From: Ioana Radulescu ruxandra.radulescu@nxp.com
[ Upstream commit 466bcdc1fa303be175c45d054bb00effc575033a ]
We are using DMA_FROM_DEVICE when mapping RX frame buffers, but DMA_BIDIRECTIONAL for unmap. Fix the direction for DMA unmapping operation.
Fixes: 87eb55e418b7 ("staging: fsl-dpaa2/eth: Fix potential endless loop")
Signed-off-by: Ioana Radulescu ruxandra.radulescu@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c index 396371728aa1..537d5bb5e294 100644 --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c @@ -767,7 +767,7 @@ static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count) for (i = 0; i < count; i++) { vaddr = dpaa2_iova_to_virt(priv->iommu_domain, buf_array[i]); dma_unmap_single(dev, buf_array[i], DPAA2_ETH_RX_BUF_SIZE, - DMA_BIDIRECTIONAL); + DMA_FROM_DEVICE); skb_free_frag(vaddr); } }