There are some problems

[dalongxia233]

techpack/built-in.o: In function elliptic_io_open_port': /home/homo/Desktop/android_kernel_xiaomi_sdm845-master/out/../techpack/audio/asoc/elliptic/io_modules/msm/elliptic_data_msm_io.c:76: undefined reference to afe_start_pseudo_port'
techpack/built-in.o: In function elliptic_io_close_port': /home/homo/Desktop/android_kernel_xiaomi_sdm845-master/out/../techpack/audio/asoc/elliptic/io_modules/msm/elliptic_data_msm_io.c:83: undefined reference to afe_stop_pseudo_port'
techpack/built-in.o: In function elliptic_data_io_write': /home/homo/Desktop/android_kernel_xiaomi_sdm845-master/out/../techpack/audio/asoc/elliptic/io_modules/msm/elliptic_data_msm_io.c:93: undefined reference to ultrasound_apr_set_parameter'
make[1]: *** [/home/homo/Desktop/android_kernel_xiaomi_sdm845-master/Makefile:1091: vmlinux] Error 1
make[1]: Leaving directory '/home/homo/Desktop/android_kernel_xiaomi_sdm845-master/out'
make: *** [Makefile:152: sub-make] Error 2

[Martinvlba]

Better look at here: https://github.com/Neternels/kernel-xiaomi-sdm845

[Martinvlba]

As my projects related to beryllium ( in public are mostly dead now )