linux-kernel - [PATCH] kernel: power: swap: mark a function as _

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Message-Id: <20200531210059.647066-1-christophe.jaillet@wanadoo.fr>
Date:   Sun, 31 May 2020 23:00:59 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     rjw@...ysocki.net, pavel@....cz, len.brown@...el.com
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] kernel: power: swap: mark a function as __init to save some memory

'swsusp_header_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>
---
 kernel/power/swap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index ca0fcb5ced71..01e2858b5fe3 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -1590,7 +1590,7 @@ int swsusp_unmark(void)
 }
 #endif
 
-static int swsusp_header_init(void)
+static int __init swsusp_header_init(void)
 {
 	swsusp_header = (struct swsusp_header*) __get_free_page(GFP_KERNEL);
 	if (!swsusp_header)
-- 
2.25.1