netdev - [PATCH net-next] amd-xgbe: Let OS arch support adjust DMA mask as needed

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Message-ID: <20150120204755.23431.37523.stgit@tlendack-t1.amdoffice.net>
Date:	Tue, 20 Jan 2015 14:47:55 -0600
From:	Tom Lendacky <thomas.lendacky@....com>
To:	netdev@...r.kernel.org
Cc:	David Miller <davem@...emloft.net>
Subject: [PATCH net-next] amd-xgbe: Let OS arch support adjust DMA mask as
 needed

Set the DMA mask to 64-bit and let the underlying arch support adjust
it as appropriate based on device tree DMA ranges, etc.

Signed-off-by: Tom Lendacky <thomas.lendacky@....com>
---
 drivers/net/ethernet/amd/xgbe/xgbe-main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 32dd651..080c3a8 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -377,7 +377,7 @@ static int xgbe_probe(struct platform_device *pdev)
 	/* Set the DMA mask */
 	if (!dev->dma_mask)
 		dev->dma_mask = &dev->coherent_dma_mask;
-	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
 	if (ret) {
 		dev_err(dev, "dma_set_mask_and_coherent failed\n");
 		goto err_io;

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