tree: https://github.com/oracle/dtrace-linux-kernel v1/5.9 head: c731ef8ca2d64eacba761c43f05a59bc6054ad6a commit: 3f8362ef4278ebed1ebd530f0cc4d15c0db6fe22 [4/22] dtrace: core and x86 config: x86_64-randconfig-s022-20201012 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-rc1-dirty # https://github.com/oracle/dtrace-linux-kernel/commit/3f8362ef4278ebed1ebd... git remote add oracle-dtrace-linux-kernel https://github.com/oracle/dtrace-linux-kernel git fetch --no-tags oracle-dtrace-linux-kernel v1/5.9 git checkout 3f8362ef4278ebed1ebd530f0cc4d15c0db6fe22 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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 errors (new ones prefixed by >>): WARNING: unmet direct dependencies detected for CTF Depends on DEBUG_INFO && !DEBUG_INFO_REDUCED && !DEBUG_INFO_SPLIT && !DEBUG_INFO_DWARF4 && DTRACE Selected by - DTRACE && ARCH_SUPPORTS_DTRACE 33 | #include <sys/ctf_api.h> | ^~~~~~~~~~~~~~~ compilation terminated. Makefile arch include kernel scripts source tools usr [scripts/Makefile.host:112: scripts/dwarf2ctf/dwarf2ctf.o] Error 1 Target '__build' not remade because of errors. Makefile arch include kernel scripts source tools usr [scripts/Makefile.build:500: scripts/dwarf2ctf] Error 2 Target '__build' not remade because of errors. Makefile arch include kernel scripts source tools usr [Makefile:1183: scripts] Error 2 Target 'prepare' not remade because of errors. make: Makefile arch include kernel scripts source tools usr [Makefile:185: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +33 scripts/dwarf2ctf/dwarf2ctf.c c9c0769a51b6cb Nick Alcock 2018-11-14 27 c9c0769a51b6cb Nick Alcock 2018-11-14 28 #include <libelf.h> c9c0769a51b6cb Nick Alcock 2018-11-14 29 #include <dwarf.h> c9c0769a51b6cb Nick Alcock 2018-11-14 30 #include <elfutils/libdwfl.h> c9c0769a51b6cb Nick Alcock 2018-11-14 31 #include <elfutils/libdw.h> c9c0769a51b6cb Nick Alcock 2018-11-14 32 #include <elfutils/version.h> c9c0769a51b6cb Nick Alcock 2018-11-14 @33 #include <sys/ctf_api.h> c9c0769a51b6cb Nick Alcock 2018-11-14 34 #include <glib.h> c9c0769a51b6cb Nick Alcock 2018-11-14 35 :::::: The code at line 33 was first introduced by commit :::::: c9c0769a51b6cbd4236ae61e50f7c42543b96b18 ctf: generate CTF information for the kernel :::::: TO: Nick Alcock <nick.alcock(a)oracle.com&gt; :::::: CC: Nick Alcock <nick.alcock(a)oracle.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org