diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2018-08-01 22:10:15 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-01 20:00:53 +0200 |
| commit | 5298ff58c93e0d7b7d67b8525e7c18a9478cbd8d (patch) | |
| tree | 48af8056cb55b6429fef0840619310ccfaf22eb4 | |
| parent | 500cc548c8ebe7494ba37673c3ec1faa342858c3 (diff) | |
drivers/staging/mt7621-eth: Use dma_zalloc_coherent to replace dma_alloc_coherent+memset
we prefer to use dma_zalloc_coherent rather than dam_alloc_coherent+memset
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/mt7621-eth/mtk_eth_soc.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/staging/mt7621-eth/mtk_eth_soc.c b/drivers/staging/mt7621-eth/mtk_eth_soc.c index f9b593ca2bcf..713507558568 100644 --- a/drivers/staging/mt7621-eth/mtk_eth_soc.c +++ b/drivers/staging/mt7621-eth/mtk_eth_soc.c @@ -1396,14 +1396,13 @@ static int mtk_qdma_tx_alloc_tx(struct mtk_eth *eth) if (!ring->tx_buf) goto no_tx_mem; - ring->tx_dma = dma_alloc_coherent(eth->dev, + ring->tx_dma = dma_zalloc_coherent(eth->dev, ring->tx_ring_size * sz, &ring->tx_phys, GFP_ATOMIC | __GFP_ZERO); if (!ring->tx_dma) goto no_tx_mem; - memset(ring->tx_dma, 0, ring->tx_ring_size * sz); for (i = 0; i < ring->tx_ring_size; i++) { int next = (i + 1) % ring->tx_ring_size; u32 next_ptr = ring->tx_phys + next * sz; |