linux-kernel - ld.lld: error: undefined symbol: rcar_lvds_is

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Date:   Tue, 16 Nov 2021 04:03:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Robert Foss <robert.foss@...aro.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Dave Airlie <airlied@...hat.com>
Subject: ld.lld: error: undefined symbol: rcar_lvds_is_connected

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8ab774587903771821b59471cc723bba6d893942
commit: 797d72ce8e0f8fa8a808cb189b5411046432cfd3 Merge tag 'drm-misc-next-2021-10-06' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
date:   5 weeks ago
config: arm64-randconfig-r014-20211115 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c3dddeeafb529e769cde87bd29ef6271ac6bfa5c)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=797d72ce8e0f8fa8a808cb189b5411046432cfd3
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 797d72ce8e0f8fa8a808cb189b5411046432cfd3
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: rcar_lvds_is_connected
   >>> referenced by rcar_du_encoder.c
   >>> gpu/drm/rcar-du/rcar_du_encoder.o:(rcar_du_encoder_init) in archive drivers/built-in.a

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (38883 bytes)