tree 6f2a8406a4d76309b6fe9526e32238e1e1b53cef
parent 39c0d42f8120eae5f8c56a6acd223998a1debc3e
author Paul Jensen <pauljensen@google.com> 1458671026 -0400
committer Paul Jensen <pauljensen@google.com> 1458671026 -0400

Fix APF programs to not generate a failing compare of size 0

Don't generate JNEBS instruction for 0 bytes as it always fails the
ASSERT_FORWARD_IN_PROGRAM(pc + cmp_imm - 1) check where cmp_imm is
the number of bytes to compare.
ApfFilter currently attempts to generate JNEBS for 0 bytes for the
non-lifetime piece between the valid and preferred lifetimes in the
prefix option.
From my testing this fixes RA filtering on bullhead on GoogleGuest.

Bug: 27768019
Change-Id: Id409da55d02767799fb5e3f9d0e9f72ac94d497f