Re: [v2 2/2] backlight: Add DisplayPort aux backlight driver

[kernel test robot <lkp@intel.com>]

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Hi Rajeev,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on lee-backlight/for-backlight-next]
[also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next v5.12-rc8 next-20210423]
[cannot apply to drm/drm-next]
[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/Rajeev-Nandan/drm-Add-support-for-backlight-control-of-eDP-panel-on-ti-sn65dsi86-bridge/20210424-055607
base:   https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
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/8ecbdba09ae9869fe35ca8a17a76ef414eeb7edd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Rajeev-Nandan/drm-Add-support-for-backlight-control-of-eDP-panel-on-ti-sn65dsi86-bridge/20210424-055607
        git checkout 8ecbdba09ae9869fe35ca8a17a76ef414eeb7edd
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=mips 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/kallsyms.h:13,
                    from include/linux/ftrace.h:12,
                    from include/linux/kprobes.h:29,
                    from include/linux/kgdb.h:19,
                    from include/linux/fb.h:5,
                    from include/linux/backlight.h:13,
                    from drivers/video/backlight/dp_aux_backlight.c:6:
>> include/linux/module.h:241:1: error: expected ',' or ';' before 'extern'
     241 | extern typeof(name) __mod_##type##__##name##_device_table  \
         | ^~~~~~
   drivers/video/backlight/dp_aux_backlight.c:231:1: note: in expansion of macro 'MODULE_DEVICE_TABLE'
     231 | MODULE_DEVICE_TABLE(of, dp_aux_bl_of_match_table);
         | ^~~~~~~~~~~~~~~~~~~


vim +241 include/linux/module.h

^1da177e4c3f41 Linus Torvalds    2005-04-16  237  
cff26a51da5d20 Rusty Russell     2014-02-03  238  #ifdef MODULE
cff26a51da5d20 Rusty Russell     2014-02-03  239  /* Creates an alias so file2alias.c can find device table. */
^1da177e4c3f41 Linus Torvalds    2005-04-16  240  #define MODULE_DEVICE_TABLE(type, name)					\
0bf8bf50eddc75 Matthias Kaehlcke 2017-07-24 @241  extern typeof(name) __mod_##type##__##name##_device_table		\
cff26a51da5d20 Rusty Russell     2014-02-03  242    __attribute__ ((unused, alias(__stringify(name))))
cff26a51da5d20 Rusty Russell     2014-02-03  243  #else  /* !MODULE */
cff26a51da5d20 Rusty Russell     2014-02-03  244  #define MODULE_DEVICE_TABLE(type, name)
cff26a51da5d20 Rusty Russell     2014-02-03  245  #endif
^1da177e4c3f41 Linus Torvalds    2005-04-16  246  

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

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