linux-kernel - Re: Regression in 3.10.80 vs. 3.10.79

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Message-ID: <CAL1RGDWBd9Y_KLoT+DZX0Js+y9C8c4mTj9b3n+-8C=_vE0=pPw@mail.gmail.com>
Date:	Tue, 9 Jun 2015 16:51:35 -0700
From:	Roland Dreier <roland@...estorage.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	George McCollister <george.mccollister@...il.com>
Subject: Re: Regression in 3.10.80 vs. 3.10.79

On Tue, Jun 9, 2015 at 4:43 PM, Roland Dreier <roland@...estorage.com> wrote:
> I understand that the change here fixed another regression, but I'm
> wondering if there's a way to make everyone happy here?  I can provide
> debugging info from my system as required...

Maybe sent my mail too quickly, as I have some thoughts after looking
at the code.

>From the link order, drivers/acpi init wll be called before
drivers/pnp init, right?  In my case, the acpi resources ("ACPI
PM1a_EVT_BLK") etc are under a pnp bus.  But if acpi requests the
resources first, then pnp can't request the enclosing range.

Is the right fix to make sure the pnp init happens before acpi
requests resources?
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