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Message-ID: <202311031119.NVzPwvI8-lkp@intel.com>
Date:   Fri, 3 Nov 2023 12:06:17 +0800
From:   kernel test robot <lkp@...el.com>
To:     Qing Zhang <zhangqing@...ngson.cn>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Huacai Chen <chenhuacai@...nel.org>
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.c:254:17:
 warning: 'dp_decide_lane_settings' accessing 4 bytes in a region of size 1

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bc3012f4e3a9765de81f454cb8f9bb16aafc6ff5
commit: 5aa4ac64e6add3e40d5049e31275b2822daf885d LoongArch: Add KASAN (Kernel Address Sanitizer) support
date:   8 weeks ago
config: loongarch-randconfig-002-20231102 (https://download.01.org/0day-ci/archive/20231103/202311031119.NVzPwvI8-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231103/202311031119.NVzPwvI8-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311031119.NVzPwvI8-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.c: In function 'perform_8b_10b_clock_recovery_sequence':
>> drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.c:254:17: warning: 'dp_decide_lane_settings' accessing 4 bytes in a region of size 1 [-Wstringop-overflow=]
     254 |                 dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     255 |                                 lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
         |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.c:254:17: note: referencing argument 4 of type 'union dpcd_training_lane[4]'
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.h:29,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.c:30:
   drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training.h:110:6: note: in a call to function 'dp_decide_lane_settings'
     110 | void dp_decide_lane_settings(
         |      ^~~~~~~~~~~~~~~~~~~~~~~


vim +/dp_decide_lane_settings +254 drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_8b_10b.c

630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  153  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  154  enum link_training_result perform_8b_10b_clock_recovery_sequence(
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  155  	struct dc_link *link,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  156  	const struct link_resource *link_res,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  157  	struct link_training_settings *lt_settings,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  158  	uint32_t offset)
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  159  {
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  160  	uint32_t retries_cr;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  161  	uint32_t retry_count;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  162  	uint32_t wait_time_microsec;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  163  	enum dc_lane_count lane_count = lt_settings->link_settings.lane_count;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  164  	union lane_status dpcd_lane_status[LANE_COUNT_DP_MAX];
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  165  	union lane_align_status_updated dpcd_lane_status_updated;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  166  	union lane_adjust dpcd_lane_adjust[LANE_COUNT_DP_MAX] = {0};
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  167  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  168  	retries_cr = 0;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  169  	retry_count = 0;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  170  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  171  	memset(&dpcd_lane_status, '\0', sizeof(dpcd_lane_status));
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  172  	memset(&dpcd_lane_status_updated, '\0',
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  173  	sizeof(dpcd_lane_status_updated));
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  174  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  175  	if (!link->ctx->dc->work_arounds.lt_early_cr_pattern)
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  176  		dp_set_hw_training_pattern(link, link_res, lt_settings->pattern_for_cr, offset);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  177  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  178  	/* najeeb - The synaptics MST hub can put the LT in
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  179  	* infinite loop by switching the VS
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  180  	*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  181  	/* between level 0 and level 1 continuously, here
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  182  	* we try for CR lock for LinkTrainingMaxCRRetry count*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  183  	while ((retries_cr < LINK_TRAINING_MAX_RETRY_COUNT) &&
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  184  		(retry_count < LINK_TRAINING_MAX_CR_RETRY)) {
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  185  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  186  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  187  		/* 1. call HWSS to set lane settings*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  188  		dp_set_hw_lane_settings(
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  189  				link,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  190  				link_res,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  191  				lt_settings,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  192  				offset);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  193  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  194  		/* 2. update DPCD of the receiver*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  195  		if (!retry_count)
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  196  			/* EPR #361076 - write as a 5-byte burst,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  197  			 * but only for the 1-st iteration.*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  198  			dpcd_set_lt_pattern_and_lane_settings(
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  199  					link,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  200  					lt_settings,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  201  					lt_settings->pattern_for_cr,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  202  					offset);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  203  		else
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  204  			dpcd_set_lane_settings(
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  205  					link,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  206  					lt_settings,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  207  					offset);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  208  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  209  		/* 3. wait receiver to lock-on*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  210  		wait_time_microsec = lt_settings->cr_pattern_time;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  211  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  212  		dp_wait_for_training_aux_rd_interval(
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  213  				link,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  214  				wait_time_microsec);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  215  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  216  		/* 4. Read lane status and requested drive
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  217  		* settings as set by the sink
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  218  		*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  219  		dp_get_lane_status_and_lane_adjust(
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  220  				link,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  221  				lt_settings,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  222  				dpcd_lane_status,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  223  				&dpcd_lane_status_updated,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  224  				dpcd_lane_adjust,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  225  				offset);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  226  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  227  		/* 5. check CR done*/
88c7ad91e378775 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c Srinivasan Shanmugam 2023-04-14  228  		if (dp_is_cr_done(lane_count, dpcd_lane_status)) {
88c7ad91e378775 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c Srinivasan Shanmugam 2023-04-14  229  			DC_LOG_HW_LINK_TRAINING("%s: Clock recovery OK\n", __func__);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  230  			return LINK_TRAINING_SUCCESS;
88c7ad91e378775 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c Srinivasan Shanmugam 2023-04-14  231  		}
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  232  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  233  		/* 6. max VS reached*/
d5a43956b73bd78 drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-15  234  		if ((link_dp_get_encoding_format(&lt_settings->link_settings) ==
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  235  				DP_8b_10b_ENCODING) &&
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  236  				dp_is_max_vs_reached(lt_settings))
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  237  			break;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  238  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  239  		/* 7. same lane settings*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  240  		/* Note: settings are the same for all lanes,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  241  		 * so comparing first lane is sufficient*/
d5a43956b73bd78 drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-15  242  		if ((link_dp_get_encoding_format(&lt_settings->link_settings) == DP_8b_10b_ENCODING) &&
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  243  				lt_settings->dpcd_lane_settings[0].bits.VOLTAGE_SWING_SET ==
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  244  						dpcd_lane_adjust[0].bits.VOLTAGE_SWING_LANE)
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  245  			retries_cr++;
d5a43956b73bd78 drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-15  246  		else if ((link_dp_get_encoding_format(&lt_settings->link_settings) == DP_128b_132b_ENCODING) &&
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  247  				lt_settings->dpcd_lane_settings[0].tx_ffe.PRESET_VALUE ==
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  248  						dpcd_lane_adjust[0].tx_ffe.PRESET_VALUE)
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  249  			retries_cr++;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  250  		else
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  251  			retries_cr = 0;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  252  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  253  		/* 8. update VS/PE/PC2 in lt_settings*/
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14 @254  		dp_decide_lane_settings(lt_settings, dpcd_lane_adjust,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  255  				lt_settings->hw_lane_settings, lt_settings->dpcd_lane_settings);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  256  		retry_count++;
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  257  	}
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  258  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  259  	if (retry_count >= LINK_TRAINING_MAX_CR_RETRY) {
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  260  		ASSERT(0);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  261  		DC_LOG_ERROR("%s: Link Training Error, could not get CR after %d tries. Possibly voltage swing issue",
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  262  			__func__,
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  263  			LINK_TRAINING_MAX_CR_RETRY);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  264  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  265  	}
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  266  
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  267  	return dp_get_cr_failure(lane_count, dpcd_lane_status);
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  268  }
630168a97314a8f drivers/gpu/drm/amd/display/dc/link/link_dp_training_8b_10b.c           Wenjing Liu          2022-12-14  269  

:::::: The code at line 254 was first introduced by commit
:::::: 630168a97314a8f6da9c09d73f5e78c3c1fe3eee drm/amd/display: move dp link training logic to link_dp_training

:::::: TO: Wenjing Liu <wenjing.liu@....com>
:::::: CC: Alex Deucher <alexander.deucher@....com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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