[patch V2 04/23] genirq/msi: Remove unused domain callbacks

[Thomas Gleixner <tglx@xxxxxxxxxxxxx>]

No users and there is no need to grow them.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Tested-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211126223824.322987915@xxxxxxxxxxxxx
---
 include/linux/msi.h |   11 ++++-------
 kernel/irq/msi.c    |    5 -----
 2 files changed, 4 insertions(+), 12 deletions(-)

--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -304,7 +304,6 @@ struct msi_domain_info;
  * @msi_free:          Domain specific function to free a MSI interrupts
  * @msi_check:         Callback for verification of the domain/info/dev data
  * @msi_prepare:       Prepare the allocation of the interrupts in the domain
- * @msi_finish:                Optional callback to finalize the allocation
  * @set_desc:          Set the msi descriptor for an interrupt
  * @handle_error:      Optional error handler if the allocation fails
  * @domain_alloc_irqs: Optional function to override the default allocation
@@ -312,12 +311,11 @@ struct msi_domain_info;
  * @domain_free_irqs:  Optional function to override the default free
  *                     function.
  *
- * @get_hwirq, @msi_init and @msi_free are callbacks used by
- * msi_create_irq_domain() and related interfaces
+ * @get_hwirq, @msi_init and @msi_free are callbacks used by the underlying
+ * irqdomain.
  *
- * @msi_check, @msi_prepare, @msi_finish, @set_desc and @handle_error
- * are callbacks used by msi_domain_alloc_irqs() and related
- * interfaces which are based on msi_desc.
+ * @msi_check, @msi_prepare, @handle_error and @set_desc are callbacks used by
+ * msi_domain_alloc/free_irqs().
  *
  * @domain_alloc_irqs, @domain_free_irqs can be used to override the
  * default allocation/free functions (__msi_domain_alloc/free_irqs). This
@@ -351,7 +349,6 @@ struct msi_domain_ops {
        int             (*msi_prepare)(struct irq_domain *domain,
                                       struct device *dev, int nvec,
                                       msi_alloc_info_t *arg);
-       void            (*msi_finish)(msi_alloc_info_t *arg, int retval);
        void            (*set_desc)(msi_alloc_info_t *arg,
                                    struct msi_desc *desc);
        int             (*handle_error)(struct irq_domain *domain,
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -562,8 +562,6 @@ int __msi_domain_alloc_irqs(struct irq_d
                        ret = -ENOSPC;
                        if (ops->handle_error)
                                ret = ops->handle_error(domain, desc, ret);
-                       if (ops->msi_finish)
-                               ops->msi_finish(&arg, ret);
                        return ret;
                }
 
@@ -573,9 +571,6 @@ int __msi_domain_alloc_irqs(struct irq_d
                }
        }
 
-       if (ops->msi_finish)
-               ops->msi_finish(&arg, 0);
-
        can_reserve = msi_check_reservation_mode(domain, info, dev);
 
        /*