Hi Bartosz,

I love your patch! Yet something to improve:

[auto build test ERROR on gpio/for-next]
[also build test ERROR on v4.16 next-20180410]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/Bartosz-Golaszewski/gpiolib-add-hogs-support-for-machine-code/20180410-232047
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git 
for-next
config: i386-randconfig-a0-201814 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   In file included from drivers//mfd/sm501.c:23:0:
>> include/linux/gpio/machine.h:56:19: error: field 'dflags' has incomplete type
     enum gpiod_flags dflags;
                      ^

vim +/dflags +56 include/linux/gpio/machine.h

    41  
    42  /**
    43   * struct gpiod_hog - GPIO line hog table
    44   * @chip_label: name of the chip the GPIO belongs to
    45   * @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
    46   * @line_name: consumer name for the hogged line
    47   * @lflags: mask of GPIO lookup flags
    48   * @dflags: GPIO flags used to specify the direction and value
    49   */
    50  struct gpiod_hog {
    51          struct list_head list;
    52          const char *chip_label;
    53          u16 chip_hwnum;
    54          const char *line_name;
    55          enum gpio_lookup_flags lflags;
  > 56          enum gpiod_flags dflags;
    57  };
    58  

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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