linux-kernel - Re: [RFC PATCH] PCI: designware: add host

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Message-ID: <05a1f59e-b5da-7a6a-149e-7e9037deb7bd@synopsys.com>
Date:   Mon, 5 Dec 2016 10:24:33 +0000
From:   Joao Pinto <Joao.Pinto@...opsys.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        <linux-pci@...r.kernel.org>
CC:     Joao Pinto <Joao.Pinto@...opsys.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Jingoo Han <jingoohan1@...il.com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        "Javier Martinez Canillas" <javier@....samsung.com>,
        Richard Zhu <Richard.Zhu@...escale.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Murali Karicheri <m-karicheri2@...com>,
        Minghuan Lian <minghuan.Lian@...escale.com>,
        Mingkai Hu <mingkai.hu@...escale.com>,
        Roy Zang <tie-fei.zang@...escale.com>,
        "Thomas Petazzoni" <thomas.petazzoni@...e-electrons.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Pratyush Anand <pratyush.anand@...il.com>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-samsung-soc@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>, <linux-arm-msm@...r.kernel.org>
Subject: Re: [RFC PATCH] PCI: designware: add host_init() error handling

Às 11:51 AM de 12/2/2016, Srinivas Kandagatla escreveu:
> 
> 
> On 02/12/16 10:32, Joao Pinto wrote:
>>
>> Hi Srinivas,
>>
>> Às 11:51 AM de 12/1/2016, Srinivas Kandagatla escreveu:
>>>  drivers/pci/host/pci-dra7xx.c           |  4 +++-
>>>  drivers/pci/host/pci-exynos.c           |  4 +++-
>>>  drivers/pci/host/pci-imx6.c             |  4 +++-
>>>  drivers/pci/host/pci-keystone.c         |  4 +++-
>>>  drivers/pci/host/pci-layerscape.c       | 12 ++++++++----
>>>  drivers/pci/host/pcie-armada8k.c        |  4 +++-
>>>  drivers/pci/host/pcie-designware-plat.c |  4 +++-
>>>  drivers/pci/host/pcie-designware.c      |  4 +++-
>>>  drivers/pci/host/pcie-designware.h      |  2 +-
>>>  drivers/pci/host/pcie-qcom.c            |  6 ++++--
>>>  drivers/pci/host/pcie-spear13xx.c       |  4 +++-
>>>  11 files changed, 37 insertions(+), 15 deletions(-)
>>>
>>
>> Thanks for the patch!
>>
>> In my opinion your idea is good but only qcom driver is able to detect failure
>> in the specific host init routine, all others have a 'return 0' even if
>> something not well init. I would recomend that we take this issue a bit further
>> and add the error checking to all specific pci drivers in order to make them as
>> robust as qcom'.
> I totally agree with you, I can give this a go in next version.

Sure, but I think it would be better to finish now since we are on top of the
task. I can help you if you need.

Thanks Joao

> 
> Thanks,
> srini
> 
>>
>> Thanks,
>> Joao
>>