From 82ff8e6b78fc4587a4255301f0a283506daf11b6 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 10 Dec 2021 23:19:25 +0100 Subject: [PATCH] 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 Tested-by: Michael Kelley Tested-by: Nishanth Menon Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe 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 8fb4dd2a18b9..fad387363033 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); -- 2.11.0