commit d9c878e73a3dff47938dc00b04997860f7c39b63
author Chenbo Feng <fengc@google.com> Tue Mar 06 02:13:51 2018 -0800
committer Chenbo Feng <fengc@google.com> Mon Mar 26 17:37:56 2018 -0700
tree 0c7da062aecc3f81560d1ffc0f1822ece391685a
parent a0890c562e8c74cfa67328bd2e426bb3a7477378

refactor bpf kernel program

Refactor the program into several inline function and resolve the
duplication of ingress program and egress program. The Program compiled
from the new inline function should be no difference compare to the old
ones.

Bug: 30950746
Test: bpf program can be loaded.
      atest android.net.cts.TrafficStatsTest
      atest android.app.usage.cts.NetworkUsageStatsTest
Change-Id: I8091e8bdf7f3fe118c26907028e3f845eb41ab65
(cherry picked from aosp commit 2cc3d6ae2df3bf8434d236ff87a0a1cad4ac5828)