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authorAlexei Starovoitov <ast@fb.com>2017-03-05 09:41:08 -0800
committerDavid S. Miller <davem@davemloft.net>2017-03-05 17:55:29 -0800
commitf38837b08d23e66de17d46d030e0d9ac5172ad1f (patch)
tree7b8ebd54fad763393978ab68950188b631367490 /kernel/bpf
parent8d70eeb84ab277377c017af6a21d0a337025dede (diff)
downloadlinux-f38837b08d23e66de17d46d030e0d9ac5172ad1f.tar.bz2
bpf: add get_next_key callback to LPM map
map_get_next_key callback is mandatory. Supply dummy handler. Fixes: b95a5c4db09b ("bpf: add a longest prefix match trie map implementation") Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf')
-rw-r--r--kernel/bpf/lpm_trie.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c
index 8bfe0afaee10..b37bd9ab7f57 100644
--- a/kernel/bpf/lpm_trie.c
+++ b/kernel/bpf/lpm_trie.c
@@ -500,9 +500,15 @@ unlock:
raw_spin_unlock(&trie->lock);
}
+static int trie_get_next_key(struct bpf_map *map, void *key, void *next_key)
+{
+ return -ENOTSUPP;
+}
+
static const struct bpf_map_ops trie_ops = {
.map_alloc = trie_alloc,
.map_free = trie_free,
+ .map_get_next_key = trie_get_next_key,
.map_lookup_elem = trie_lookup_elem,
.map_update_elem = trie_update_elem,
.map_delete_elem = trie_delete_elem,