Hi Claire, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on powerpc/next] [also build test ERROR on linus/master v5.11-rc3 next-20210115] [cannot apply to swiotlb/linux-next robh/for-next xen-tip/linux-next iommu/next] [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/Claire-Chang/Restricted-DMA/2021... base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: x86_64-rhel (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/9c54685703ccb9e53d6a2558cac472b05... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Claire-Chang/Restricted-DMA/20210106-114544 git checkout 9c54685703ccb9e53d6a2558cac472b053fb5470 # save the attached .config to linux build tree make W=1 ARCH=x86_64 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 >>): drivers/tty/serial/earlycon.c: In function 'of_setup_earlycon': 258 | addr = of_flat_dt_translate_address(node); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for OF_EARLY_FLATTREE Depends on OF Selected by - SWIOTLB vim +/of_flat_dt_translate_address +258 drivers/tty/serial/earlycon.c 8477614d9f7c5ce0 Peter Hurley 2016-01-16 245 c90fe9c0394b068c Peter Hurley 2016-01-16 246 int __init of_setup_earlycon(const struct earlycon_id *match, 088da2a17619cf01 Peter Hurley 2016-01-16 247 unsigned long node, 4d118c9a86659085 Peter Hurley 2016-01-16 248 const char *options) b0b6abd34c1b508d Rob Herring 2014-03-27 249 { b0b6abd34c1b508d Rob Herring 2014-03-27 250 int err; b0b6abd34c1b508d Rob Herring 2014-03-27 251 struct uart_port *port = &early_console_dev.port; 088da2a17619cf01 Peter Hurley 2016-01-16 252 const __be32 *val; 088da2a17619cf01 Peter Hurley 2016-01-16 253 bool big_endian; c90fe9c0394b068c Peter Hurley 2016-01-16 254 u64 addr; b0b6abd34c1b508d Rob Herring 2014-03-27 255 e1dd3bef6d03c908 Geert Uytterhoeven 2015-11-27 256 spin_lock_init(&port->lock); b0b6abd34c1b508d Rob Herring 2014-03-27 257 port->iotype = UPIO_MEM; c90fe9c0394b068c Peter Hurley 2016-01-16 @258 addr = of_flat_dt_translate_address(node); c90fe9c0394b068c Peter Hurley 2016-01-16 259 if (addr == OF_BAD_ADDR) { c90fe9c0394b068c Peter Hurley 2016-01-16 260 pr_warn("[%s] bad address\n", match->name); c90fe9c0394b068c Peter Hurley 2016-01-16 261 return -ENXIO; c90fe9c0394b068c Peter Hurley 2016-01-16 262 } b0b6abd34c1b508d Rob Herring 2014-03-27 263 port->mapbase = addr; b0b6abd34c1b508d Rob Herring 2014-03-27 264 088da2a17619cf01 Peter Hurley 2016-01-16 265 val = of_get_flat_dt_prop(node, "reg-offset", NULL); 088da2a17619cf01 Peter Hurley 2016-01-16 266 if (val) 088da2a17619cf01 Peter Hurley 2016-01-16 267 port->mapbase += be32_to_cpu(*val); 1f66dd36bb184373 Greentime Hu 2018-02-13 268 port->membase = earlycon_map(port->mapbase, SZ_4K); 1f66dd36bb184373 Greentime Hu 2018-02-13 269 088da2a17619cf01 Peter Hurley 2016-01-16 270 val = of_get_flat_dt_prop(node, "reg-shift", NULL); 088da2a17619cf01 Peter Hurley 2016-01-16 271 if (val) 088da2a17619cf01 Peter Hurley 2016-01-16 272 port->regshift = be32_to_cpu(*val); 088da2a17619cf01 Peter Hurley 2016-01-16 273 big_endian = of_get_flat_dt_prop(node, "big-endian", NULL) != NULL || 088da2a17619cf01 Peter Hurley 2016-01-16 274 (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) && 088da2a17619cf01 Peter Hurley 2016-01-16 275 of_get_flat_dt_prop(node, "native-endian", NULL) != NULL); 088da2a17619cf01 Peter Hurley 2016-01-16 276 val = of_get_flat_dt_prop(node, "reg-io-width", NULL); 088da2a17619cf01 Peter Hurley 2016-01-16 277 if (val) { 088da2a17619cf01 Peter Hurley 2016-01-16 278 switch (be32_to_cpu(*val)) { 088da2a17619cf01 Peter Hurley 2016-01-16 279 case 1: 088da2a17619cf01 Peter Hurley 2016-01-16 280 port->iotype = UPIO_MEM; 088da2a17619cf01 Peter Hurley 2016-01-16 281 break; 088da2a17619cf01 Peter Hurley 2016-01-16 282 case 2: 088da2a17619cf01 Peter Hurley 2016-01-16 283 port->iotype = UPIO_MEM16; 088da2a17619cf01 Peter Hurley 2016-01-16 284 break; 088da2a17619cf01 Peter Hurley 2016-01-16 285 case 4: 088da2a17619cf01 Peter Hurley 2016-01-16 286 port->iotype = (big_endian) ? UPIO_MEM32BE : UPIO_MEM32; 088da2a17619cf01 Peter Hurley 2016-01-16 287 break; 088da2a17619cf01 Peter Hurley 2016-01-16 288 default: 088da2a17619cf01 Peter Hurley 2016-01-16 289 pr_warn("[%s] unsupported reg-io-width\n", match->name); 088da2a17619cf01 Peter Hurley 2016-01-16 290 return -EINVAL; 088da2a17619cf01 Peter Hurley 2016-01-16 291 } 088da2a17619cf01 Peter Hurley 2016-01-16 292 } 088da2a17619cf01 Peter Hurley 2016-01-16 293 31cb9a8575ca04f4 Eugeniy Paltsev 2017-08-21 294 val = of_get_flat_dt_prop(node, "current-speed", NULL); 31cb9a8575ca04f4 Eugeniy Paltsev 2017-08-21 295 if (val) 31cb9a8575ca04f4 Eugeniy Paltsev 2017-08-21 296 early_console_dev.baud = be32_to_cpu(*val); 31cb9a8575ca04f4 Eugeniy Paltsev 2017-08-21 297 814453adea7d081a Michal Simek 2018-04-10 298 val = of_get_flat_dt_prop(node, "clock-frequency", NULL); 814453adea7d081a Michal Simek 2018-04-10 299 if (val) 814453adea7d081a Michal Simek 2018-04-10 300 port->uartclk = be32_to_cpu(*val); 814453adea7d081a Michal Simek 2018-04-10 301 4d118c9a86659085 Peter Hurley 2016-01-16 302 if (options) { 31cb9a8575ca04f4 Eugeniy Paltsev 2017-08-21 303 early_console_dev.baud = simple_strtoul(options, NULL, 0); 4d118c9a86659085 Peter Hurley 2016-01-16 304 strlcpy(early_console_dev.options, options, 4d118c9a86659085 Peter Hurley 2016-01-16 305 sizeof(early_console_dev.options)); 4d118c9a86659085 Peter Hurley 2016-01-16 306 } 05d961320ba624c9 Peter Hurley 2016-01-16 307 earlycon_init(&early_console_dev, match->name); 4d118c9a86659085 Peter Hurley 2016-01-16 308 err = match->setup(&early_console_dev, options); f28295cc8ce14b7a Hsin-Yi Wang 2020-09-15 309 earlycon_print_info(&early_console_dev); b0b6abd34c1b508d Rob Herring 2014-03-27 310 if (err < 0) b0b6abd34c1b508d Rob Herring 2014-03-27 311 return err; b0b6abd34c1b508d Rob Herring 2014-03-27 312 if (!early_console_dev.con->write) b0b6abd34c1b508d Rob Herring 2014-03-27 313 return -ENODEV; b0b6abd34c1b508d Rob Herring 2014-03-27 314 b0b6abd34c1b508d Rob Herring 2014-03-27 315 b0b6abd34c1b508d Rob Herring 2014-03-27 316 register_console(early_console_dev.con); b0b6abd34c1b508d Rob Herring 2014-03-27 317 return 0; b0b6abd34c1b508d Rob Herring 2014-03-27 318 } 8477614d9f7c5ce0 Peter Hurley 2016-01-16 319 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org