linux-kernel - Re: linux-next: build failure after merge of the pci tree

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Date:   Thu, 1 Feb 2018 16:52:01 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Niklas Cassel <niklas.cassel@...s.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
CC:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Cyrille Pitchen <cyrille.pitchen@...e-electrons.com>
Subject: Re: linux-next: build failure after merge of the pci tree

Hi Niklas,

On Thursday 01 February 2018 04:46 PM, Niklas Cassel wrote:
> On Thu, Feb 01, 2018 at 11:10:54AM +0000, Lorenzo Pieralisi wrote:
>> On Thu, Feb 01, 2018 at 09:56:09AM +0100, Niklas Cassel wrote:
>>> On Thu, Feb 01, 2018 at 10:51:14AM +1100, Stephen Rothwell wrote:
>>>> Hi Bjorn,
>>>>
>>>> After merging the pci tree, today's linux-next build (arm
>>>> multi_v7_defconfig) failed like this:
>>>>
>>>> drivers/pci/dwc/pcie-designware-ep.c: In function 'dw_pcie_ep_raise_msi_irq':
>>>> drivers/pci/dwc/pcie-designware-ep.c:293:8: error: too few arguments to function 'dw_pcie_ep_map_addr'
>>>>   ret = dw_pcie_ep_map_addr(epc, ep->msi_mem_phys, msg_addr,
>>>>         ^~~~~~~~~~~~~~~~~~~
>>>> drivers/pci/dwc/pcie-designware-ep.c:177:12: note: declared here
>>>>  static int dw_pcie_ep_map_addr(struct pci_epc *epc, u8 func_no,
>>>>             ^~~~~~~~~~~~~~~~~~~
>>>> drivers/pci/dwc/pcie-designware-ep.c:300:2: error: too few arguments to function 'dw_pcie_ep_unmap_addr'
>>>>   dw_pcie_ep_unmap_addr(epc, ep->msi_mem_phys);
>>>>   ^~~~~~~~~~~~~~~~~~~~~
>>>> drivers/pci/dwc/pcie-designware-ep.c:161:13: note: declared here
>>>>  static void dw_pcie_ep_unmap_addr(struct pci_epc *epc, u8 func_no,
>>>>              ^~~~~~~~~~~~~~~~~~~~~
>>>>
>>>> Caused by commit
>>>>
>>>>   4494738de0d9 ("PCI: endpoint: Add the function number as argument to EPC ops")
>>>>
>>>> interacting with commit
>>>>
>>>>   6f6d7873711c ("PCI: designware-ep: Add generic function for raising MSI irq")
>>>>
>>>> This should have been fixed up in commit
>>>>
>>>>   26b259ab4fe8 ("Merge remote-tracking branch 'lorenzo/pci/dwc' into next")
>>>>
>>>> I have used the pci tree from next-20180131 for today.
>>>
>>> Hello,
>>>
>>> A suggested merge resolution included as an attachment.
>>
>> The resolution is OK to me - we have not spotted it since
>> PCI_ENDPOINT is being turned on in the config file in question only
>> in -next, it is not on by default in current mainline, apologies.
>>
>> Lorenzo
> 
> Adding Kishon to CC, he should probably have a look.
> 
> https://marc.info/?l=linux-kernel&m=151747537928327&w=2
> 
> If Kishon approves the suggested merge resolution,
> perhaps it can be squashed with Cyrille's patch.

The patch looks good to me.

Thanks
Kishon