On Wed, Jul 1, 2020 at 12:25 PM kernel test robot <lkp@xxxxxxxxx> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master > head: 6b207d66aa9fad0deed13d5f824e1ea193b0a777 > commit: fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 [9995/9999] bpf: Introduce helper bpf_get_task_stack() > config: alpha-allyesconfig (attached as .config) > compiler: alpha-linux-gcc (GCC) 9.3.0 > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > kernel/bpf/stackmap.c: In function 'get_callchain_entry_for_task': > >> kernel/bpf/stackmap.c:363:3: error: implicit declaration of function 'stack_trace_save_tsk' [-Werror=implicit-function-declaration] > 363 | stack_trace_save_tsk(task, (unsigned long *)(entry->ip + init_nr), > | ^~~~~~~~~~~~~~~~~~~~ Song, you're on it, right?
