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Subject[mcgrof-next:20211123-sysctl-cleanups 41/41] kernel/kprobes.c:2605:9: error: implicit declaration of function 'kprobe_sysctls_init'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211123-sysctl-cleanups
head: c18add41d859b4feec081eab6cfd624a5642973d
commit: c18add41d859b4feec081eab6cfd624a5642973d [41/41] kprobe: move sysctl_kprobes_optimization to kprobes.c
config: arc-randconfig-r025-20211123 (https://download.01.org/0day-ci/archive/20211125/202111250249.S7EcX00x-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 11.2.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/commit/?id=c18add41d859b4feec081eab6cfd624a5642973d
git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git
git fetch --no-tags mcgrof-next 20211123-sysctl-cleanups
git checkout c18add41d859b4feec081eab6cfd624a5642973d
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

kernel/kprobes.c: In function 'init_kprobes':
>> kernel/kprobes.c:2605:9: error: implicit declaration of function 'kprobe_sysctls_init' [-Werror=implicit-function-declaration]
2605 | kprobe_sysctls_init();
| ^~~~~~~~~~~~~~~~~~~
In file included from include/linux/perf_event.h:25,
from kernel/kprobes.c:41:
At top level:
arch/arc/include/asm/perf_event.h:126:27: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=]
126 | static const unsigned int arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
| ^~~~~~~~~~~~~~~~~
arch/arc/include/asm/perf_event.h:91:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=]
91 | static const char * const arc_pmu_ev_hw_map[] = {
| ^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors


vim +/kprobe_sysctls_init +2605 kernel/kprobes.c

2597
2598 err = arch_init_kprobes();
2599 if (!err)
2600 err = register_die_notifier(&kprobe_exceptions_nb);
2601 if (!err)
2602 err = register_module_notifier(&kprobe_module_nb);
2603
2604 kprobes_initialized = (err == 0);
> 2605 kprobe_sysctls_init();
2606 return err;
2607 }
2608 early_initcall(init_kprobes);
2609

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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