Comment # 2 on bug 1205603 from Takashi Iwai

bpf was removed from the list explicitly, at commit
0a20128a486536db31e484f5848e239f8acd0fba:

    Revert "config: Enable BPF LSM" (bsc#1197746)

    This reverts commit c2c25b18721866d6211054f542987036ed6e0a50.

    This config change was reported to break boot if SELinux is enabled. Revert
    until we have a fix.