From a80c0aceeaffdb3afe9536fe747480e85841da7f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 25 Nov 2022 00:25:52 +0100 Subject: [PATCH] genirq/msi: Split msi_create_irq_domain() Split the functionality of msi_create_irq_domain() so it can be reused for creating per device irq domains. No functional change. Signed-off-by: Thomas Gleixner Reviewed-by: Kevin Tian Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20221124232325.559086358@linutronix.de --- kernel/irq/msi.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 0a3890598b75..0f7fe562b307 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -758,17 +758,10 @@ static void msi_domain_update_chip_ops(struct msi_domain_info *info) chip->irq_set_affinity = msi_domain_set_affinity; } -/** - * msi_create_irq_domain - Create an MSI interrupt domain - * @fwnode: Optional fwnode of the interrupt controller - * @info: MSI domain info - * @parent: Parent irq domain - * - * Return: pointer to the created &struct irq_domain or %NULL on failure - */ -struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, - struct msi_domain_info *info, - struct irq_domain *parent) +static struct irq_domain *__msi_create_irq_domain(struct fwnode_handle *fwnode, + struct msi_domain_info *info, + unsigned int flags, + struct irq_domain *parent) { struct irq_domain *domain; @@ -787,7 +780,7 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) msi_domain_update_chip_ops(info); - domain = irq_domain_create_hierarchy(parent, IRQ_DOMAIN_FLAG_MSI, 0, + domain = irq_domain_create_hierarchy(parent, flags | IRQ_DOMAIN_FLAG_MSI, 0, fwnode, &msi_domain_ops, info); if (domain) { @@ -799,6 +792,21 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, return domain; } +/** + * msi_create_irq_domain - Create an MSI interrupt domain + * @fwnode: Optional fwnode of the interrupt controller + * @info: MSI domain info + * @parent: Parent irq domain + * + * Return: pointer to the created &struct irq_domain or %NULL on failure + */ +struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode, + struct msi_domain_info *info, + struct irq_domain *parent) +{ + return __msi_create_irq_domain(fwnode, info, 0, parent); +} + /** * msi_parent_init_dev_msi_info - Delegate initialization of device MSI info down * in the domain hierarchy -- 2.34.1