From: Bjorn Helgaas <bhelgaas@google.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Tony Luck <tony.luck@intel.com>,
David Miller <davem@davemloft.net>, x86 <x86@kernel.org>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH 05/21] resource: adjust_resource handle resource without parent
Date: Fri, 18 May 2012 12:06:42 -0600 [thread overview]
Message-ID: <CAErSpo79gZFGOGdA201r1aAPzE9a1=CtFK7XPbsOjVvRLfNJ3A@mail.gmail.com> (raw)
In-Reply-To: <CAE9FiQUebVR_AdhQVE_Hq-RhB7h5AfH0Z20WaZh=ky5vHEt5BQ@mail.gmail.com>
On Fri, May 18, 2012 at 11:54 AM, Yinghai Lu <yinghai@kernel.org> wrote:
> On Fri, May 18, 2012 at 10:12 AM, Bjorn Helgaas <bhelgaas@google.com> wrote:
>> On Mon, May 7, 2012 at 2:29 PM, Yinghai Lu <yinghai@kernel.org> wrote:
>
>> Where does this case occur? When do you need to adjust a resource
>> that has no parent?
>
> for unassigned pci bridge from BIOS, before scan busn_res.end is 0xff,
> so you can not insert them, because the bridge could in the middle.
> Have to update the busn_res.end and insert after the bridge is scanned
Does the resource have children in this case? If it has no parent,
it's not in the resource tree at all, is it? Is there any reason to
use adjust_resource() rather than just updating res->start and
res->end directly?
next prev parent reply other threads:[~2012-05-18 18:06 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-07 20:29 [PATCH 00/21] PCI: use busn_res to replace bus secondary/subordinate Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 01/21] PCI: add busn_res into struct pci_bus Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 02/21] PCI: replace secondary/subordinate with busn_res Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 03/21] PCI: Remove secondary/subordinate in struct ci_bus Yinghai Lu
2012-05-07 20:29 ` [PATCH 04/21] PCI: Add busn_res for pci domain Yinghai Lu
2012-05-07 20:29 ` [PATCH 05/21] resource: adjust_resource handle resource without parent Yinghai Lu
2012-05-18 17:12 ` Bjorn Helgaas
2012-05-18 17:54 ` Yinghai Lu
2012-05-18 18:06 ` Bjorn Helgaas [this message]
2012-05-18 18:06 ` Bjorn Helgaas
2012-05-07 20:29 ` [PATCH 06/21] PCI: Add busn_res operation functions Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 07/21] PCI: print conflicting entry in busn_res inserting Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 08/21] PCI: release busn_res when removing bus Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 09/21] PCI: Insert busn_res in pci_create_root_bus() Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 10/21] PCI: checking busn_res in pci_scan_root_bus() Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 11/21] PCI: Add default busn_resource Yinghai Lu
2012-05-07 20:29 ` [PATCH 12/21] PCI: Add default busn_res for pci_scan_bus() Yinghai Lu
2012-05-07 20:29 ` [PATCH 13/21] x86/PCI: add busn_res into resources list for ACPI path Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:29 ` [PATCH 14/21] x86/PCI: put busn resource in pci_root_info for native host bridge drivers Yinghai Lu
2012-05-07 20:29 ` Yinghai Lu
2012-05-07 20:30 ` [PATCH 15/21] ia64/PCI: register busn_res for root buses Yinghai Lu
2012-05-07 20:30 ` Yinghai Lu
2012-05-07 20:30 ` [PATCH 16/21] sparc/PCI: " Yinghai Lu
2012-05-07 20:30 ` Yinghai Lu
2012-05-07 20:43 ` David Miller
2012-05-07 20:30 ` [PATCH 17/21] powerpc/PCI: " Yinghai Lu
2012-05-07 20:30 ` [PATCH 18/21] parisc/PCI: " Yinghai Lu
2012-05-07 20:30 ` [PATCH 19/21] tile/PCI: Use pci_scan_root_bus instead pci_scan_bus Yinghai Lu
2012-05-09 19:32 ` Chris Metcalf
2012-05-09 19:45 ` Yinghai Lu
2012-05-07 20:30 ` [PATCH 20/21] PCI: Register busn_res for iov bus Yinghai Lu
2012-05-07 20:30 ` Yinghai Lu
2012-05-07 20:30 ` [PATCH 21/21] PCI: insert busn_res for child bus Yinghai Lu
2012-05-17 22:19 ` [PATCH 00/21] PCI: use busn_res to replace bus secondary/subordinate Bjorn Helgaas
2012-05-18 2:13 ` Yinghai Lu
2012-05-18 23:32 ` Bjorn Helgaas
2012-05-18 23:32 ` Bjorn Helgaas
2012-05-19 4:38 ` Yinghai Lu
2012-05-19 4:38 ` Yinghai Lu
2012-05-21 20:06 ` Bjorn Helgaas
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