Re: [PATCH v3] drm/i915: Deal with upside-down mounted LCD panels

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Hi Hans,

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on next-20170824]
[cannot apply to v4.13-rc6]
[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/Hans-de-Goede/drm-i915-Deal-with-upside-down-mounted-LCD-panels/20170825-061654
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-x001-201734 (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 >>):

   drivers/gpu/drm/i915/intel_display.c: In function 'intel_fixup_initial_subpixel_order':
>> drivers/gpu/drm/i915/intel_display.c:2804:2: warning: enumeration value 'SubPixelUnknown' not handled in switch [-Wswitch]
     switch (connector->display_info.subpixel_order) {
     ^~~~~~
>> drivers/gpu/drm/i915/intel_display.c:2804:2: warning: enumeration value 'SubPixelNone' not handled in switch [-Wswitch]
   In file included from include/uapi/linux/stddef.h:1:0,
                    from include/linux/stddef.h:4,
                    from include/uapi/linux/posix_types.h:4,
                    from include/uapi/linux/types.h:13,
                    from include/linux/types.h:5,
                    from include/linux/list.h:4,
                    from include/linux/dmi.h:4,
                    from drivers/gpu/drm/i915/intel_display.c:27:
   drivers/gpu/drm/i915/intel_display.c: At top level:
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'strcpy' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:390:2: note: in expansion of macro 'if'
     if (p_size == (size_t)-1 && q_size == (size_t)-1)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:380:2: note: in expansion of macro 'if'
     if (p_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:378:2: note: in expansion of macro 'if'
     if (__builtin_constant_p(size) && p_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:369:2: note: in expansion of macro 'if'
     if (p_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:367:2: note: in expansion of macro 'if'
     if (__builtin_constant_p(size) && p_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:358:2: note: in expansion of macro 'if'
     if (p_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:356:2: note: in expansion of macro 'if'
     if (__builtin_constant_p(size) && p_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:348:2: note: in expansion of macro 'if'
     if (p_size < size || q_size < size)
     ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:345:3: note: in expansion of macro 'if'
      if (q_size < size)
      ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static
       ______f = {     \
       ^
   include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
    #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                          ^~~~~~~~~~
   include/linux/string.h:343:3: note: in expansion of macro 'if'
      if (p_size < size)
      ^~
   include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static

vim +/SubPixelUnknown +2804 drivers/gpu/drm/i915/intel_display.c

  2793	
  2794	static void
  2795	intel_fixup_initial_subpixel_order(struct drm_connector *connector,
  2796					   u8 initial_rotation)
  2797	{
  2798		enum subpixel_order new_order;
  2799	
  2800		/* We only support an initial rotation of DRM_MODE_ROTATE_180 for now */
  2801		if (initial_rotation != DRM_MODE_ROTATE_180)
  2802			return;
  2803	
> 2804		switch (connector->display_info.subpixel_order) {
  2805		case SubPixelHorizontalRGB: new_order = SubPixelHorizontalBGR; break;
  2806		case SubPixelHorizontalBGR: new_order = SubPixelHorizontalRGB; break;
  2807		case SubPixelVerticalRGB:   new_order = SubPixelVerticalBGR;   break;
  2808		case SubPixelVerticalBGR:   new_order = SubPixelVerticalRGB;   break;
  2809		}
  2810	
  2811		connector->display_info.subpixel_order = new_order;
  2812	}
  2813	

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

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