linux-kernel - [PATCH 3/5] mm: page_idle: constify attribute

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Message-Id: <1501157221-3832-1-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Thu, 27 Jul 2017 17:37:01 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     akpm@...ux-foundation.org, minchan@...nel.org, vbabka@...e.cz,
        kirill.shutemov@...ux.intel.com
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/5] mm: page_idle: constify attribute_group structures.

attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 mm/page_idle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_idle.c b/mm/page_idle.c
index 1b0f48c..4bd03a8 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -204,7 +204,7 @@ static ssize_t page_idle_bitmap_write(struct file *file, struct kobject *kobj,
 	NULL,
 };
 
-static struct attribute_group page_idle_attr_group = {
+static const struct attribute_group page_idle_attr_group = {
 	.bin_attrs = page_idle_bin_attrs,
 	.name = "page_idle",
 };
-- 
1.9.1