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

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Date:   Thu, 1 Feb 2018 12:16:17 +0100
From:   Niklas Cassel <niklas.cassel@...s.com>
To:     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>,
        kishon@...com
Subject: Re: linux-next: build failure after merge of the pci tree

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.


Regards,
Niklas