linux-kernel - [patch 1/5] ARC: Remove GENERIC_PENDING

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Message-ID: <20241210103335.373392568@linutronix.de>
Date: Tue, 10 Dec 2024 11:34:10 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: x86@...nel.org,
 Anup Patel <apatel@...tanamicro.com>,
 Vineet Gupta <vgupta@...nel.org>,
 Brian Cain <bcain@...cinc.com>,
 Wei Liu <wei.liu@...nel.org>,
 Steve Wahl <steve.wahl@....com>,
 Joerg Roedel <joro@...tes.org>,
 Lu Baolu <baolu.lu@...ux.intel.com>,
 Juergen Gross <jgross@...e.com>
Subject: [patch 1/5] ARC: Remove GENERIC_PENDING_IRQ

Nothing uses the actual functionality and the MCIP controller sets the
flags which disables the deferred affinity change. The other interrupt
controller does not support affinity setting at all.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Vineet Gupta <vgupta@...nel.org>
---
 arch/arc/Kconfig       |    1 -
 arch/arc/kernel/mcip.c |    2 --
 kernel/irq/debugfs.c   |    1 +
 3 files changed, 1 insertion(+), 3 deletions(-)

--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -24,7 +24,6 @@ config ARC
 	# for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
 	select GENERIC_IRQ_SHOW
 	select GENERIC_PCI_IOMAP
-	select GENERIC_PENDING_IRQ if SMP
 	select GENERIC_SCHED_CLOCK
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_IOREMAP
--- a/arch/arc/kernel/mcip.c
+++ b/arch/arc/kernel/mcip.c
@@ -357,8 +357,6 @@ static void idu_cascade_isr(struct irq_d
 static int idu_irq_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hwirq)
 {
 	irq_set_chip_and_handler(virq, &idu_irq_chip, handle_level_irq);
-	irq_set_status_flags(virq, IRQ_MOVE_PCNTXT);
-
 	return 0;
 }
 
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -53,6 +53,7 @@ static const struct irq_bit_descr irqchi
 	BIT_MASK_DESCR(IRQCHIP_SUPPORTS_NMI),
 	BIT_MASK_DESCR(IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND),
 	BIT_MASK_DESCR(IRQCHIP_IMMUTABLE),
+	BIT_MASK_DESCR(IRQCHIP_MOVE_DEFERRED),
 };
 
 static void