tree e893ef41493550da42dcb6486b8c1c33a4b934b3
parent c03742346f0f3f08b83b0d2944bf72e19ea26191
author Dave Barach <dave@barachs.net> 1521228095 -0400
committer Damjan Marion <dmarion.lists@gmail.com> 1521232093 +0000

Fix a long-latent bi=0 bug in vlib_buffer_add_data

Change vlib_buffer_add_data() so it interprets ~0 to mean please
allocate a new buffer, instead of 0. Fixed a couple of calls to pass
~0 instead of 0.

Zero has always been a valid buffer index, we never happened to
actually use it until recent buffer allocator changes.

The presenting symptom: ASSERT failure when running "make
TEST=test_mpls test-debug"

Change-Id: Ic909913c1d464b3434d6d47e0c58f978806854d5
Signed-off-by: Dave Barach <dave@barachs.net>