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

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Message-ID: <5b0b4465-4402-e668-c744-5fb4439b34b0@sigmadesigns.com>
Date:   Tue, 20 Jun 2017 10:29:05 +0200
From:   Marc Gonzalez <marc_gonzalez@...madesigns.com>
To:     Bjorn Helgaas <helgaas@...nel.org>,
        Marc Zyngier <marc.zyngier@....com>
CC:     Thomas Gleixner <tglx@...utronix.de>,
        Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Liviu Dudau <liviu.dudau@....com>,
        David Laight <david.laight@...lab.com>,
        linux-pci <linux-pci@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Thibaud Cornic <thibaud_cornic@...madesigns.com>,
        LKML <linux-kernel@...r.kernel.org>, Mason <slash.tmp@...e.fr>
Subject: Re: [PATCH v5 2/3] PCI: Add tango PCIe host bridge support

On 19/06/2017 16:50, 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.)
> 
> 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?

Hello Bjorn, Marc,

Patch series v9 supersedes all previously posted patches.

Regards.