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authorDavid S. Miller <davem@davemloft.net>2020-01-19 22:10:04 +0100
committerDavid S. Miller <davem@davemloft.net>2020-01-19 22:10:04 +0100
commitb3f7e3f23a763ccaae7b52d88d2c91e66c80d406 (patch)
treee00e90eb161305ed9895315ba12e30ac17de9523 /net/ipv4/fib_trie.c
parentMerge branch 'mlxsw-Add-tunnel-devlink-trap-support' (diff)
parentMerge tag 'riscv/for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux (diff)
downloadlinux-dev-b3f7e3f23a763ccaae7b52d88d2c91e66c80d406.tar.xz
linux-dev-b3f7e3f23a763ccaae7b52d88d2c91e66c80d406.zip
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'net/ipv4/fib_trie.c')
-rw-r--r--net/ipv4/fib_trie.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 6ce1f2bbffd0..ff0c24371e33 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2297,6 +2297,12 @@ int fib_table_dump(struct fib_table *tb, struct sk_buff *skb,
int count = cb->args[2];
t_key key = cb->args[3];
+ /* First time here, count and key are both always 0. Count > 0
+ * and key == 0 means the dump has wrapped around and we are done.
+ */
+ if (count && !key)
+ return skb->len;
+
while ((l = leaf_walk_rcu(&tp, key)) != NULL) {
int err;