Craig Gallek e454cf5958 bpf: Implement map_delete_elem for BPF_MAP_TYPE_LPM_TRIE
This is a simple non-recursive delete operation.  It prunes paths
of empty nodes in the tree, but it does not try to further compress
the tree as nodes are removed.

Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-19 13:55:15 -07:00
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