| Date | Thu, 16 Dec 2021 21:40:51 -0000 | From | "tip-bot2 for Thomas Gleixner" <> | Subject | [tip: irq/msi] PCI/MSI: Use msi_get_virq() in pci_get_vector() |
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The following commit has been merged into the irq/msi branch of tip:
Commit-ID: 82ff8e6b78fc4587a4255301f0a283506daf11b6 Gitweb: https://git.kernel.org/tip/82ff8e6b78fc4587a4255301f0a283506daf11b6 Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Fri, 10 Dec 2021 23:19:25 +01:00 Committer: Thomas Gleixner <tglx@linutronix.de> CommitterDate: Thu, 16 Dec 2021 22:16:41 +01:00
PCI/MSI: Use msi_get_virq() in pci_get_vector()
Use msi_get_vector() and handle the return value to be compatible.
No functional change intended.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michael Kelley <mikelley@microsoft.com> Tested-by: Nishanth Menon <nm@ti.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20211210221814.841243231@linutronix.de
--- drivers/pci/msi/msi.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-)
diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c index 8fb4dd2..fad3873 100644 --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -1080,28 +1080,13 @@ EXPORT_SYMBOL(pci_free_irq_vectors); */ int pci_irq_vector(struct pci_dev *dev, unsigned int nr) { - if (dev->msix_enabled) { - struct msi_desc *entry; - - for_each_pci_msi_entry(entry, dev) { - if (entry->msi_index == nr) - return entry->irq; - } - WARN_ON_ONCE(1); - return -EINVAL; - } + unsigned int irq; - if (dev->msi_enabled) { - struct msi_desc *entry = first_pci_msi_entry(dev); - - if (WARN_ON_ONCE(nr >= entry->nvec_used)) - return -EINVAL; - } else { - if (WARN_ON_ONCE(nr > 0)) - return -EINVAL; - } + if (!dev->msi_enabled && !dev->msix_enabled) + return !nr ? dev->irq : -EINVAL; - return dev->irq + nr; + irq = msi_get_virq(&dev->dev, nr); + return irq ? irq : -EINVAL; } EXPORT_SYMBOL(pci_irq_vector);
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