linux-kernel - drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c:163: undefined reference to `drm_dp_aux

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Message-ID: <202502082327.2Fbfy14C-lkp@intel.com>
Date: Sat, 8 Feb 2025 23:43:32 +0800
From: kernel test robot <lkp@...el.com>
To: Baihan Li <libaihan@...wei.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Yongbang Shi <shiyongbang@...wei.com>,
	Tian Tao <tiantao6@...ilicon.com>
Subject: drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c:163: undefined reference
 to `drm_dp_aux_init'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8f6629c004b193d23612641c3607e785819e97ab
commit: 057e77972556aed4a0f1eed7eeb85024d0a22ba1 drm/hisilicon/hibmc: add dp aux in hibmc drivers
date:   5 weeks ago
config: x86_64-randconfig-r063-20250208 (https://download.01.org/0day-ci/archive/20250208/202502082327.2Fbfy14C-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082327.2Fbfy14C-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/202502082327.2Fbfy14C-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: vmlinux.o: in function `hibmc_dp_aux_init':
>> drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c:163: undefined reference to `drm_dp_aux_init'


vim +163 drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c

   153	
   154	void hibmc_dp_aux_init(struct hibmc_dp_dev *dp)
   155	{
   156		hibmc_dp_reg_write_field(dp, HIBMC_DP_AUX_REQ, HIBMC_DP_CFG_AUX_SYNC_LEN_SEL, 0x0);
   157		hibmc_dp_reg_write_field(dp, HIBMC_DP_AUX_REQ, HIBMC_DP_CFG_AUX_TIMER_TIMEOUT, 0x1);
   158		hibmc_dp_reg_write_field(dp, HIBMC_DP_AUX_REQ, HIBMC_DP_CFG_AUX_MIN_PULSE_NUM,
   159					 HIBMC_DP_MIN_PULSE_NUM);
   160	
   161		dp->aux.transfer = hibmc_dp_aux_xfer;
   162		dp->aux.is_remote = 0;
 > 163		drm_dp_aux_init(&dp->aux);

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