linux-kernel - [kbingham-rcar:kbingham/drm-misc/next/sn65dsi86/hpd 11/15] ERROR: modpost: "drm_atomic_helper_bridge_dsi_input_bus_fmt" [drivers/gpu/drm/bridge/parade-ps8640.ko] undefined!

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Message-ID: <202203211043.tkkRnByV-lkp@intel.com>
Date:   Mon, 21 Mar 2022 10:31:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sam Ravnborg <sam@...nborg.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Subject: [kbingham-rcar:kbingham/drm-misc/next/sn65dsi86/hpd 11/15] ERROR:
 modpost: "drm_atomic_helper_bridge_dsi_input_bus_fmt"
 [drivers/gpu/drm/bridge/parade-ps8640.ko] undefined!

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git kbingham/drm-misc/next/sn65dsi86/hpd
head:   b55ca0e75f467b5c011ef8bfbcff0a2234cf9695
commit: e10c501b6016d478e18c24982e9afb0fa978e896 [11/15] drm/bridge: ps8640: plug atomic_get_input_bus_fmts
config: x86_64-randconfig-c022-20220321 (https://download.01.org/0day-ci/archive/20220321/202203211043.tkkRnByV-lkp@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git/commit/?id=e10c501b6016d478e18c24982e9afb0fa978e896
        git remote add kbingham-rcar https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git
        git fetch --no-tags kbingham-rcar kbingham/drm-misc/next/sn65dsi86/hpd
        git checkout e10c501b6016d478e18c24982e9afb0fa978e896
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 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 >>, old ones prefixed by <<):

>> ERROR: modpost: "drm_atomic_helper_bridge_dsi_input_bus_fmt" [drivers/gpu/drm/bridge/parade-ps8640.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp