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wifi: mt76: mt7921: prevent decap offload config before STA initialization

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The decap offload configuration should only be applied after the STA has
been successfully initialized. Attempting to configure it earlier can lead
to corruption of the MAC configuration in the chip's hardware state.

Add an early check for `msta->deflink.wcid.sta` to ensure the station peer
is properly initialized before proceeding with decapsulation offload
configuration.

Cc: stable@vger.kernel.org
Fixes: 24299fc869 ("mt76: mt7921: enable rx header traslation offload")
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Link: https://patch.msgid.link/f23a72ba7a3c1ad38ba9e13bb54ef21d6ef44ffb.1748149855.git.deren.wu@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Deren Wu
2025-05-25 14:11:22 +08:00
committed by Felix Fietkau
parent 35ad47c0b3
commit 7035a08234
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/mediatek/mt76/mt7921/main.c
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@@ -1180,6 +1180,9 @@ static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
struct mt792x_dev *dev = mt792x_hw_dev(hw);
if (!msta->deflink.wcid.sta)
return;
mt792x_mutex_acquire(dev);
if (enabled)