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wifi: mt76: Fix memory leak destroying device

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All MT76 rx queues have an associated page_pool even if the queue is not
associated to a NAPI (e.g. WED RRO queues with WED enabled). Destroy the
page_pool running mt76_dma_cleanup routine during module unload.
Moreover returns pages to the page pool if WED is not enabled for WED RRO
queues.

Fixes: 950d0abb5cd94 ("wifi: mt76: mt7996: add wed rx support")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2026-01-27 11:42:02 +00:00
committed by Felix Fietkau
parent ffdbdcd396
commit 7dd72bbd6f
1 changed files with 6 additions and 5 deletions
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dma.c
+6 -5
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@@ -874,7 +874,12 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
if (!buf)
break;
if (!mt76_queue_is_wed_rro(q))
if (mtk_wed_device_active(&dev->mmio.wed) &&
mt76_queue_is_wed_rro(q))
continue;
if (!mt76_queue_is_wed_rro_rxdmad_c(q) &&
!mt76_queue_is_wed_rro_ind(q))
mt76_put_page_pool_buf(buf, false);
} while (1);
@@ -1168,10 +1173,6 @@ void mt76_dma_cleanup(struct mt76_dev *dev)
mt76_for_each_q_rx(dev, i) {
struct mt76_queue *q = &dev->q_rx[i];
if (mtk_wed_device_active(&dev->mmio.wed) &&
mt76_queue_is_wed_rro(q))
continue;
netif_napi_del(&dev->napi[i]);
mt76_dma_rx_cleanup(dev, q);