[input:rotary-encoder 4/6] drivers/input/misc/rotary_encoder.c:220:21: error: storage size of 'flags' isn't known

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git rotary-encoder
head:   557a30f2f04695555bca5a276ceddd18a929375a
commit: 7082ea4bde4979bd3fa377ada1f63dbb0d98f6c8 [4/6] Input: rotary_encoder - convert to use gpiod API
config: x86_64-randconfig-s2-01190151 (attached as .config)
reproduce:
        git checkout 7082ea4bde4979bd3fa377ada1f63dbb0d98f6c8
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: the input/rotary-encoder HEAD 557a30f2f04695555bca5a276ceddd18a929375a builds fine.
      It only hurts bisectibility.

All error/warnings (new ones prefixed by >>):

   drivers/input/misc/rotary_encoder.c: In function 'rotary_encoder_parse_dt':

quoted

drivers/input/misc/rotary_encoder.c:220:21: error: storage size of 'flags' isn't known

     enum of_gpio_flags flags;
                        ^

quoted

drivers/input/misc/rotary_encoder.c:220:21: warning: unused variable 'flags' [-Wunused-variable]

vim +220 drivers/input/misc/rotary_encoder.c

5298cc4c Bill Pemberton  2012-11-23  214  static struct rotary_encoder_platform_data *rotary_encoder_parse_dt(struct device *dev)
80c99bcd Daniel Mack     2012-07-31  215  {
80c99bcd Daniel Mack     2012-07-31  216  	const struct of_device_id *of_id =
80c99bcd Daniel Mack     2012-07-31  217  				of_match_device(rotary_encoder_of_match, dev);
80c99bcd Daniel Mack     2012-07-31  218  	struct device_node *np = dev->of_node;
80c99bcd Daniel Mack     2012-07-31  219  	struct rotary_encoder_platform_data *pdata;
80c99bcd Daniel Mack     2012-07-31 @220  	enum of_gpio_flags flags;
3a341a4c Ezequiel Garcia 2015-10-13  221  	int error;
80c99bcd Daniel Mack     2012-07-31  222  
80c99bcd Daniel Mack     2012-07-31  223  	if (!of_id || !np)

:::::: The code at line 220 was first introduced by commit
:::::: 80c99bcd28617bd534b6f9489857235ee613c797 Input: rotary-encoder - add DT bindings

:::::: TO: Daniel Mack [off-list ref]
:::::: CC: Dmitry Torokhov [off-list ref]

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