From: Greg Ungerer <gerg@uclinux.org>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <liuj97@gmail.com>, Yinghai Lu <yinghai@kernel.org>,
Jiang Liu <jiang.liu@huawei.com>,
"Rafael J . Wysocki" <rjw@sisk.pl>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Gu Zheng <guz.fnst@cn.fujitsu.com>,
Toshi Kani <toshi.kani@hp.com>,
Myron Stowe <myron.stowe@redhat.com>,
Yijing Wang <wangyijing@huawei.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
linux-m68k@lists.linux-m68k.org,
Guan Xuetao <gxt@mprc.pku.edu.cn>
Subject: Re: [PATCH v3, part1 07/10] PCI, unicore, m68k: remove redundant call of pci_bus_add_devices()
Date: Thu, 06 Jun 2013 16:54:17 +1000 [thread overview]
Message-ID: <51B03219.4020602@uclinux.org> (raw)
In-Reply-To: <CAErSpo7Lbu_MuxYGa6sghu7xuDJ9ZFN8pK0=xM0QMOwr=P2Y_Q@mail.gmail.com>
Hi Bjorn,
On 06/06/13 07:31, Bjorn Helgaas wrote:
> [+cc m68k and unicore32 maintainers]
>
> On Sat, May 25, 2013 at 7:48 AM, Jiang Liu <liuj97@gmail.com> wrote:
>> pci_scan_bus() and pci_scan_root_bus() has called pci_bus_add_devices()
>> once, so remove the redundant call of pci_bus_add_devices().
>> On the other handle, subsys_init() callbacks will be invoked before
>> device_init() callbacks, so it should be safe to remove the redundant
>> calls.
>>
>> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
>> ---
>> arch/m68k/platform/coldfire/pci.c | 2 +-
>> arch/unicore32/kernel/pci.c | 5 -----
>> 2 files changed, 1 insertion(+), 6 deletions(-)
>
> m68k and unicore32 guys:
>
> I plan to apply the patch below. I actually split it into two, one
> for m68k and another for unicore32. If you object or would rather
> push it through your trees, let me know. I don't think the rest of
> the series has any actual dependency on this, so there shouldn't be
> any problem if you want to take it yourselves.
I have no objection for m68k, feel free to push it through your tree.
I can't test the change in a board that has a PCI card in it right at
the moment, but otherwise:
Acked-by: Greg Ungerer <gerg@uclinux.org>
Regards
Greg
> Bjorn
>
>> diff --git a/arch/m68k/platform/coldfire/pci.c b/arch/m68k/platform/coldfire/pci.c
>> index 8572246..2345972 100644
>> --- a/arch/m68k/platform/coldfire/pci.c
>> +++ b/arch/m68k/platform/coldfire/pci.c
>> @@ -320,7 +320,7 @@ static int __init mcf_pci_init(void)
>> pci_bus_size_bridges(rootbus);
>> pci_bus_assign_resources(rootbus);
>> pci_enable_bridges(rootbus);
>> - pci_bus_add_devices(rootbus);
>> +
>> return 0;
>> }
>>
>> diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
>> index ef69c0c..374a055 100644
>> --- a/arch/unicore32/kernel/pci.c
>> +++ b/arch/unicore32/kernel/pci.c
>> @@ -277,11 +277,6 @@ static int __init pci_common_init(void)
>> pci_bus_assign_resources(puv3_bus);
>> }
>>
>> - /*
>> - * Tell drivers about devices found.
>> - */
>> - pci_bus_add_devices(puv3_bus);
>> -
>> return 0;
>> }
>> subsys_initcall(pci_common_init);
>> --
>> 1.8.1.2
>>
> --
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>
next prev parent reply other threads:[~2013-06-06 7:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-25 13:48 [PATCH v3, part1 00/10] Prepare for introducing PCI bus lock interfaces Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 01/10] PCI: introduce pci_bus_{get|put}() to manage PCI bus reference count Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 02/10] PCI: Introduce pci_alloc_dev(struct pci_bus*) to replace alloc_pci_dev() Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 03/10] PCI: Convert alloc_pci_dev(void) to pci_alloc_dev(bus) instead Jiang Liu
2013-06-05 20:07 ` Bjorn Helgaas
2013-06-06 16:16 ` Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 04/10] PCI: mark pci_scan_bus_parented() as __deprecated Jiang Liu
2013-05-31 20:12 ` Chris Metcalf
2013-06-05 20:04 ` Bjorn Helgaas
2013-06-06 16:32 ` Jiang Liu
2013-06-07 14:37 ` Konrad Rzeszutek Wilk
2013-06-07 15:11 ` Jiang Liu
2013-06-07 15:30 ` Jiang Liu
2013-06-07 20:37 ` Bjorn Helgaas
2013-05-25 13:48 ` [PATCH v3, part1 05/10] PCI, IA64: minor code clean up Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 06/10] PCI: make PCI host bridge/bus creating and destroying logic symmetric Jiang Liu
2013-06-05 20:14 ` Bjorn Helgaas
2013-06-06 17:10 ` [PATCH 1/2] PCI: fix a double free issue in pci_create_root_bus() error recovery path Jiang Liu
2013-06-08 1:42 ` Bjorn Helgaas
2013-06-06 17:10 ` [PATCH 2/2] PCI: make PCI host bridge/bus creating and destroying logic symmetric Jiang Liu
2013-06-06 20:01 ` Yinghai Lu
2013-06-08 1:51 ` Bjorn Helgaas
2013-06-08 7:01 ` Yinghai Lu
2013-06-14 23:53 ` Bjorn Helgaas
2013-06-15 1:46 ` Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 07/10] PCI, unicore, m68k: remove redundant call of pci_bus_add_devices() Jiang Liu
2013-06-05 21:31 ` Bjorn Helgaas
2013-06-06 6:54 ` Greg Ungerer [this message]
2013-05-25 13:48 ` [PATCH v3, part1 08/10] PCI, IOV: don't touch bus->is_added flag Jiang Liu
2013-05-25 13:48 ` [PATCH v3, part1 09/10] PCI, IOV: simplify IOV implementation Jiang Liu
2013-05-28 2:00 ` Yinghai Lu
2013-05-28 14:48 ` Liu Jiang
2013-05-30 4:31 ` [PATCH] PCI, IOV: fix a resource leakage on error recovery path Jiang Liu
2013-05-30 18:24 ` Bjorn Helgaas
2013-05-25 13:48 ` [PATCH v3, part1 10/10] PCI, IOV: hide remove and rescan sysfs interfaces for SR-IOV virtual functions Jiang Liu
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