ERROR: modpost: "devm_drm_of_get_bridge" [drivers/gpu/drm/bridge/aux-bridge.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c1f10ac840caced7a9f717d4170dcc14b3fac076
commit: c5d296bad640b190c52ef7508114d70e971a4bba usb: typec: nb7vpq904m: switch to DRM_AUX_BRIDGE
date:   3 months ago
config: riscv-randconfig-r064-20240311 (https://download.01.org/0day-ci/archive/20240317/202403170446.90iKtaVS-lkp@xxxxxxxxx/config)
compiler: riscv64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240317/202403170446.90iKtaVS-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403170446.90iKtaVS-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>, old ones prefixed by <<):

WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/locking/locktorture.o
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/rcu/rcutorture.o
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/rcu/rcuscale.o
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/rcu/refscale.o
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/torture.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nfs/nfsv4.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/nls/nls_ucs2_utils.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/smb/common/cifs_arc4.o
WARNING: modpost: missing MODULE_DESCRIPTION() in fs/smb/common/cifs_md4.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/drm_panel_orientation_quirks.o
>> ERROR: modpost: "devm_drm_of_get_bridge" [drivers/gpu/drm/bridge/aux-bridge.ko] undefined!
ERROR: modpost: "devm_drm_of_get_bridge" [drivers/usb/typec/mux/ptn36502.ko] undefined!

-- 
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https://github.com/intel/lkp-tests/wiki