From d0dfbb9912d9477578f41c5200d7eac3da899dce Mon Sep 17 00:00:00 2001 From: Kevin Hao Date: Thu, 4 Feb 2021 18:56:38 +0800 Subject: [PATCH] net: dpaa2: Use napi_alloc_frag_align() to avoid the memory waste 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 Reviewed-by: Ioana Ciornei Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index c5ceebca8cae..19f74d4cbb4e 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -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);