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wifi: mt76: mt7996: Add missing DMA sync for EAPOL frames

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Add missing DMA sync before updating EAPOL frames 802.11 addresses.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/20250909-mt7996-mlo-eapol-missing-dma-sync-v1-1-623924fdb875@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2025-09-09 18:07:56 +02:00
committed by Felix Fietkau
parent b50c633f91
commit ea99986935
1 changed files with 6 additions and 0 deletions
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mt7996/mac.c
+6
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@@ -1074,6 +1074,9 @@ 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)) {
@@ -1084,6 +1087,9 @@ 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);