tree: https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/kretprobe-stackfix head: 6e2b8966c87adc1be0fb4a386fb24ae438f4cb79 commit: bf8953ce458279534e3e2bdfdab6eaf2dd224bf9 [7/10] ia64: Add instruction_pointer_set() API config: ia64-randconfig-s031-20210316 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-277-gc089cd2d-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git/commit... git remote add mhiramat https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git git fetch --no-tags mhiramat kprobes/kretprobe-stackfix git checkout bf8953ce458279534e3e2bdfdab6eaf2dd224bf9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=ia64 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 >>): In file included from arch/ia64/include/asm/processor.h:20, from arch/ia64/include/asm/thread_info.h:12, from include/linux/thread_info.h:58, from include/asm-generic/preempt.h:5, from ./arch/ia64/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/rcupdate.h:27, from include/linux/rculist.h:11, from include/linux/sched/signal.h:5, from arch/ia64/kernel/asm-offsets.c:10: arch/ia64/include/asm/ptrace.h: In function 'instruction_pointer_set': 76 | ia64_psr(regs)->ri = (val & 0xf); | ^~~~~~~~ | ia64_pal 76 | ia64_psr(regs)->ri = (val & 0xf); | ^~ In file included from arch/ia64/include/asm/pgtable.h:154, from include/linux/pgtable.h:6, from arch/ia64/include/asm/uaccess.h:40, from include/linux/uaccess.h:11, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from arch/ia64/kernel/asm-offsets.c:10: arch/ia64/include/asm/mmu_context.h: In function 'reload_context': arch/ia64/include/asm/mmu_context.h:127:41: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable] 127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4; | ^~~~~~~ arch/ia64/kernel/asm-offsets.c: At top level: arch/ia64/kernel/asm-offsets.c:23:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 23 | void foo(void) | ^~~ cc1: some warnings being treated as errors make[2]: *** [scripts/Makefile.build:116: arch/ia64/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1235: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:215: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +76 arch/ia64/include/asm/ptrace.h 73 74 static inline void instruction_pointer_set(struct pt_regs *regs, unsigned long val) 75 { 77 regs->cr_iip = (val & ~0xfULL); 78 } 79 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org