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Date: Tue, 15 Nov 2022 04:00:41 +0800
From: kernel test robot <lkp@...el.com>
To: Hsin-Yi Wang <hsinyi@...omium.org>,
Sean Paul <seanpaul@...omium.org>,
Douglas Anderson <dianders@...omium.org>,
Robert Foss <robert.foss@...aro.org>
Cc: oe-kbuild-all@...ts.linux.dev,
Thomas Zimmermann <tzimmermann@...e.de>,
Allen Chen <allen.chen@....com.tw>,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v4 1/3] drm_bridge: register content protect property
Hi Hsin-Yi,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on linus/master v6.1-rc5 next-20221114]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Hsin-Yi-Wang/drm_bridge-register-content-protect-property/20221114-160627
base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link: https://lore.kernel.org/r/20221114080405.2426999-1-hsinyi%40chromium.org
patch subject: [PATCH v4 1/3] drm_bridge: register content protect property
config: i386-randconfig-m021-20221114
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/f6318b73e52e83f96d0f09275a836bee3f780cc6
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Hsin-Yi-Wang/drm_bridge-register-content-protect-property/20221114-160627
git checkout f6318b73e52e83f96d0f09275a836bee3f780cc6
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
ld: drivers/gpu/drm/drm_bridge_connector.o: in function `drm_bridge_connector_init':
>> drivers/gpu/drm/drm_bridge_connector.c:407: undefined reference to `drm_connector_attach_content_protection_property'
pahole: .tmp_vmlinux.btf: No such file or directory
.btf.vmlinux.bin.o: file not recognized: file format not recognized
vim +407 drivers/gpu/drm/drm_bridge_connector.c
310
311 /* -----------------------------------------------------------------------------
312 * Bridge Connector Initialisation
313 */
314
315 /**
316 * drm_bridge_connector_init - Initialise a connector for a chain of bridges
317 * @drm: the DRM device
318 * @encoder: the encoder where the bridge chain starts
319 *
320 * Allocate, initialise and register a &drm_bridge_connector with the @drm
321 * device. The connector is associated with a chain of bridges that starts at
322 * the @encoder. All bridges in the chain shall report bridge operation flags
323 * (&drm_bridge->ops) and bridge output type (&drm_bridge->type), and none of
324 * them may create a DRM connector directly.
325 *
326 * Returns a pointer to the new connector on success, or a negative error
327 * pointer otherwise.
328 */
329 struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
330 struct drm_encoder *encoder)
331 {
332 struct drm_bridge_connector *bridge_connector;
333 struct drm_connector *connector;
334 struct i2c_adapter *ddc = NULL;
335 struct drm_bridge *bridge, *panel_bridge = NULL;
336 int connector_type;
337 bool support_hdcp = false;
338
339 bridge_connector = kzalloc(sizeof(*bridge_connector), GFP_KERNEL);
340 if (!bridge_connector)
341 return ERR_PTR(-ENOMEM);
342
343 bridge_connector->encoder = encoder;
344
345 /*
346 * TODO: Handle doublescan_allowed, stereo_allowed and
347 * ycbcr_420_allowed.
348 */
349 connector = &bridge_connector->base;
350 connector->interlace_allowed = true;
351
352 /*
353 * Initialise connector status handling. First locate the furthest
354 * bridges in the pipeline that support HPD and output detection. Then
355 * initialise the connector polling mode, using HPD if available and
356 * falling back to polling if supported. If neither HPD nor output
357 * detection are available, we don't support hotplug detection at all.
358 */
359 connector_type = DRM_MODE_CONNECTOR_Unknown;
360 drm_for_each_bridge_in_chain(encoder, bridge) {
361 if (!bridge->interlace_allowed)
362 connector->interlace_allowed = false;
363
364 if (bridge->ops & DRM_BRIDGE_OP_EDID)
365 bridge_connector->bridge_edid = bridge;
366 if (bridge->ops & DRM_BRIDGE_OP_HPD)
367 bridge_connector->bridge_hpd = bridge;
368 if (bridge->ops & DRM_BRIDGE_OP_DETECT)
369 bridge_connector->bridge_detect = bridge;
370 if (bridge->ops & DRM_BRIDGE_OP_MODES)
371 bridge_connector->bridge_modes = bridge;
372
373 if (!drm_bridge_get_next_bridge(bridge))
374 connector_type = bridge->type;
375
376 if (bridge->ddc)
377 ddc = bridge->ddc;
378
379 if (drm_bridge_is_panel(bridge))
380 panel_bridge = bridge;
381
382 if (bridge->support_hdcp)
383 support_hdcp = true;
384 }
385
386 if (connector_type == DRM_MODE_CONNECTOR_Unknown) {
387 kfree(bridge_connector);
388 return ERR_PTR(-EINVAL);
389 }
390
391 drm_connector_init_with_ddc(drm, connector, &drm_bridge_connector_funcs,
392 connector_type, ddc);
393 drm_connector_helper_add(connector, &drm_bridge_connector_helper_funcs);
394
395 if (bridge_connector->bridge_hpd) {
396 connector->polled = DRM_CONNECTOR_POLL_HPD;
397 drm_bridge_connector_enable_hpd(connector);
398 }
399 else if (bridge_connector->bridge_detect)
400 connector->polled = DRM_CONNECTOR_POLL_CONNECT
401 | DRM_CONNECTOR_POLL_DISCONNECT;
402
403 if (panel_bridge)
404 drm_panel_bridge_set_orientation(connector, panel_bridge);
405
406 if (support_hdcp && IS_ENABLED(CONFIG_DRM_DISPLAY_HDCP_HELPER))
> 407 drm_connector_attach_content_protection_property(connector, true);
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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