25 lines
753 B
Diff
25 lines
753 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Wed, 17 Jan 2018 11:11:17 +0100
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Subject: [PATCH] ath9k: discard undersized packets
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Sometimes the hardware will push small packets that trigger a WARN_ON
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in mac80211. Discard them early to avoid this issue.
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Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/recv.c
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+++ b/drivers/net/wireless/ath/ath9k/recv.c
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@@ -826,9 +826,9 @@ static int ath9k_rx_skb_preprocess(struc
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sc->rx.discard_next = false;
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/*
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- * Discard zero-length packets.
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+ * Discard zero-length packets and packets smaller than an ACK
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*/
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- if (!rx_stats->rs_datalen) {
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+ if (rx_stats->rs_datalen < 10) {
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RX_STAT_INC(rx_len_err);
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goto corrupt;
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}
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