Re: [PATCH v1 1/1] gpiolib: Introduce for_each_gpio_desc() macro

From: kernel test robot <lkp@intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Kent Gibson <warthog618@gmail.com>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: kbuild-all@lists.01.org, Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH v1 1/1] gpiolib: Introduce for_each_gpio_desc() macro
Date: Tue, 11 May 2021 07:36:58 +0800	[thread overview]
Message-ID: <202105110723.VQRv6lJT-lkp@intel.com> (raw)
In-Reply-To: <20210510195242.12443-1-andriy.shevchenko@linux.intel.com>

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Hi Andy,

I love your patch! Perhaps something to improve:

[auto build test WARNING on gpio/for-next]
[also build test WARNING on v5.13-rc1 next-20210510]
[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/Andy-Shevchenko/gpiolib-Introduce-for_each_gpio_desc-macro/20210511-035305
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
config: arm-randconfig-s031-20210510 (attached as .config)
compiler: arm-linux-gnueabi-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
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://github.com/0day-ci/linux/commit/ceaf41face19ca3a36b81b3b866c1708a90cb4e2
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Andy-Shevchenko/gpiolib-Introduce-for_each_gpio_desc-macro/20210511-035305
        git checkout ceaf41face19ca3a36b81b3b866c1708a90cb4e2
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
>> drivers/gpio/gpiolib-of.c:718:50: sparse: sparse: incorrect type in argument 2 (different base types) @@     expected unsigned long const volatile *addr @@     got unsigned long flags @@
   drivers/gpio/gpiolib-of.c:718:50: sparse:     expected unsigned long const volatile *addr
   drivers/gpio/gpiolib-of.c:718:50: sparse:     got unsigned long flags

vim +718 drivers/gpio/gpiolib-of.c

   704	
   705	#ifdef CONFIG_OF_DYNAMIC
   706	/**
   707	 * of_gpiochip_remove_hog - Remove all hogs in a hog device node
   708	 * @chip:	gpio chip to act on
   709	 * @hog:	device node describing the hogs
   710	 */
   711	static void of_gpiochip_remove_hog(struct gpio_chip *chip,
   712					   struct device_node *hog)
   713	{
   714		struct gpio_desc *desc;
   715		unsigned int i;
   716	
   717		for_each_gpio_desc(i, chip, desc) {
 > 718			if (test_bit(FLAG_IS_HOGGED, desc->flags) && desc->hog == hog)
   719				gpiochip_free_own_desc(desc);
   720		}
   721	}
   722	

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

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