From: Thomas Bogendoerfer <tbogendoerfer@suse.de>
To: Ralf Baechle <ralf@linux-mips.org>,
"David S. Miller" <davem@davemloft.net>,
linux-mips@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Christoph Hellwig <hch@lst.de>
Subject: [net v3 2/5] net: sgi: ioc3-eth: fix usage of GFP_* flags
Date: Mon, 4 Nov 2019 11:45:12 +0100 [thread overview]
Message-ID: <20191104104515.7066-2-tbogendoerfer@suse.de> (raw)
In-Reply-To: <20191104104515.7066-1-tbogendoerfer@suse.de>
From: Christoph Hellwig <hch@lst.de>
dma_alloc_coherent always zeroes memory, there is no need for
__GFP_ZERO. Also doing a GFP_ATOMIC allocation just before a GFP_KERNEL
one is clearly bogus.
Fixes: ed870f6a7aa2 ("net: sgi: ioc3-eth: use dma-direct for dma allocations")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/sgi/ioc3-eth.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index 477af82bf8a9..8a684d882e63 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -1243,7 +1243,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* Allocate rx ring. 4kb = 512 entries, must be 4kb aligned */
ip->rxr = dma_alloc_coherent(ip->dma_dev, RX_RING_SIZE, &ip->rxr_dma,
- GFP_ATOMIC);
+ GFP_KERNEL);
if (!ip->rxr) {
pr_err("ioc3-eth: rx ring allocation failed\n");
err = -ENOMEM;
@@ -1252,7 +1252,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* Allocate tx rings. 16kb = 128 bufs, must be 16kb aligned */
ip->txr = dma_alloc_coherent(ip->dma_dev, TX_RING_SIZE, &ip->txr_dma,
- GFP_KERNEL | __GFP_ZERO);
+ GFP_KERNEL);
if (!ip->txr) {
pr_err("ioc3-eth: tx ring allocation failed\n");
err = -ENOMEM;
--
2.16.4
next prev parent reply other threads:[~2019-11-04 10:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-04 10:45 [net v3 1/5] net: sgi: ioc3-eth: don't abuse dma_direct_* calls Thomas Bogendoerfer
2019-11-04 10:45 ` Thomas Bogendoerfer [this message]
2019-11-04 10:45 ` [net v3 3/5] net: sgi: ioc3-eth: simplify setting the DMA mask Thomas Bogendoerfer
2019-11-04 10:45 ` [net v3 4/5] net: sgi: ioc3-eth: fix setting NETIF_F_HIGHDMA Thomas Bogendoerfer
2019-11-04 10:45 ` [net v3 5/5] net: sgi: ioc3-eth: ensure tx ring is 16k aligned Thomas Bogendoerfer
2019-11-04 19:30 ` [net v3 1/5] net: sgi: ioc3-eth: don't abuse dma_direct_* calls David Miller
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