Merge tag 'remove-dma_zalloc_coherent-5.0' of git://git.infradead.org/users/hch/dma-mapping

Pull dma_zalloc_coherent() removal from Christoph Hellwig:
 "We've always had a weird situation around dma_zalloc_coherent. To
  safely support mapping the allocations to userspace major
  architectures like x86 and arm have always zeroed allocations from
  dma_alloc_coherent, but a couple other architectures were missing that
  zeroing either always or in corner cases.

  Then later we grew anothe dma_zalloc_coherent interface to explicitly
  request zeroing, but that just added __GFP_ZERO to the allocation
  flags, which for some allocators that didn't end up using the page
  allocator ended up being a no-op and still not zeroing the
  allocations.

  So for this merge window I fixed up all remaining architectures to
  zero the memory in dma_alloc_coherent, and made dma_zalloc_coherent a
  no-op wrapper around dma_alloc_coherent, which fixes all of the above
  issues.

  dma_zalloc_coherent is now pointless and can go away, and Luis helped
  me writing a cocchinelle script and patch series to kill it, which I
  think we should apply now just after -rc1 to finally settle these
  issue"

* tag 'remove-dma_zalloc_coherent-5.0' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: remove dma_zalloc_coherent()
  cross-tree: phase out dma_zalloc_coherent() on headers
  cross-tree: phase out dma_zalloc_coherent()

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
index 690aee88f0eb..6d22dd500790 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
@@ -400,9 +400,9 @@ static int init_tx_ring(struct device *dev, u8 queue_no,
 	}
 
 	/* allocate memory for TX descriptors */
-	tx_ring->dma_tx = dma_zalloc_coherent(dev,
-					      tx_rsize * sizeof(struct sxgbe_tx_norm_desc),
-					      &tx_ring->dma_tx_phy, GFP_KERNEL);
+	tx_ring->dma_tx = dma_alloc_coherent(dev,
+					     tx_rsize * sizeof(struct sxgbe_tx_norm_desc),
+					     &tx_ring->dma_tx_phy, GFP_KERNEL);
 	if (!tx_ring->dma_tx)
 		return -ENOMEM;
 
@@ -479,9 +479,9 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no,
 	rx_ring->queue_no = queue_no;
 
 	/* allocate memory for RX descriptors */
-	rx_ring->dma_rx = dma_zalloc_coherent(priv->device,
-					      rx_rsize * sizeof(struct sxgbe_rx_norm_desc),
-					      &rx_ring->dma_rx_phy, GFP_KERNEL);
+	rx_ring->dma_rx = dma_alloc_coherent(priv->device,
+					     rx_rsize * sizeof(struct sxgbe_rx_norm_desc),
+					     &rx_ring->dma_rx_phy, GFP_KERNEL);
 
 	if (rx_ring->dma_rx == NULL)
 		return -ENOMEM;