提交 cbcf0999 编写于 作者: J Jose Abreu 提交者: David S. Miller

net: stmmac: RX Descriptors need to be clean before setting buffers

RX Descriptors are being cleaned after setting the buffers which may
lead to buffer addresses being wiped out.

Fix this by clearing earlier the RX Descriptors.

Fixes: 2af6106a ("net: stmmac: Introducing support for Page Pool")
Signed-off-by: NJose Abreu <joabreu@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 f4e5f775
......@@ -1295,6 +1295,8 @@ static int init_dma_rx_desc_rings(struct net_device *dev, gfp_t flags)
"(%s) dma_rx_phy=0x%08x\n", __func__,
(u32)rx_q->dma_rx_phy);
stmmac_clear_rx_descriptors(priv, queue);
for (i = 0; i < DMA_RX_SIZE; i++) {
struct dma_desc *p;
......@@ -1312,8 +1314,6 @@ static int init_dma_rx_desc_rings(struct net_device *dev, gfp_t flags)
rx_q->cur_rx = 0;
rx_q->dirty_rx = (unsigned int)(i - DMA_RX_SIZE);
stmmac_clear_rx_descriptors(priv, queue);
/* Setup the chained descriptor addresses */
if (priv->mode == STMMAC_CHAIN_MODE) {
if (priv->extend_desc)
......
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