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: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 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/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=gcc-9.3.0 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@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/tiny/st7586.c:25: drivers/gpu/drm/tiny/st7586.c: In function 'st7586_pipe_disable': >> include/drm/drm_mipi_dbi.h:186:27: error: invalid type argument of '->' (have 'struct mipi_dbi') 186 | struct device *dev = &dbi->spi->dev; \ | ^~ drivers/gpu/drm/tiny/st7586.c:260:2: note: in expansion of macro 'mipi_dbi_command' 260 | mipi_dbi_command(&dbidev->dbi, MIPI_DCS_SET_DISPLAY_OFF); | ^~~~~~~~~~~~~~~~ vim +186 include/drm/drm_mipi_dbi.h 160 161 u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len); 162 int mipi_dbi_spi_transfer(struct spi_device *spi, u32 speed_hz, 163 u8 bpw, const void *buf, size_t len); 164 165 int mipi_dbi_command_read(struct mipi_dbi *dbi, u8 cmd, u8 *val); 166 int mipi_dbi_command_buf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len); 167 int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data, 168 size_t len); 169 int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb, 170 struct drm_rect *clip, bool swap); 171 /** 172 * mipi_dbi_command - MIPI DCS command with optional parameter(s) 173 * @dbi: MIPI DBI structure 174 * @cmd: Command 175 * @seq: Optional parameter(s) 176 * 177 * Send MIPI DCS command to the controller. Use mipi_dbi_command_read() for 178 * get/read. 179 * 180 * Returns: 181 * Zero on success, negative error code on failure. 182 */ 183 #define mipi_dbi_command(dbi, cmd, seq...) \ 184 ({ \ 185 const u8 d[] = { seq }; \ > 186 struct device *dev = &dbi->spi->dev; \ 187 int ret; \ 188 ret = mipi_dbi_command_stackbuf(dbi, cmd, d, ARRAY_SIZE(d)); \ 189 if (ret) \ 190 dev_err_ratelimited(dev, "error %d when sending command\n", ret); \ 191 }) 192 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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