s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK

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irq_exit() is always called on async stack. Therefore select
HAVE_IRQ_EXIT_ON_IRQ_STACK and get a tiny optimization in
invoke_softirq().

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Heiko Carstens 2020-12-10 22:30:09 +01:00

parent dd6cfe5532

commit 9ceed9988a

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arch/s390/Kconfig

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