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    SubjectRe: [PATCH 5.15 808/917] drm: fb_helper: improve CONFIG_FB dependency
    On Fri, Nov 19, 2021 at 08:50:05AM +0100, Jiri Slaby wrote:
    > On 15. 11. 21, 18:05, Greg Kroah-Hartman wrote:
    > > From: Arnd Bergmann <arnd@arndb.de>
    > >
    > > [ Upstream commit 9d6366e743f37d36ef69347924ead7bcc596076e ]
    >
    > Hi,
    >
    > this breaks build on openSUSE's armv7hl config:
    > $ wget -O .config https://raw.githubusercontent.com/openSUSE/kernel-source/stable/config/armv7hl/default
    > $ make -j168 CROSS_COMPILE=arm-suse-linux-gnueabi- ARCH=arm vmlinux
    > ...
    > LD .tmp_vmlinux.btf
    > arm-suse-linux-gnueabi-ld: drivers/gpu/drm/panel/panel-simple.o: in function
    > `panel_simple_probe':
    > drivers/gpu/drm/panel/panel-simple.c:803: undefined reference to
    > `drm_panel_dp_aux_backlight'
    > $ grep -E 'CONFIG_(DRM|FB|DRM_KMS_HELPER|DRM_FBDEV_EMULATION)\>' .config
    > CONFIG_DRM=y
    > CONFIG_DRM_KMS_HELPER=m
    > CONFIG_DRM_FBDEV_EMULATION=y
    > CONFIG_FB=y
    >
    > 5.16-rc1 builds just fine -- investigating why…

    Ok, will go revert that, thanks.

    greg k-h

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