| From | Thomas Gleixner <> | Subject | [patch 29/37] PCI/MSI: Use __msi_get_virq() in pci_get_vector() | Date | Sat, 27 Nov 2021 02:20:53 +0100 (CET) |
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Use __msi_get_vector() and handle the return values to be compatible.
No functional change intended.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- drivers/pci/msi/msi.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-)
--- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -1023,28 +1023,13 @@ 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; + int irq = __msi_get_virq(&dev->dev, nr); - for_each_pci_msi_entry(entry, dev) { - if (entry->msi_index == nr) - return entry->irq; - } - WARN_ON_ONCE(1); - return -EINVAL; + switch (irq) { + case -ENODEV: return !nr ? dev->irq : -EINVAL; + case -ENOENT: return -EINVAL; } - - 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; - } - - return dev->irq + nr; + return irq; } EXPORT_SYMBOL(pci_irq_vector);
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