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From:   Florian Fainelli <f.fainelli@gmail.com>
To:     linux-kernel@vger.kernel.org
Cc:     Florian Fainelli <f.fainelli@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ray Jui <rjui@broadcom.com>,
        Scott Branden <sbranden@broadcom.com>,
        bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM
        BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...),
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Marc Zyngier <maz@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Frank Rowand <frowand.list@gmail.com>,
        linux-arm-kernel@lists.infradead.org (moderated list:ARM
        SUB-ARCHITECTURES), linux-mips@vger.kernel.org (open list:MIPS),
        devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE)
Subject: [PATCH v3 01/14] MIPS: BMIPS: Remove use of irq_cpu_offline
Date:   Tue, 28 Sep 2021 11:21:26 -0700
Message-Id: <20210928182139.652896-2-f.fainelli@gmail.com>
In-Reply-To: <20210928182139.652896-1-f.fainelli@gmail.com>
References: <20210928182139.652896-1-f.fainelli@gmail.com>
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irq_cpu_offline() is only used by MIPS and we should instead use
irq_migrate_all_off_this_cpu(). This will be helpful in order to remove
drivers/irqchip/irq-bcm7038-l1.c irq_cpu_offline callback which would
have got in the way of making this driver modular.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 arch/mips/Kconfig            | 1 +
 arch/mips/kernel/smp-bmips.c | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 771ca53af06d..2c03b27cec02 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1782,6 +1782,7 @@ config CPU_BMIPS
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_CPUFREQ
 	select MIPS_EXTERNAL_TIMER
+	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
 	help
 	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
 
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index b6ef5f7312cf..f5d7bfa3472a 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -26,6 +26,7 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/kexec.h>
+#include <linux/irq.h>
 
 #include <asm/time.h>
 #include <asm/processor.h>
@@ -373,7 +374,7 @@ static int bmips_cpu_disable(void)
 
 	set_cpu_online(cpu, false);
 	calculate_cpu_foreign_map();
-	irq_cpu_offline();
+	irq_migrate_all_off_this_cpu();
 	clear_c0_status(IE_IRQ5);
 
 	local_flush_tlb_all();
-- 
2.25.1