From: Krzysztof Halasa <khc@pm.waw.pl>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: netdev@vger.kernel.org, Imre Kaloz <kaloz@openwrt.org>,
Xi Wang <xi.wang@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: ixp4xx eth broken in 3.7.0/3.8-rc5?
Date: Thu, 31 Jan 2013 22:54:54 +0100 [thread overview]
Message-ID: <m3622duifl.fsf@intrepid.localdomain> (raw)
In-Reply-To: <20744.25884.660535.514911@pilspetsen.it.uu.se> (Mikael Pettersson's message of "Wed, 30 Jan 2013 01:11:08 +0100")
Mikael Pettersson <mikpe@it.uu.se> writes:
> > When I try to update my ixp4xx machine to a 3.8-rc5 kernel it boots
> > Ok but the network (CONFIG_IXP4XX_ETH=y) fails to come up, with the
> > following in the kernel log:
> >
> > net eth0: coherent DMA mask is unset
>
> A git bisect identified the following as the culprit:
>
> > From 1a4901177574083c35fafc24c4d151c2a7c7647c Mon Sep 17 00:00:00 2001
> > From: Xi Wang <xi.wang@gmail.com>
> > Date: Sat, 17 Nov 2012 20:25:09 +0000
> > Subject: [PATCH] ixp4xx_eth: avoid calling dma_pool_create() with NULL dev
> >
> > Use &port->netdev->dev instead of NULL since dma_pool_create() doesn't
> > allow NULL dev.
IIRC NULL dev in dma_pool_create() meant the usual IXP4xx mask (64MB)
was used. Perhaps devices don't get a mask by default anymore. I will
look at this in few days.
--
Krzysztof Halasa
prev parent reply other threads:[~2013-01-31 21:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20744.9777.937924.822371@pilspetsen.it.uu.se>
2013-01-30 0:11 ` ixp4xx eth broken in 3.7.0/3.8-rc5? Mikael Pettersson
2013-01-30 0:32 ` Xi Wang
2013-01-30 1:34 ` Ben Hutchings
2013-01-30 10:11 ` Mikael Pettersson
2013-01-30 20:50 ` Mikael Pettersson
2013-01-31 21:54 ` Krzysztof Halasa [this message]
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