diff options
| author | Felix Fietkau <nbd@nbd.name> | 2023-03-14 10:59:56 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-03-22 13:31:19 +0100 |
| commit | fe4a6d2db3bad41e9f22c860596f355af8493ebb (patch) | |
| tree | d3e9b1d0fc9764ea23b8fbb3811adc1a20f7e9b4 /net/mac80211/rx.c | |
| parent | 3468e1e0c639032a603450f0830ccabfa76f5806 (diff) | |
wifi: mac80211: implement support for yet another mesh A-MSDU format
MT7996 hardware supports mesh A-MSDU subframes in hardware, but uses a
big-endian length field
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://lore.kernel.org/r/20230314095956.62085-7-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 85fb1d3eeb2f..1c957194554b 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2983,13 +2983,23 @@ __ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx, u8 data_offset) return RX_DROP_UNUSABLE; if (rx->sta && rx->sta->amsdu_mesh_control < 0) { - bool valid_std = ieee80211_is_valid_amsdu(skb, true); - bool valid_nonstd = ieee80211_is_valid_amsdu(skb, false); + s8 valid = -1; + int i; + + for (i = 0; i <= 2; i++) { + if (!ieee80211_is_valid_amsdu(skb, i)) + continue; + + if (valid >= 0) { + /* ambiguous */ + valid = -1; + break; + } + + valid = i; + } - if (valid_std && !valid_nonstd) - rx->sta->amsdu_mesh_control = 1; - else if (valid_nonstd && !valid_std) - rx->sta->amsdu_mesh_control = 0; + rx->sta->amsdu_mesh_control = valid; } ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr, |