[Intel-gfx] [PATCH v2 01/11] drm: Add __drm_atomic_helper_crtc_state_reset() & co.

kbuild test robot lkp at intel.com
Mon Dec 16 22:38:40 UTC 2019


Hi "José,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-intel/for-linux-next]
[cannot apply to drm-tip/drm-tip linus/master v5.5-rc2 next-20191213]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Jos-Roberto-de-Souza/drm-Add-__drm_atomic_helper_crtc_state_reset-co/20191211-182413
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
reproduce: make htmldocs

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

   WARNING: dot(1) not found, for better output quality install graphviz from http://www.graphviz.org
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   include/linux/w1.h:277: warning: Function parameter or member 'of_match_table' not described in 'w1_family'
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   drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c:1: warning: no structured comments found
   drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1: warning: no structured comments found
   drivers/gpio/gpiolib-of.c:92: warning: Excess function parameter 'dev' description in 'of_gpio_need_valid_mask'
   include/linux/i2c.h:337: warning: Function parameter or member 'init_irq' not described in 'i2c_client'
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   include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
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   include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs'
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   drivers/gpu/drm/drm_atomic_state_helper.c:240: warning: Excess function parameter 'plane_state' description in '__drm_atomic_helper_plane_state_reset'
   drivers/gpu/drm/drm_atomic_state_helper.c:385: warning: Excess function parameter 'conn__state' description in '__drm_atomic_helper_connector_state_reset'
>> drivers/gpu/drm/drm_atomic_state_helper.c:241: warning: Function parameter or member 'state' not described in '__drm_atomic_helper_plane_state_reset'
   drivers/gpu/drm/drm_atomic_state_helper.c:241: warning: Excess function parameter 'plane_state' description in '__drm_atomic_helper_plane_state_reset'
>> drivers/gpu/drm/drm_atomic_state_helper.c:386: warning: Function parameter or member 'conn_state' not described in '__drm_atomic_helper_connector_state_reset'
   drivers/gpu/drm/drm_atomic_state_helper.c:386: warning: Excess function parameter 'conn__state' description in '__drm_atomic_helper_connector_state_reset'
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vim +241 drivers/gpu/drm/drm_atomic_state_helper.c

9ef8a9dc4b2182 Daniel Vetter 2018-10-04  229  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  230  /**
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  231   * __drm_atomic_helper_plane_state_reset - resets plane state to default values
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  232   * @plane_state: atomic plane state, must not be NULL
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  233   * @plane: plane object, must not be NULL
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  234   *
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  235   * Initializes the newly allocated @plane_state with default
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  236   * values. This is useful for drivers that subclass the CRTC state.
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  237   */
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  238  void __drm_atomic_helper_plane_state_reset(struct drm_plane_state *state,
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  239  					   struct drm_plane *plane)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04 @240  {
9ef8a9dc4b2182 Daniel Vetter 2018-10-04 @241  	state->plane = plane;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  242  	state->rotation = DRM_MODE_ROTATE_0;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  243  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  244  	state->alpha = DRM_BLEND_ALPHA_OPAQUE;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  245  	state->pixel_blend_mode = DRM_MODE_BLEND_PREMULTI;
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  246  }
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  247  EXPORT_SYMBOL(__drm_atomic_helper_plane_state_reset);
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  248  
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  249  /**
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  250   * __drm_atomic_helper_plane_reset - reset state on plane
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  251   * @plane: drm plane
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  252   * @plane_state: plane state to assign
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  253   *
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  254   * Initializes the newly allocated @plane_state and assigns it to
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  255   * the &drm_crtc->state pointer of @plane, usually required when
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  256   * initializing the drivers or when called from the &drm_plane_funcs.reset
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  257   * hook.
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  258   *
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  259   * This is useful for drivers that subclass the plane state.
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  260   */
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  261  void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  262  				     struct drm_plane_state *plane_state)
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  263  {
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  264  	if (plane_state)
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  265  		__drm_atomic_helper_plane_state_reset(plane_state, plane);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  266  
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  267  	plane->state = plane_state;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  268  }
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  269  EXPORT_SYMBOL(__drm_atomic_helper_plane_reset);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  270  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  271  /**
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  272   * drm_atomic_helper_plane_reset - default &drm_plane_funcs.reset hook for planes
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  273   * @plane: drm plane
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  274   *
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  275   * Resets the atomic state for @plane by freeing the state pointer (which might
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  276   * be NULL, e.g. at driver load time) and allocating a new empty state object.
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  277   */
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  278  void drm_atomic_helper_plane_reset(struct drm_plane *plane)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  279  {
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  280  	if (plane->state)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  281  		__drm_atomic_helper_plane_destroy_state(plane->state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  282  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  283  	kfree(plane->state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  284  	plane->state = kzalloc(sizeof(*plane->state), GFP_KERNEL);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  285  	if (plane->state)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  286  		__drm_atomic_helper_plane_reset(plane, plane->state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  287  }
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  288  EXPORT_SYMBOL(drm_atomic_helper_plane_reset);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  289  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  290  /**
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  291   * __drm_atomic_helper_plane_duplicate_state - copy atomic plane state
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  292   * @plane: plane object
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  293   * @state: atomic plane state
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  294   *
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  295   * Copies atomic state from a plane's current state. This is useful for
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  296   * drivers that subclass the plane state.
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  297   */
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  298  void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane,
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  299  					       struct drm_plane_state *state)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  300  {
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  301  	memcpy(state, plane->state, sizeof(*state));
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  302  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  303  	if (state->fb)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  304  		drm_framebuffer_get(state->fb);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  305  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  306  	state->fence = NULL;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  307  	state->commit = NULL;
c75ff001f4fe21 Deepak Rawat  2018-12-21  308  	state->fb_damage_clips = NULL;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  309  }
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  310  EXPORT_SYMBOL(__drm_atomic_helper_plane_duplicate_state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  311  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  312  /**
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  313   * drm_atomic_helper_plane_duplicate_state - default state duplicate hook
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  314   * @plane: drm plane
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  315   *
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  316   * Default plane state duplicate hook for drivers which don't have their own
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  317   * subclassed plane state structure.
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  318   */
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  319  struct drm_plane_state *
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  320  drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  321  {
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  322  	struct drm_plane_state *state;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  323  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  324  	if (WARN_ON(!plane->state))
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  325  		return NULL;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  326  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  327  	state = kmalloc(sizeof(*state), GFP_KERNEL);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  328  	if (state)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  329  		__drm_atomic_helper_plane_duplicate_state(plane, state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  330  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  331  	return state;
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  332  }
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  333  EXPORT_SYMBOL(drm_atomic_helper_plane_duplicate_state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  334  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  335  /**
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  336   * __drm_atomic_helper_plane_destroy_state - release plane state
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  337   * @state: plane state object to release
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  338   *
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  339   * Releases all resources stored in the plane state without actually freeing
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  340   * the memory of the plane state. This is useful for drivers that subclass the
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  341   * plane state.
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  342   */
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  343  void __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  344  {
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  345  	if (state->fb)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  346  		drm_framebuffer_put(state->fb);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  347  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  348  	if (state->fence)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  349  		dma_fence_put(state->fence);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  350  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  351  	if (state->commit)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  352  		drm_crtc_commit_put(state->commit);
c75ff001f4fe21 Deepak Rawat  2018-12-21  353  
c75ff001f4fe21 Deepak Rawat  2018-12-21  354  	drm_property_blob_put(state->fb_damage_clips);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  355  }
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  356  EXPORT_SYMBOL(__drm_atomic_helper_plane_destroy_state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  357  
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  358  /**
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  359   * drm_atomic_helper_plane_destroy_state - default state destroy hook
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  360   * @plane: drm plane
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  361   * @state: plane state object to release
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  362   *
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  363   * Default plane state destroy hook for drivers which don't have their own
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  364   * subclassed plane state structure.
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  365   */
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  366  void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  367  					   struct drm_plane_state *state)
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  368  {
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  369  	__drm_atomic_helper_plane_destroy_state(state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  370  	kfree(state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  371  }
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  372  EXPORT_SYMBOL(drm_atomic_helper_plane_destroy_state);
9ef8a9dc4b2182 Daniel Vetter 2018-10-04  373  
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  374  /**
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  375   * __drm_atomic_helper_connector_state_reset - reset the connector state
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  376   * @conn__state: atomic connector state, must not be NULL
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  377   * @connector: connectotr object, must not be NULL
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  378   *
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  379   * Initializes the newly allocated @conn_state with default
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  380   * values. This is useful for drivers that subclass the connector state.
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  381   */
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  382  void
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  383  __drm_atomic_helper_connector_state_reset(struct drm_connector_state *conn_state,
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  384  					  struct drm_connector *connector)
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  385  {
2b3ff8c804f9ee Ville Syrjälä 2019-12-10 @386  	conn_state->connector = connector;
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  387  }
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  388  EXPORT_SYMBOL(__drm_atomic_helper_connector_state_reset);
2b3ff8c804f9ee Ville Syrjälä 2019-12-10  389  

:::::: The code at line 241 was first introduced by commit
:::::: 9ef8a9dc4b21821d6c397186462fb5e571786b0a drm: Extract drm_atomic_state_helper.[hc]

:::::: TO: Daniel Vetter <daniel.vetter at ffwll.ch>
:::::: CC: Daniel Vetter <daniel.vetter at ffwll.ch>

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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