linux-kernel - [PATCH] kernel: ksysfs: add __ro_after_init to bin

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Date:   Sun, 12 Feb 2017 00:36:09 +0530
From:   Bhumika Goyal <bhumirks@...il.com>
To:     julia.lawall@...6.fr, linux-kernel@...r.kernel.org,
        paulmck@...ux.vnet.ibm.com, ptesarik@...e.com,
        keescook@...omium.org
Cc:     Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH] kernel: ksysfs: add __ro_after_init to bin_attribute structure

The object notes_attr of type bin_attribute is not modified after
getting initailized by ksysfs_init. Apart from initialization in
ksysfs_init it is also passed as an argument to the function
sysfs_create_bin_file but this argument is of type const. Therefore, add
__ro_after_init to its declaration.

Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
---
 kernel/ksysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index ee1bc1b..0999679 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -195,7 +195,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute notes_attr = {
+static struct bin_attribute notes_attr __ro_after_init  = {
 	.attr = {
 		.name = "notes",
 		.mode = S_IRUGO,
-- 
1.9.1