PRINT) 769 printk(KERN_DEBUG "(NULL device *): %pV", &vaf); 770 772 trace_array_printk(trace_arr, _THIS_IP_, "%s%pV", buf, &vaf); 773 } else { 774 dev_printk_emit(LOGLEVEL_DEBUG, dev, "%s%s %s: %pV", 775 buf, dev_driver_string(dev), dev_name(dev), &vaf); 776 } 777 778 va_end(args); 779 } 780 EXPORT_SYMBOL(__dynamic_dev_dbg); 781 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org