tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 3c7bbbad8e4b8331c0db8c827bcd03a54741d7fa commit: 8fbdf654b00fdf629be3b94c4f64182b9522774a [1743/1743] x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting config: x86_64-buildonly-randconfig-2004-20250802 (https://download.01.org/0day-ci/archive/20250805/202508051402.StwtRrWO-lkp@i...) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250805/202508051402.StwtRrWO-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202508051402.StwtRrWO-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

arch/x86/kernel/cpu/bugs.c:614:6: warning: no previous prototype for 'unpriv_ebpf_notify' [-Wmissing-prototypes] 614 | void unpriv_ebpf_notify(int new_state) | ^~~~~~~~~~~~~~~~~~ arch/x86/kernel/cpu/bugs.c:1797:9: warning: no previous prototype for 'cpu_show_srbds' [-Wmissing-prototypes] 1797 | ssize_t cpu_show_srbds(struct device *dev, struct device_attribute *attr, char *buf) | ^~~~~~~~~~~~~~

vim +/unpriv_ebpf_notify +614 arch/x86/kernel/cpu/bugs.c 612 613 #ifdef CONFIG_BPF_SYSCALL

614 void unpriv_ebpf_notify(int new_state) 615 { 616 if (spectre_v2_enabled == SPECTRE_V2_EIBRS && !new_state) 617 pr_err(SPECTRE_V2_EIBRS_EBPF_MSG); 618 } 619 #endif 620

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki