| From: Felix Fietkau <nbd@nbd.name> |
| Date: Fri, 7 Oct 2022 10:58:26 +0200 |
| Subject: [PATCH] wifi: mac80211: do not drop packets smaller than the |
| LLC-SNAP header on fast-rx |
| |
| Since STP TCN frames are only 7 bytes, the pskb_may_pull call returns an error. |
| Instead of dropping those packets, bump them back to the slow path for proper |
| processing. |
| |
| Fixes: 49ddf8e6e234 ("mac80211: add fast-rx path") |
| Reported-by: Chad Monroe <chad.monroe@smartrg.com> |
| Signed-off-by: Felix Fietkau <nbd@nbd.name> |
| --- |
| |
| --- a/net/mac80211/rx.c |
| +++ b/net/mac80211/rx.c |
| @@ -4603,7 +4603,7 @@ static bool ieee80211_invoke_fast_rx(str |
| |
| if (!(status->rx_flags & IEEE80211_RX_AMSDU)) { |
| if (!pskb_may_pull(skb, snap_offs + sizeof(*payload))) |
| - goto drop; |
| + return false; |
| |
| payload = (void *)(skb->data + snap_offs); |
| |