tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/jump_label head: bc3894f26c7917aca4f820baa8b3273696466b7d commit: aa95c60d8b4c3e1b71eecda2f14a2491232997c4 [23/39] static_call: Add inline static call infrastructure config: x86_64-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: git checkout aa95c60d8b4c3e1b71eecda2f14a2491232997c4 # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from <command-line>:0:0: s32 addr; ^~~ include/linux/static_call_types.h:21:2: error: unknown type name 's32' s32 key; ^~~ vim +/s32 +20 include/linux/static_call_types.h 14 15 /* 16 * The static call site table needs to be created by external tooling (objtool 17 * or a compiler plugin). 18 */ 19 struct static_call_site { 21 s32 key; 22 }; 23 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation