Hi "Rafał, I love your patch! Perhaps something to improve: [auto build test WARNING on linusw-pinctrl/devel] [also build test WARNING on robh/for-next linus/master v5.16-rc5 next-20211215] [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/Rafa-Mi-ecki/dt-bindings-pinctrl... base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20211216/202112161405.FBvHqiWr-lk...) compiler: riscv64-linux-gcc (GCC) 11.2.0 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/52ad0e1851a5d242cde2829eca853a736... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Rafa-Mi-ecki/dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl/20211216-044855 git checkout 52ad0e1851a5d242cde2829eca853a7369807c42 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash drivers/pinctrl/bcm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/pinctrl/bcm/pinctrl-bcm4908.c: In function 'bcm4908_pinctrl_probe': 542 | function->groups, | ~~~~~~~~^~~~~~~~ In file included from drivers/pinctrl/bcm/pinctrl-bcm4908.c:18: drivers/pinctrl/bcm/../pinmux.h:153:46: note: expected 'const char **' but argument is of type 'const char * const*' 153 | const char **groups, | ~~~~~~~~~~~~~^~~~~~ vim +542 drivers/pinctrl/bcm/pinctrl-bcm4908.c 468 469 static int bcm4908_pinctrl_probe(struct platform_device *pdev) 470 { 471 struct device *dev = &pdev->dev; 472 struct bcm4908_pinctrl *bcm4908_pinctrl; 473 struct pinctrl_desc *pctldesc; 474 struct pinctrl_pin_desc *pins; 475 int i; 476 477 bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL); 478 if (!bcm4908_pinctrl) 479 return -ENOMEM; 480 pctldesc = &bcm4908_pinctrl->pctldesc; 481 platform_set_drvdata(pdev, bcm4908_pinctrl); 482 483 /* Set basic properties */ 484 485 bcm4908_pinctrl->dev = dev; 486 487 bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0); 488 if (IS_ERR(bcm4908_pinctrl->base)) { 489 dev_err(dev, "Failed to map pinctrl regs\n"); 490 return PTR_ERR(bcm4908_pinctrl->base); 491 } 492 493 memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc)); 494 495 /* Set pinctrl properties */ 496 497 pins = devm_kcalloc(dev, BCM4908_NUM_PINS, 498 sizeof(struct pinctrl_pin_desc), GFP_KERNEL); 499 if (!pins) 500 return -ENOMEM; 501 for (i = 0; i < BCM4908_NUM_PINS; i++) { 502 pins[i].number = i; 503 pins[i].name = devm_kasprintf(dev, GFP_KERNEL, "pin%d", i); 504 if (!pins[i].name) 505 return -ENOMEM; 506 } 507 pctldesc->pins = pins; 508 pctldesc->npins = BCM4908_NUM_PINS; 509 510 /* Register */ 511 512 bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl); 513 if (IS_ERR(bcm4908_pinctrl->pctldev)) { 514 dev_err(dev, "Failed to register pinctrl\n"); 515 return PTR_ERR(bcm4908_pinctrl->pctldev); 516 } 517 518 /* Groups */ 519 520 for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) { 521 const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i]; 522 int *pins; 523 int j; 524 525 pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL); 526 if (!pins) 527 return -ENOMEM; 528 for (j = 0; j < group->num_pins; j++) 529 pins[j] = group->pins[j].number; 530 531 pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name, 532 pins, group->num_pins, (void *)group); 533 } 534 535 /* Functions */ 536 537 for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) { 538 const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i]; 539 540 pinmux_generic_add_function(bcm4908_pinctrl->pctldev, 541 function->name, 543 function->num_groups, NULL); 544 } 545 546 return 0; 547 } 548 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org