[dpdk-dev] [PATCH v7 5/6] igb_uio: use kernel functions for masking MSI-X

Stephen Hemminger stephen at networkplumber.org
Thu Oct 12 23:15:28 CEST 2017


Are the symbols exported?

On Oct 12, 2017 13:58, "Ferruh Yigit" <ferruh.yigit at 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
>
>
>


More information about the dev mailing list