[gpio:gpiochip-no-driver-h 2/2] drivers/input/keyboard/adp5589-keys.c:391:23: warning: incompatible integer to pointer conversion initializing 'struct adp5589_kpad *' with an expression of type 'int'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git gpiochip-no-driver-h
head:   3357a6b5d4c178fcbe95eb72c4e653b3a5b41569
commit: 3357a6b5d4c178fcbe95eb72c4e653b3a5b41569 [2/2] See what explodes if we apply this patch
config: x86_64-randconfig-c001-20210816 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7776b19eed44906e9973bfb240b6279d6feaab41)
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/linusw/linux-gpio.git/commit/?id=3357a6b5d4c178fcbe95eb72c4e653b3a5b41569
        git remote add gpio https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
        git fetch --no-tags gpio gpiochip-no-driver-h
        git checkout 3357a6b5d4c178fcbe95eb72c4e653b3a5b41569
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

   In file included from drivers/input/keyboard/adp5589-keys.c:21:
   In file included from include/linux/gpio.h:62:
   include/asm-generic/gpio.h:58:9: error: implicit declaration of function 'gpiod_to_chip' [-Werror,-Wimplicit-function-declaration]
           return gpiod_to_chip(gpio_to_desc(gpio));
                  ^
   include/asm-generic/gpio.h:58:9: note: did you mean 'gpio_to_chip'?
   include/asm-generic/gpio.h:56:33: note: 'gpio_to_chip' declared here
   static inline struct gpio_chip *gpio_to_chip(unsigned gpio)
                                   ^
   include/asm-generic/gpio.h:58:9: warning: incompatible integer to pointer conversion returning 'int' from a function with result type 'struct gpio_chip *' [-Wint-conversion]
           return gpiod_to_chip(gpio_to_desc(gpio));
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/input/keyboard/adp5589-keys.c:243:19: error: field has incomplete type 'struct gpio_chip'
           struct gpio_chip gc;
                            ^
   include/asm-generic/gpio.h:56:22: note: forward declaration of 'struct gpio_chip'
   static inline struct gpio_chip *gpio_to_chip(unsigned gpio)
                        ^
   drivers/input/keyboard/adp5589-keys.c:391:30: error: implicit declaration of function 'gpiochip_get_data' [-Werror,-Wimplicit-function-declaration]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                       ^

quoted

drivers/input/keyboard/adp5589-keys.c:391:23: warning: incompatible integer to pointer conversion initializing 'struct adp5589_kpad *' with an expression of type 'int' [-Wint-conversion]

           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                ^      ~~~~~~~~~~~~~~~~~~~~~~~
   drivers/input/keyboard/adp5589-keys.c:403:30: error: implicit declaration of function 'gpiochip_get_data' [-Werror,-Wimplicit-function-declaration]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                       ^
   drivers/input/keyboard/adp5589-keys.c:403:23: warning: incompatible integer to pointer conversion initializing 'struct adp5589_kpad *' with an expression of type 'int' [-Wint-conversion]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                ^      ~~~~~~~~~~~~~~~~~~~~~~~
   drivers/input/keyboard/adp5589-keys.c:422:30: error: implicit declaration of function 'gpiochip_get_data' [-Werror,-Wimplicit-function-declaration]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                       ^
   drivers/input/keyboard/adp5589-keys.c:422:23: warning: incompatible integer to pointer conversion initializing 'struct adp5589_kpad *' with an expression of type 'int' [-Wint-conversion]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                ^      ~~~~~~~~~~~~~~~~~~~~~~~
   drivers/input/keyboard/adp5589-keys.c:442:30: error: implicit declaration of function 'gpiochip_get_data' [-Werror,-Wimplicit-function-declaration]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                       ^
   drivers/input/keyboard/adp5589-keys.c:442:23: warning: incompatible integer to pointer conversion initializing 'struct adp5589_kpad *' with an expression of type 'int' [-Wint-conversion]
           struct adp5589_kpad *kpad = gpiochip_get_data(chip);
                                ^      ~~~~~~~~~~~~~~~~~~~~~~~
   drivers/input/keyboard/adp5589-keys.c:528:10: error: implicit declaration of function 'devm_gpiochip_add_data' [-Werror,-Wimplicit-function-declaration]
           error = devm_gpiochip_add_data(dev, &kpad->gc, kpad);
                   ^
   5 warnings and 7 errors generated.


vim +391 drivers/input/keyboard/adp5589-keys.c

9d2e173644bb5c Michael Hennerich 2011-05-19  387  
9d2e173644bb5c Michael Hennerich 2011-05-19  388  #ifdef CONFIG_GPIOLIB
9d2e173644bb5c Michael Hennerich 2011-05-19  389  static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
9d2e173644bb5c Michael Hennerich 2011-05-19  390  {
839850f4fb76b5 Linus Walleij     2015-12-08 @391  	struct adp5589_kpad *kpad = gpiochip_get_data(chip);
3f48e735435851 Michael Hennerich 2011-10-18  392  	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
3f48e735435851 Michael Hennerich 2011-10-18  393  	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
9d2e173644bb5c Michael Hennerich 2011-05-19  394  
3f48e735435851 Michael Hennerich 2011-10-18  395  	return !!(adp5589_read(kpad->client,
3f48e735435851 Michael Hennerich 2011-10-18  396  			       kpad->var->reg(ADP5589_GPI_STATUS_A) + bank) &
9d2e173644bb5c Michael Hennerich 2011-05-19  397  			       bit);
9d2e173644bb5c Michael Hennerich 2011-05-19  398  }
9d2e173644bb5c Michael Hennerich 2011-05-19  399  

:::::: The code at line 391 was first introduced by commit
:::::: 839850f4fb76b56fcad3cabe27fc9f1a03821a2c input: adp5589-keys: use gpiochip data pointer

:::::: TO: Linus Walleij [off-list ref]
:::::: CC: Linus Walleij [off-list ref]

---
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