[tip: irq/msi] MIPS: Octeon: Use arch_setup_msi_irq()

tip-bot2 for Thomas Gleixner
2021-12-09T16:07:53Z

The following commit has been merged into the irq/msi branch of tip:

Commit-ID: bec61847cdc7ff22d6d85e6e6436d4b7416c1f9b
Gitweb: https://git.kernel.org/tip/bec61847cdc7ff22d6d85e6e6436d4b7416c1f9b
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Mon, 06 Dec 2021 23:27:38 +01:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Thu, 09 Dec 2021 11:52:21 +01:00

MIPS: Octeon: Use arch_setup_msi_irq()

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

---
arch/mips/pci/msi-octeon.c | 32 +++-----------------------------
1 file changed, 3 insertions(+), 29 deletions(-)

diff --git a/arch/mips/pci/msi-octeon.c b/arch/mips/pci/msi-octeon.c
index 288b58b..c2860eb 100644
--- a/arch/mips/pci/msi-octeon.c
+++ b/arch/mips/pci/msi-octeon.c
@@ -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 @@ msi_irq_allocated:
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.