Commit f6d3486a authored Nov 11, 2022 by Thomas Gleixner

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 <tglx@linutronix.de>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20221111122014.063153448@linutronix.de

parent 762687ce

include/linux/msi.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -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);
		};

		/**

kernel/irq/msi.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}