tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2018.08.05a head: 4ad5aae97b17143dae19dcef5984c5e47417064a commit: 411ec41811aa1c759a8c717edf917f9f00ca731e [251/252] srcu: Make call_srcu() available during very early boot config: ia64-allnoconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 411ec41811aa1c759a8c717edf917f9f00ca731e # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=ia64 All errors (new ones prefixed by >>): In file included from kernel/rcu/update.c:58: >> kernel/rcu/rcu.h:440:20: error: two or more data types in declaration specifiers static inline void void srcu_init(void) { } ^~~~ vim +440 kernel/rcu/rcu.h 436 437 #ifdef CONFIG_SRCU 438 void srcu_init(void); 439 #else /* #ifdef CONFIG_SRCU */ > 440 static inline void void srcu_init(void) { } 441 #endif /* #else #ifdef CONFIG_SRCU */ 442 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation