* sm8150/lineage-20: (1662 commits)
UPSTREAM: seccomp, bpf: disable preemption before calling into bpf prog
BACKPORT: bpf: Fix 32 bit src register truncation on div/mod
BACKPORT: perf, bpf: Introduce PERF_RECORD_BPF_EVENT
UPSTREAM: perf, bpf: Introduce PERF_RECORD_KSYMBOL
UPSTREAM: bpf: BPF_PROG_TYPE_CGROUP_{SKB, SOCK, SOCK_ADDR} require cgroups enabled
UPSTREAM: net: bpfilter: disallow to remove bpfilter module while being used
UPSTREAM: net: bpfilter: restart bpfilter_umh when error occurred
UPSTREAM: net: bpfilter: use cleanup callback to release umh_info
UPSTREAM: signal/bpfilter: Fix bpfilter_kernl to use send_sig not force_sig
UPSTREAM: net: bpfilter: use get_pid_task instead of pid_task
UPSTREAM: net: bpfilter: Fix type cast and pointer warnings
BACKPORT: bpfilter: include bpfilter_umh in assembly instead of using objcopy
UPSTREAM: bpfilter: fix race in pipe access
UPSTREAM: bpfilter: fix building without CONFIG_INET
BACKPORT: umh: add exit routine for UMH process
UPSTREAM: umh: fix race condition
UPSTREAM: umh: Add command line to user mode helpers
BACKPORT: bpf/flow_dissector: support ipv6 flow_label and BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL
UPSTREAM: bpf: Move skb->len == 0 checks into __bpf_redirect
UPSTREAM: bpf: Don't redirect packets with invalid pkt_len
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Change-Id: I01486676181021d1209532bba0955c53ec384066
e0508eaca4