On Mon, 2015-24-08 at 12:42:47 UTC, Michael Ellerman wrote:
> From: "Guilherme G. Piccoli" <gpiccoli@xxxxxxxxxxxxxxxxxx>
>
> Since commit 1851617cd2da ("PCI/MSI: Disable MSI at enumeration even if
> kernel doesn't support MSI"), the setup of dev->msi_cap/msix_cap and the
> disable of MSI/MSI-X interrupts isn't being done at PCI probe time, as
> the logic responsible for this was moved in the aforementioned commit
> from pci_device_add() to pci_setup_device(). The latter function is not
> reachable on PowerPC pseries platform during Open Firmware PCI probing
> time.
>
> This exhibits as drivers not being able to enable MSI, eg:
>
> bnx2x 0000:01:00.0: no msix capability found
>
> This patch calls pci_msi_setup_pci_dev() explicitly to disable MSI/MSI-X
> during PCI probe time on pSeries platform.
>
> Fixes: 1851617cd2da ("PCI/MSI: Disable MSI at enumeration even if kernel doesn't support MSI")
> [mpe: Flesh out change log and clarify comment]
> Signed-off-by: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Applied to powerpc fixes.
https://git.kernel.org/powerpc/c/4d9aac397a5d8f4ee26a4178
cheers
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