tree e42352604c4f0db159881faff4b7cef49393d878
parent 435faee1aae9c1ac231f89e4faf0437bfe29f425
author Daniel Borkmann <daniel@iogearbox.net> 1460499052 +0200
committer David S. Miller <davem@davemloft.net> 1460684441 -0400

bpf: convert relevant helper args to ARG_PTR_TO_RAW_STACK

This patch converts all helpers that can use ARG_PTR_TO_RAW_STACK as argument
type. For tc programs this is bpf_skb_load_bytes(), bpf_skb_get_tunnel_key(),
bpf_skb_get_tunnel_opt(). For tracing, this optimizes bpf_get_current_comm()
and bpf_probe_read(). The check in bpf_skb_load_bytes() for MAX_BPF_STACK can
also be removed since the verifier already makes sure we stay within bounds
on stack buffers.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>