Hi Philipp, I love your patch! Perhaps something to improve:
[auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip linus/master v5.9-rc2 next-20200826] [cannot apply to tegra-drm/drm/tegra/for-next drm-exynos/exynos-drm-next drm/drm-next] [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/Philipp-Zabel/drm-add-drmm_encoder_alloc/20200826-203629 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: arm-randconfig-r001-20200826 (attached as .config) compiler: arm-linux-gnueabi-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): drivers/gpu/drm/drm_crtc.c: In function '__drm_crtc_init_with_planes': >> drivers/gpu/drm/drm_crtc.c:267:3: warning: function >> '__drm_crtc_init_with_planes' might be a candidate for 'gnu_printf' format >> attribute [-Wsuggest-attribute=format] 267 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | ^~~~ # https://github.com/0day-ci/linux/commit/236b7bc44ae0fdecc8e80c5aba0655ca14fdfb23 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Philipp-Zabel/drm-add-drmm_encoder_alloc/20200826-203629 git checkout 236b7bc44ae0fdecc8e80c5aba0655ca14fdfb23 vim +267 drivers/gpu/drm/drm_crtc.c 35f8cc3b9a92c66 Gustavo Padovan 2016-12-06 207 e954f77f6330028 Simon Ser 2020-05-21 208 /** e954f77f6330028 Simon Ser 2020-05-21 209 * DOC: standard CRTC properties e954f77f6330028 Simon Ser 2020-05-21 210 * e954f77f6330028 Simon Ser 2020-05-21 211 * DRM CRTCs have a few standardized properties: e954f77f6330028 Simon Ser 2020-05-21 212 * e954f77f6330028 Simon Ser 2020-05-21 213 * ACTIVE: e954f77f6330028 Simon Ser 2020-05-21 214 * Atomic property for setting the power state of the CRTC. When set to 1 e954f77f6330028 Simon Ser 2020-05-21 215 * the CRTC will actively display content. When set to 0 the CRTC will be e954f77f6330028 Simon Ser 2020-05-21 216 * powered off. There is no expectation that user-space will reset CRTC e954f77f6330028 Simon Ser 2020-05-21 217 * resources like the mode and planes when setting ACTIVE to 0. e954f77f6330028 Simon Ser 2020-05-21 218 * e954f77f6330028 Simon Ser 2020-05-21 219 * User-space can rely on an ACTIVE change to 1 to never fail an atomic e954f77f6330028 Simon Ser 2020-05-21 220 * test as long as no other property has changed. If a change to ACTIVE e954f77f6330028 Simon Ser 2020-05-21 221 * fails an atomic test, this is a driver bug. For this reason setting e954f77f6330028 Simon Ser 2020-05-21 222 * ACTIVE to 0 must not release internal resources (like reserved memory e954f77f6330028 Simon Ser 2020-05-21 223 * bandwidth or clock generators). e954f77f6330028 Simon Ser 2020-05-21 224 * e954f77f6330028 Simon Ser 2020-05-21 225 * Note that the legacy DPMS property on connectors is internally routed e954f77f6330028 Simon Ser 2020-05-21 226 * to control this property for atomic drivers. e954f77f6330028 Simon Ser 2020-05-21 227 * MODE_ID: e954f77f6330028 Simon Ser 2020-05-21 228 * Atomic property for setting the CRTC display timings. The value is the e954f77f6330028 Simon Ser 2020-05-21 229 * ID of a blob containing the DRM mode info. To disable the CRTC, e954f77f6330028 Simon Ser 2020-05-21 230 * user-space must set this property to 0. e954f77f6330028 Simon Ser 2020-05-21 231 * e954f77f6330028 Simon Ser 2020-05-21 232 * Setting MODE_ID to 0 will release reserved resources for the CRTC. e954f77f6330028 Simon Ser 2020-05-21 233 */ e954f77f6330028 Simon Ser 2020-05-21 234 236b7bc44ae0fde Philipp Zabel 2020-08-26 235 static int __drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, e13161af80c185e Matt Roper 2014-04-01 236 struct drm_plane *primary, fc1d3e44ef7c1db Matt Roper 2014-06-10 237 struct drm_plane *cursor, f98828769c8838f Ville Syrjälä 2015-12-09 238 const struct drm_crtc_funcs *funcs, 236b7bc44ae0fde Philipp Zabel 2020-08-26 239 const char *name, va_list ap) f453ba0460742ad Dave Airlie 2008-11-07 240 { 51fd371bbaf9401 Rob Clark 2013-11-19 241 struct drm_mode_config *config = &dev->mode_config; 6bfc56aa89f963b Ville Syrjälä 2012-03-13 242 int ret; 6bfc56aa89f963b Ville Syrjälä 2012-03-13 243 522cf91f30cb010 Benjamin Gaignard 2015-03-17 244 WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); 522cf91f30cb010 Benjamin Gaignard 2015-03-17 245 WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); 522cf91f30cb010 Benjamin Gaignard 2015-03-17 246 2a8d3eac3d6e116 Ville Syrjälä 2018-01-25 247 /* crtc index is used with 32bit bitmasks */ 2a8d3eac3d6e116 Ville Syrjälä 2018-01-25 248 if (WARN_ON(config->num_crtc >= 32)) 2a8d3eac3d6e116 Ville Syrjälä 2018-01-25 249 return -EINVAL; 2a8d3eac3d6e116 Ville Syrjälä 2018-01-25 250 ba1f665f161ce11 Haneen Mohammed 2018-05-25 251 WARN_ON(drm_drv_uses_atomic_modeset(dev) && ba1f665f161ce11 Haneen Mohammed 2018-05-25 252 (!funcs->atomic_destroy_state || ba1f665f161ce11 Haneen Mohammed 2018-05-25 253 !funcs->atomic_duplicate_state)); ba1f665f161ce11 Haneen Mohammed 2018-05-25 254 f453ba0460742ad Dave Airlie 2008-11-07 255 crtc->dev = dev; f453ba0460742ad Dave Airlie 2008-11-07 256 crtc->funcs = funcs; f453ba0460742ad Dave Airlie 2008-11-07 257 3b24f7d67581659 Daniel Vetter 2016-06-08 258 INIT_LIST_HEAD(&crtc->commit_list); 3b24f7d67581659 Daniel Vetter 2016-06-08 259 spin_lock_init(&crtc->commit_lock); 3b24f7d67581659 Daniel Vetter 2016-06-08 260 51fd371bbaf9401 Rob Clark 2013-11-19 261 drm_modeset_lock_init(&crtc->mutex); 2135ea7aafa26b6 Thierry Reding 2017-02-28 262 ret = drm_mode_object_add(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 6bfc56aa89f963b Ville Syrjälä 2012-03-13 263 if (ret) baf698b0496e93f Daniel Vetter 2014-11-12 264 return ret; f453ba0460742ad Dave Airlie 2008-11-07 265 fa3ab4c2113c74a Ville Syrjälä 2015-12-08 266 if (name) { fa3ab4c2113c74a Ville Syrjälä 2015-12-08 @267 crtc->name = kvasprintf(GFP_KERNEL, name, ap); fa3ab4c2113c74a Ville Syrjälä 2015-12-08 268 } else { fa3ab4c2113c74a Ville Syrjälä 2015-12-08 269 crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", fa3ab4c2113c74a Ville Syrjälä 2015-12-08 270 drm_num_crtcs(dev)); fa3ab4c2113c74a Ville Syrjälä 2015-12-08 271 } fa3ab4c2113c74a Ville Syrjälä 2015-12-08 272 if (!crtc->name) { 7c8f6d2577c7565 Dave Airlie 2016-04-15 273 drm_mode_object_unregister(dev, &crtc->base); fa3ab4c2113c74a Ville Syrjälä 2015-12-08 274 return -ENOMEM; fa3ab4c2113c74a Ville Syrjälä 2015-12-08 275 } fa3ab4c2113c74a Ville Syrjälä 2015-12-08 276 6d6003c4b613c93 Gustavo Padovan 2016-11-15 277 crtc->fence_context = dma_fence_context_alloc(1); 6d6003c4b613c93 Gustavo Padovan 2016-11-15 278 spin_lock_init(&crtc->fence_lock); 6d6003c4b613c93 Gustavo Padovan 2016-11-15 279 snprintf(crtc->timeline_name, sizeof(crtc->timeline_name), 6d6003c4b613c93 Gustavo Padovan 2016-11-15 280 "CRTC:%d-%s", crtc->base.id, crtc->name); 6d6003c4b613c93 Gustavo Padovan 2016-11-15 281 bffd9de02977025 Paulo Zanoni 2012-05-15 282 crtc->base.properties = &crtc->properties; bffd9de02977025 Paulo Zanoni 2012-05-15 283 51fd371bbaf9401 Rob Clark 2013-11-19 284 list_add_tail(&crtc->head, &config->crtc_list); 490d3d1b91201fd Chris Wilson 2016-05-27 285 crtc->index = config->num_crtc++; 6bfc56aa89f963b Ville Syrjälä 2012-03-13 286 e13161af80c185e Matt Roper 2014-04-01 287 crtc->primary = primary; fc1d3e44ef7c1db Matt Roper 2014-06-10 288 crtc->cursor = cursor; 7abc7d47510c75d Rob Clark 2016-11-05 289 if (primary && !primary->possible_crtcs) 6a52193bd0dd683 Ville Syrjälä 2018-06-26 290 primary->possible_crtcs = drm_crtc_mask(crtc); 7abc7d47510c75d Rob Clark 2016-11-05 291 if (cursor && !cursor->possible_crtcs) 6a52193bd0dd683 Ville Syrjälä 2018-06-26 292 cursor->possible_crtcs = drm_crtc_mask(crtc); e13161af80c185e Matt Roper 2014-04-01 293 9edbf1fa600a2ef Tomeu Vizoso 2016-10-06 294 ret = drm_crtc_crc_init(crtc); 9edbf1fa600a2ef Tomeu Vizoso 2016-10-06 295 if (ret) { 9edbf1fa600a2ef Tomeu Vizoso 2016-10-06 296 drm_mode_object_unregister(dev, &crtc->base); 9edbf1fa600a2ef Tomeu Vizoso 2016-10-06 297 return ret; 9edbf1fa600a2ef Tomeu Vizoso 2016-10-06 298 } 9edbf1fa600a2ef Tomeu Vizoso 2016-10-06 299 eab3bbeffd15212 Daniel Vetter 2015-01-22 300 if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { eab3bbeffd15212 Daniel Vetter 2015-01-22 301 drm_object_attach_property(&crtc->base, config->prop_active, 0); 955f3c334f0fb2b Daniel Stone 2015-05-25 302 drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); beaf5af48034c9e Gustavo Padovan 2016-11-16 303 drm_object_attach_property(&crtc->base, beaf5af48034c9e Gustavo Padovan 2016-11-16 304 config->prop_out_fence_ptr, 0); 1398958cfd8d331 Nicholas Kazlauskas 2018-10-04 305 drm_object_attach_property(&crtc->base, 1398958cfd8d331 Nicholas Kazlauskas 2018-10-04 306 config->prop_vrr_enabled, 0); eab3bbeffd15212 Daniel Vetter 2015-01-22 307 } eab3bbeffd15212 Daniel Vetter 2015-01-22 308 baf698b0496e93f Daniel Vetter 2014-11-12 309 return 0; f453ba0460742ad Dave Airlie 2008-11-07 310 } 236b7bc44ae0fde Philipp Zabel 2020-08-26 311 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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