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Date:   Sat, 22 Jan 2022 15:47:21 -0000
From:   "irqchip-bot for Ard Biesheuvel" <tip-bot2@linutronix.de>
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Subject: [irqchip: irq/irqchip-fixes] irqchip/gic-v3-its: Fix build for !SMP
Cc:     Valentin Schneider <valentin.schneider@arm.com>,
        Ard Biesheuvel <ardb@kernel.org>,
        Marc Zyngier <maz@kernel.org>, tglx@linutronix.de
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The following commit has been merged into the irq/irqchip-fixes branch of irqchip:

Commit-ID:     16436f70abeebb29cd99444e27b310755806c1fa
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/16436f70abeebb29cd99444e27b310755806c1fa
Author:        Ard Biesheuvel <ardb@kernel.org>
AuthorDate:    Sat, 22 Jan 2022 16:16:14 +01:00
Committer:     Marc Zyngier <maz@kernel.org>
CommitterDate: Sat, 22 Jan 2022 15:42:49 

irqchip/gic-v3-its: Fix build for !SMP

Commit 835f442fdbce ("irqchip/gic-v3-its: Limit memreserve cpuhp state
lifetime") added a reference to cpus_booted_once_mask, which does not
exist on !SMP builds, breaking the build for such configurations.

Given the intent of the check, short circuit it to always pass.

Cc: Valentin Schneider <valentin.schneider@arm.com>
Fixes: 835f442fdbce ("irqchip/gic-v3-its: Limit memreserve cpuhp state lifetime")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220122151614.133766-1-ardb@kernel.org
---
 drivers/irqchip/irq-gic-v3-its.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index ee83eb3..7b8f1ec 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -5241,7 +5241,8 @@ static int its_cpu_memreserve_lpi(unsigned int cpu)
 
 out:
 	/* Last CPU being brought up gets to issue the cleanup */
-	if (cpumask_equal(&cpus_booted_once_mask, cpu_possible_mask))
+	if (!IS_ENABLED(CONFIG_SMP) ||
+	    cpumask_equal(&cpus_booted_once_mask, cpu_possible_mask))
 		schedule_work(&rdist_memreserve_cpuhp_cleanup_work);
 
 	gic_data_rdist()->flags |= RD_LOCAL_MEMRESERVE_DONE;