[PATCH] arm: ptdump: add __init section marker to three functions

[PATCH] arm: ptdump: add __init section marker to three functions

[Jisheng Zhang]

They are not needed after booting, so mark them as __init to move them
to the .init section.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
 arch/arm/mm/dump.c           | 4 ++--
 arch/arm/mm/ptdump_debugfs.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c
index 93ff0097f00b..fb688003d156 100644
--- a/arch/arm/mm/dump.c
+++ b/arch/arm/mm/dump.c
@@ -420,7 +420,7 @@ void ptdump_walk_pgd(struct seq_file *m, struct ptdump_info *info)
 	note_page(&st, 0, 0, 0, NULL);
 }
 
-static void ptdump_initialize(void)
+static void __init ptdump_initialize(void)
 {
 	unsigned i, j;
 
@@ -466,7 +466,7 @@ void ptdump_check_wx(void)
 		pr_info("Checked W+X mappings: passed, no W+X pages found\n");
 }
 
-static int ptdump_init(void)
+static int __init ptdump_init(void)
 {
 	ptdump_initialize();
 	ptdump_debugfs_register(&kernel_ptdump_info, "kernel_page_tables");
diff --git a/arch/arm/mm/ptdump_debugfs.c b/arch/arm/mm/ptdump_debugfs.c
index 598b636615a2..8df9afac8d81 100644
--- a/arch/arm/mm/ptdump_debugfs.c
+++ b/arch/arm/mm/ptdump_debugfs.c
@@ -24,7 +24,7 @@ static const struct file_operations ptdump_fops = {
 	.release	= single_release,
 };
 
-void ptdump_debugfs_register(struct ptdump_info *info, const char *name)
+void __init ptdump_debugfs_register(struct ptdump_info *info, const char *name)
 {
 	debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
 }
-- 
2.31.0

Re: [PATCH] arm: ptdump: add __init section marker to three functions

[Steven Price]

On 30/03/2021 04:19, Jisheng Zhang wrote:
> They are not needed after booting, so mark them as __init to move them
> to the .init section.
> 
> Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>

Reviewed-by: Steven Price <steven.price@arm.com>

> ---
>   arch/arm/mm/dump.c           | 4 ++--
>   arch/arm/mm/ptdump_debugfs.c | 2 +-
>   2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c
> index 93ff0097f00b..fb688003d156 100644
> --- a/arch/arm/mm/dump.c
> +++ b/arch/arm/mm/dump.c
> @@ -420,7 +420,7 @@ void ptdump_walk_pgd(struct seq_file *m, struct ptdump_info *info)
>   	note_page(&st, 0, 0, 0, NULL);
>   }
>   
> -static void ptdump_initialize(void)
> +static void __init ptdump_initialize(void)
>   {
>   	unsigned i, j;
>   
> @@ -466,7 +466,7 @@ void ptdump_check_wx(void)
>   		pr_info("Checked W+X mappings: passed, no W+X pages found\n");
>   }
>   
> -static int ptdump_init(void)
> +static int __init ptdump_init(void)
>   {
>   	ptdump_initialize();
>   	ptdump_debugfs_register(&kernel_ptdump_info, "kernel_page_tables");
> diff --git a/arch/arm/mm/ptdump_debugfs.c b/arch/arm/mm/ptdump_debugfs.c
> index 598b636615a2..8df9afac8d81 100644
> --- a/arch/arm/mm/ptdump_debugfs.c
> +++ b/arch/arm/mm/ptdump_debugfs.c
> @@ -24,7 +24,7 @@ static const struct file_operations ptdump_fops = {
>   	.release	= single_release,
>   };
>   
> -void ptdump_debugfs_register(struct ptdump_info *info, const char *name)
> +void __init ptdump_debugfs_register(struct ptdump_info *info, const char *name)
>   {
>   	debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
>   }
>