Re: [PATCH] x86: usb debug port early console v2

From: Greg KH
Date: Wed Jul 23 2008 - 19:24:39 EST


On Wed, Jul 23, 2008 at 03:54:09PM -0700, Yinghai Lu wrote:
> On Wed, Jul 23, 2008 at 3:45 PM, Greg KH <greg@xxxxxxxxx> wrote:
> > On Wed, Jul 23, 2008 at 02:00:53PM -0700, Yinghai Lu wrote:
> >> --- linux-2.6.orig/drivers/usb/host/ehci.h
> >> +++ linux-2.6/drivers/usb/host/ehci.h
> >
> > I don't understand the issue of any of these #ifdefs here. Why are they
> > needed?
>
> In file included from arch/x86/kernel/early_printk.c:19:
> arch/x86/kernel/../../../drivers/usb/host/ehci.h:109: error: field
> 'iaa_watchdog' has incomplete type

Ah, so you are papering over the real problem here, right?

Why not just include the properly needed #includes either where you are
including this header file, or add the dependancies to the ehci.h file
itself (which is usually preferred.)

> > And shouldn't there be a separate config option for early printk through
> > the ehci debug port?
>
> under usb or processor?

Somewhere.

Also, usb patches should be cc:ed to the linux-usb mailing list. I'm
sure the EHCI authors would like to comment on this patch...

thanks,

greg k-h
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