TO: "Greg Kroah-Hartman" <gregkh(a)linuxfoundation.org&gt; tree: https://github.com/intel/linux-intel-lts.git 4.19/android_r head: 24f0fbfa4ad1b601f92d91cfcb7f01ad4d0f6acc commit: d936a940f464e155065a90cc22549c70d50ecffd [14668/21549] UPSTREAM: dynamic_debug: allow to work if debugfs is disabled config: x86_64-randconfig-r031-20210114 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 6077d55381a6aa3e947ef7abdc36a7515c598c8a) 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 # https://github.com/intel/linux-intel-lts/commit/d936a940f464e155065a90cc2... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 4.19/android_r git checkout d936a940f464e155065a90cc22549c70d50ecffd # 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 >>): net/ceph/messenger.c:203:5: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat] ntohs(in4->sin_port)); ^~~~~~~~~~~~~~~~~~~~ include/linux/byteorder/generic.h:142:18: note: expanded from macro 'ntohs' #define ntohs(x) ___ntohs(x) ^~~~~~~~~~~ include/linux/byteorder/generic.h:137:21: note: expanded from macro '___ntohs' #define ___ntohs(x) __be16_to_cpu(x) ^~~~~~~~~~~~~~~~ include/uapi/linux/byteorder/little_endian.h:42:26: note: expanded from macro '__be16_to_cpu' #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/swab.h:104:2: note: expanded from macro '__swab16' (__builtin_constant_p((__u16)(x)) ? \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/ceph/messenger.c:208:5: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat] ntohs(in6->sin6_port)); ^~~~~~~~~~~~~~~~~~~~~ include/linux/byteorder/generic.h:142:18: note: expanded from macro 'ntohs' #define ntohs(x) ___ntohs(x) ^~~~~~~~~~~ include/linux/byteorder/generic.h:137:21: note: expanded from macro '___ntohs' #define ___ntohs(x) __be16_to_cpu(x) ^~~~~~~~~~~~~~~~ include/uapi/linux/byteorder/little_endian.h:42:26: note: expanded from macro '__be16_to_cpu' #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/swab.h:104:2: note: expanded from macro '__swab16' (__builtin_constant_p((__u16)(x)) ? \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SND_VMASTER Depends on SOUND && !UML && SND Selected by - GKI_HIDDEN_SND_CONFIGS --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org