linux-kernel - Re: [PATCH] gpiolib: add hogs support for machine code

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Date:   Wed, 11 Apr 2018 01:05:23 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     kbuild-all@...org, Linus Walleij <linus.walleij@...aro.org>,
        Jonathan Corbet <corbet@....net>, linux-gpio@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <brgl@...ev.pl>
Subject: Re: [PATCH] gpiolib: add hogs support for machine code

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	

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