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net: dpaa2: Use napi_alloc_frag_align() to avoid the memory waste

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The napi_alloc_frag_align() will guarantee that a correctly align
buffer address is returned. So use this function to simplify the buffer
alloc and avoid the unnecessary memory waste.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kevin Hao 2021-02-04 18:56:38 +08:00 committed by Jakub Kicinski
parent 1b041601c7
commit d0dfbb9912
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
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@ -764,12 +764,11 @@ static int dpaa2_eth_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) * num_dma_bufs;
sgt_buf = napi_alloc_frag(sgt_buf_size + DPAA2_ETH_TX_BUF_ALIGN);
sgt_buf = napi_alloc_frag_align(sgt_buf_size, DPAA2_ETH_TX_BUF_ALIGN);
if (unlikely(!sgt_buf)) {
err = -ENOMEM;
goto sgt_buf_alloc_failed;
}
sgt_buf = PTR_ALIGN(sgt_buf, DPAA2_ETH_TX_BUF_ALIGN);
memset(sgt_buf, 0, sgt_buf_size);
sgt = (struct dpaa2_sg_entry *)(sgt_buf + priv->tx_data_offset);