tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8417c8f5007bf4567ccffda850a3157c7d905f67 commit: 21d9526d13b5467b0a6532e5a8b0eb04c01ce326 [931/9377] gpiolib: Make the legacy <linux/gpio.h> consumer-only config: mips-randconfig-r004-20230403 (https://download.01.org/0day-ci/archive/20230405/202304051646.5QtRQQau-lkp@xxxxxxxxx/config) compiler: mipsel-linux-gcc (GCC) 12.1.0 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=21d9526d13b5467b0a6532e5a8b0eb04c01ce326 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 21d9526d13b5467b0a6532e5a8b0eb04c01ce326 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/ar7/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304051646.5QtRQQau-lkp@xxxxxxxxx/ Note: the linux-next/master HEAD 8417c8f5007bf4567ccffda850a3157c7d905f67 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): >> arch/mips/ar7/gpio.c:19:33: error: field 'chip' has incomplete type 19 | struct gpio_chip chip; | ^~~~ arch/mips/ar7/gpio.c: In function 'ar7_gpio_get_value': >> arch/mips/ar7/gpio.c:24:38: error: implicit declaration of function 'gpiochip_get_data' [-Werror=implicit-function-declaration] 24 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c:24:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] arch/mips/ar7/gpio.c: In function 'titan_gpio_get_value': arch/mips/ar7/gpio.c:32:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 32 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'ar7_gpio_set_value': arch/mips/ar7/gpio.c:42:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 42 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'titan_gpio_set_value': arch/mips/ar7/gpio.c:55:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 55 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'ar7_gpio_direction_input': arch/mips/ar7/gpio.c:68:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 68 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'titan_gpio_direction_input': arch/mips/ar7/gpio.c:78:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 78 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'ar7_gpio_direction_output': arch/mips/ar7/gpio.c:93:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 93 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'titan_gpio_direction_output': arch/mips/ar7/gpio.c:105:38: warning: initialization of 'struct ar7_gpio_chip *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 105 | struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); | ^~~~~~~~~~~~~~~~~ arch/mips/ar7/gpio.c: In function 'ar7_gpio_init': >> arch/mips/ar7/gpio.c:318:15: error: implicit declaration of function 'gpiochip_add_data' [-Werror=implicit-function-declaration] 318 | ret = gpiochip_add_data(&gpch->chip, gpch); | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/chip +19 arch/mips/ar7/gpio.c 7ca5dc145bc7dad Florian Fainelli 2009-06-24 16 5f3c909881d5dee Florian Fainelli 2010-01-03 17 struct ar7_gpio_chip { 5f3c909881d5dee Florian Fainelli 2010-01-03 18 void __iomem *regs; 5f3c909881d5dee Florian Fainelli 2010-01-03 @19 struct gpio_chip chip; 5f3c909881d5dee Florian Fainelli 2010-01-03 20 }; 7ca5dc145bc7dad Florian Fainelli 2009-06-24 21 5f3c909881d5dee Florian Fainelli 2010-01-03 22 static int ar7_gpio_get_value(struct gpio_chip *chip, unsigned gpio) 7ca5dc145bc7dad Florian Fainelli 2009-06-24 23 { 1b2766fb496c462 Linus Walleij 2015-12-08 @24 struct ar7_gpio_chip *gpch = gpiochip_get_data(chip); 5f3c909881d5dee Florian Fainelli 2010-01-03 25 void __iomem *gpio_in = gpch->regs + AR7_GPIO_INPUT; 7ca5dc145bc7dad Florian Fainelli 2009-06-24 26 249e573d99ab590 Linus Walleij 2015-12-22 27 return !!(readl(gpio_in) & (1 << gpio)); 5f3c909881d5dee Florian Fainelli 2010-01-03 28 } 5f3c909881d5dee Florian Fainelli 2010-01-03 29 :::::: The code at line 19 was first introduced by commit :::::: 5f3c909881d5deebb9a3ddc836a15937e76daefc MIPS: AR7: Implement gpiolib :::::: TO: Florian Fainelli <florian@xxxxxxxxxxx> :::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests