error

armv7-alpine-linux-musleabihf-ld: init/mounts.o: in function `tty_port_users':
/home/pmos/build/src/android_kernel_lg_envt2-685024d7391394b5f8a56edd9d5aa4c628430e69/include/linux/tty.h:472: multiple definition of `tty_port_users'; init/main.o:/home/pmos/build/src/android_kernel_lg_envt2-685024d7391394b5f8a56edd9d5aa4c628430e69/include/linux/tty.h:472: first defined here
make[1]: *** [scripts/Makefile.build:297: init/built-in.o] Error 1
make: *** [Makefile:884: init] Error 2
>>> ERROR: linux-lg-us760: build failed