nfp: bpf: allow source ptr type be map ptr in memcpy optimization

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Map read has been supported on NFP, this patch enables optimization
for memcpy from map to packet.

This patch also fixed one latent bug which will cause copying from
unexpected address once memcpy for map pointer enabled.  The fixed
code path was not exercised before.

Reported-by: Mary Pham <mary.pham@netronome.com>
Reported-by: David Beckett <david.beckett@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

...

This commit is contained in:

Jiong Wang 2018-06-26 19:48:52 -07:00 • committed by Daniel Borkmann

parent b1a5046b24

commit cc0dff6dc3

1 changed files with 3 additions and 2 deletions

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5

drivers/net/ethernet/netronome/nfp/bpf/jit.c

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