linux-kernel - [PATCH] ARM: smp_twd: mark a function as _

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Message-Id: <20200531095151.597393-1-christophe.jaillet@wanadoo.fr>
Date:   Sun, 31 May 2020 11:51:51 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     linux@...linux.org.uk, tglx@...utronix.de, allison@...utok.net,
        kstewart@...uxfoundation.org, info@...ux.net,
        gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] ARM: smp_twd: mark a function as __init to save some memory

'twd_clk_init()' is only called via 'core_initcall'.
It can be marked as __init to save a few bytes of memory.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
For the records, this function has been introduced in commit 4fd7f9b12810
("ARM: 7212/1: smp_twd: reconfigure clockevents after cpufreq change")
---
 arch/arm/kernel/smp_twd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index 9a14f721a2b0..e0a0b0d820bc 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -129,7 +129,7 @@ static struct notifier_block twd_clk_nb = {
 	.notifier_call = twd_rate_change,
 };
 
-static int twd_clk_init(void)
+static int __init twd_clk_init(void)
 {
 	if (twd_evt && raw_cpu_ptr(twd_evt) && !IS_ERR(twd_clk))
 		return clk_notifier_register(twd_clk, &twd_clk_nb);
-- 
2.25.1