tree 283896eaa8f0d062f6576127ec1d320964891aeb
parent 5bcfedf06f7fdf9efcf65dc11198e9012f7530f4
author Daniel Borkmann <dborkman@redhat.com> 1398962059 +0200
committer David S. Miller <davem@davemloft.net> 1399247191 -0400

net: filter: make register naming more comprehensible

The current code is a bit hard to parse on which registers can be used,
how they are mapped and all play together. It makes much more sense to
define this a bit more clearly so that the code is a bit more intuitive.
This patch cleans this up, and makes naming a bit more consistent among
the code. This also allows for moving some of the defines into the header
file. Clearing of A and X registers in __sk_run_filter() do not get a
particular register name assigned as they have not an 'official' function,
but rather just result from the concrete initial mapping of old BPF
programs. Since for BPF helper functions for BPF_CALL we already use
small letters, so be consistent here as well. No functional changes.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>