mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 00:11:13 +00:00
26 lines
753 B
Diff
26 lines
753 B
Diff
|
From: Felix Fietkau <nbd@nbd.name>
|
||
|
|
Date: Wed, 17 Jan 2018 11:11:17 +0100
|
||
|
|
Subject: [PATCH] ath9k: discard undersized packets
|
||
|
|
|
||
|
|
Sometimes the hardware will push small packets that trigger a WARN_ON
|
||
|
|
in mac80211. Discard them early to avoid this issue.
|
||
|
|
|
||
|
|
Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
|
||
|
|
Signed-off-by: Felix Fietkau <nbd@nbd.name>
|
||
|
|
---
|
||
|
|
|
||
|
|
--- a/drivers/net/wireless/ath/ath9k/recv.c
|
||
|
|
+++ b/drivers/net/wireless/ath/ath9k/recv.c
|
||
|
|
@@ -826,9 +826,9 @@ static int ath9k_rx_skb_preprocess(struc
|
||
|
|
sc->rx.discard_next = false;
|
||
|
|
|
||
|
|
/*
|
||
|
|
- * Discard zero-length packets.
|
||
|
|
+ * Discard zero-length packets and packets smaller than an ACK
|
||
|
|
*/
|
||
|
|
- if (!rx_stats->rs_datalen) {
|
||
|
|
+ if (rx_stats->rs_datalen < 10) {
|
||
|
|
RX_STAT_INC(rx_len_err);
|
||
|
|
goto corrupt;
|
||
|
|
}
|