[PATCH 0/2] irqchip/gic-v3-its: a raw_spinlock_t + early ->pend_page allocateion

[Sebastian Andrzej Siewior]

The errors popped up in -RT. One is the spinlock_t usage in IRQ-off
region which should be a raw_spinlock_t. I don't see this to be used
during run-time or for long period of time so I don't thing this is an
issue.

The second problem is the ->pend_page allocation on the target_cpu early
during CPU bring up. It would be simpler to allocate the memory once on
the boot CPU instead the hotplug callback since the memory is never
free()ed. I *think* this is avoided because the number of possible CPUs
might be higher than what will actually come up (on x86 the BIOS
sometimes reports more possible_cpus than what is *really* possible, not
sure if ARM64 is there yet). Therefore I moved the allocation to an
earlier callback.

Sebastian