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MIPS: Octeon: Use arch_setup_msi_irq()

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The core code provides the same loop code except for the MSI-X reject. Move
that to arch_setup_msi_irq() and remove the duplicated code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/r/20211206210224.319201379@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-12-06 23:27:38 +01:00
parent 793c500676
commit bec61847cd
1 changed files with 3 additions and 29 deletions
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32
arch/mips/pci/msi-octeon.c
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@ -68,6 +68,9 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
u64 search_mask;
int index;
if (desc->pci.msi_attrib.is_msix)
return -EINVAL;
/*
* Read the MSI config to figure out how many IRQs this device
* wants. Most devices only want 1, which will give
@ -182,35 +185,6 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
return 0;
}
int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
struct msi_desc *entry;
int ret;
/*
* MSI-X is not supported.
*/
if (type == PCI_CAP_ID_MSIX)
return -EINVAL;
/*
* If an architecture wants to support multiple MSI, it needs to
* override arch_setup_msi_irqs()
*/
if (type == PCI_CAP_ID_MSI && nvec > 1)
return 1;
for_each_pci_msi_entry(entry, dev) {
ret = arch_setup_msi_irq(dev, entry);
if (ret < 0)
return ret;
if (ret > 0)
return -ENOSPC;
}
return 0;
}
/**
* Called when a device no longer needs its MSI interrupts. All
* MSI interrupts for the device are freed.