linux-kernel - Re: [PATCH -next] PCI: dwc: fix compile err for pcie-tagra194

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Date:   Fri, 20 Mar 2020 14:00:59 +0800
From:   Qiujun Huang <hqjagain@...il.com>
To:     Vidya Sagar <vidyas@...dia.com>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        anders.roxell@...aro.org, jingoohan1@...il.com,
        gustavo.pimentel@...opsys.com, amurray@...goodpenguin.co.uk,
        Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] PCI: dwc: fix compile err for pcie-tagra194

On Fri, Mar 20, 2020 at 1:15 PM Vidya Sagar <vidyas@...dia.com> wrote:
>
>
>
> On 3/19/2020 11:07 PM, Lorenzo Pieralisi wrote:
> > External email: Use caution opening links or attachments
> >
> >
> > On Thu, Mar 19, 2020 at 08:36:20PM +0800, Qiujun Huang wrote:
> >> make allmodconfig
> >> ERROR: modpost: "dw_pcie_ep_init_notify" [drivers/pci/controller/dwc/pcie-tegra194.ko] undefined!
> >> ERROR: modpost: "dw_pcie_ep_init_complete" [drivers/pci/controller/dwc/pcie-tegra194.ko] undefined!
> >> ERROR: modpost: "dw_pcie_ep_linkup" [drivers/pci/controller/dwc/pcie-tegra194.ko] undefined!
> >> make[2]: *** [__modpost] Error 1
> >> make[1]: *** [modules] Error 2
> >> make: *** [sub-make] Error 2
> >>
> >> need to export the symbols.
> >>
> >> Signed-off-by: Qiujun Huang <hqjagain@...il.com>
> >> ---
> >>   drivers/pci/controller/dwc/pcie-designware-ep.c | 3 +++
> >>   1 file changed, 3 insertions(+)
> >
> > I have squashed this in with the original patch.
> >
> > @Vidya: is this something we missed in the review cycle ? Asking just
> > to make sure it was not me who made a mistake while merging the code.
> My apologies. I wasn't compiling the driver as a module (instead built
> into the kernel image)
> BTW, I see
> ERROR: modpost: "dw_pcie_ep_init"
> [drivers/pci/controller/dwc/pcie-tegra194.ko] undefined!
> also along with the above three. So I think even dw_pcie_ep_init() needs
> to be exported.

OK, I'll send v2 to add dw_pcie_ep_init.

>
> Thanks,
> Vidya Sagar
> >
> > Thanks,
> > Lorenzo
> >
> >> diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
> >> index 4233c43..60d62ef 100644
> >> --- a/drivers/pci/controller/dwc/pcie-designware-ep.c
> >> +++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
> >> @@ -18,6 +18,7 @@ void dw_pcie_ep_linkup(struct dw_pcie_ep *ep)
> >>
> >>        pci_epc_linkup(epc);
> >>   }
> >> +EXPORT_SYMBOL_GPL(dw_pcie_ep_linkup);
> >>
> >>   void dw_pcie_ep_init_notify(struct dw_pcie_ep *ep)
> >>   {
> >> @@ -25,6 +26,7 @@ void dw_pcie_ep_init_notify(struct dw_pcie_ep *ep)
> >>
> >>        pci_epc_init_notify(epc);
> >>   }
> >> +EXPORT_SYMBOL_GPL(dw_pcie_ep_init_notify);
> >>
> >>   static void __dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar,
> >>                                   int flags)
> >> @@ -535,6 +537,7 @@ int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep)
> >>
> >>        return 0;
> >>   }
> >> +EXPORT_SYMBOL_GPL(dw_pcie_ep_init_complete);
> >>
> >>   int dw_pcie_ep_init(struct dw_pcie_ep *ep)
> >>   {
> >> --
> >> 1.8.3.1
> >>