xdp: remove net_device names from xdp_redirect tracepoint

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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 <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jesper Dangaard Brouer 2017-08-24 12:33:18 +02:00 • committed by David S. Miller

parent 2886447dc5

commit a873585587

2 changed files with 15 additions and 15 deletions

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include/trace/events/xdp.h

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