Re: [V2 PATCH net-next 4/5] xdp: remove net_device names from xdp_redirect tracepoint

On 08/23/2017 12:15 PM, Jesper Dangaard Brouer wrote:

There is too much overhead in the current trace_xdp_redirect
tracepoint as it does strcpy and strlen on the net_device names.

Besides, exposing the ifindex/index is actually the information that
is needed in the tracepoint to diagnose issues.  When a lookup fails
(either ifindex or devmap index) then there is a need for saying which
to_index that have issues.

V2: Adjust args to be aligned with trace_xdp_exception.

Signed-off-by: Jesper Dangaard Brouer <redacted>

Acked-by: Daniel Borkmann <daniel@iogearbox.net>