linux-kernel - [PATCH v2 5/6] genirq: Drop IRQ_HIDDEN from IRQF_MODIFY

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Date:   Tue, 24 Nov 2020 14:14:48 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     LAK <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Cc:     Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Valentin Schneider <Valentin.Schneider@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@....linux.org.uk>,
        Android Kernel Team <kernel-team@...roid.com>
Subject: [PATCH v2 5/6] genirq: Drop IRQ_HIDDEN from IRQF_MODIFY_MASK

IRQ_HIDDEN is hardly a flag generic code should use, so let's
drop it from IRQF_MODIFY_MASK. In turn, update both arm and arm64
to use __irq_modify_status() when setting this flag.

Signed-off-by: Marc Zyngier <maz@...nel.org>
---
 arch/arm/kernel/smp.c   | 2 +-
 arch/arm64/kernel/smp.c | 2 +-
 include/linux/irq.h     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 0e09c8320caf..dc746f808400 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -737,7 +737,7 @@ void __init set_smp_ipi_range(int ipi_base, int n)
 		WARN_ON(err);
 
 		ipi_desc[i] = irq_to_desc(ipi_base + i);
-		irq_set_status_flags(ipi_base + i, IRQ_HIDDEN);
+		__irq_modify_status(ipi_base + i, 0, IRQ_HIDDEN, ~0);
 
 		/* The recheduling IPI is special... */
 		if (i == IPI_RESCHEDULE)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index bad51f7f7ffe..684f41a3ba58 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -994,7 +994,7 @@ void __init set_smp_ipi_range(int ipi_base, int n)
 		WARN_ON(err);
 
 		ipi_desc[i] = irq_to_desc(ipi_base + i);
-		irq_set_status_flags(ipi_base + i, IRQ_HIDDEN);
+		__irq_modify_status(ipi_base + i, 0, IRQ_HIDDEN, ~0);
 
 		/* The recheduling IPI is special... */
 		if (i == IPI_RESCHEDULE)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 605ba5949255..0e71227fd3ec 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -107,7 +107,7 @@ enum {
 	(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
 	 IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \
 	 IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID | \
-	 IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY | IRQ_HIDDEN)
+	 IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY)
 
 #define IRQ_NO_BALANCING_MASK	(IRQ_PER_CPU | IRQ_NO_BALANCING)
 
-- 
2.28.0