Re: [PATCH 2/7] fbdev: Do not include <linux/backlight.h> in header

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Thomas,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on linus/master v6.8-rc4 next-20240212]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/drm-nouveau-Include-linux-backlight-h/20240212-181930
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20240212101712.23675-3-tzimmermann%40suse.de
patch subject: [PATCH 2/7] fbdev: Do not include <linux/backlight.h> in header
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20240213/202402130346.2iGNwgDE-lkp@xxxxxxxxx/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project c08b90c50bcac9f3f563c79491c8dbcbe7c3b574)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240213/202402130346.2iGNwgDE-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402130346.2iGNwgDE-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> drivers/staging/fbtft/fb_ssd1351.c:192:26: error: call to undeclared function 'bl_get_data'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     192 |         struct fbtft_par *par = bl_get_data(bd);
         |                                 ^
>> drivers/staging/fbtft/fb_ssd1351.c:192:20: error: incompatible integer to pointer conversion initializing 'struct fbtft_par *' with an expression of type 'int' [-Wint-conversion]
     192 |         struct fbtft_par *par = bl_get_data(bd);
         |                           ^     ~~~~~~~~~~~~~~~
>> drivers/staging/fbtft/fb_ssd1351.c:197:21: error: incomplete definition of type 'struct backlight_device'
     197 |                       __func__, bd->props.power, bd->props.fb_blank);
         |                                 ~~^
   drivers/staging/fbtft/fbtft.h:433:43: note: expanded from macro 'fbtft_par_dbg'
     433 |                 dev_info((par)->info->device, format, ##arg);  \
         |                                                         ^~~
   include/linux/dev_printk.h:150:67: note: expanded from macro 'dev_info'
     150 |         dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                                          ^~~~~~~~~~~
   include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                                     ^~~~~~~~~~~
   include/linux/fb.h:20:8: note: forward declaration of 'struct backlight_device'
      20 | struct backlight_device;
         |        ^
   drivers/staging/fbtft/fb_ssd1351.c:197:38: error: incomplete definition of type 'struct backlight_device'
     197 |                       __func__, bd->props.power, bd->props.fb_blank);
         |                                                  ~~^
   drivers/staging/fbtft/fbtft.h:433:43: note: expanded from macro 'fbtft_par_dbg'
     433 |                 dev_info((par)->info->device, format, ##arg);  \
         |                                                         ^~~
   include/linux/dev_printk.h:150:67: note: expanded from macro 'dev_info'
     150 |         dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                                          ^~~~~~~~~~~
   include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                                     ^~~~~~~~~~~
   include/linux/fb.h:20:8: note: forward declaration of 'struct backlight_device'
      20 | struct backlight_device;
         |        ^
>> drivers/staging/fbtft/fb_ssd1351.c:199:8: error: call to undeclared function 'backlight_is_blank'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     199 |         on = !backlight_is_blank(bd);
         |               ^
>> drivers/staging/fbtft/fb_ssd1351.c:206:35: error: variable has incomplete type 'const struct backlight_ops'
     206 | static const struct backlight_ops bl_ops = {
         |                                   ^
   drivers/staging/fbtft/fb_ssd1351.c:206:21: note: forward declaration of 'struct backlight_ops'
     206 | static const struct backlight_ops bl_ops = {
         |                     ^
>> drivers/staging/fbtft/fb_ssd1351.c:213:30: error: variable has incomplete type 'struct backlight_properties'
     213 |         struct backlight_properties bl_props = { 0, };
         |                                     ^
   drivers/staging/fbtft/fb_ssd1351.c:213:9: note: forward declaration of 'struct backlight_properties'
     213 |         struct backlight_properties bl_props = { 0, };
         |                ^
>> drivers/staging/fbtft/fb_ssd1351.c:215:18: error: use of undeclared identifier 'BACKLIGHT_RAW'
     215 |         bl_props.type = BACKLIGHT_RAW;
         |                         ^
>> drivers/staging/fbtft/fb_ssd1351.c:218:7: error: call to undeclared function 'backlight_device_register'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     218 |         bd = backlight_device_register(dev_driver_string(par->info->device),
         |              ^
   drivers/staging/fbtft/fb_ssd1351.c:218:7: note: did you mean '__root_device_register'?
   include/linux/device.h:1143:16: note: '__root_device_register' declared here
    1143 | struct device *__root_device_register(const char *name, struct module *owner);
         |                ^
   9 errors generated.


vim +197 drivers/staging/fbtft/fb_ssd1351.c

883daf0a5c35c8 Thomas Petazzoni 2014-12-31  189  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  190  static int update_onboard_backlight(struct backlight_device *bd)
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  191  {
883daf0a5c35c8 Thomas Petazzoni 2014-12-31 @192  	struct fbtft_par *par = bl_get_data(bd);
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  193  	bool on;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  194  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  195  	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  196  		      "%s: power=%d, fb_blank=%d\n",
883daf0a5c35c8 Thomas Petazzoni 2014-12-31 @197  		      __func__, bd->props.power, bd->props.fb_blank);
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  198  
66d653c37228cb Stephen Kitt     2022-06-07 @199  	on = !backlight_is_blank(bd);
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  200  	/* Onboard backlight connected to GPIO0 on SSD1351, GPIO1 unused */
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  201  	write_reg(par, 0xB5, on ? 0x03 : 0x02);
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  202  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  203  	return 0;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  204  }
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  205  
23801e3438f6ce Mike Rapoport    2015-09-03 @206  static const struct backlight_ops bl_ops = {
23801e3438f6ce Mike Rapoport    2015-09-03  207  	.update_status = update_onboard_backlight,
23801e3438f6ce Mike Rapoport    2015-09-03  208  };
23801e3438f6ce Mike Rapoport    2015-09-03  209  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  210  static void register_onboard_backlight(struct fbtft_par *par)
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  211  {
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  212  	struct backlight_device *bd;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31 @213  	struct backlight_properties bl_props = { 0, };
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  214  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31 @215  	bl_props.type = BACKLIGHT_RAW;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  216  	bl_props.power = FB_BLANK_POWERDOWN;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  217  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31 @218  	bd = backlight_device_register(dev_driver_string(par->info->device),
333c7b940526be Leonardo Brás    2018-08-07  219  				       par->info->device, par, &bl_ops,
333c7b940526be Leonardo Brás    2018-08-07  220  				       &bl_props);
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  221  	if (IS_ERR(bd)) {
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  222  		dev_err(par->info->device,
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  223  			"cannot register backlight device (%ld)\n",
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  224  			PTR_ERR(bd));
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  225  		return;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  226  	}
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  227  	par->info->bl_dev = bd;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  228  
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  229  	if (!par->fbtftops.unregister_backlight)
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  230  		par->fbtftops.unregister_backlight = fbtft_unregister_backlight;
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  231  }
883daf0a5c35c8 Thomas Petazzoni 2014-12-31  232  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux