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PCI/MSI: Let the MSI core free descriptors

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Let the core do the freeing of descriptors and just keep it around for the
legacy case.

Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20221111122014.409654736@linutronix.de
This commit is contained in:
Ahmed S. Darwish 2022-11-11 14:54:37 +01:00 committed by Thomas Gleixner
parent 38c0c10ae6
commit b2bdda205c
1 changed files with 7 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/pci/msi/irqdomain.c
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@ -24,11 +24,12 @@ void pci_msi_teardown_msi_irqs(struct pci_dev *dev)
struct irq_domain *domain;
domain = dev_get_msi_domain(&dev->dev);
if (domain && irq_domain_is_hierarchy(domain))
if (domain && irq_domain_is_hierarchy(domain)) {
msi_domain_free_irqs_descs_locked(domain, &dev->dev);
else
} else {
pci_msi_legacy_teardown_msi_irqs(dev);
msi_free_msi_descs(&dev->dev);
msi_free_msi_descs(&dev->dev);
}
}
/**
@ -170,6 +171,9 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
pci_msi_domain_update_chip_ops(info);
/* Let the core code free MSI descriptors when freeing interrupts */
info->flags |= MSI_FLAG_FREE_MSI_DESCS;
info->flags |= MSI_FLAG_ACTIVATE_EARLY | MSI_FLAG_DEV_SYSFS;
if (IS_ENABLED(CONFIG_GENERIC_IRQ_RESERVATION_MODE))
info->flags |= MSI_FLAG_MUST_REACTIVATE;