* [PATCH net-next] net: sgi: use GFP_ATOMIC under spin lock
@ 2019-02-16 1:48 Wei Yongjun
2019-02-17 23:52 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Wei Yongjun @ 2019-02-16 1:48 UTC (permalink / raw)
To: David S . Miller, Yang Wei, Luis Chamberlain, YueHaibing,
Christoph Hellwig
Cc: Wei Yongjun, netdev, kernel-janitors
The function meth_init_tx_ring() is called from meth_tx_timeout(),
in which spin_lock is held, so we should use GFP_ATOMIC instead.
Fixes: 8d4c28fbc284 ("meth: pass struct device to DMA API functions")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
drivers/net/ethernet/sgi/meth.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/sgi/meth.c b/drivers/net/ethernet/sgi/meth.c
index f425ab528224..f1271402ca21 100644
--- a/drivers/net/ethernet/sgi/meth.c
+++ b/drivers/net/ethernet/sgi/meth.c
@@ -214,7 +214,7 @@ static int meth_init_tx_ring(struct meth_private *priv)
{
/* Init TX ring */
priv->tx_ring = dma_alloc_coherent(&priv->pdev->dev,
- TX_RING_BUFFER_SIZE, &priv->tx_ring_dma, GFP_KERNEL);
+ TX_RING_BUFFER_SIZE, &priv->tx_ring_dma, GFP_ATOMIC);
if (!priv->tx_ring)
return -ENOMEM;
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