[drm:drm-next-amd-dc-staging 8/9] drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:581:2: error: implicit declaration of function 'for_each_connector_in_state'

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tree:   git://people.freedesktop.org/~airlied/linux.git drm-next-amd-dc-staging
head:   e7b8e99bed73e9c42f1c074ad6009cb59a79bd52
commit: b9e56e41e0c55c2b2ab5919c5e167faa4200b083 [8/9] Merge branch 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux into drm-next
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout b9e56e41e0c55c2b2ab5919c5e167faa4200b083
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

Note: the drm/drm-next-amd-dc-staging HEAD e7b8e99bed73e9c42f1c074ad6009cb59a79bd52 builds fine.
      It only hurts bisectibility.

All error/warnings (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_find_first_crct_matching_connector':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:581:2: error: implicit declaration of function 'for_each_connector_in_state' [-Werror=implicit-function-declaration]
     for_each_connector_in_state(
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:585:6: error: expected ';' before '{' token
      i) {
         ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:579:19: warning: unused variable 'crtc_from_state' [-Wunused-variable]
     struct drm_crtc *crtc_from_state;
                      ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_display_resume':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:655:2: error: implicit declaration of function 'for_each_crtc_in_state' [-Werror=implicit-function-declaration]
     for_each_crtc_in_state(adev->dm.cached_state, crtc, crtc_state, i)
     ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:656:4: error: expected ';' before 'crtc_state'
       crtc_state->active_changed = true;
       ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_commit_planes':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3893:2: error: implicit declaration of function 'for_each_plane_in_state' [-Werror=implicit-function-declaration]
     for_each_plane_in_state(state, plane, old_plane_state, i) {
     ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3893:60: error: expected ';' before '{' token
     for_each_plane_in_state(state, plane, old_plane_state, i) {
                                                               ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3890:16: warning: unused variable 'flags' [-Wunused-variable]
     unsigned long flags;
                   ^~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3889:6: warning: unused variable 'planes_count' [-Wunused-variable]
     int planes_count = 0;
         ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3888:24: warning: unused variable 'acrtc_state' [-Wunused-variable]
     struct dm_crtc_state *acrtc_state = to_dm_crtc_state(pcrtc->state);
                           ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3887:22: warning: unused variable 'acrtc_attach' [-Wunused-variable]
     struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
                         ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3886:25: warning: unused variable 'plane_states_constructed' [-Wunused-variable]
     struct dc_plane_state *plane_states_constructed[MAX_SURFACES];
                            ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3885:26: warning: unused variable 'dc_stream_attach' [-Wunused-variable]
     struct dc_stream_state *dc_stream_attach;
                             ^~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_commit':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3990:52: error: expected ';' before '{' token
     for_each_crtc_in_state(state, crtc, new_state, i) {
                                                       ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3980:24: warning: unused variable 'adev' [-Wunused-variable]
     struct amdgpu_device *adev = dev->dev_private;
                           ^~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_commit_tail':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4027:57: error: expected ';' before '{' token
     for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
                                                            ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4154:67: error: expected ';' before '{' token
     for_each_connector_in_state(state, connector, old_conn_state, i) {
                                                                      ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4221:57: error: expected ';' before '{' token
     for_each_crtc_in_state(state, crtc, old_crtc_state, i) {
                                                            ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4020:24: warning: unused variable 'old_acrtc_state' [-Wunused-variable]
     struct dm_crtc_state *old_acrtc_state, *new_acrtc_state;
                           ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4016:16: warning: unused variable 'flags' [-Wunused-variable]
     unsigned long flags;
                   ^~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4015:26: warning: unused variable 'new_stream' [-Wunused-variable]
     struct dc_stream_state *new_stream = NULL;
                             ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4014:22: warning: unused variable 'new_crtcs' [-Wunused-variable]
     struct amdgpu_crtc *new_crtcs[MAX_STREAMS];
                         ^~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4012:26: warning: unused variable 'pcrtc' [-Wunused-variable]
     struct drm_crtc *crtc, *pcrtc;
                             ^~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4011:11: warning: unused variable 'new_crtcs_count' [-Wunused-variable]
     uint32_t new_crtcs_count = 0;
              ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4010:14: warning: unused variable 'j' [-Wunused-variable]
     uint32_t i, j;
                 ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4008:33: warning: unused variable 'dm' [-Wunused-variable]
     struct amdgpu_display_manager *dm = &adev->dm;
                                    ^~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'dm_update_crtcs_state':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4393:53: error: expected ';' before '{' token
     for_each_crtc_in_state(state, crtc, crtc_state, i) {
                                                        ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4521:1: warning: label 'fail' defined but not used [-Wunused-label]
    fail:
    ^~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4387:26: warning: unused variable 'dm_state' [-Wunused-variable]
     struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
                             ^~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4386:42: warning: unused variable 'new_acrtc_state' [-Wunused-variable]
     struct dm_crtc_state *old_acrtc_state, *new_acrtc_state;
                                             ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4386:24: warning: unused variable 'old_acrtc_state' [-Wunused-variable]
     struct dm_crtc_state *old_acrtc_state, *new_acrtc_state;
                           ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_check':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4677:53: error: expected ';' before '{' token
     for_each_crtc_in_state(state, crtc, crtc_state, i) {
                                                        ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4723:63: error: expected ';' before '{' token
     for_each_connector_in_state(state, connector, conn_state, i) {
                                                                  ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_find_first_crct_matching_connector':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:596:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_commit':
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4001:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
   At top level:
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4331:12: warning: 'do_aquire_global_lock' defined but not used [-Wunused-function]
    static int do_aquire_global_lock(
               ^~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3876:13: warning: 'amdgpu_dm_commit_planes' defined but not used [-Wunused-function]
    static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
                ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3791:13: warning: 'amdgpu_dm_do_flip' defined but not used [-Wunused-function]
    static void amdgpu_dm_do_flip(
                ^~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3711:13: warning: 'handle_cursor_update' defined but not used [-Wunused-function]
    static void handle_cursor_update(
                ^~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3653:13: warning: 'remove_stream' defined but not used [-Wunused-function]
    static void remove_stream(
                ^~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3635:13: warning: 'is_scaling_state_different' defined but not used [-Wunused-function]
    static bool is_scaling_state_different(
                ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3605:13: warning: 'manage_dm_interrupts' defined but not used [-Wunused-function]
    static void manage_dm_interrupts(
                ^~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:2310:32: warning: 'create_stream_for_sink' defined but not used [-Wunused-function]
    static struct dc_stream_state *create_stream_for_sink(
                                   ^~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:1663:13: warning: 'modereset_required' defined but not used [-Wunused-function]
    static bool modereset_required(struct drm_crtc_state *crtc_state)
                ^~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/for_each_connector_in_state +581 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c

4562236b3b Harry Wentland    2017-09-12  570  
c84dec2fe8 Harry Wentland    2017-09-05  571  struct amdgpu_dm_connector *amdgpu_dm_find_first_crct_matching_connector(
4562236b3b Harry Wentland    2017-09-12  572  	struct drm_atomic_state *state,
4562236b3b Harry Wentland    2017-09-12  573  	struct drm_crtc *crtc,
4562236b3b Harry Wentland    2017-09-12  574  	bool from_state_var)
4562236b3b Harry Wentland    2017-09-12  575  {
4562236b3b Harry Wentland    2017-09-12  576  	uint32_t i;
4562236b3b Harry Wentland    2017-09-12  577  	struct drm_connector_state *conn_state;
4562236b3b Harry Wentland    2017-09-12  578  	struct drm_connector *connector;
4562236b3b Harry Wentland    2017-09-12 @579  	struct drm_crtc *crtc_from_state;
4562236b3b Harry Wentland    2017-09-12  580  
4562236b3b Harry Wentland    2017-09-12 @581  	for_each_connector_in_state(
4562236b3b Harry Wentland    2017-09-12  582  		state,
4562236b3b Harry Wentland    2017-09-12  583  		connector,
4562236b3b Harry Wentland    2017-09-12  584  		conn_state,
4562236b3b Harry Wentland    2017-09-12 @585  		i) {
4562236b3b Harry Wentland    2017-09-12  586  		crtc_from_state =
4562236b3b Harry Wentland    2017-09-12  587  			from_state_var ?
4562236b3b Harry Wentland    2017-09-12  588  				conn_state->crtc :
4562236b3b Harry Wentland    2017-09-12  589  				connector->state->crtc;
4562236b3b Harry Wentland    2017-09-12  590  
4562236b3b Harry Wentland    2017-09-12  591  		if (crtc_from_state == crtc)
c84dec2fe8 Harry Wentland    2017-09-05  592  			return to_amdgpu_dm_connector(connector);
4562236b3b Harry Wentland    2017-09-12  593  	}
4562236b3b Harry Wentland    2017-09-12  594  
4562236b3b Harry Wentland    2017-09-12  595  	return NULL;
4562236b3b Harry Wentland    2017-09-12 @596  }
4562236b3b Harry Wentland    2017-09-12  597  
4562236b3b Harry Wentland    2017-09-12  598  static int dm_resume(void *handle)
4562236b3b Harry Wentland    2017-09-12  599  {
4562236b3b Harry Wentland    2017-09-12  600  	struct amdgpu_device *adev = handle;
4562236b3b Harry Wentland    2017-09-12  601  	struct amdgpu_display_manager *dm = &adev->dm;
4562236b3b Harry Wentland    2017-09-12  602  
4562236b3b Harry Wentland    2017-09-12  603  	/* power on hardware */
4562236b3b Harry Wentland    2017-09-12  604  	dc_set_power_state(
4562236b3b Harry Wentland    2017-09-12  605  		dm->dc,
a36214858c Andrey Grodzovsky 2017-04-20  606  		DC_ACPI_CM_POWER_STATE_D0
a36214858c Andrey Grodzovsky 2017-04-20  607  		);
4562236b3b Harry Wentland    2017-09-12  608  
4562236b3b Harry Wentland    2017-09-12  609  	return 0;
4562236b3b Harry Wentland    2017-09-12  610  }
4562236b3b Harry Wentland    2017-09-12  611  
4562236b3b Harry Wentland    2017-09-12  612  int amdgpu_dm_display_resume(struct amdgpu_device *adev)
4562236b3b Harry Wentland    2017-09-12  613  {
4562236b3b Harry Wentland    2017-09-12  614  	struct drm_device *ddev = adev->ddev;
4562236b3b Harry Wentland    2017-09-12  615  	struct amdgpu_display_manager *dm = &adev->dm;
c84dec2fe8 Harry Wentland    2017-09-05  616  	struct amdgpu_dm_connector *aconnector;
4562236b3b Harry Wentland    2017-09-12  617  	struct drm_connector *connector;
4562236b3b Harry Wentland    2017-09-12  618  	struct drm_crtc *crtc;
a36214858c Andrey Grodzovsky 2017-04-20  619  	struct drm_crtc_state *crtc_state;
a36214858c Andrey Grodzovsky 2017-04-20  620  	int ret = 0;
a36214858c Andrey Grodzovsky 2017-04-20  621  	int i;
4562236b3b Harry Wentland    2017-09-12  622  
4562236b3b Harry Wentland    2017-09-12  623  	/* program HPD filter */
4562236b3b Harry Wentland    2017-09-12  624  	dc_resume(dm->dc);
4562236b3b Harry Wentland    2017-09-12  625  
4562236b3b Harry Wentland    2017-09-12  626  	/* On resume we need to  rewrite the MSTM control bits to enamble MST*/
4562236b3b Harry Wentland    2017-09-12  627  	s3_handle_mst(ddev, false);
4562236b3b Harry Wentland    2017-09-12  628  
4562236b3b Harry Wentland    2017-09-12  629  	/*
4562236b3b Harry Wentland    2017-09-12  630  	 * early enable HPD Rx IRQ, should be done before set mode as short
4562236b3b Harry Wentland    2017-09-12  631  	 * pulse interrupts are used for MST
4562236b3b Harry Wentland    2017-09-12  632  	 */
4562236b3b Harry Wentland    2017-09-12  633  	amdgpu_dm_irq_resume_early(adev);
4562236b3b Harry Wentland    2017-09-12  634  
4562236b3b Harry Wentland    2017-09-12  635  	/* Do detection*/
4562236b3b Harry Wentland    2017-09-12  636  	list_for_each_entry(connector,
4562236b3b Harry Wentland    2017-09-12  637  			&ddev->mode_config.connector_list, head) {
c84dec2fe8 Harry Wentland    2017-09-05  638  		aconnector = to_amdgpu_dm_connector(connector);
4562236b3b Harry Wentland    2017-09-12  639  
4562236b3b Harry Wentland    2017-09-12  640  		/*
4562236b3b Harry Wentland    2017-09-12  641  		 * this is the case when traversing through already created
4562236b3b Harry Wentland    2017-09-12  642  		 * MST connectors, should be skipped
4562236b3b Harry Wentland    2017-09-12  643  		 */
4562236b3b Harry Wentland    2017-09-12  644  		if (aconnector->mst_port)
4562236b3b Harry Wentland    2017-09-12  645  			continue;
4562236b3b Harry Wentland    2017-09-12  646  
03ea364c8e Arindam Nath      2017-04-26  647  		mutex_lock(&aconnector->hpd_lock);
8f38b66c82 Hersen Wu         2017-09-11  648  		dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
4562236b3b Harry Wentland    2017-09-12  649  		aconnector->dc_sink = NULL;
4562236b3b Harry Wentland    2017-09-12  650  		amdgpu_dm_update_connector_after_detect(aconnector);
03ea364c8e Arindam Nath      2017-04-26  651  		mutex_unlock(&aconnector->hpd_lock);
4562236b3b Harry Wentland    2017-09-12  652  	}
4562236b3b Harry Wentland    2017-09-12  653  
a36214858c Andrey Grodzovsky 2017-04-20  654  	/* Force mode set in atomic comit */
a36214858c Andrey Grodzovsky 2017-04-20 @655  	for_each_crtc_in_state(adev->dm.cached_state, crtc, crtc_state, i)
a36214858c Andrey Grodzovsky 2017-04-20 @656  			crtc_state->active_changed = true;
a36214858c Andrey Grodzovsky 2017-04-20  657  
a36214858c Andrey Grodzovsky 2017-04-20  658  	ret = drm_atomic_helper_resume(ddev, adev->dm.cached_state);
4562236b3b Harry Wentland    2017-09-12  659  
0a214e2fb6 Andrey Grodzovsky 2017-07-13  660  	drm_atomic_state_put(adev->dm.cached_state);
0a214e2fb6 Andrey Grodzovsky 2017-07-13  661  	adev->dm.cached_state = NULL;
0a214e2fb6 Andrey Grodzovsky 2017-07-13  662  
9faa423716 Andrey Grodzovsky 2017-03-31  663  	amdgpu_dm_irq_resume_late(adev);
4562236b3b Harry Wentland    2017-09-12  664  
4562236b3b Harry Wentland    2017-09-12  665  	return ret;
4562236b3b Harry Wentland    2017-09-12  666  }
4562236b3b Harry Wentland    2017-09-12  667  

:::::: The code at line 581 was first introduced by commit
:::::: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c drm/amd/dc: Add dc display driver (v2)

:::::: TO: Harry Wentland <harry.wentland@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>

---
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