diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2018-07-11 17:15:49 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2018-07-11 17:16:31 +0200 |
| commit | 88f864e839acad65e48652f37cc7b6b8f984c49e (patch) | |
| tree | 39ea9935b291e7ed2748f61544fd17db49e7d961 | |
| parent | ee8e78b96cc2c52bfe4eed14ad9d30698551739b (diff) | |
receive: account for zero or negative budget
Suggested-by: Thomas Gschwantner <tharre3@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
| -rw-r--r-- | src/receive.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/receive.c b/src/receive.c index 1e8a242..f9d8228 100644 --- a/src/receive.c +++ b/src/receive.c @@ -379,6 +379,9 @@ int packet_rx_poll(struct napi_struct *napi, int budget) int work_done = 0; bool free; + if (unlikely(budget <= 0)) + return 0; + while ((skb = __ptr_ring_peek(&queue->ring)) != NULL && (state = atomic_read(&PACKET_CB(skb)->state)) != PACKET_STATE_UNCRYPTED) { __ptr_ring_discard_one(&queue->ring); peer = PACKET_PEER(skb); |