[PATCH 8/9] staging: fsl-dpaa2/eth: Fix SGT allocation

Ioana Radulescu
2018-03-23T13:44:12Z

We mistakenly allocate space for too many entries in the
scatter-gather table of multi buffer egress frames.

While it doesn't have a negative impact from a functional
point of view, it wastes resources so fix it.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.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 9994922..14bd8fe 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
@@ -373,7 +373,7 @@ static int build_sg_fd(struct dpaa2_eth_priv *priv,

/* Prepare the HW SGT structure */
sgt_buf_size = priv->tx_data_offset +
- sizeof(struct dpaa2_sg_entry) * (1 + num_dma_bufs);
+ sizeof(struct dpaa2_sg_entry) * num_dma_bufs;
sgt_buf = netdev_alloc_frag(sgt_buf_size + DPAA2_ETH_TX_BUF_ALIGN);
if (unlikely(!sgt_buf)) {
err = -ENOMEM;