Hi Randy. Thanks - I think (kidding, this has bugged of for a long time). On Thu, Jan 23, 2020 at 12:44:25AM -0800, Randy Dunlap wrote: > On 1/22/20 10:21 PM, Stephen Rothwell wrote: > > Hi all, > > > > Changes since 20200122: > > > > > on i386: > > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-rocktech-jh057n00900.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-raydium-rm68200.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-innolux-p079zca.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-ilitek-ili9881c.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-lvds.ko] undefined! > ERROR: "drm_panel_of_backlight" [drivers/gpu/drm/panel/panel-boe-himax8279d.ko] > > > Full randconfig file is attached. I tried reproducing with latest drm-misc-next - no luck. Can you check if you have: 8d6cb2f7fb90018d9e3efdc9bc95e6da213a352f drm/drm_panel: fix export of drm_panel_of_backlight, try #3 As we expect this to fix it for good. Maybe the patch has not hit the right tree and is thus not in -next. Sam