Re: [PATCH v2] gpio: Restrict usage of gc irq members before initialization

[kernel test robot <lkp@intel.com>]

Hi Shreeya,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linusw-gpio/for-next]
[also build test ERROR on v5.17-rc8 next-20220310]
[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/Shreeya-Patel/gpio-Restrict-usage-of-gc-irq-members-before-initialization/20220315-183950
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
config: arm-xcep_defconfig (https://download.01.org/0day-ci/archive/20220316/202203160100.PENzQsMs-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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/9f566a088a6f5fcb8830b07020294835072d516c
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shreeya-Patel/gpio-Restrict-usage-of-gc-irq-members-before-initialization/20220315-183950
        git checkout 9f566a088a6f5fcb8830b07020294835072d516c
        # 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=arm SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   drivers/gpio/gpiolib.c: In function 'gpiod_to_irq':
>> drivers/gpio/gpiolib.c:3068:29: error: 'struct gpio_chip' has no member named 'irq'
    3068 |         if (gc->to_irq && gc->irq.gc_irq_initialized) {
         |                             ^~


vim +3068 drivers/gpio/gpiolib.c

  3045	
  3046	/**
  3047	 * gpiod_to_irq() - return the IRQ corresponding to a GPIO
  3048	 * @desc: gpio whose IRQ will be returned (already requested)
  3049	 *
  3050	 * Return the IRQ corresponding to the passed GPIO, or an error code in case of
  3051	 * error.
  3052	 */
  3053	int gpiod_to_irq(const struct gpio_desc *desc)
  3054	{
  3055		struct gpio_chip *gc;
  3056		int offset;
  3057	
  3058		/*
  3059		 * Cannot VALIDATE_DESC() here as gpiod_to_irq() consumer semantics
  3060		 * requires this function to not return zero on an invalid descriptor
  3061		 * but rather a negative error number.
  3062		 */
  3063		if (!desc || IS_ERR(desc) || !desc->gdev || !desc->gdev->chip)
  3064			return -EINVAL;
  3065	
  3066		gc = desc->gdev->chip;
  3067		offset = gpio_chip_hwgpio(desc);
> 3068		if (gc->to_irq && gc->irq.gc_irq_initialized) {
  3069			int retirq = gc->to_irq(gc, offset);
  3070	
  3071			/* Zero means NO_IRQ */
  3072			if (!retirq)
  3073				return -ENXIO;
  3074	
  3075			return retirq;
  3076		}
  3077		return -ENXIO;
  3078	}
  3079	EXPORT_SYMBOL_GPL(gpiod_to_irq);
  3080	

---
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