linux-kernel - [PATCH] alpha: remove __init annotation from exported page_is

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Date:   Sat, 29 Jul 2023 16:42:23 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org,
        Richard Henderson <richard.henderson@...aro.org>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>, linux-alpha@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Chen Gong <gong.chen@...ux.intel.com>,
        Tony Luck <tony.luck@...el.com>
Subject: [PATCH] alpha: remove __init annotation from exported page_is_ram()

EXPORT_SYMBOL and __init is a bad combination because the .init.text
section is freed up after the initialization.

Commit c5a130325f13 ("ACPI/APEI: Add parameter check before error
injection") exported page_is_ram(), hence the __init annotation should
be removed.

This fixes the modpost warning in ARCH=alpha builds:

  WARNING: modpost: vmlinux: page_is_ram: EXPORT_SYMBOL used for init symbol. Remove __init or EXPORT_SYMBOL.

Fixes: c5a130325f13 ("ACPI/APEI: Add parameter check before error injection")
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 arch/alpha/kernel/setup.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index b650ff1cb022..3d7473531ab1 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -385,8 +385,7 @@ setup_memory(void *kernel_end)
 #endif /* CONFIG_BLK_DEV_INITRD */
 }
 
-int __init
-page_is_ram(unsigned long pfn)
+int page_is_ram(unsigned long pfn)
 {
 	struct memclust_struct * cluster;
 	struct memdesc_struct * memdesc;
-- 
2.39.2