[PATCH 2/3] net: mediatek: remove incorrect dma_mask assignment

From: Arnd Bergmann
Date: Mon Mar 14 2016 - 10:08:19 EST


Device drivers should not mess with the DMA mask directly,
but instead call dma_set_mask() etc if needed.

In case of the mtk_eth_soc driver, the mask already gets set
correctly when the device is created, and setting it again
is against the documented API.

This removes the incorrect setting.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 3e42204adfe5..87f417712da0 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1676,9 +1676,6 @@ static int mtk_probe(struct platform_device *pdev)
struct mtk_eth *eth;
int err;

- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
- pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-
device_reset(&pdev->dev);

match = of_match_device(of_mtk_match, &pdev->dev);
--
2.7.0