From f6d3486a3d2f3c67d732641834eec872fcc66472 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 11 Nov 2022 14:54:27 +0100 Subject: [PATCH] genirq/msi: Provide msi_domain_ops:: Post_free() To prepare for removing the exposure of __msi_domain_free_irqs() provide a post_free() callback in the MSI domain ops which can be used to solve the problem of the only user of __msi_domain_free_irqs() in arch/powerpc. Signed-off-by: Thomas Gleixner Reviewed-by: Ashok Raj Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20221111122014.063153448@linutronix.de --- include/linux/msi.h | 4 ++++ kernel/irq/msi.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/include/linux/msi.h b/include/linux/msi.h index 9b552ee..7f6aba9 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -315,6 +315,8 @@ struct msi_domain_info; * function. * @domain_free_irqs: Optional function to override the default free * function. + * @msi_post_free: Optional function which is invoked after freeing + * all interrupts. * * @get_hwirq, @msi_init and @msi_free are callbacks used by the underlying * irqdomain. @@ -359,6 +361,8 @@ struct msi_domain_ops { struct device *dev, int nvec); void (*domain_free_irqs)(struct irq_domain *domain, struct device *dev); + void (*msi_post_free)(struct irq_domain *domain, + struct device *dev); }; /** diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 3ccc7f6..c71c37d 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -1026,6 +1026,8 @@ void msi_domain_free_irqs_descs_locked(struct irq_domain *domain, struct device lockdep_assert_held(&dev->msi.data->mutex); ops->domain_free_irqs(domain, dev); + if (ops->msi_post_free) + ops->msi_post_free(domain, dev); msi_domain_free_msi_descs(info, dev); } -- 2.7.4