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From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: Keith Owens <kaos@ocs.com.au>
Subject: Re: PNPACPI probes serial twice, messes up serial console
Date: Fri, 6 Apr 2007 10:25:24 -0600
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On Wednesday 21 March 2007 22:23, Keith Owens wrote:
> The aim of the patch looks sensible, but it will not compile for
> 2.6.21-rc4.  8250_x86.c tests pnp_platform_devices, which does not
> exist.  Also the combination of CONFIG_SERIAL_8250_X86=y and
> CONFIG_SERIAL_8250_PNP=m would result in 8250_x86.o being built into
> vmlinux but referring to serial8250_nopnp in module 8250_pnp.o, kernel
> to module references are tricky.

I posted an updated series of patches a couple days ago:
  http://lkml.org/lkml/2007/4/4/540

Let me know whether they work for you.

Bjorn