2018-04-03 7:34 GMT+02:00 Oliver O'Halloran <oohall@xxxxxxxxx>: > Commit cc6b741c6f63 ("drm: sti: remove useless fields from vtg > structure") reworked some code inside of this driver and made it select > CONFIG_OF. This results in the entire OF layer being enabled when > building an allmodconfig on ia64. OF on ia64 is completely unsupported > so this isn't a great state of affairs. > > The 0day robot noticed a link-time failure on ia64 caused by > using of_node_to_nid() in an otherwise unrelated driver. The > generic fallback for of_node_to_nid() only exists when: > > defined(CONFIG_OF) && defined(CONFIG_NUMA) == false > > Since CONFIG_NUMA is usually selected for IA64 we get the link failure. > Fix this by making the driver depend on OF rather than selecting it, > odds are that was the original intent. > > Link: https://lists.01.org/pipermail/kbuild-all/2018-March/045172.html > Fixes: cc6b741c6f63 ("drm: sti: remove useless fields from vtg structure") > Cc: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx> > Cc: Vincent Abriou <vincent.abriou@xxxxxx> > Cc: David Airlie <airlied@xxxxxxxx> > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx > Cc: linux-ia64@xxxxxxxxxxxxxxx > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Oliver O'Halloran <oohall@xxxxxxxxx> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx> > --- > Cc`ed to stable since the ia64 guys might want it backported. I'm not > bothered if it just goes into mainline. > --- > drivers/gpu/drm/sti/Kconfig | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/sti/Kconfig b/drivers/gpu/drm/sti/Kconfig > index cca4b3c9aeb5..1963cc1b1cc5 100644 > --- a/drivers/gpu/drm/sti/Kconfig > +++ b/drivers/gpu/drm/sti/Kconfig > @@ -1,6 +1,6 @@ > config DRM_STI > tristate "DRM Support for STMicroelectronics SoC stiH4xx Series" > - depends on DRM && (ARCH_STI || ARCH_MULTIPLATFORM) > + depends on OF && DRM && (ARCH_STI || ARCH_MULTIPLATFORM) > select RESET_CONTROLLER > select DRM_KMS_HELPER > select DRM_GEM_CMA_HELPER > @@ -8,6 +8,5 @@ config DRM_STI > select DRM_PANEL > select FW_LOADER > select SND_SOC_HDMI_CODEC if SND_SOC > - select OF > help > Choose this option to enable DRM on STM stiH4xx chipset > -- > 2.9.5 >