From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH v7 5/6] igb_uio: use kernel functions for
 masking MSI-X
Date: Thu, 12 Oct 2017 14:15:28 -0700
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Cc: dev@dpdk.org, "Kavanagh, Mark B" <mark.b.kavanagh@intel.com>,
 Markus Theil <markus.theil@tu-ilmenau.de>
To: Ferruh Yigit <ferruh.yigit@intel.com>
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Are the symbols exported?

On Oct 12, 2017 13:58, "Ferruh Yigit" <ferruh.yigit@intel.com> wrote:

> On 10/12/2017 11:50 AM, Kavanagh, Mark B wrote:
> > Hi,
> >
> > This commit renders igb_uio unusable on Fedora 20, kernel version
> 3.19.8-100.fc20.x86_64.
> >
> > During the build (make -j 20), a warning is issued for igb_uio regarding
> a missing symbol (pci_msi_unmask):
> >       WARNING: "pci_msi_unmask_irq" [/home/<redacted>/x86_64-
> native-linuxapp-gcc/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.ko]
> undefined!
> >       WARNING: "pci_msi_mask_irq" [/home/<redacted>/x86_64-
> native-linuxapp-gcc/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.ko]
> undefined!
> >
>
> Hi Mark,
>
> I can see vanilla 3.19.8 has pci_msi_unmask_irq and pci_msi_mask_irq.
>
> Also I checked Fedora 3.19.8-100.fc20.x86_64 source code, they are still
> there.
>
> Not sure why getting this error.
>
> > Subsequently, the module is may not be loaded on account of same.
> > (from dmesg):
> >       [673425.712110] igb_uio: Unknown symbol pci_msi_unmask_irq (err 0)
> >       [673425.712124] igb_uio: Unknown symbol pci_msi_mask_irq (err 0)
> >
> > Thanks,
> > Mark
>
>
>