Re: [PATCH 3/4] drm/tiny: add simple-dbi driver

From: kernel test robot <lkp@intel.com>
To: Icenowy Zheng <icenowy@sipeed.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Rob Herring <robh+dt@kernel.org>
Cc: kbuild-all@lists.01.org, dri-devel@lists.freedesktop.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Icenowy Zheng <icenowy@sipeed.com>
Subject: Re: [PATCH 3/4] drm/tiny: add simple-dbi driver
Date: Mon, 2 Aug 2021 17:02:42 +0800	[thread overview]
Message-ID: <202108021612.9c0Wvctp-lkp@intel.com> (raw)
In-Reply-To: <20210802063538.75583-4-icenowy@sipeed.com>

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Hi Icenowy,

I love your patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip linus/master v5.14-rc3 next-20210730]
[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/Icenowy-Zheng/Add-simple-dbi-tinydrm-driver/20210802-144017
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 10.3.0
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/257b1975790880588d1ec7cfec4ebde54d23d63a
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Icenowy-Zheng/Add-simple-dbi-tinydrm-driver/20210802-144017
        git checkout 257b1975790880588d1ec7cfec4ebde54d23d63a
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/gpu/drm/tiny/

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:14,
                    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/gpu/drm/tiny/simple-dbi.c:9:
>> include/linux/module.h:244:1: error: expected ',' or ';' before 'extern'
     244 | extern typeof(name) __mod_##type##__##name##_device_table  \
         | ^~~~~~
   drivers/gpu/drm/tiny/simple-dbi.c:148:1: note: in expansion of macro 'MODULE_DEVICE_TABLE'
     148 | MODULE_DEVICE_TABLE(of, simple_dbi_of_match);
         | ^~~~~~~~~~~~~~~~~~~

vim +244 include/linux/module.h

^1da177e4c3f41 Linus Torvalds    2005-04-16  240  
cff26a51da5d20 Rusty Russell     2014-02-03  241  #ifdef MODULE
cff26a51da5d20 Rusty Russell     2014-02-03  242  /* Creates an alias so file2alias.c can find device table. */
^1da177e4c3f41 Linus Torvalds    2005-04-16  243  #define MODULE_DEVICE_TABLE(type, name)					\
0bf8bf50eddc75 Matthias Kaehlcke 2017-07-24 @244  extern typeof(name) __mod_##type##__##name##_device_table		\
cff26a51da5d20 Rusty Russell     2014-02-03  245    __attribute__ ((unused, alias(__stringify(name))))
cff26a51da5d20 Rusty Russell     2014-02-03  246  #else  /* !MODULE */
cff26a51da5d20 Rusty Russell     2014-02-03  247  #define MODULE_DEVICE_TABLE(type, name)
cff26a51da5d20 Rusty Russell     2014-02-03  248  #endif
^1da177e4c3f41 Linus Torvalds    2005-04-16  249  

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

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