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| author | Felix Fietkau <nbd@nbd.name> | 2018-01-17 12:32:22 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-01-17 12:32:48 +0100 |
| commit | e2c0e904c0e31f746d1e7b01f538b486f7ab510a (patch) | |
| tree | 89586d157efd32d4bc085de856af5ac1aadf5543 /package/kernel/mac80211/patches/322-ath9k-discard-undersized-packets.patch | |
| parent | bdc412941aea6d9b1ff3f82b9541055dab77fb93 (diff) | |
| download | mtk-20170518-e2c0e904c0e31f746d1e7b01f538b486f7ab510a.zip mtk-20170518-e2c0e904c0e31f746d1e7b01f538b486f7ab510a.tar.gz mtk-20170518-e2c0e904c0e31f746d1e7b01f538b486f7ab510a.tar.bz2 | |
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>
Diffstat (limited to 'package/kernel/mac80211/patches/322-ath9k-discard-undersized-packets.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/322-ath9k-discard-undersized-packets.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/322-ath9k-discard-undersized-packets.patch b/package/kernel/mac80211/patches/322-ath9k-discard-undersized-packets.patch new file mode 100644 index 0000000..b2b2fcf --- /dev/null +++ b/package/kernel/mac80211/patches/322-ath9k-discard-undersized-packets.patch @@ -0,0 +1,25 @@ +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; + } |