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ixgb: use dma_zalloc_coherent instead of allocator/memset

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Use dma_zalloc_coherent instead of dma_alloc_coherent
followed by memset 0.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
YueHaibing 2018-07-19 22:04:07 +08:00 committed by Jeff Kirsher
parent ff0fadfffe
commit a9910c0886
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/intel/ixgb/ixgb_main.c
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@ -771,14 +771,13 @@ ixgb_setup_rx_resources(struct ixgb_adapter *adapter)
rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc);
rxdr->size = ALIGN(rxdr->size, 4096);
rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
GFP_KERNEL);
rxdr->desc = dma_zalloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
GFP_KERNEL);
if (!rxdr->desc) {
vfree(rxdr->buffer_info);
return -ENOMEM;
}
memset(rxdr->desc, 0, rxdr->size);
rxdr->next_to_clean = 0;
rxdr->next_to_use = 0;