Commit 0e6c027c authored by Samuel Holland's avatar Samuel Holland Committed by Marc Zyngier
Browse files

genirq: GENERIC_IRQ_EFFECTIVE_AFF_MASK depends on 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. Most of the relevant code in
irqdesc.c is already hidden behind CONFIG_SMP anyway.

Signed-off-by: default avatarSamuel Holland <samuel@sholland.org>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220701200056.46555-4-samuel@sholland.org
parent 0f5209fe

arch/arm/mach-hisi/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ config ARCH_HIP04 
	select HAVE_ARM_ARCH_TIMER

	select MCPM if SMP

	select MCPM_QUAD_CLUSTER if SMP

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP

	help

	  Support for Hisilicon HiP04 SoC family

drivers/irqchip/Kconfig

+7 −7
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ config IRQCHIP 
config ARM_GIC

	bool

	select IRQ_DOMAIN_HIERARCHY

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config ARM_GIC_PM

	bool
@@ -34,7 +34,7 @@ config ARM_GIC_V3 
	bool

	select IRQ_DOMAIN_HIERARCHY

	select PARTITION_PERCPU

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config ARM_GIC_V3_ITS

	bool
@@ -76,7 +76,7 @@ config ARMADA_370_XP_IRQ 
	bool

	select GENERIC_IRQ_CHIP

	select PCI_MSI if PCI

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config ALPINE_MSI

	bool
@@ -112,7 +112,7 @@ config BCM6345_L1_IRQ 
	bool

	select GENERIC_IRQ_CHIP

	select IRQ_DOMAIN

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config BCM7038_L1_IRQ

	tristate "Broadcom STB 7038-style L1/L2 interrupt controller driver"
@@ -120,7 +120,7 @@ config BCM7038_L1_IRQ 
	default ARCH_BRCMSTB || BMIPS_GENERIC

	select GENERIC_IRQ_CHIP

	select IRQ_DOMAIN

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config BCM7120_L2_IRQ

	tristate "Broadcom STB 7120-style L2 interrupt controller driver"
@@ -179,7 +179,7 @@ config IRQ_MIPS_CPU 
	select GENERIC_IRQ_CHIP

	select GENERIC_IRQ_IPI if SMP && SYS_SUPPORTS_MULTITHREADING

	select IRQ_DOMAIN

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config CLPS711X_IRQCHIP

	bool
@@ -294,7 +294,7 @@ config VERSATILE_FPGA_IRQ_NR 
config XTENSA_MX

	bool

	select IRQ_DOMAIN

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK

	select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP



config XILINX_INTC

	bool "Xilinx Interrupt Controller IP"

kernel/irq/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ config GENERIC_IRQ_SHOW_LEVEL 


# Supports effective affinity mask

config GENERIC_IRQ_EFFECTIVE_AFF_MASK

       depends on SMP

       bool



# Support for delayed migration from interrupt context