Merge branch irq/irqdomain-locking into irq/irqchip-next

* irq/irqdomain-locking:
  : .
  : irqdomain locking overhaul courtesy of Johan Hovold.
  :
  : From the cover letter:
  :
  : "Parallel probing (e.g. due to asynchronous probing) of devices that
  : share interrupts can currently result in two mappings for the same
  : hardware interrupt to be created.
  :
  : This series fixes this mapping race and reworks the irqdomain locking so
  : that in the end the global irq_domain_mutex is only used for managing
  : the likewise global irq_domain_list, while domain operations (e.g. IRQ
  : allocations) use per-domain (hierarchy) locking."
  : .
  irqdomain: Switch to per-domain locking
  irqchip/mvebu-odmi: Use irq_domain_create_hierarchy()
  irqchip/loongson-pch-msi: Use irq_domain_create_hierarchy()
  irqchip/gic-v3-mbi: Use irq_domain_create_hierarchy()
  irqchip/gic-v3-its: Use irq_domain_create_hierarchy()
  irqchip/gic-v2m: Use irq_domain_create_hierarchy()
  irqchip/alpine-msi: Use irq_domain_add_hierarchy()
  x86/uv: Use irq_domain_create_hierarchy()
  x86/ioapic: Use irq_domain_create_hierarchy()
  irqdomain: Clean up irq_domain_push/pop_irq()
  irqdomain: Drop leftover brackets
  irqdomain: Drop dead domain-name assignment
  irqdomain: Drop revmap mutex
  irqdomain: Fix domain registration race
  irqdomain: Fix mapping-creation race
  irqdomain: Refactor __irq_domain_alloc_irqs()
  irqdomain: Look for existing mapping only once
  irqdomain: Drop bogus fwspec-mapping error handling
  irqdomain: Fix disassociation race
  irqdomain: Fix association race

Signed-off-by: Marc Zyngier <maz@kernel.org>