Hi Jinqian, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: cd9eb9b4365b71652b2c2ac58293bea47c9f9302 commit: 4c1b2c9b61b21a0183f345eb7076db7ac054ae6c [3541/3541] KVM: arm64: check if IPIV is enabled in BIOS config: arm64-defconfig (https://download.01.org/0day-ci/archive/20251213/202512130954.LPEUb9Ak-lkp@i...) compiler: aarch64-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251213/202512130954.LPEUb9Ak-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/202512130954.LPEUb9Ak-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/irqchip/irq-gic-v3.c:1524:6: warning: no previous prototype for 'gic_dist_enable_ipiv' [-Wmissing-prototypes] 1524 | void gic_dist_enable_ipiv(void) | ^~~~~~~~~~~~~~~~~~~~

...

drivers/irqchip/irq-gic-v3.c:1541:6: warning: no previous prototype for 'gic_get_ipiv_status' [-Wmissing-prototypes] 1541 | bool gic_get_ipiv_status(void) | ^~~~~~~~~~~~~~~~~~~

vim +/gic_get_ipiv_status +1541 drivers/irqchip/irq-gic-v3.c 1540

1541 bool gic_get_ipiv_status(void) 1542 { 1543 u32 val; 1544 1545 val = readl_relaxed(gic_data.dist_base + GICD_MISC_CTRL); 1546 if (val & GICD_MISC_CTRL_CFG_IPIV_EN) 1547 return true; 1548 1549 return false; 1550 } 1551 EXPORT_SYMBOL(gic_get_ipiv_status); 1552 #endif /* CONFIG_ARM64_HISI_IPIV */ 1553

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