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authorJoe Perches <joe@perches.com>2013-03-15 07:23:58 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-17 12:50:24 -0400
commit1f9061d27d3d2028805549c4a306324a48209057 (patch)
tree7cfb1a92933f5a9bba6745b68b6a964d9e757ef9 /drivers/net/ethernet/sgi
parentnetpoll: use DEFINE_STATIC_SRCU() to define netpoll_srcu (diff)
downloadlinux-dev-1f9061d27d3d2028805549c4a306324a48209057.tar.xz
linux-dev-1f9061d27d3d2028805549c4a306324a48209057.zip
drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0)
Reduce the number of calls required to alloc a zeroed block of memory. Trivially reduces overall object size. Other changes around these removals o Neaten call argument alignment o Remove an unnecessary OOM message after dma_alloc_coherent failure o Remove unnecessary gfp_t stack variable Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sgi')
-rw-r--r--drivers/net/ethernet/sgi/meth.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sgi/meth.c b/drivers/net/ethernet/sgi/meth.c
index 79ad9c94a21b..4bdbaad9932d 100644
--- a/drivers/net/ethernet/sgi/meth.c
+++ b/drivers/net/ethernet/sgi/meth.c
@@ -213,10 +213,11 @@ static int meth_init_tx_ring(struct meth_private *priv)
{
/* Init TX ring */
priv->tx_ring = dma_alloc_coherent(NULL, TX_RING_BUFFER_SIZE,
- &priv->tx_ring_dma, GFP_ATOMIC);
+ &priv->tx_ring_dma,
+ GFP_ATOMIC | __GFP_ZERO);
if (!priv->tx_ring)
return -ENOMEM;
- memset(priv->tx_ring, 0, TX_RING_BUFFER_SIZE);
+
priv->tx_count = priv->tx_read = priv->tx_write = 0;
mace->eth.tx_ring_base = priv->tx_ring_dma;
/* Now init skb save area */