netdev - Re: Bug: mv643xxx fails with highmem

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Message-Id: <20141211.152756.1471877201690056873.davem@davemloft.net>
Date:	Thu, 11 Dec 2014 15:27:56 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	linux@....linux.org.uk
Cc:	B38611@...escale.com, fabio.estevam@...escale.com,
	ezequiel.garcia@...e-electrons.com, netdev@...r.kernel.org
Subject: Re: Bug: mv643xxx fails with highmem

From: Russell King - ARM Linux <linux@....linux.org.uk>
Date: Thu, 11 Dec 2014 20:25:07 +0000

> Would other drivers need fixing for this as well?  Eg, fec_main.c
> does the following, and this driver is used on iMX6 which can also have
> highmem:
> 
> static int
> fec_enet_txq_submit_frag_skb(struct fec_enet_priv_tx_q *txq,
>                              struct sk_buff *skb,
>                              struct net_device *ndev)
> {
>                 bufaddr = page_address(this_frag->page.p) + this_frag->page_offset;
> ...
>                 addr = dma_map_single(&fep->pdev->dev, bufaddr, frag_len,
>                                       DMA_TO_DEVICE);

Probably, yes.
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