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| author |   Alexander Gordeev <agordeev@redhat.com> | 2013-12-16 09:34:54 +0100 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2013-12-20 09:45:05 -0700 |
| commit | a384c8924a8be3f5cf7dac06c04e9dd4a78b41df (patch) | |
| tree | b86d44ed88cc9e16a5f1c5082778d216c7edc347 /arch/s390 | |
| parent | PCI/MSI: Export MSI mode using attributes, not kobjects (diff) | |
| download | linux-dev-a384c8924a8be3f5cf7dac06c04e9dd4a78b41df.tar.xz linux-dev-a384c8924a8be3f5cf7dac06c04e9dd4a78b41df.zip | |
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: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | 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 bf7c73d71eef..6f3788e3363e 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -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) 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); |