linux-kernel - [PATCH] arm64/smp: Drop unsued local variable 'irq'

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Message-Id: <1609758117-3194-1-git-send-email-anshuman.khandual@arm.com>
Date:   Mon,  4 Jan 2021 16:31:57 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Anshuman Khandual <anshuman.khandual@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64/smp: Drop unsued local variable 'irq'

Previous commit 5089bc51f81f05ad ("arm64/smp: Use irq_desc_kstat_cpu() in
arch_show_interrupts()") started using irq_desc_kstat_cpu() that does not
require local variable 'irq' anymore. Hence just drop it. Saves the cost
for irq_desc_get_irq() as well.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
---
This applies on v5.11-rc2

 arch/arm64/kernel/smp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 6bc3a3698c3d..376343d6f13a 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -807,7 +807,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	unsigned int cpu, i;
 
 	for (i = 0; i < NR_IPI; i++) {
-		unsigned int irq = irq_desc_get_irq(ipi_desc[i]);
 		seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i,
 			   prec >= 4 ? " " : "");
 		for_each_online_cpu(cpu)
-- 
2.20.1