Hi "Guido, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [cannot apply to v5.3-rc6 next-20190830] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Guido-G-nther/dt-bindings-display-bridge-Add-binding-for-NWL-mipi-dsi-host-controller/20190901-114958 config: i386-allmodconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-11) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/bridge/nwl-dsi/nwl-dsi.c:22:0: drivers/gpu/drm/bridge/nwl-dsi/nwl-dsi.c: In function 'nwl_dsi_read_packet': >> include/drm/drm_print.h:313:32: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka const unsigned int}' [-Wformat=] drm_dev_printk(dev, KERN_ERR, "*ERROR* " fmt, ##__VA_ARGS__) ^ >> drivers/gpu/drm/bridge/nwl-dsi/nwl-dsi.c:402:4: note: in expansion of macro 'DRM_DEV_ERROR' DRM_DEV_ERROR( ^~~~~~~~~~~~~ drivers/gpu/drm/bridge/nwl-dsi/nwl-dsi.c:404:41: note: format string is defined here "[%02X] Receive buffer too small: %lu (< %u)\n", ~~^ %u coccinelle warnings: (new ones prefixed by >>) >> drivers/gpu/drm/bridge/nwl-dsi/nwl-dsi.c:233:5-17: WARNING: Unsigned expression compared with zero: color_format < 0 vim +313 include/drm/drm_print.h 02c9656b2f0d69 Haneen Mohammed 2017-10-17 288 02c9656b2f0d69 Haneen Mohammed 2017-10-17 289 #define _DRM_PRINTK(once, level, fmt, ...) \ db87086492581c Joe Perches 2018-03-16 290 printk##once(KERN_##level "[" DRM_NAME "] " fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 291 02c9656b2f0d69 Haneen Mohammed 2017-10-17 292 #define DRM_INFO(fmt, ...) \ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 293 _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 294 #define DRM_NOTE(fmt, ...) \ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 295 _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 296 #define DRM_WARN(fmt, ...) \ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 297 _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 298 02c9656b2f0d69 Haneen Mohammed 2017-10-17 299 #define DRM_INFO_ONCE(fmt, ...) \ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 300 _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 301 #define DRM_NOTE_ONCE(fmt, ...) \ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 302 _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 303 #define DRM_WARN_ONCE(fmt, ...) \ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 304 _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 305 02c9656b2f0d69 Haneen Mohammed 2017-10-17 306 /** 02c9656b2f0d69 Haneen Mohammed 2017-10-17 307 * Error output. 02c9656b2f0d69 Haneen Mohammed 2017-10-17 308 * 091756bbb1a961 Haneen Mohammed 2017-10-17 309 * @dev: device pointer 091756bbb1a961 Haneen Mohammed 2017-10-17 310 * @fmt: printf() like format string. 02c9656b2f0d69 Haneen Mohammed 2017-10-17 311 */ 02c9656b2f0d69 Haneen Mohammed 2017-10-17 312 #define DRM_DEV_ERROR(dev, fmt, ...) \ db87086492581c Joe Perches 2018-03-16 @313 drm_dev_printk(dev, KERN_ERR, "*ERROR* " fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 314 #define DRM_ERROR(fmt, ...) \ 99a954874e7b9f Joe Perches 2018-03-13 315 drm_err(fmt, ##__VA_ARGS__) 02c9656b2f0d69 Haneen Mohammed 2017-10-17 316 :::::: The code at line 313 was first introduced by commit :::::: db87086492581c87f768b7d17d01308153ecffc1 drm: Reduce object size of DRM_DEV_<LEVEL> uses :::::: TO: Joe Perches <joe@xxxxxxxxxxx> :::::: CC: Daniel Vetter <daniel.vetter@xxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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