tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 58f28b2fcc73d05d6a5a9f70a8fdacefa99acb85 commit: 13dd0fa9c0ba8880c196a8feecd826f4c16b18f8 [21/141] x86/cpu: make init_tdx() system wide info about TDX module config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220209/202202091001.FUPeNVtq-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/intel/tdx/commit/13dd0fa9c0ba8880c196a8feecd826f4c16b18f8 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout 13dd0fa9c0ba8880c196a8feecd826f4c16b18f8 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/cpu/ 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/x86/kernel/cpu/intel.c:30: 60 | static inline int init_tdx(struct tdsysinfo_struct *r) { return -ENODEV; } | ^~~~~~~~~~~~~~~~ vim +60 arch/x86/include/asm/tdx_host.h 53 54 void detect_tdx_keyids(struct cpuinfo_x86 *c); 55 int detect_tdx(void); 56 int init_tdx(struct tdsysinfo_struct *r); 57 #else 58 static inline void detect_tdx_keyids(struct cpuinfo_x86 *c) { } 59 static inline int detect_tdx(void) { return -ENODEV; } 61 #endif /* CONFIG_INTEL_TDX_HOST */ 62 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org