Hi Maxime, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20220622] [also build test WARNING on v5.19-rc3] [cannot apply to drm-misc/drm-misc-next drm-intel/for-linux-next drm-tip/drm-tip linus/master anholt/for-next v5.19-rc3 v5.19-rc2 v5.19-rc1] [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/intel-lab-lkp/linux/commits/Maxime-Ripard/drm-vc4-Fix-hotplug-for-vc4/20220622-223842 base: ac0ba5454ca85162c08dc429fef1999e077ca976 config: riscv-rv32_defconfig (https://download.01.org/0day-ci/archive/20220623/202206230352.n3jM0UCD-lkp@xxxxxxxxx/config) compiler: riscv32-linux-gcc (GCC) 11.3.0 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/intel-lab-lkp/linux/commit/241f292ab7ccd70b2f6259d1155de8d1bfdd5c9c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Maxime-Ripard/drm-vc4-Fix-hotplug-for-vc4/20220622-223842 git checkout 241f292ab7ccd70b2f6259d1155de8d1bfdd5c9c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/gpu/drm/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/gpu/drm/drm_encoder.c: In function 'drmm_encoder_init': >> drivers/gpu/drm/drm_encoder.c:269:9: warning: function 'drmm_encoder_init' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 269 | ret = __drm_encoder_init(dev, encoder, funcs, encoder_type, name, ap); | ^~~ vim +269 drivers/gpu/drm/drm_encoder.c 239 240 /** 241 * drmm_encoder_init - Initialize a preallocated encoder 242 * @dev: drm device 243 * @encoder: the encoder to init 244 * @funcs: callbacks for this encoder (optional) 245 * @encoder_type: user visible type of the encoder 246 * @name: printf style format string for the encoder name, or NULL for default name 247 * 248 * Initializes a preallocated encoder. Encoder should be subclassed as 249 * part of driver encoder objects. Cleanup is automatically handled 250 * through registering drm_encoder_cleanup() with drmm_add_action(). The 251 * encoder structure should be allocated with drmm_kzalloc(). 252 * 253 * The @drm_encoder_funcs.destroy hook must be NULL. 254 * 255 * Returns: 256 * Zero on success, error code on failure. 257 */ 258 int drmm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, 259 const struct drm_encoder_funcs *funcs, 260 int encoder_type, const char *name, ...) 261 { 262 va_list ap; 263 int ret; 264 265 if (WARN_ON(funcs && funcs->destroy)) 266 return -EINVAL; 267 268 va_start(ap, name); > 269 ret = __drm_encoder_init(dev, encoder, funcs, encoder_type, name, ap); 270 va_end(ap); 271 if (ret) 272 return ret; 273 274 ret = drmm_add_action_or_reset(dev, drmm_encoder_alloc_release, encoder); 275 if (ret) 276 return ret; 277 278 return 0; 279 } 280 EXPORT_SYMBOL(drmm_encoder_init); 281 -- 0-DAY CI Kernel Test Service https://01.org/lkp
