netdev - [PATCH] net: amd: pcnet32: Replace GFP_ATOMIC with GFP_KERNEL in pcnet32_alloc

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Date:   Fri, 27 Jul 2018 15:57:58 +0800
From:   Jia-Ju Bai <baijiaju1990@...il.com>
To:     pcnet32@...ntier.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jia-Ju Bai <baijiaju1990@...il.com>
Subject: [PATCH] net: amd: pcnet32: Replace GFP_ATOMIC with GFP_KERNEL in pcnet32_alloc_ring()

pcnet32_alloc_ring() is never called in atomic context.
It calls kcalloc() with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
---
 drivers/net/ethernet/amd/pcnet32.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index a561705f232c..e69e810d211d 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -2032,22 +2032,22 @@ static int pcnet32_alloc_ring(struct net_device *dev, const char *name)
 	}
 
 	lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t),
-				  GFP_ATOMIC);
+				  GFP_KERNEL);
 	if (!lp->tx_dma_addr)
 		return -ENOMEM;
 
 	lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t),
-				  GFP_ATOMIC);
+				  GFP_KERNEL);
 	if (!lp->rx_dma_addr)
 		return -ENOMEM;
 
 	lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *),
-				GFP_ATOMIC);
+				GFP_KERNEL);
 	if (!lp->tx_skbuff)
 		return -ENOMEM;
 
 	lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *),
-				GFP_ATOMIC);
+				GFP_KERNEL);
 	if (!lp->rx_skbuff)
 		return -ENOMEM;
 
-- 
2.17.0