The mlx5_core driver uses several indirect calls in fast-path, some of them are invoked on each ingress packet, even for the XDP-only traffic.
This series leverage the indirect call wrappers infrastructure the avoid the expansive RETPOLINE overhead for 2 indirect calls in fast-path. Each call is addressed on a different patch, plus we need to introduce a couple of additional helpers to cope with the higher number of possible direct-call alternatives. Paolo Abeni (3): net/mlx5e: use indirect calls wrapper for skb allocation indirect call wrappers: add helpers for 3 and 4 ways switch net/mlx5e: use indirect calls wrapper for the rx packet handler .../net/ethernet/mellanox/mlx5/core/en_rx.c | 26 ++++++++++++++----- include/linux/indirect_call_wrapper.h | 12 +++++++++ 2 files changed, 32 insertions(+), 6 deletions(-) -- 2.20.1
