linux-kernel - [PATCH] irqchip: LoongArch: Select GENERIC_IRQ_EFFECTIVE_AFF

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Date:   Mon, 10 Oct 2022 10:28:17 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Thomas Gleixner <tglx@...utronix.de>, Marc Zyngier <maz@...nel.org>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] irqchip: LoongArch: Select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP

An IRQ's effective affinity can only be different from its configured
affinity if there are multiple CPUs. Make it clear that this option is
only meaningful when SMP is enabled.

Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---

This patch is based on tip.git irq/core,
it is conflicted with torvalds/linux.git

 drivers/irqchip/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 4d85a18..39710af 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -574,7 +574,7 @@ config IRQ_LOONGARCH_CPU
 	bool
 	select GENERIC_IRQ_CHIP
 	select IRQ_DOMAIN
-	select GENERIC_IRQ_EFFECTIVE_AFF_MASK
+	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
 	help
 	  Support for the LoongArch CPU Interrupt Controller. For details of
 	  irq chip hierarchy on LoongArch platforms please read the document
-- 
2.1.0