make: Entering directory '/mnt/foo/halium-dev/kernel/zte/msm8996'
make[1]: Entering directory '/mnt/foo/halium-dev/out/target/product/axon7/obj/KERNEL_OBJ'
  GEN     ./Makefile
scripts/kconfig/conf --silentoldconfig Kconfig
drivers/soc/qcom/Kconfig:368:warning: choice value used outside its choice group
drivers/soc/qcom/Kconfig:373:warning: choice value used outside its choice group
  CHK     include/config/kernel.release
  GEN     ./Makefile
  CHK     include/generated/uapi/linux/version.h
  Using /mnt/foo/halium-dev/kernel/zte/msm8996 as source for kernel
  CHK     include/generated/utsrelease.h
  CALL    /mnt/foo/halium-dev/kernel/zte/msm8996/scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  LINK    vmlinux
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
arch/arm64/kernel/built-in.o: In function `cpu_get_ops':
arch/arm64/kernel/vdso/vdso.o:(.init.text+0xc40): undefined reference to `__cpu_method_of_table'
arch/arm64/kernel/vdso/vdso.o:(.init.text+0xc48): undefined reference to `__cpu_method_of_table'
drivers/built-in.o: In function `gic_show_resume_irq.constprop.10':
clk-xgene.c:(.text+0x1428): undefined reference to `pm_show_rpm_stats'
clk-xgene.c:(.text+0x14f4): undefined reference to `pm_show_rpm_stats'
drivers/built-in.o: In function `fp_msg_type_set':
clk-xgene.c:(.text+0x4f3b4): undefined reference to `fb_blank_update_oem'
drivers/built-in.o: In function `wakeup_sources_debugfs_init':
clk-xgene.c:(.init.text+0x22fc): undefined reference to `socinfo_get_ftm_flag'
kernel/built-in.o: In function `process_one_work':
cpu_pm.c:(.text+0x1444c): undefined reference to `tracing_is_disabled'
kernel/built-in.o: In function `suspend_devices_and_enter':
cpu_pm.c:(.text+0x2712c): undefined reference to `record_sleep_awake_time'
make[1]: *** [/mnt/foo/halium-dev/kernel/zte/msm8996/Makefile:932: vmlinux] Error 1
make[1]: Leaving directory '/mnt/foo/halium-dev/out/target/product/axon7/obj/KERNEL_OBJ'
make: *** [Makefile:145: sub-make] Error 2
make: Leaving directory '/mnt/foo/halium-dev/kernel/zte/msm8996'
ninja: build stopped: subcommand failed.
make: *** [build/core/ninja.mk:152: ninja_wrapper] Error 1
make: Leaving directory '/mnt/foo/halium-dev'