netdev - Re: [PATCH] pxaficp-ir - remove incorrect net_device

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Message-Id: <200908220054.31438.marek.vasut@gmail.com>
Date:	Sat, 22 Aug 2009 00:54:31 +0200
From:	Marek Vasut <marek.vasut@...il.com>
To:	Alexander Beregalov <a.beregalov@...il.com>
Cc:	Eric Miao <eric.y.miao@...il.com>,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	"Russell King - ARM Linux" <linux@....linux.org.uk>,
	samuel@...tiz.org, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] pxaficp-ir - remove incorrect net_device_ops

Dne St 5. srpna 2009 16:02:34 Marek Vasut napsal(a):
> Dne St 29. července 2009 13:16:25 Alexander Beregalov napsal(a):
> > 2009/7/28 Eric Miao <eric.y.miao@...il.com>:
> > > Marek Vasut wrote:
> > >> Hi!
> > >>
> > >> This patch fixes broken pxaficp-ir. The problem was in incorrect
> > >> net_device_ops being specified which prevented the driver from
> > >> operating. The symptoms were:
> > >>  - failing ifconfig for IrLAN, resulting in
> > >>       SIOCSIFFLAGS: Cannot assign requested address
> > >>  - irattach working for IrCOMM, but the port stayed disabled
> > >>
> > >> Moreover this patch corrects missing sysfs device link.
> > >>
> > >> btw. guys, be honest, when did you last tested pxaficp-ir on real
> > >> hardware? ;-)
> > >
> > > Well, this seems to be brought by the net_device_ops change, which
> > > seems to happen silently without any of us being notified.
> > >
> > > OK, netdev and Alex are copied, so that we can look into this issue a
> > > bit deeper:
> > >
> > > 1. it looks to me that SIOCSIFFLAGS actually returned -EADDRNOTAVAIL,
> > > which is likely caused by eth_validate_addr, the default eth_addr comes
> > > with irda should be "00:00:00:00:00:00" if not explicitly specified
> > > (kzalloc), and this should be the problem, solution ?  Either give a
> > > valid address to the irda net_device or remove this
> > > 'ndo_validate_addr'. And which is a correct fix will impact on the
> > > .ndo_set_mac_address
> > >
> > > 2. '.ndo_change_mtu' ? It looks to me that Irda device doesn't care too
> > > much about the MTU, eth_change_mtu is supposed to work just fine and
> > > not to cause any side effects, and may just benefit later irda device
> > > drivers if there is a weird device happens to care about MTU
> > >
> > > - eric
> > >
> > > Marek's original patch in attachment.
> >
> > Sorry about that and thanks.
> > Then we should fix the rest of irda drivers in the same way.
>
> Hi!
> Was my patch applied or what's the current status? Thanks

Hi!
any updates ? Are we letting this into .32 in current broken state?

Thanks!
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