[PATCH v2 03/12] irqchip/irq-bcm7038-l1: Remove .irq_cpu_offline()

From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Russell King <linux@armlinux.org.uk>, Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM
	BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...),
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Marc Zyngier <maz@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Ard Biesheuvel <ardb@kernel.org>, Mike Rapoport <rppt@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Arnd Bergmann <arnd@arndb.de>, Guenter Roeck <linux@roeck-us.net>,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Andrey Konovalov <andreyknvl@gmail.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Valentin Schneider <valentin.schneider@arm.com>,
	Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	linux-arm-kernel@lists.infradead.org (moderated list:ARM PORT),
	linux-sh@vger.kernel.org (open list:SUPERH),
	linux-mips@vger.kernel.org (open list:BROADCOM BMIPS MIPS
	ARCHITECTURE),
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE)
Subject: [PATCH v2 03/12] irqchip/irq-bcm7038-l1: Remove .irq_cpu_offline()
Date: Mon, 27 Sep 2021 19:27:06 -0700	[thread overview]
Message-ID: <20210928022715.369160-4-f.fainelli@gmail.com> (raw)
In-Reply-To: <20210928022715.369160-1-f.fainelli@gmail.com>

With arch/mips/kernel/smp-bmips.c having been migrated away from
irq_cpu_offline() and use irq_migrate_all_off_this_cpu() instead, we no
longer need to implement an .irq_cpu_offline() callback. This is a
necessary change to facilitate the building of this driver as a module.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/irqchip/irq-bcm7038-l1.c | 30 ------------------------------
 1 file changed, 30 deletions(-)

diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index a035c385ca7a..750156217c82 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -221,33 +221,6 @@ static int bcm7038_l1_set_affinity(struct irq_data *d,
 	return 0;
 }
 
-#ifdef CONFIG_SMP
-static void bcm7038_l1_cpu_offline(struct irq_data *d)
-{
-	struct cpumask *mask = irq_data_get_affinity_mask(d);
-	int cpu = smp_processor_id();
-	cpumask_t new_affinity;
-
-	/* This CPU was not on the affinity mask */
-	if (!cpumask_test_cpu(cpu, mask))
-		return;
-
-	if (cpumask_weight(mask) > 1) {
-		/*
-		 * Multiple CPU affinity, remove this CPU from the affinity
-		 * mask
-		 */
-		cpumask_copy(&new_affinity, mask);
-		cpumask_clear_cpu(cpu, &new_affinity);
-	} else {
-		/* Only CPU, put on the lowest online CPU */
-		cpumask_clear(&new_affinity);
-		cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
-	}
-	irq_set_affinity_locked(d, &new_affinity, false);
-}
-#endif
-
 static int __init bcm7038_l1_init_one(struct device_node *dn,
 				      unsigned int idx,
 				      struct bcm7038_l1_chip *intc)
@@ -396,9 +369,6 @@ static struct irq_chip bcm7038_l1_irq_chip = {
 	.irq_mask		= bcm7038_l1_mask,
 	.irq_unmask		= bcm7038_l1_unmask,
 	.irq_set_affinity	= bcm7038_l1_set_affinity,
-#ifdef CONFIG_SMP
-	.irq_cpu_offline	= bcm7038_l1_cpu_offline,
-#endif
 #ifdef CONFIG_PM_SLEEP
 	.irq_set_wake		= bcm7038_l1_set_wake,
 #endif
-- 
2.25.1

