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authorDaniel Borkmann <daniel@iogearbox.net>2016-07-03 01:28:47 +0200
committerMichael Bestas <mkbestas@lineageos.org>2022-04-19 00:50:27 +0300
commit8dbaaca1649bf054d16c3b63107ce28c493cc2f7 (patch)
tree6a9efad491ef89fec8ae5cd829a2d45634e1e465 /samples/bpf/bpf_helpers.h
parent388c8f8d94fe2569287f6ce83cb3ef649af2c2ab (diff)
bpf: add bpf_get_hash_recalc helper
If skb_clear_hash() was invoked due to mangling of relevant headers and BPF program needs skb->hash later on, we can add a helper to trigger hash recalculation via bpf_get_hash_recalc(). The helper will return the newly retrieved hash directly, but later access can also be done via skb context again through skb->hash directly (inline) without needing to call the helper once more. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'samples/bpf/bpf_helpers.h')
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