Commit a384c892 authored by Alexander Gordeev's avatar Alexander Gordeev Committed by Bjorn Helgaas

s390/PCI: Fix single MSI only check

Multiple MSIs have never been supported on s390 architecture, but the
platform code fails to report single MSI only.
Signed-off-by: default avatarAlexander Gordeev <agordeev@redhat.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 1c51b50c
...@@ -409,6 +409,8 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) ...@@ -409,6 +409,8 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI) if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI)
return -EINVAL; return -EINVAL;
if (type == PCI_CAP_ID_MSI && nvec > 1)
return 1;
msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX); msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX);
msi_vecs = min_t(unsigned int, msi_vecs, CONFIG_PCI_NR_MSI); msi_vecs = min_t(unsigned int, msi_vecs, CONFIG_PCI_NR_MSI);
......
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