net: ethernet: ixp4xx: Set the DMA masks explicitly

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The former fix only papered over the actual problem: the
ethernet core expects the netdev .dev member to have the
proper DMA masks set, or there will be BUG_ON() triggered
in kernel/dma/mapping.c.

Fix this by simply copying dma_mask and dma_mask_coherent
from the parent device.

Fixes: e45d0fad4a ("net: ethernet: ixp4xx: Use parent dev for DMA pool")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Linus Walleij 2021-04-18 20:28:53 +02:00 • committed by David S. Miller

parent ed8157f1eb

commit 8d892d6094

1 changed files with 4 additions and 1 deletions

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5

drivers/net/ethernet/xscale/ixp4xx_eth.c

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