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drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0)

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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>
This commit is contained in:
Joe Perches
2013-03-15 07:23:58 +00:00
committed by David S. Miller
parent 7f9421c264
commit 1f9061d27d
38 changed files with 104 additions and 168 deletions
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3
drivers/net/ethernet/intel/ixgb/ixgb_main.c
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@@ -717,12 +717,11 @@ ixgb_setup_tx_resources(struct ixgb_adapter *adapter)
txdr->size = ALIGN(txdr->size, 4096);
txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
GFP_KERNEL);
GFP_KERNEL | __GFP_ZERO);
if (!txdr->desc) {
vfree(txdr->buffer_info);
return -ENOMEM;
}
memset(txdr->desc, 0, txdr->size);
txdr->next_to_use = 0;
txdr->next_to_clean = 0;