Re: [PATCH] fbdev: fbmem: Fix the implicit type casting

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Hi Yizhuo,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.17-rc2 next-20220131]
[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]

url:    https://github.com/0day-ci/linux/commits/Yizhuo-Zhai/fbdev-fbmem-Fix-the-implicit-type-casting/20220131-150528
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 26291c54e111ff6ba87a164d85d4a4e134b7315c
config: x86_64-randconfig-a013-20220131 (https://download.01.org/0day-ci/archive/20220131/202201311810.zlRDWfNU-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2cdbaca3943a4d6259119f185656328bd3805b68)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/b8f540468e70290c8278fc2611adc2f9b38f821f
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Yizhuo-Zhai/fbdev-fbmem-Fix-the-implicit-type-casting/20220131-150528
        git checkout b8f540468e70290c8278fc2611adc2f9b38f821f
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> drivers/video/fbdev/core/fbmem.c:1067:1: error: conflicting types for 'fb_blank'
   fb_blank(struct fb_info *info, unsigned long blank)
   ^
   include/linux/fb.h:591:12: note: previous declaration is here
   extern int fb_blank(struct fb_info *info, int blank);
              ^
   1 error generated.


vim +/fb_blank +1067 drivers/video/fbdev/core/fbmem.c

  1065	
  1066	int
> 1067	fb_blank(struct fb_info *info, unsigned long blank)
  1068	{
  1069		struct fb_event event;
  1070		int ret = -EINVAL;
  1071	
  1072		if (blank > FB_BLANK_POWERDOWN)
  1073			blank = FB_BLANK_POWERDOWN;
  1074	
  1075		event.info = info;
  1076		event.data = &blank;
  1077	
  1078		if (info->fbops->fb_blank)
  1079			ret = info->fbops->fb_blank(blank, info);
  1080	
  1081		if (!ret)
  1082			fb_notifier_call_chain(FB_EVENT_BLANK, &event);
  1083	
  1084		return ret;
  1085	}
  1086	EXPORT_SYMBOL(fb_blank);
  1087	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx



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