tree: https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git master head: 6a5d6020e6854b38797ea17807457dcdc858aa29 commit: a3b63172d757ac1a27e1f179585052f38e0ddd8c [64/99] Merge remote-tracking branch 'drm/drm-next' into renesas-drivers config: hexagon-randconfig-r045-20220322 (https://download.01.org/0day-ci/archive/20220323/202203230213.cy4sjibp-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 85e9b2687a13d1908aa86d1b89c5ce398a06cd39) 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://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?id=a3b63172d757ac1a27e1f179585052f38e0ddd8c git remote add geert-renesas-drivers https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git git fetch --no-tags geert-renesas-drivers master git checkout a3b63172d757ac1a27e1f179585052f38e0ddd8c # 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=hexagon SHELL=/bin/bash drivers/gpu/drm/tiny/ 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/gpu/drm/tiny/panel-mipi-dbi.c:391:12: error: incompatible function pointer types initializing 'void (*)(struct spi_device *)' with an expression of type 'int (struct spi_device *)' [-Werror,-Wincompatible-function-pointer-types] .remove = panel_mipi_dbi_spi_remove, ^~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. vim +391 drivers/gpu/drm/tiny/panel-mipi-dbi.c 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 381 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 382 static struct spi_driver panel_mipi_dbi_spi_driver = { 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 383 .driver = { 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 384 .name = "panel-mipi-dbi-spi", 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 385 .owner = THIS_MODULE, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 386 .of_match_table = panel_mipi_dbi_spi_of_match, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 387 .pm = &panel_mipi_dbi_pm_ops, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 388 }, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 389 .id_table = panel_mipi_dbi_spi_id, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 390 .probe = panel_mipi_dbi_spi_probe, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 @391 .remove = panel_mipi_dbi_spi_remove, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 392 .shutdown = panel_mipi_dbi_spi_shutdown, 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 393 }; 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 394 module_spi_driver(panel_mipi_dbi_spi_driver); 0e65e2e6abb09d8 Noralf Trønnes 2022-02-27 395 :::::: The code at line 391 was first introduced by commit :::::: 0e65e2e6abb09d84a75c51999e3a6cf80f30c929 drm/tiny: Add MIPI DBI compatible SPI driver :::::: TO: Noralf Trønnes <noralf@xxxxxxxxxxx> :::::: CC: Maxime Ripard <maxime@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
