Re: udev breakages - was: Re: Need of an ".async_probe()" type ofcallback at driver's core - Was: Re: [PATCH] [media] drxk: change it to userequest_firmware_nowait()

From: Jiri Kosina
Date: Thu Oct 04 2012 - 10:36:30 EST


On Tue, 2 Oct 2012, Linus Torvalds wrote:

> Now, at the same time, I do agree that network devices should generally
> try to delay it until ifup time

Slightly tangential to the ongoing discussion, but still ... I think that
even "all network drivers should delay firmware loading to ifup time"
might be too general.

I would expect that there are network cards which require firmware to be
present for PHY to work, right? On such cards, if you want to have link
detection even on interfaces that are down (so that things like ifplugd
can detect the link presence and configure the interface), ifup is too
late.

I admit I haven't checked whether there actually are such cards out there,
but it doesn't seem to be completely unrealistic to me.

--
Jiri Kosina
SUSE Labs
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