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struct apic has two members which store information about the destination
mode: dest_logical and irq_dest_mode.

dest_logical contains a mask which was historically used to set the
destination mode in IPI messages. Over time the usage was reduced and the
logical/physical functions were seperated.

There are only a few places which still use 'dest_logical' but they can
use 'irq_dest_mode' instead.

irq_dest_mode is actually a boolean where 0 means physical destination mode
and 1 means logical destination mode. Of course the name does not reflect
the functionality. This will be cleaned up in a subsequent change.

Remove apic::dest_logical and fixup the remaining users.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-8-dwmw2@infradead.org