Hi Bernard, Thank you for the patch! Yet something to improve: [auto build test ERROR on pza/reset/next] [also build test ERROR on drm-intel/for-linux-next drm-tip/drm-tip linus/master v5.7-rc3 next-20200430] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Bernard-Zhao/drm-mediatek-cleanup-coding-style-in-mediatek-a-bit/20200428-055750 base: https://git.pengutronix.de/git/pza/linux reset/next config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot All errors (new ones prefixed by >>): drivers/gpu/drm/mediatek/mtk_hdmi.c: In function 'mtk_hdmi_hw_send_info_frame': >> drivers/gpu/drm/mediatek/mtk_hdmi.c:1807: error: unterminated argument list invoking macro "dev_err" 1807 | MODULE_LICENSE("GPL v2"); | >> drivers/gpu/drm/mediatek/mtk_hdmi.c:316:3: error: 'dev_err' undeclared (first use in this function); did you mean '_dev_err'? 316 | dev_err(hdmi->dev, "Wrong frame len: %d\n", frame_len; | ^~~~~~~ | _dev_err drivers/gpu/drm/mediatek/mtk_hdmi.c:316:3: note: each undeclared identifier is reported only once for each function it appears in >> drivers/gpu/drm/mediatek/mtk_hdmi.c:316:10: error: expected ';' at end of input 316 | dev_err(hdmi->dev, "Wrong frame len: %d\n", frame_len; | ^ | ; ...... 1807 | MODULE_LICENSE("GPL v2"); | >> drivers/gpu/drm/mediatek/mtk_hdmi.c:316:3: error: expected declaration or statement at end of input 316 | dev_err(hdmi->dev, "Wrong frame len: %d\n", frame_len; | ^~~~~~~ >> drivers/gpu/drm/mediatek/mtk_hdmi.c:316:3: error: expected declaration or statement at end of input drivers/gpu/drm/mediatek/mtk_hdmi.c:308:6: warning: unused variable 'ctrl_frame_en' [-Wunused-variable] 308 | int ctrl_frame_en = 0; | ^~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:302:6: warning: unused variable 'i' [-Wunused-variable] 302 | int i; | ^ drivers/gpu/drm/mediatek/mtk_hdmi.c:301:6: warning: unused variable 'ctrl_reg' [-Wunused-variable] 301 | u32 ctrl_reg = GRL_CTRL; | ^~~~~~~~ At top level: drivers/gpu/drm/mediatek/mtk_hdmi.c:298:13: warning: 'mtk_hdmi_hw_send_info_frame' defined but not used [-Wunused-function] 298 | static void mtk_hdmi_hw_send_info_frame(struct mtk_hdmi *hdmi, u8 *buffer, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:293:13: warning: 'mtk_hdmi_hw_enable_dvi_mode' defined but not used [-Wunused-function] 293 | static void mtk_hdmi_hw_enable_dvi_mode(struct mtk_hdmi *hdmi, bool enable) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:288:13: warning: 'mtk_hdmi_hw_write_int_mask' defined but not used [-Wunused-function] 288 | static void mtk_hdmi_hw_write_int_mask(struct mtk_hdmi *hdmi, u32 int_mask) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:282:13: warning: 'mtk_hdmi_hw_enable_notice' defined but not used [-Wunused-function] 282 | static void mtk_hdmi_hw_enable_notice(struct mtk_hdmi *hdmi, bool enable_notice) | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:271:13: warning: 'mtk_hdmi_hw_reset' defined but not used [-Wunused-function] 271 | static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi) | ^~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:266:13: warning: 'mtk_hdmi_hw_aud_unmute' defined but not used [-Wunused-function] 266 | static void mtk_hdmi_hw_aud_unmute(struct mtk_hdmi *hdmi) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:261:13: warning: 'mtk_hdmi_hw_aud_mute' defined but not used [-Wunused-function] 261 | static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:255:13: warning: 'mtk_hdmi_hw_1p4_version_enable' defined but not used [-Wunused-function] 255 | static void mtk_hdmi_hw_1p4_version_enable(struct mtk_hdmi *hdmi, bool enable) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:230:13: warning: 'mtk_hdmi_hw_make_reg_writable' defined but not used [-Wunused-function] 230 | static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:224:13: warning: 'mtk_hdmi_hw_vid_black' defined but not used [-Wunused-function] 224 | static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black) | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_hdmi.c:184:12: warning: 'mtk_hdmi_read' defined but not used [-Wunused-function] 184 | static u32 mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset) | ^~~~~~~~~~~~~ vim +/dev_err +1807 drivers/gpu/drm/mediatek/mtk_hdmi.c 8f83f26891e1257 Jie Qiu 2016-01-04 1804 8f83f26891e1257 Jie Qiu 2016-01-04 1805 MODULE_AUTHOR("Jie Qiu "); 8f83f26891e1257 Jie Qiu 2016-01-04 1806 MODULE_DESCRIPTION("MediaTek HDMI Driver"); 8f83f26891e1257 Jie Qiu 2016-01-04 @1807 MODULE_LICENSE("GPL v2"); :::::: The code at line 1807 was first introduced by commit :::::: 8f83f26891e12570780dcfc8ae376b655915ff6d drm/mediatek: Add HDMI support :::::: TO: Jie Qiu :::::: CC: Philipp Zabel --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org