tree: https://github.com/avpatel/linux.git riscv_aia_v1 head: 78a6d4e6a98f8f59e5a2c127ae5a5ee6d9f2ade6 commit: 3ac8b374f5e8bf751dc95d83089f0b9b58c1cbf5 [5/18] RISC-V: Treat IPIs as normal Linux IRQs config: riscv-randconfig-s032-20210622 (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://github.com/avpatel/linux/commit/3ac8b374f5e8bf751dc95d83089f0b9b5... git remote add avpatel https://github.com/avpatel/linux.git git fetch --no-tags avpatel riscv_aia_v1 git checkout 3ac8b374f5e8bf751dc95d83089f0b9b58c1cbf5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) arch/riscv/kernel/smp.c:170:50: sparse: expected void [noderef] __percpu *percpu_dev_id arch/riscv/kernel/smp.c:170:50: sparse: got int * vim +170 arch/riscv/kernel/smp.c 158 159 void riscv_ipi_setup(void) 160 { 161 int i, err; 162 163 /* SBI based IPIs is our last option */ 164 if (!ipi_virq_base) 165 sbi_ipi_init(); 166 167 /* Request IPIs */ 168 for (i = 0; i < nr_ipi; i++) { 169 err = request_percpu_irq(ipi_virq_base + i, handle_IPI, 171 WARN_ON(err); 172 173 ipi_desc[i] = irq_to_desc(ipi_virq_base + i); 174 irq_set_status_flags(ipi_virq_base + i, IRQ_HIDDEN); 175 } 176 177 /* Enabled IPIs for boot CPU immediately */ 178 riscv_ipi_enable(); 179 } 180 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org