Re: [PATCH] gpio: mpc8xxx: Add shutdown function.

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Hi Hui,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on gpio/for-next]
[also build test ERROR on v5.7-rc2 next-20200420]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Hui-Song/gpio-mpc8xxx-Add-shutdown-function/20200410-000846
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
config: arm64-defconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> drivers/gpio/gpio-mpc8xxx.c:463:14: error: initialization of 'void (*)(struct platform_device *)' from incompatible pointer type 'int (*)(struct platform_device *)' [-Werror=incompatible-pointer-types]
     463 |  .shutdown = mpc8xxx_shutdown,
         |              ^~~~~~~~~~~~~~~~
   drivers/gpio/gpio-mpc8xxx.c:463:14: note: (near initialization for 'mpc8xxx_plat_driver.shutdown')
   cc1: some warnings being treated as errors

vim +463 drivers/gpio/gpio-mpc8xxx.c

   448	
   449	static int mpc8xxx_shutdown(struct platform_device *pdev)
   450	{
   451		struct mpc8xxx_gpio_chip *mpc8xxx_gc = platform_get_drvdata(pdev);
   452	
   453		if (mpc8xxx_gc->irq) {
   454			irq_set_chained_handler_and_data(mpc8xxx_gc->irqn, NULL, NULL);
   455			irq_domain_remove(mpc8xxx_gc->irq);
   456		}
   457	
   458		return 0;
   459	}
   460	static struct platform_driver mpc8xxx_plat_driver = {
   461		.probe		= mpc8xxx_probe,
   462		.remove		= mpc8xxx_remove,
 > 463		.shutdown	= mpc8xxx_shutdown,
   464		.driver		= {
   465			.name = "gpio-mpc8xxx",
   466			.of_match_table	= mpc8xxx_gpio_ids,
   467		},
   468	};
   469	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip


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