linux-kernel - Re: [BUGFIX 0/9] Fix bug 59501 and code improvement for dock driver

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Message-ID: <CAE9FiQX1xVJA3MZc4LndWU7kx0mxC-YPE1R8JD4W2-Gg9zq3Zw@mail.gmail.com>
Date:	Thu, 13 Jun 2013 11:42:16 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jiang Liu <jiang.liu@...wei.com>
Cc:	"Rafael J . Wysocki" <rjw@...k.pl>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Alexander E . Patrakov" <patrakov@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Yijing Wang <wangyijing@...wei.com>,
	Jiang Liu <liuj97@...il.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUGFIX 0/9] Fix bug 59501 and code improvement for dock driver

On Thu, Jun 13, 2013 at 9:32 AM, Jiang Liu <jiang.liu@...wei.com> wrote:
> Alexander E. Patrakov <patrakov@...il.com> reports two bugs related to
> dock station support on Sony VAIO VPCZ23A4R. Actually there are at least
> four bugs related to Sony VAIO VPCZ23A4R dock support.
> 1) can't correctly detect hotplug slot for dock state
> 2) resource leak on undocking
> 3) resource allocation failure for dock devices
> 4) one bug in intel_snd_hda driver
>
> The first patch fixes issue 1, and the second patch fixes issue 2.
> These two patches, if accepted, should be material for stable branches
> too.
> Patch 3-9 are code improvement for ACPI and dock driver.
>
> I have found the root cause for issue three, but still working on
> solutions, and seems can't be solve in short time. So please help
> to review and test patches for issue 1) and 2) first.

the 3) is about pci resource allocation?
because pcibios_add_bus is called too early?

If that is case, we should have something like attached patch for it.

With that, we will not need to worry about _OSC set for 3.10 etc.

Download attachment "pci_move_pcibios_add_bus_down.patch" of type "application/octet-stream" (1695 bytes)