diff options
| author | Felix Fietkau <nbd@nbd.name> | 2019-12-05 17:32:41 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-02-14 10:06:00 +0100 |
| commit | 2703bafcdbf7d41562b8e8c877ed94c3aec70ac4 (patch) | |
| tree | 2a5dbfe56e0073c6464b5a30e242f794e7dbfcee /drivers/net/wireless/mediatek/mt76/dma.c | |
| parent | 3e3848280f7d9c3f434c6a8bf9006b41882eb2d1 (diff) | |
mt76: fix rx dma ring descriptor state on reset
To avoid having the hardware potentially write to memory behind stale
descriptors, set the dma-done flag on all of them before cleaning up
allocated rx buffers
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/dma.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index f88d017ff987..2298a4e91943 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -437,7 +437,7 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid) int i; for (i = 0; i < q->ndesc; i++) - q->desc[i].ctrl &= ~cpu_to_le32(MT_DMA_CTL_DMA_DONE); + q->desc[i].ctrl = cpu_to_le32(MT_DMA_CTL_DMA_DONE); mt76_dma_rx_cleanup(dev, q); mt76_dma_sync_idx(dev, q); |