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Date: Mon, 16 Dec 2013 09:34:54 +0100 From: Alexander Gordeev <agordeev@...hat.com> To: linux-kernel@...r.kernel.org Cc: Alexander Gordeev <agordeev@...hat.com>, Bjorn Helgaas <bhelgaas@...gle.com>, Michael Ellerman <michael@...erman.id.au>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Tejun Heo <tj@...nel.org>, Ben Hutchings <bhutchings@...arflare.com>, David Laight <David.Laight@...LAB.COM>, Mark Lord <kernel@...rt.ca>, "H. Peter Anvin" <hpa@...or.com>, linux-pci@...r.kernel.org Subject: [PATCH v4 1/9] PCI/MSI/s390: 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@...hat.com> Acked-by: Martin Schwidefsky <schwidefsky@...ibm.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 bf7c73d..6f3788e 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); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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