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

Are the symbols exported?

On Oct 12, 2017 13:58, "Ferruh Yigit" [off-list ref] wrote:

On 10/12/2017 11:50 AM, Kavanagh, Mark B wrote:

quoted

Hi,

This commit renders igb_uio unusable on Fedora 20, kernel version

3.19.8-100.fc20.x86_64.

quoted

During the build (make -j 20), a warning is issued for igb_uio regarding

a missing symbol (pci_msi_unmask):

quoted

      WARNING: "pci_msi_unmask_irq" [/home/<redacted>/x86_64-

native-linuxapp-gcc/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.ko]
undefined!

quoted

      WARNING: "pci_msi_mask_irq" [/home/<redacted>/x86_64-

native-linuxapp-gcc/build/lib/librte_eal/linuxapp/igb_uio/igb_uio.ko]
undefined!

quoted

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.

quoted

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