On 11/22/2022 11:17 PM, Biju Das wrote:
Hi kernel test robot,
Subject: [linux-next:master 5636/9540] ld.lld: error: undefined symbol:
drm_of_get_data_lanes_count_ep
tree:
head: 771a207d1ee9f38da8c0cee1412228f18b900bac
commit: 7a043f978ed1433bddb088a732e9bb91501ebd76 [5636/9540] drm: rcar-
du: Add RZ/G2L DSI driver
config: arm64-randconfig-r026-20221122
compiler: clang version 16.0.0
reproduce (this is a W=1 build):
wget
-O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
#
git remote add linux-next
git fetch --no-tags linux-next master
git checkout 7a043f978ed1433bddb088a732e9bb91501ebd76
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1
O=build_dir ARCH=arm64 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 >>):
ld.lld: error: undefined symbol: drm_of_get_data_lanes_count_ep
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_probe) in archive vmlinux.a
--
ld.lld: error: undefined symbol: drm_bridge_attach
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_attach) in archive vmlinux.a
--
ld.lld: error: undefined symbol:
drm_atomic_get_new_connector_for_encoder
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_atomic_enable) in archive vmlinux.a
--
ld.lld: error: undefined symbol: devm_drm_of_get_bridge
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_host_attach) in archive vmlinux.a
--
ld.lld: error: undefined symbol: drm_bridge_add
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_host_attach) in archive vmlinux.a
--
ld.lld: error: undefined symbol: drm_bridge_remove
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_host_detach) in archive vmlinux.a
--
ld.lld: error: undefined symbol:
drm_atomic_helper_bridge_duplicate_state
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_bridge_ops) in archive vmlinux.a
--
ld.lld: error: undefined symbol:
drm_atomic_helper_bridge_destroy_state
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_bridge_ops) in archive vmlinux.a
--
ld.lld: error: undefined symbol: drm_atomic_helper_bridge_reset
>>> referenced by rzg2l_mipi_dsi.c
>>> drivers/gpu/drm/rcar-
du/rzg2l_mipi_dsi.o:(rzg2l_mipi_dsi_bridge_ops) in archive vmlinux.a
I was able to reproduce the issue and the same fix[1], will fix the issue
here for clang compiler as well. Can you please apply [1] to avoid
repeatedly sending the same issue for different compilers on the kernel test robot?
Hi Biju,
Thanks for your advice, we'll add it to ignore list.
Best Regards,
Rong Chen
[1] https://lore.kernel.org/linux-renesas-soc/Y3wVLU01mHp2zozI@xxxxxxxxxxxxxxxxxxxxxxxxxx/T/#t
Cheers,
Biju