Hi Meghana,

[auto build test WARNING on drm/drm-next]
[also build test WARNING on v4.14-rc2 next-20170929]
[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/Meghana-Madhyastha/drm-tinydrm-drm_of_find_backlight-helper/20170930-122931
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: x86_64-randconfig-x017-201739 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu//drm/tinydrm/mi0283qt.c:15:0:
   include/drm/drm_of.h:74:1: error: expected identifier or '(' before '{' token
    {
    ^
   include/drm/drm_of.h:80:1: error: expected identifier or '(' before '{' token
    {
    ^
   include/drm/drm_of.h:72:40: warning: 'drm_of_find_backlight' declared 'static' but never defined [-Wunused-function]
    static inline struct backlight_device *drm_of_find_backlight(
                                           ^~~~~~~~~~~~~~~~~~~~~
>> include/drm/drm_of.h:78:40: warning: 'devm_drm_of_find_backlight' used but never defined
    static inline struct backlight_device *devm_drm_of_find_backlight(
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/devm_drm_of_find_backlight +78 include/drm/drm_of.h

    71	
    72	static inline struct backlight_device *drm_of_find_backlight(
    73						struct device *dev);
  > 74	{
    75		return -EINVAL;
    76	}
    77	
  > 78	static inline struct backlight_device *devm_drm_of_find_backlight(
    79							struct device *dev);
    80	{
    81		return -EINVAL;
    82	}
    83	#endif
    84	

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