tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next head: cbd3d5ba46b68c033986a6087209930f001cbcca commit: 7153d4bf0b373428d0393c001019da4d0483fddb [231/236] powerpc/traps: Enhance readability for trap types config: powerpc-randconfig-r016-20210419 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 2b50f5a4343f8fb06acaa5c36355bcf58092c9cd) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=7153d4bf0b373428d0393c001019da4d0483fddb git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git git fetch --no-tags powerpc next git checkout 7153d4bf0b373428d0393c001019da4d0483fddb # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
Note: the powerpc/next HEAD cbd3d5ba46b68c033986a6087209930f001cbcca builds
fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
>> arch/powerpc/kernel/fadump.c:731:28: error: use of undeclared identifier
>> 'INTERRUPT_SYSTEM_RESET'
if (TRAP(&(fdh->regs)) == INTERRUPT_SYSTEM_RESET) {
^
arch/powerpc/kernel/fadump.c:1703:22: error: no previous prototype for
function 'arch_reserved_kernel_pages' [-Werror,-Wmissing-prototypes]
unsigned long __init arch_reserved_kernel_pages(void)
^
arch/powerpc/kernel/fadump.c:1703:1: note: declare 'static' if the function
is not intended to be used outside of this translation unit
unsigned long __init arch_reserved_kernel_pages(void)
^
static
2 errors generated.
vim +/INTERRUPT_SYSTEM_RESET +731 arch/powerpc/kernel/fadump.c
679
680 void crash_fadump(struct pt_regs *regs, const char *str)
681 {
682 unsigned int msecs;
683 struct fadump_crash_info_header *fdh = NULL;
684 int old_cpu, this_cpu;
685 /* Do not include first CPU */
686 unsigned int ncpus = num_online_cpus() - 1;
687
688 if (!should_fadump_crash())
689 return;
690
691 /*
692 * old_cpu == -1 means this is the first CPU which has come
here,
693 * go ahead and trigger fadump.
694 *
695 * old_cpu != -1 means some other CPU has already on it's way
696 * to trigger fadump, just keep looping here.
697 */
698 this_cpu = smp_processor_id();
699 old_cpu = cmpxchg(&crashing_cpu, -1, this_cpu);
700
701 if (old_cpu != -1) {
702 atomic_inc(&cpus_in_fadump);
703
704 /*
705 * We can't loop here indefinitely. Wait as long as
fadump
706 * is in force. If we race with fadump un-registration
this
707 * loop will break and then we go down to normal panic
path
708 * and reboot. If fadump is in force the first crashing
709 * cpu will definitely trigger fadump.
710 */
711 while (fw_dump.dump_registered)
712 cpu_relax();
713 return;
714 }
715
716 fdh = __va(fw_dump.fadumphdr_addr);
717 fdh->crashing_cpu = crashing_cpu;
718 crash_save_vmcoreinfo();
719
720 if (regs)
721 fdh->regs = *regs;
722 else
723 ppc_save_regs(&fdh->regs);
724
725 fdh->online_mask = *cpu_online_mask;
726
727 /*
728 * If we came in via system reset, wait a while for the
secondary
729 * CPUs to enter.
730 */
> 731 if (TRAP(&(fdh->regs)) == INTERRUPT_SYSTEM_RESET) {
732 msecs = CRASH_TIMEOUT;
733 while ((atomic_read(&cpus_in_fadump) < ncpus) &&
(--msecs > 0))
734 mdelay(1);
735 }
736
737 fw_dump.ops->fadump_trigger(fdh, str);
738 }
739
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
