irqdomain: Export irq_domain_update_bus_token

Add export for irq_domain_update_bus_token() so that
we can allow drivers like the qcom-pdc driver to be
loadable as a module.

Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Cc: Andy Gross <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Joerg Roedel <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Jason Cooper <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Maulik Shah <[email protected]>
Cc: Lina Iyer <[email protected]>
Cc: Saravana Kannan <[email protected]>
Cc: Todd Kjos <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]

Author: johnstultz-work

kernel/irq/irqdomain.c

@@ -281,6 +281,7 @@ void irq_domain_update_bus_token(struct irq_domain *domain,
 
 	mutex_unlock(&irq_domain_mutex);
 }
+EXPORT_SYMBOL_GPL(irq_domain_update_bus_token);
 
 /**
  * irq_domain_add_simple() - Register an irq_domain and optionally map a range of irqs