genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY

[ Upstream commit 151a535171be6ff824a0a3875553ea38570f4c05 ]

kernel/irq/ipi.c otherwise fails to compile if nothing else
selects it.

Fixes: 379b656446a3 ("genirq: Add GENERIC_IRQ_IPI Kconfig symbol")
Reported-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201015101222.GA32747@amd
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index f92d9a687372051f0ddc579679c6d692b3024419..4e11120265c74461bc4760518d118ae2c86a3aed 100644 (file)
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -81,6 +81,7 @@ config IRQ_FASTEOI_HIERARCHY_HANDLERS
 # Generic IRQ IPI support
 config GENERIC_IRQ_IPI
        bool
+       select IRQ_DOMAIN_HIERARCHY
 
 # Generic MSI interrupt support
 config GENERIC_MSI_IRQ