linux-kernel - Re: [PATCH] Enable legacy support for serial ports when SERIAL_8250

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Message-Id: <200707111507.25412.bjorn.helgaas@hp.com>
Date:	Wed, 11 Jul 2007 15:07:25 -0600
From:	Bjorn Helgaas <bjorn.helgaas@...com>
To:	Luca <kronos.it@...il.com>
Cc:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Enable legacy support for serial ports when SERIAL_8250_PNP is disabled

On Wednesday 11 July 2007 01:40:07 pm Luca wrote:
> On 7/9/07, Bjorn Helgaas <bjorn.helgaas@...com> wrote:
> > On Monday 09 July 2007 11:30:59 am Luca wrote:
> > > On 7/9/07, Bjorn Helgaas <bjorn.helgaas@...com> wrote:
> > > > If you turn off
> > > > PNP completely, you will have "pnp_platform_devices == 0", and the
> > > > existing code will do what you need.
> > >
> > > Well for me it's a non-issue, I'm able to "work-around" it in many
> > > ways. My point is that a configuration that used to work and is still
> > > valid suddenly doesn't work anymore.
> >
> > You're right about that, and it is a legitimate issue.  But given the
> > fact that (PNP && !SERIAL_8250_PNP) should be relatively unusual, my
> > opinion is that it's not worth extra ifdefs in legacy_serial.c.
> >
> > If you have to use any workarounds like "legacy_serial.force", I think
> > that's a bug, and I'll fix it.
> 
> Ok, I double-checked: the serial port is usable during boot with PNP
> enabled, so no problem with dropping my patch.

Thanks a lot for checking!

Bjorn
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