tree: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git irq/irqchip-next head: a890caeb2ba40ca183969230e204ab144f258357 commit: 4e34614636b31747b190488240a95647c227021f [6/15] irqchip/sun6i-r: Use a stacked irqchip driver config: arm64-randconfig-s032-20210215 (attached as .config) compiler: aarch64-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: v0.6.3-215-g0fb77bb6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/com... git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git git fetch --no-tags arm-platforms irq/irqchip-next git checkout 4e34614636b31747b190488240a95647c227021f # 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__' ARCH=arm64 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 >>)" vim +215 drivers/irqchip/irq-sun6i-r.c 184 185 static int sun6i_r_intc_domain_alloc(struct irq_domain *domain, 186 unsigned int virq, 187 unsigned int nr_irqs, void *arg) 188 { 189 struct irq_fwspec *fwspec = arg; 190 struct irq_fwspec gic_fwspec; 191 unsigned long hwirq; 192 unsigned int type; 193 int i, ret; 194 195 ret = sun6i_r_intc_domain_translate(domain, fwspec, &hwirq, &type); 196 if (ret) 197 return ret; 198 if (hwirq + nr_irqs > SUN6I_NR_MUX_BITS) 199 return -EINVAL; 200 201 /* Construct a GIC-compatible fwspec from this fwspec. */ 202 gic_fwspec = (struct irq_fwspec) { 203 .fwnode = domain->parent->fwnode, 204 .param_count = 3, 205 .param = { GIC_SPI, hwirq, type }, 206 }; 207 208 ret = irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &gic_fwspec); 209 if (ret) 210 return ret; 211 212 for (i = 0; i < nr_irqs; ++i, ++hwirq, ++virq) { 213 if (hwirq == nmi_hwirq) { 214 irq_domain_set_hwirq_and_chip(domain, virq, hwirq, 216 irq_set_handler(virq, handle_fasteoi_ack_irq); 217 } else { 218 /* Only the NMI is currently supported. */ 219 return -EINVAL; 220 } 221 } 222 223 return 0; 224 } 225 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org