Set the device's coherent_dma_mask to avoid a WARNING splat.
Please see commit 205e1b7f51e4 ("dma-mapping: warn when there is
no coherent_dma_mask").

Cc: linux-m...@lists.linux-m68k.org
Tested-by: Stan Johnson <user...@yahoo.com>
Signed-off-by: Finn Thain <fth...@telegraphics.com.au>
---
 drivers/net/ethernet/apple/macmace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/apple/macmace.c 
b/drivers/net/ethernet/apple/macmace.c
index 137cbb470af2..98292c49ecf0 100644
--- a/drivers/net/ethernet/apple/macmace.c
+++ b/drivers/net/ethernet/apple/macmace.c
@@ -203,6 +203,10 @@ static int mace_probe(struct platform_device *pdev)
        unsigned char checksum = 0;
        int err;
 
+       err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+       if (err)
+               return err;
+
        dev = alloc_etherdev(PRIV_BYTES);
        if (!dev)
                return -ENOMEM;
-- 
2.16.1

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