Re: [PATCH 7/7] net: fec_imx: Do not use DMA coherent memory for Rx buffers

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Hello,

On Mon, Sep 17, 2018 at 10:21:22PM -0700, Andrey Smirnov wrote:
> Trying to do unaligned access of coherent memory on AArch64 will lead
> to an abort and some parts of our IP stack will do exactly that with
> received packet buffer by using memcpy() to extracts parts of it.
> 
> Convert the driver to use regular memory for received data buffers to
> prevent the issue from happening.

I didn't spend time yet to debug, but this commit is pointed out to
break nfs booting on an mx28evk board.

Maybe someone spots the obvious problem before I come around to fix
this.

Best regards
Uwe


-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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