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@kernel.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

On 7/29/23 00:42, Masahiro Yamada wrote:
> 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@kernel.org>

Reviewed-by: Randy Dunlap <rdunlap@infradead.org>

Thanks.

> ---
> 
>  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;

-- 
~Randy