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Groups > linux.kernel > #1669162 > unrolled thread

Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support

Started byMarc Gonzalez <marc_gonzalez@sigmadesigns.com>
First post2017-06-19 17:00 +0200
Last post2017-06-19 18:20 +0200
Articles 4 — 2 participants

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  Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support Marc Gonzalez <marc_gonzalez@sigmadesigns.com> - 2017-06-19 17:00 +0200
    Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support Marc Zyngier <marc.zyngier@arm.com> - 2017-06-19 18:00 +0200
      Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support Marc Gonzalez <marc_gonzalez@sigmadesigns.com> - 2017-06-19 18:10 +0200
        Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support Marc Zyngier <marc.zyngier@arm.com> - 2017-06-19 18:20 +0200

#1669162 — Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support

FromMarc Gonzalez <marc_gonzalez@sigmadesigns.com>
Date2017-06-19 17:00 +0200
SubjectRe: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support
Message-ID<tU6jN-3YD-51@gated-at.bofh.it>
On 07/06/2017 10:19, Marc Gonzalez wrote:

> On 31/05/2017 15:33, Marc Gonzalez wrote:
> 
>> +static int tango_pcie_probe(struct platform_device *pdev)
>> +{
>> +	int ret = -EINVAL;
>> +	void __iomem *base;
>> +	struct resource *res;
>> +	struct tango_pcie *pcie;
>> +	struct device *dev = &pdev->dev;
>> +
>> +	pr_err("MAJOR ISSUE: PCIe config and mem spaces are muxed\n");
>> +	pr_err("Tainting kernel... Use driver at your own risk\n");
>> +	add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
> 
> Hello Bjorn,
> 
> In v4, your only comment was
> "[muxing config and mem spaces] is a major issue and possibly even
> a security problem [which requires at least an error message and a
> kernel taint].
> 
> Were there any other issues with the host bridge support?

Hello Bjorn,

I imagine you are now only waiting for Marc Z's Ack of patch 3/3 ?
(AFAIU, all issues have been addressed as of v8 3/3.)

Rob has Acked patch 1/3 -- thanks Rob.

Assuming all issues with patch 2/3 have already been addressed,
then this driver can land in time for 4.13 right?

Regards.

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#1669388

FromMarc Zyngier <marc.zyngier@arm.com>
Date2017-06-19 18:00 +0200
Message-ID<tU7fR-4Bo-29@gated-at.bofh.it>
In reply to#1669162
On 19/06/17 15:50, Marc Gonzalez wrote:
> On 07/06/2017 10:19, Marc Gonzalez wrote:
> 
>> On 31/05/2017 15:33, Marc Gonzalez wrote:
>>
>>> +static int tango_pcie_probe(struct platform_device *pdev)
>>> +{
>>> +	int ret = -EINVAL;
>>> +	void __iomem *base;
>>> +	struct resource *res;
>>> +	struct tango_pcie *pcie;
>>> +	struct device *dev = &pdev->dev;
>>> +
>>> +	pr_err("MAJOR ISSUE: PCIe config and mem spaces are muxed\n");
>>> +	pr_err("Tainting kernel... Use driver at your own risk\n");
>>> +	add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
>>
>> Hello Bjorn,
>>
>> In v4, your only comment was
>> "[muxing config and mem spaces] is a major issue and possibly even
>> a security problem [which requires at least an error message and a
>> kernel taint].
>>
>> Were there any other issues with the host bridge support?
> 
> Hello Bjorn,
> 
> I imagine you are now only waiting for Marc Z's Ack of patch 3/3 ?
> (AFAIU, all issues have been addressed as of v8 3/3.)

Posting partial series is really not ideal, specially as you posted 3 of
them in less than 24 hours (and the latest was only 5 days ago).

The maintainer is not going to chase you about potentially missing
patches...

	M.
-- 
Jazz is not dead. It just smells funny...

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#1669413

FromMarc Gonzalez <marc_gonzalez@sigmadesigns.com>
Date2017-06-19 18:10 +0200
Message-ID<tU7py-4Ul-53@gated-at.bofh.it>
In reply to#1669388
On 19/06/2017 17:58, Marc Zyngier wrote:
> On 19/06/17 15:50, Marc Gonzalez wrote:
>> On 07/06/2017 10:19, Marc Gonzalez wrote:
>>
>>> On 31/05/2017 15:33, Marc Gonzalez wrote:
>>>
>>>> +static int tango_pcie_probe(struct platform_device *pdev)
>>>> +{
>>>> +	int ret = -EINVAL;
>>>> +	void __iomem *base;
>>>> +	struct resource *res;
>>>> +	struct tango_pcie *pcie;
>>>> +	struct device *dev = &pdev->dev;
>>>> +
>>>> +	pr_err("MAJOR ISSUE: PCIe config and mem spaces are muxed\n");
>>>> +	pr_err("Tainting kernel... Use driver at your own risk\n");
>>>> +	add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
>>>
>>> Hello Bjorn,
>>>
>>> In v4, your only comment was
>>> "[muxing config and mem spaces] is a major issue and possibly even
>>> a security problem [which requires at least an error message and a
>>> kernel taint].
>>>
>>> Were there any other issues with the host bridge support?
>>
>> Hello Bjorn,
>>
>> I imagine you are now only waiting for Marc Z's Ack of patch 3/3 ?
>> (AFAIU, all issues have been addressed as of v8 3/3.)
> 
> Posting partial series is really not ideal, specially as you posted 3 of
> them in less than 24 hours (and the latest was only 5 days ago).
> 
> The maintainer is not going to chase you about potentially missing
> patches...

So the best course would be posting a new series with all patches
bumped to v8 then?

Regards.

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#1669439

FromMarc Zyngier <marc.zyngier@arm.com>
Date2017-06-19 18:20 +0200
Message-ID<tU7zd-4Y3-29@gated-at.bofh.it>
In reply to#1669413
On 19/06/17 17:01, Marc Gonzalez wrote:
> On 19/06/2017 17:58, Marc Zyngier wrote:
>> On 19/06/17 15:50, Marc Gonzalez wrote:
>>> On 07/06/2017 10:19, Marc Gonzalez wrote:
>>>
>>>> On 31/05/2017 15:33, Marc Gonzalez wrote:
>>>>
>>>>> +static int tango_pcie_probe(struct platform_device *pdev)
>>>>> +{
>>>>> +	int ret = -EINVAL;
>>>>> +	void __iomem *base;
>>>>> +	struct resource *res;
>>>>> +	struct tango_pcie *pcie;
>>>>> +	struct device *dev = &pdev->dev;
>>>>> +
>>>>> +	pr_err("MAJOR ISSUE: PCIe config and mem spaces are muxed\n");
>>>>> +	pr_err("Tainting kernel... Use driver at your own risk\n");
>>>>> +	add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
>>>>
>>>> Hello Bjorn,
>>>>
>>>> In v4, your only comment was
>>>> "[muxing config and mem spaces] is a major issue and possibly even
>>>> a security problem [which requires at least an error message and a
>>>> kernel taint].
>>>>
>>>> Were there any other issues with the host bridge support?
>>>
>>> Hello Bjorn,
>>>
>>> I imagine you are now only waiting for Marc Z's Ack of patch 3/3 ?
>>> (AFAIU, all issues have been addressed as of v8 3/3.)
>>
>> Posting partial series is really not ideal, specially as you posted 3 of
>> them in less than 24 hours (and the latest was only 5 days ago).
>>
>> The maintainer is not going to chase you about potentially missing
>> patches...
> 
> So the best course would be posting a new series with all patches
> bumped to v8 then?

No, because there is still the ambiguity of *which* v8 that is. Post a
v9 that supersedes all the previously posted patches.

	M.
-- 
Jazz is not dead. It just smells funny...

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