Hi Lu, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on next-20230601] [cannot apply to linus/master v6.4-rc4] [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/Lu-Hongfei/gpu-drm-panel-Optimize-the-workflow-of-s6d7aa0_lock/20230531-190848 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230531110717.36896-1-luhongfei%40vivo.com patch subject: [PATCH] gpu: drm/panel: Optimize the workflow of s6d7aa0_lock config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230601/202306012354.obLJxas6-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/e1ade7d20fb0efb9aa0b332d5ac5da2863f8e68e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Lu-Hongfei/gpu-drm-panel-Optimize-the-workflow-of-s6d7aa0_lock/20230531-190848 git checkout e1ade7d20fb0efb9aa0b332d5ac5da2863f8e68e # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/panel/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306012354.obLJxas6-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:17: drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c: In function 's6d7aa0_lock': include/drm/drm_mipi_dsi.h:326:9: error: expected expression before 'do' 326 | do { \ | ^~ drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:72:23: note: in expansion of macro 'mipi_dsi_dcs_write_seq' 72 | ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5); | ^~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_mipi_dsi.h:326:9: error: expected expression before 'do' 326 | do { \ | ^~ drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:75:23: note: in expansion of macro 'mipi_dsi_dcs_write_seq' 75 | ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD2, 0xa5, 0xa5); | ^~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_mipi_dsi.h:326:9: error: expected expression before 'do' 326 | do { \ | ^~ drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:79:31: note: in expansion of macro 'mipi_dsi_dcs_write_seq' 79 | ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0x5a, 0x5a); | ^~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_mipi_dsi.h:326:9: error: expected expression before 'do' 326 | do { \ | ^~ drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:84:23: note: in expansion of macro 'mipi_dsi_dcs_write_seq' 84 | ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0x5a, 0x5a); | ^~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_mipi_dsi.h:326:9: error: expected expression before 'do' 326 | do { \ | ^~ drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:87:23: note: in expansion of macro 'mipi_dsi_dcs_write_seq' 87 | ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD2, 0x5a, 0x5a); | ^~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_mipi_dsi.h:326:9: error: expected expression before 'do' 326 | do { \ | ^~ drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:91:31: note: in expansion of macro 'mipi_dsi_dcs_write_seq' 91 | ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5); | ^~~~~~~~~~~~~~~~~~~~~~ >> drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:68:33: warning: unused variable 'dsi' [-Wunused-variable] 68 | struct mipi_dsi_device *dsi = ctx->dsi; | ^~~ vim +/dsi +68 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c 6810bb390282bb Artur Weber 2023-05-19 65 6810bb390282bb Artur Weber 2023-05-19 66 static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock) 6810bb390282bb Artur Weber 2023-05-19 67 { 6810bb390282bb Artur Weber 2023-05-19 @68 struct mipi_dsi_device *dsi = ctx->dsi; 6810bb390282bb Artur Weber 2023-05-19 69 int ret = 0; 6810bb390282bb Artur Weber 2023-05-19 70 6810bb390282bb Artur Weber 2023-05-19 71 if (lock) { e1ade7d20fb0ef Lu Hongfei 2023-05-31 72 ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5); e1ade7d20fb0ef Lu Hongfei 2023-05-31 73 if (ret < 0) e1ade7d20fb0ef Lu Hongfei 2023-05-31 74 return ret; e1ade7d20fb0ef Lu Hongfei 2023-05-31 75 ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD2, 0xa5, 0xa5); e1ade7d20fb0ef Lu Hongfei 2023-05-31 76 if (ret < 0) e1ade7d20fb0ef Lu Hongfei 2023-05-31 77 return ret; e1ade7d20fb0ef Lu Hongfei 2023-05-31 78 if (ctx->desc->use_passwd3) { e1ade7d20fb0ef Lu Hongfei 2023-05-31 79 ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0x5a, 0x5a); e1ade7d20fb0ef Lu Hongfei 2023-05-31 80 if (ret < 0) e1ade7d20fb0ef Lu Hongfei 2023-05-31 81 return ret; e1ade7d20fb0ef Lu Hongfei 2023-05-31 82 } 6810bb390282bb Artur Weber 2023-05-19 83 } else { e1ade7d20fb0ef Lu Hongfei 2023-05-31 84 ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0x5a, 0x5a); e1ade7d20fb0ef Lu Hongfei 2023-05-31 85 if (ret < 0) e1ade7d20fb0ef Lu Hongfei 2023-05-31 86 return ret; e1ade7d20fb0ef Lu Hongfei 2023-05-31 87 ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD2, 0x5a, 0x5a); e1ade7d20fb0ef Lu Hongfei 2023-05-31 88 if (ret < 0) e1ade7d20fb0ef Lu Hongfei 2023-05-31 89 return ret; e1ade7d20fb0ef Lu Hongfei 2023-05-31 90 if (ctx->desc->use_passwd3) { e1ade7d20fb0ef Lu Hongfei 2023-05-31 91 ret = mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5); e1ade7d20fb0ef Lu Hongfei 2023-05-31 92 if (ret < 0) e1ade7d20fb0ef Lu Hongfei 2023-05-31 93 return ret; e1ade7d20fb0ef Lu Hongfei 2023-05-31 94 } 6810bb390282bb Artur Weber 2023-05-19 95 } 6810bb390282bb Artur Weber 2023-05-19 96 6810bb390282bb Artur Weber 2023-05-19 97 return ret; 6810bb390282bb Artur Weber 2023-05-19 98 } 6810bb390282bb Artur Weber 2023-05-19 99 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki