Hi Noralf, url: https://github.com/0day-ci/linux/commits/Noralf-Tr-nnes/drm-tinydrm-Use-damage-helper-for-dirtyfb/20190110-194410 New smatch warnings: drivers/gpu/drm/tinydrm/mipi-dbi.c:305 mipi_dbi_enable_flush() warn: variable dereferenced before check 'fb' (see line 299) Old smatch warnings: drivers/gpu/drm/tinydrm/mipi-dbi.c:108 mipi_dbi_command_is_read() error: buffer overflow 'mipi->read_commands' 21 <= 254 drivers/gpu/drm/tinydrm/mipi-dbi.c:110 mipi_dbi_command_is_read() error: buffer overflow 'mipi->read_commands' 21 <= 254 # https://github.com/0day-ci/linux/commit/50dd14907581e982f534b7718bc3f8c903f46c88 git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout 50dd14907581e982f534b7718bc3f8c903f46c88 vim +/fb +305 drivers/gpu/drm/tinydrm/mipi-dbi.c 02dd95fe Noralf Trønnes 2017-01-22 281 02dd95fe Noralf Trønnes 2017-01-22 282 /** 22edc8d3 Noralf Trønnes 2018-01-10 283 * mipi_dbi_enable_flush - MIPI DBI enable helper 22edc8d3 Noralf Trønnes 2018-01-10 284 * @mipi: MIPI DBI structure 5685ca0c Noralf Trønnes 2018-07-10 285 * @crtc_state: CRTC state 5685ca0c Noralf Trønnes 2018-07-10 286 * @plane_state: Plane state 22edc8d3 Noralf Trønnes 2018-01-10 287 * 22edc8d3 Noralf Trønnes 2018-01-10 288 * This function sets &mipi_dbi->enabled, flushes the whole framebuffer and 22edc8d3 Noralf Trønnes 2018-01-10 289 * enables the backlight. Drivers can use this in their 22edc8d3 Noralf Trønnes 2018-01-10 290 * &drm_simple_display_pipe_funcs->enable callback. 22edc8d3 Noralf Trønnes 2018-01-10 291 */ e85d3006 Ville Syrjälä 2018-03-23 292 void mipi_dbi_enable_flush(struct mipi_dbi *mipi, e85d3006 Ville Syrjälä 2018-03-23 293 struct drm_crtc_state *crtc_state, e85d3006 Ville Syrjälä 2018-03-23 294 struct drm_plane_state *plane_state) 22edc8d3 Noralf Trønnes 2018-01-10 295 { e85d3006 Ville Syrjälä 2018-03-23 296 struct drm_framebuffer *fb = plane_state->fb; 50dd1490 Noralf Trønnes 2019-01-09 297 struct drm_rect rect = { 50dd1490 Noralf Trønnes 2019-01-09 298 .x1 = 0, 50dd1490 Noralf Trønnes 2019-01-09 @299 .x2 = fb->width, 50dd1490 Noralf Trønnes 2019-01-09 300 .y1 = 0, 50dd1490 Noralf Trønnes 2019-01-09 301 .y2 = fb->height, 50dd1490 Noralf Trønnes 2019-01-09 302 }; 22edc8d3 Noralf Trønnes 2018-01-10 303 22edc8d3 Noralf Trønnes 2018-01-10 304 mipi->enabled = true; 22edc8d3 Noralf Trønnes 2018-01-10 @305 if (fb) 50dd1490 Noralf Trønnes 2019-01-09 306 mipi_dbi_fb_dirty(fb, &rect); 22edc8d3 Noralf Trønnes 2018-01-10 307 414147e8 Meghana Madhyastha 2018-01-24 308 backlight_enable(mipi->backlight); 22edc8d3 Noralf Trønnes 2018-01-10 309 } 22edc8d3 Noralf Trønnes 2018-01-10 310 EXPORT_SYMBOL(mipi_dbi_enable_flush); 22edc8d3 Noralf Trønnes 2018-01-10 311 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
