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From: Bibo Mao <maobibo@loongson.cn>
To: Huacai Chen <chenhuacai@kernel.org>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Sergey Shtylyov <s.shtylyov@omp.ru>,
	lvjianmin@loongson.cn
Subject: [PATCH v3 2/3] irqchip/loongson-eiointc: Refine irq affinity setting during resume
Date: Thu, 18 Jan 2024 20:15:41 +0800
Message-Id: <20240118121542.748351-3-maobibo@loongson.cn>
In-Reply-To: <20240118121542.748351-1-maobibo@loongson.cn>
References: <20240118121542.748351-1-maobibo@loongson.cn>
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During suspend and resume, CPUs except CPU0 are hot-unpluged and IRQs
are migrated to CPU0. So it is not necessary to restore irq affinity for
eiointc irq controller when system resumes. This patch removes the piece
of code about irq affinity restoring in function eiointc_resume.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
---
 drivers/irqchip/irq-loongson-eiointc.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c
index 6143adb1b73b..86f4faad0695 100644
--- a/drivers/irqchip/irq-loongson-eiointc.c
+++ b/drivers/irqchip/irq-loongson-eiointc.c
@@ -315,23 +315,7 @@ static int eiointc_suspend(void)
 
 static void eiointc_resume(void)
 {
-	int i, j;
-	struct irq_desc *desc;
-	struct irq_data *irq_data;
-
 	eiointc_router_init(0);
-
-	for (i = 0; i < nr_pics; i++) {
-		for (j = 0; j < eiointc_priv[0]->vec_count; j++) {
-			desc = irq_resolve_mapping(eiointc_priv[i]->eiointc_domain, j);
-			if (desc && desc->handle_irq && desc->handle_irq != handle_bad_irq) {
-				raw_spin_lock(&desc->lock);
-				irq_data = irq_domain_get_irq_data(eiointc_priv[i]->eiointc_domain, irq_desc_get_irq(desc));
-				eiointc_set_irq_affinity(irq_data, irq_data->common->affinity, 0);
-				raw_spin_unlock(&desc->lock);
-			}
-		}
-	}
 }
 
 static struct syscore_ops eiointc_syscore_ops = {
-- 
2.39.3