sparksco sm 5.1

  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
target arm C++: libart <= art/runtime/mirror/reference.cc
target arm C++: libart <= art/runtime/mirror/stack_trace_element.cc
  LD      init/built-in.o
  LD      .tmp_vmlinux1
target arm C++: libart <= art/runtime/mirror/string.cc
target arm C++: libart <= art/runtime/mirror/throwable.cc
target arm C++: libart <= art/runtime/monitor.cc
target arm C++: libart <= art/runtime/native_bridge_art_interface.cc
drivers/built-in.o: In function `.LANCHOR1':
qpnp-bsi.c:(.data+0x11a6c): undefined reference to `kgsl_iommu_sync_lock'
qpnp-bsi.c:(.data+0x11a70): undefined reference to `kgsl_iommu_sync_unlock'
make[2]: *** [.tmp_vmlinux1] Error 1
make[1]: *** [sub-make] Error 2
make[1]: Leaving directory `/mnt/Building/cyan_12/kernel/sony/msm8974'
make: *** [TARGET_KERNEL_BINARIES] Error 2
make: *** Waiting for unfinished jobs....