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Re: [PATCH 2/2] cfg80211: fix wireless handlers assignment

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On Sun, 27 Sep 2009, Hugh Dickins wrote:
> 
> I've experimented by moving your NETDEV_PRE_INIT hunk later in the
> sequence, just before the netdev_initialize_kobject(dev) (so I also
> changed the "goto out" to "goto err_uninit"): both* machines then boot
> correctly, and this mail leaves me wirelessly.
> 
> I'll now experiment to see how early I can move that hunk.

Both machines boot (and do wireless) correctly with your NETDEV_PRE_INIT
hunk placed just after the ndo_init block, instead of just before where
you placed it.  That's i386 kernels on both.

But curiouser and curiouser... the laptop can do 64-bit, so I built
my 64-bit kernel, and went through the motions to reproduce the
early boot crash with the patch as you had it: but the x86_64 kernel
boots (and does wireless) correctly with the NETDEV_PRE_INIT hunk
just where you placed it, before the ndo_init block.

Perhaps there's a difference in the 32- and 64-bit startup sequence
with respect to notifiers; or perhaps your change tickles another bug.
I don't know, I'm turning off now.

Hugh
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