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authorJiong Wang <jiong.wang@netronome.com>2018-05-18 12:12:10 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-05-18 21:35:55 +0200
commitf43d0f17fe9a4bb770ab38b36e2b5150d8c3d6cf (patch)
tree8181906f9bec541e5f0bfe8a35edf4e215f272f4 /kernel/bpf/arraymap.c
parent991f5b3651f6bb1cb5034f422e43f489e65f2701 (diff)
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nfp: bpf: support arithmetic right shift by constant (BPF_ARSH | BPF_K)
Code logic is similar with logic right shift except we also need to set PREV_ALU result properly, the MSB of which is the bit that will be replicated to fill in all the vacant positions. Signed-off-by: Jiong Wang <jiong.wang@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'kernel/bpf/arraymap.c')
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