Building with the attached random configuration file,
warning: (DVB_USB_RTL28XXU) selects MEDIA_TUNER_E4000 which has unmet
direct dependencies ((MEDIA_ANALOG_TV_SUPPORT ||
MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT) && MEDIA_SUPPORT &&
I2C && VIDEO_V4L2)
warning: (BRIDGE_NF_EBTABLES) selects NETFILTER_XTABLES which has
unmet direct dependencies (NET && INET && NETFILTER)
warning: (AHCI_XGENE) selects PHY_XGENE which has unmet direct
dependencies (HAS_IOMEM && OF && (ARM64 || COMPILE_TEST))
drivers/built-in.o: In function `e4000_remove':
e4000.c:(.text+0x30570f): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o: In function `e4000_probe':
e4000.c:(.text+0x306085): undefined reference to `v4l2_ctrl_handler_init_class'
e4000.c:(.text+0x3060ae): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x3060e1): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x3060fd): undefined reference to `v4l2_ctrl_auto_cluster'
e4000.c:(.text+0x306126): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x306156): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x306172): undefined reference to `v4l2_ctrl_auto_cluster'
e4000.c:(.text+0x30619b): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x3061cb): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x3061e7): undefined reference to `v4l2_ctrl_auto_cluster'
e4000.c:(.text+0x306210): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x306240): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x30625c): undefined reference to `v4l2_ctrl_auto_cluster'
e4000.c:(.text+0x306285): undefined reference to `v4l2_ctrl_new_std'
e4000.c:(.text+0x3062a0): undefined reference to `v4l2_ctrl_handler_free'
make: *** [vmlinux] Error 1