linux-kernel - [PATCH] ARM: Remove redundant arch_cpu_idle

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Date:   Thu,  1 Dec 2022 11:13:06 +0800
From:   Yajun Deng <yajun.deng@...ux.dev>
To:     rmk+kernel@...linux.org.uk, keescook@...omium.org,
        gregkh@...uxfoundation.org, Jason@...c4.com, djwong@...nel.org,
        ebiederm@...ssion.com, thunder.leizhen@...wei.com, ardb@...nel.org,
        wangkefeng.wang@...wei.com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Yajun Deng <yajun.deng@...ux.dev>
Subject: [PATCH] ARM: Remove redundant arch_cpu_idle_prepare()

arch_cpu_idle_prepare() was only called by cpu_startup_entry() and it is
just a wrapper for local_fiq_enable().

The local_fiq_enable() was already called before cpu_startup_entry().

So remove redundant arch_cpu_idle_prepare().

Signed-off-by: Yajun Deng <yajun.deng@...ux.dev>
---
 arch/arm/kernel/process.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index f811733a8fc5..e3f490ab95f4 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -81,11 +81,6 @@ void arch_cpu_idle(void)
 	raw_local_irq_enable();
 }
 
-void arch_cpu_idle_prepare(void)
-{
-	local_fiq_enable();
-}
-
 void arch_cpu_idle_enter(void)
 {
 	ledtrig_cpu(CPU_LED_IDLE_START);
-- 
2.25.1