From 2efa389b4ce02b9890926c0d67b2ba1d1061f3ac Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 21 Jan 2019 21:02:32 +0100 Subject: [PATCH] mt7603: limit station power save queue length to 64 Avoid excessive memory use, in case something goes wrong. Signed-off-by: Felix Fietkau --- mt7603/dma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mt7603/dma.c b/mt7603/dma.c index d83217bd..9c54bea9 100644 --- a/mt7603/dma.c +++ b/mt7603/dma.c @@ -90,6 +90,10 @@ mt7603_rx_loopback_skb(struct mt7603_dev *dev, struct sk_buff *skb) spin_lock_bh(&dev->ps_lock); __skb_queue_tail(&msta->psq, skb); + if (skb_queue_len(&msta->psq) >= 64) { + skb = __skb_dequeue(&msta->psq); + dev_kfree_skb(skb); + } spin_unlock_bh(&dev->ps_lock); return;