ice, xsk: Decorate ICE_XDP_REDIR with likely()

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ice_run_xdp_zc() suggests to compiler that XDP_REDIRECT is the most
probable action returned from BPF program that AF_XDP has in its
pipeline. Let's also bring this suggestion up to the callsite of
ice_run_xdp_zc() so that compiler will be able to generate more
optimized code which in turn will make branch predictor happy.

Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220413153015.453864-4-maciej.fijalkowski@intel.com

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Maciej Fijalkowski 2022-04-13 17:30:04 +02:00 • committed by Daniel Borkmann

parent 2be4a677cc

commit 0bd5ab511e

1 changed files with 11 additions and 10 deletions

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drivers/net/ethernet/intel/ice/ice_xsk.c

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