linux-kernel - Re: ld.lld: error: undefined symbol: drm_gem_fb_get

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Message-ID: <CACRpkdYoesPenQizTc6_MRZ14THBSFwyHb7oWJdR+CYYiJYYpQ@mail.gmail.com>
Date:   Fri, 26 Aug 2022 10:26:43 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     kernel test robot <lkp@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Noralf Trønnes <noralf@...nnes.org>,
        Douglas Anderson <dianders@...omium.org>
Subject: Re: ld.lld: error: undefined symbol: drm_gem_fb_get_obj

On Mon, Aug 22, 2022 at 9:27 AM kernel test robot <lkp@...el.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   1c23f9e627a7b412978b4e852793c5e3c3efc555
> commit: 57f6190a60ecc19f1ddddac0d7ea6524229271a9 drm/panel: ws2401: Add driver for WideChips WS2401
> date:   1 year, 1 month ago
> config: x86_64-randconfig-a002-20220822 (https://download.01.org/0day-ci/archive/20220822/202208221506.0Lo051G4-lkp@intel.com/config)
> compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
> 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
>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=57f6190a60ecc19f1ddddac0d7ea6524229271a9
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 57f6190a60ecc19f1ddddac0d7ea6524229271a9
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>):
>
> >> ld.lld: error: undefined symbol: drm_gem_fb_get_obj
>    >>> referenced by drm_mipi_dbi.c:203 (drivers/gpu/drm/drm_mipi_dbi.c:203)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_buf_copy) in archive drivers/built-in.a
>    >>> referenced by drm_mipi_dbi.c:258 (drivers/gpu/drm/drm_mipi_dbi.c:258)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_fb_dirty) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_fb_swab
>    >>> referenced by drm_mipi_dbi.c:219 (drivers/gpu/drm/drm_mipi_dbi.c:219)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_buf_copy) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_atomic_helper_connector_destroy_state
>    >>> referenced by drm_mipi_dbi.c
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_connector_funcs) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_gem_fb_create_with_dirty
>    >>> referenced by drm_mipi_dbi.c
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_mode_config_funcs) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_atomic_helper_check
>    >>> referenced by drm_mipi_dbi.c
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_mode_config_funcs) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_atomic_helper_commit
>    >>> referenced by drm_mipi_dbi.c
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_mode_config_funcs) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_fb_xrgb8888_to_rgb565
>    >>> referenced by drm_mipi_dbi.c:224 (drivers/gpu/drm/drm_mipi_dbi.c:224)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_buf_copy) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_fb_memcpy
>    >>> referenced by drm_mipi_dbi.c:221 (drivers/gpu/drm/drm_mipi_dbi.c:221)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_buf_copy) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_atomic_helper_damage_merged
>    >>> referenced by drm_mipi_dbi.c:318 (drivers/gpu/drm/drm_mipi_dbi.c:318)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_pipe_update) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_simple_display_pipe_init
>    >>> referenced by drm_mipi_dbi.c:529 (drivers/gpu/drm/drm_mipi_dbi.c:529)
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_dev_init_with_formats) in archive drivers/built-in.a
> --
> >> ld.lld: error: undefined symbol: drm_atomic_helper_connector_reset
>    >>> referenced by drm_mipi_dbi.c
>    >>>               gpu/drm/drm_mipi_dbi.o:(mipi_dbi_connector_funcs) in archive drivers/built-in.a

I don't understand this error report, please robot, analyze further and come
back with details on what needs to be fixed.

Yours,
Linus Walleij