| Date | Fri, 4 Oct 2013 09:39:56 +0200 | From | Martin Schwidefsky <> | Subject | Re: [PATCH RFC 03/77] PCI/MSI/s390: Fix single MSI only check |
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On Wed, 2 Oct 2013 12:48:19 +0200 Alexander Gordeev <agordeev@redhat.com> wrote:
> Multiple MSIs have never been supported on s390 architecture, > but the platform code fails to report single MSI only. > > Signed-off-by: Alexander Gordeev <agordeev@redhat.com> > --- > arch/s390/pci/pci.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c > index f17a834..c79c6e4 100644 > --- a/arch/s390/pci/pci.c > +++ b/arch/s390/pci/pci.c > @@ -427,6 +427,8 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) > pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec); > if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI) > return -EINVAL; > + if (type == PCI_CAP_ID_MSI && nvec > 1) > + return 1; > msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX); > msi_vecs = min_t(unsigned int, msi_vecs, CONFIG_PCI_NR_MSI); >
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-- blue skies, Martin.
"Reality continues to ruin my life." - Calvin.
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