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genirq/msi: Populate the domain name if provided by the irqchip

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In order to ease debug, let's populate the domain name upfront, before any
MSI gets requested. This allows the domain to appear in the
irq_domain_mapping, and the user to easily find the expected data.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/20170512115538.10767-4-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Marc Zyngier 2017-05-12 12:55:37 +01:00 committed by Thomas Gleixner
parent 2370c00dc7
commit a97b852b4d
1 changed files with 8 additions and 2 deletions
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10
kernel/irq/msi.c
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@ -265,13 +265,19 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
struct msi_domain_info *info,
struct irq_domain *parent)
{
struct irq_domain *domain;
if (info->flags & MSI_FLAG_USE_DEF_DOM_OPS)
msi_domain_update_dom_ops(info);
if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
msi_domain_update_chip_ops(info);
return irq_domain_create_hierarchy(parent, IRQ_DOMAIN_FLAG_MSI, 0,
fwnode, &msi_domain_ops, info);
domain = irq_domain_create_hierarchy(parent, IRQ_DOMAIN_FLAG_MSI, 0,
fwnode, &msi_domain_ops, info);
if (domain && info->chip && info->chip->name)
domain->name = info->chip->name;
return domain;
}
int msi_domain_prepare_irqs(struct irq_domain *domain, struct device *dev,