From: Sean Wang <sean.wang@kernel.org>
To: nbd@nbd.name, lorenzo.bianconi@redhat.com
Cc: linux-wireless@vger.kernel.org,
linux-mediatek@lists.infradead.org,
Sean Wang <sean.wang@mediatek.com>
Subject: [PATCH] wifi: mt76: mt792x: skip MLD header rewrite for 802.3 encap TX
Date: Sat, 25 Apr 2026 09:46:48 -0500 [thread overview]
Message-ID: <20260425144648.734030-1-sean.wang@kernel.org> (raw)
From: Sean Wang <sean.wang@mediatek.com>
mt792x_tx() rewrites addr1/addr2/addr3 by treating skb->data as
an 802.11 header for MLD traffic.
That is only valid for native 802.11 frames. Direct 802.3 TX can also
reach this path with IEEE80211_TX_CTL_HW_80211_ENCAP set, where
skb->data is not an 802.11 header.
Skip the MLD header rewrite for HW-encap packets to avoid corrupting
802.3 frame contents.
Fixes: ebb1406813c6 ("wifi: mt76: mt7925: add link handling to txwi")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt792x_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_core.c b/drivers/net/wireless/mediatek/mt76/mt792x_core.c
index 152cfcca2f90..157e48e33412 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x_core.c
+++ b/drivers/net/wireless/mediatek/mt76/mt792x_core.c
@@ -105,7 +105,8 @@ void mt792x_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
wcid = &mvif->sta.deflink.wcid;
}
- if (vif && control->sta && ieee80211_vif_is_mld(vif)) {
+ if (vif && control->sta && ieee80211_vif_is_mld(vif) &&
+ !(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP)) {
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_link_sta *link_sta;
struct ieee80211_bss_conf *conf;
base-commit: e8c819df02436f2c2379766946735e1f06a7c923
--
2.43.0
reply other threads:[~2026-04-25 14:47 UTC|newest]
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