This is a note to let you know that I've just added the patch titled genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY to the 5.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: genirq-let-generic_irq_ipi-select-irq_domain_hierarc.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 422eb8bc1382ef82fb9bd7acc415e825583e041e Author: Marc Zyngier <maz@xxxxxxxxxx> Date: Thu Oct 15 21:41:44 2020 +0100 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@xxxxxx> Tested-by: Pavel Machek <pavel@xxxxxx> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Link: https://lore.kernel.org/r/20201015101222.GA32747@amd Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index 10a5aff4eecc8..164a031cfdb66 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -82,6 +82,7 @@ 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