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- From: Felix Fietkau <[email protected]>
- 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 <[email protected]>
- Signed-off-by: Felix Fietkau <[email protected]>
- ---
- --- 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;
- }
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