Hi Linus, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.13 next-20210701] [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/Linus-Walleij/drm-dbi-Print-errors-for-mipi_dbi_command/20210702-180745 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 3dbdb38e286903ec220aaf1fb29a8d94297da246 config: arm64-randconfig-r001-20210702 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9eb613b2de3163686b1a4bd1160f15ac56a4b083) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/42d93a52e398adbb1fe2dfbc895c649cc8d42780 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Linus-Walleij/drm-dbi-Print-errors-for-mipi_dbi_command/20210702-180745 git checkout 42d93a52e398adbb1fe2dfbc895c649cc8d42780 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kvm/ 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/st7586.c:260:2: error: member reference type 'struct mipi_dbi' is not a pointer; did you mean to use '.'? mipi_dbi_command(&dbidev->dbi, MIPI_DCS_SET_DISPLAY_OFF); ^ ~~~~~~~~~~~ include/drm/drm_mipi_dbi.h:186:27: note: expanded from macro 'mipi_dbi_command' struct device *dev = &dbi->spi->dev; \ ~~~^ >> drivers/gpu/drm/tiny/st7586.c:260:2: error: cannot take the address of an rvalue of type 'struct device *' mipi_dbi_command(&dbidev->dbi, MIPI_DCS_SET_DISPLAY_OFF); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_mipi_dbi.h:186:23: note: expanded from macro 'mipi_dbi_command' struct device *dev = &dbi->spi->dev; \ ^~~~~~~~~~~~~~ 2 errors generated. vim +260 drivers/gpu/drm/tiny/st7586.c eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 246 eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 247 static void st7586_pipe_disable(struct drm_simple_display_pipe *pipe) eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 248 { 84137b866e834a drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-07-22 249 struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 250 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 251 /* 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 252 * This callback is not protected by drm_dev_enter/exit since we want to 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 253 * turn off the display on regular driver unload. It's highly unlikely 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 254 * that the underlying SPI controller is gone should this be called after 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 255 * unplug. 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 256 */ 9d5645ad1b979c drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-02-25 257 eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 258 DRM_DEBUG_KMS("\n"); eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 259 84137b866e834a drivers/gpu/drm/tinydrm/st7586.c Noralf Trønnes 2019-07-22 @260 mipi_dbi_command(&dbidev->dbi, MIPI_DCS_SET_DISPLAY_OFF); eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 261 } eac99d4a2013d9 drivers/gpu/drm/tinydrm/st7586.c David Lechner 2017-08-07 262 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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