Hi Christophe, I love your patch! Yet something to improve: [auto build test ERROR on powerpc/next] [also build test ERROR on next-20201209] [cannot apply to robh/for-next linus/master mpe/next v5.10-rc7] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-40x-Rem... base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc64-randconfig-m031-20201210 (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.3.0 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://github.com/0day-ci/linux/commit/27cc6cb808696f690aaad907221758097... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christophe-Leroy/powerpc-40x-Remove-40x-platforms/20201209-211628 git checkout 27cc6cb808696f690aaad90722175809739de5bc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 275 | void __init uic_init_tree(void) | ^~~~~~~~~~~~~ 320 | unsigned int uic_get_irq(void) | ^~~~~~~~~~~ cc1: all warnings being treated as errors -- 193 | void ppc4xx_reset_system(char *cmd) | ^~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- 109 | void ppc4xx_teardown_msi_irqs(struct pci_dev *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/uic_init_tree +275 arch/powerpc/platforms/44x/uic.c e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 274 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 @275 void __init uic_init_tree(void) e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 276 { e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 277 struct device_node *np; e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 278 struct uic *uic; e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 279 const u32 *interrupts; e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 280 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 281 /* First locate and initialize the top-level UIC */ 26cb7d8bbddc83 arch/powerpc/sysdev/uic.c Cyrill Gorcunov 2007-11-30 282 for_each_compatible_node(np, NULL, "ibm,uic") { 12d371a69e6df9 arch/powerpc/sysdev/uic.c Stephen Rothwell 2007-04-29 283 interrupts = of_get_property(np, "interrupts", NULL); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 284 if (!interrupts) e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 285 break; e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 286 } e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 287 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 288 BUG_ON(!np); /* uic_init_tree() assumes there's a UIC as the e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 289 * top-level interrupt controller */ e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 290 primary_uic = uic_init_one(np); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 291 if (!primary_uic) b7c670d673d118 arch/powerpc/platforms/4xx/uic.c Rob Herring 2017-08-21 292 panic("Unable to initialize primary UIC %pOF\n", np); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 293 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 294 irq_set_default_host(primary_uic->irqhost); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 295 of_node_put(np); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 296 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 297 /* The scan again for cascaded UICs */ 26cb7d8bbddc83 arch/powerpc/sysdev/uic.c Cyrill Gorcunov 2007-11-30 298 for_each_compatible_node(np, NULL, "ibm,uic") { 12d371a69e6df9 arch/powerpc/sysdev/uic.c Stephen Rothwell 2007-04-29 299 interrupts = of_get_property(np, "interrupts", NULL); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 300 if (interrupts) { e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 301 /* Secondary UIC */ e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 302 int cascade_virq; e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 303 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 304 uic = uic_init_one(np); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 305 if (! uic) b7c670d673d118 arch/powerpc/platforms/4xx/uic.c Rob Herring 2017-08-21 306 panic("Unable to initialize a secondary UIC %pOF\n", b7c670d673d118 arch/powerpc/platforms/4xx/uic.c Rob Herring 2017-08-21 307 np); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 308 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 309 cascade_virq = irq_of_parse_and_map(np, 0); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 310 ec775d0e70eb6b arch/powerpc/sysdev/uic.c Thomas Gleixner 2011-03-25 311 irq_set_handler_data(cascade_virq, uic); ec775d0e70eb6b arch/powerpc/sysdev/uic.c Thomas Gleixner 2011-03-25 312 irq_set_chained_handler(cascade_virq, uic_irq_cascade); e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 313 e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 314 /* FIXME: setup critical cascade?? */ e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 315 } e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 316 } e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 317 } e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 318 ef24ba7091517d arch/powerpc/sysdev/uic.c Michael Ellerman 2016-09-06 319 /* Return an interrupt vector or 0 if no interrupt is pending. */ e58923ed14370e arch/powerpc/sysdev/uic.c David Gibson 2007-04-18 @320 unsigned int uic_get_irq(void) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org