tree: https://github.com/atishp04/linux dma_non_coherent_v1 head: 37cdb4f054939f097f3297ec76c1c6738312c577 commit: ad78ee06db98750082ab52e23e4608a3787a3db4 [8/42] gpio: starfive-jh7100: Add StarFive JH7100 GPIO driver config: m68k-allmodconfig (attached as .config) compiler: m68k-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/atishp04/linux/commit/ad78ee06db98750082ab52e23e4608a3... git remote add atishp04 https://github.com/atishp04/linux git fetch --no-tags atishp04 dma_non_coherent_v1 git checkout ad78ee06db98750082ab52e23e4608a3787a3db4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 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/gpio/gpio-starfive-jh7100.c:332:6: warning: no previous prototype for 'sf_vic_gpio_dout_reverse' [-Wmissing-prototypes] 332 | void sf_vic_gpio_dout_reverse(int gpio, int en) | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:351:6: warning: no previous prototype for 'sf_vic_gpio_dout_value' [-Wmissing-prototypes] 351 | void sf_vic_gpio_dout_value(int gpio, int v) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:369:6: warning: no previous prototype for 'sf_vic_gpio_dout_low' [-Wmissing-prototypes] 369 | void sf_vic_gpio_dout_low(int gpio) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:375:6: warning: no previous prototype for 'sf_vic_gpio_dout_high' [-Wmissing-prototypes] 375 | void sf_vic_gpio_dout_high(int gpio) | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:381:6: warning: no previous prototype for 'sf_vic_gpio_doen_reverse' [-Wmissing-prototypes] 381 | void sf_vic_gpio_doen_reverse(int gpio, int en) | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:400:6: warning: no previous prototype for 'sf_vic_gpio_doen_value' [-Wmissing-prototypes] 400 | void sf_vic_gpio_doen_value(int gpio, int v) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:419:6: warning: no previous prototype for 'sf_vic_gpio_doen_low' [-Wmissing-prototypes] 419 | void sf_vic_gpio_doen_low(int gpio) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:425:6: warning: no previous prototype for 'sf_vic_gpio_doen_high' [-Wmissing-prototypes] 425 | void sf_vic_gpio_doen_high(int gpio) | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:431:6: warning: no previous prototype for 'sf_vic_gpio_manual' [-Wmissing-prototypes] 431 | void sf_vic_gpio_manual(int offset, int v) | ^~~~~~~~~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c: In function 'starfive_gpio_probe': 504 | ret = devm_request_irq(dev, irq, starfive_irq_handler, IRQF_SHARED, | ^~~~~~~~~~~~~~~~ | can_request_irq 504 | ret = devm_request_irq(dev, irq, starfive_irq_handler, IRQF_SHARED, | ^~~~~~~~~~~ drivers/gpio/gpio-starfive-jh7100.c:504:57: note: each undeclared identifier is reported only once for each function it appears in cc1: some warnings being treated as errors vim +504 drivers/gpio/gpio-starfive-jh7100.c 446 447 static int starfive_gpio_probe(struct platform_device *pdev) 448 { 449 struct device *dev = &pdev->dev; 450 struct starfive_gpio *chip; 451 struct gpio_irq_chip *girq; 452 struct resource *res; 453 int irq, ret, ngpio; 454 455 chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL); 456 if (!chip) 457 return -ENOMEM; 458 459 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 460 chip->base = devm_ioremap_resource(dev, res); 461 if (IS_ERR(chip->base)) { 462 dev_err(dev, "failed to allocate device memory\n"); 463 return PTR_ERR(chip->base); 464 } 465 gpio_base = chip->base; 466 467 irq = platform_get_irq(pdev, 0); 468 if (irq < 0) { 469 dev_err(dev, "Cannot get IRQ resource\n"); 470 return irq; 471 } 472 473 raw_spin_lock_init(&chip->lock); 474 chip->gc.direction_input = starfive_direction_input; 475 chip->gc.direction_output = starfive_direction_output; 476 chip->gc.get_direction = starfive_get_direction; 477 chip->gc.get = starfive_get_value; 478 chip->gc.set = starfive_set_value; 479 chip->gc.base = 0; 480 chip->gc.ngpio = 64; 481 chip->gc.label = dev_name(dev); 482 chip->gc.parent = dev; 483 chip->gc.owner = THIS_MODULE; 484 485 girq = &chip->gc.irq; 486 girq->chip = &starfive_irqchip; 487 girq->parent_handler = NULL; 488 girq->num_parents = 0; 489 girq->parents = NULL; 490 girq->default_type = IRQ_TYPE_NONE; 491 girq->handler = handle_simple_irq; 492 493 ret = gpiochip_add_data(&chip->gc, chip); 494 if (ret) { 495 dev_err(dev, "gpiochip_add_data ret=%d!\n", ret); 496 return ret; 497 } 498 499 /* Disable all GPIO interrupts before enabling parent interrupts */ 500 iowrite32(0, chip->base + GPIO_IE_HIGH); 501 iowrite32(0, chip->base + GPIO_IE_LOW); 502 chip->enabled = 0; 503 505 dev_name(dev), chip); 506 if (ret) { 507 dev_err(dev, "IRQ handler registering failed (%d)\n", ret); 508 return ret; 509 } 510 511 writel_relaxed(1, chip->base + GPIO_EN); 512 513 dev_info(dev, "StarFive GPIO chip registered %d GPIOs\n", ngpio); 514 515 return 0; 516 } 517 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org