Add missing DMA sync before updating EAPOL frames 802.11 addresses. Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/mt7996/mac.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c index 588f4aed31eda30aa48eeb06cfcbf36a0e147682..14c4c575a99895f6888a7bdb1353e05e84c8a3c9 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c @@ -1067,6 +1067,9 @@ int mt7996_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, if (!link_sta) return -EINVAL; + dma_sync_single_for_cpu(mdev->dma_dev, tx_info->buf[1].addr, + tx_info->buf[1].len, DMA_TO_DEVICE); + memcpy(hdr->addr1, link_sta->addr, ETH_ALEN); memcpy(hdr->addr2, link_conf->addr, ETH_ALEN); if (ieee80211_has_a4(hdr->frame_control)) { @@ -1077,6 +1080,9 @@ int mt7996_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, } else if (ieee80211_has_fromds(hdr->frame_control)) { memcpy(hdr->addr3, vif->addr, ETH_ALEN); } + + dma_sync_single_for_device(mdev->dma_dev, tx_info->buf[1].addr, + tx_info->buf[1].len, DMA_TO_DEVICE); } pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); --- base-commit: b054061870ecbed6305c0f559ae90f459f17637d change-id: 20250909-mt7996-mlo-eapol-missing-dma-sync-9a13f6528399 Best regards, -- Lorenzo Bianconi