Re: [stable:linux-5.15.y 9126/9999] ERROR: modpost: "devm_drm_of_get_bridge" [drivers/gpu/drm/vc4/vc4.ko] undefined!

From: Greg Kroah-Hartman
Date: Thu Sep 01 2022 - 04:39:48 EST


On Thu, Sep 01, 2022 at 10:00:17AM +0200, Maxime Ripard wrote:
> On Thu, Sep 01, 2022 at 12:51:57PM +0800, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y
> > head: 1ded0ef2419e8f83a17d65594523ec3aeb2e3d0f
> > commit: 3d722c01d628d17a37cf2820195f15cfc9a6a332 [9126/9999] drm/vc4: Use of_device_get_match_data()
> > config: parisc-randconfig-c034-20220831 (https://download.01.org/0day-ci/archive/20220901/202209011256.zvBzxcpP-lkp@xxxxxxxxx/config)
> > compiler: hppa-linux-gcc (GCC) 12.1.0
> > 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/stable/linux-stable.git/commit/?id=3d722c01d628d17a37cf2820195f15cfc9a6a332
> > git remote add stable https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
> > git fetch --no-tags stable linux-5.15.y
> > git checkout 3d722c01d628d17a37cf2820195f15cfc9a6a332
> > # save the config file
> > mkdir build_dir && cp config build_dir/.config
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash
> >
> > If you fix the issue, kindly add following tag where applicable
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> >
> > All errors (new ones prefixed by >>, old ones prefixed by <<):
> >
> > >> ERROR: modpost: "devm_drm_of_get_bridge" [drivers/gpu/drm/vc4/vc4.ko] undefined!
>
> I think this is due to stable having backported 87ea95808d53 and
> a43dd76bacd0, but missing 59050d7838482

I see no such commit as "59050d7838482" in Linus's tree, what are you
referring to exactly here?

thanks,

greg k-h