linux-kernel - [PATCH v2 1/2] kernel/sysctl.c: move sysctl_vals and sysctl_long

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Message-ID: <20220908082947.2842179-2-liushixin2@huawei.com>
Date:   Thu, 8 Sep 2022 16:29:46 +0800
From:   Liu Shixin <liushixin2@...wei.com>
To:     Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
        "Liu Shixin" <liushixin2@...wei.com>
Subject: [PATCH v2 1/2] kernel/sysctl.c: move sysctl_vals and sysctl_long_vals to sysctl.c

sysctl_vals and sysctl_long_vals are declared even if sysctl is disabled.
Move its definition to sysctl.c to make sure their integrity in any case.

Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
 fs/proc/proc_sysctl.c | 7 -------
 kernel/sysctl.c       | 9 ++++++++-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 021e83fe831f..42a7cdbe514b 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -28,13 +28,6 @@ static const struct inode_operations proc_sys_inode_operations;
 static const struct file_operations proc_sys_dir_file_operations;
 static const struct inode_operations proc_sys_dir_operations;
 
-/* shared constants to be used in various sysctls */
-const int sysctl_vals[] = { 0, 1, 2, 3, 4, 100, 200, 1000, 3000, INT_MAX, 65535, -1 };
-EXPORT_SYMBOL(sysctl_vals);
-
-const unsigned long sysctl_long_vals[] = { 0, 1, LONG_MAX };
-EXPORT_SYMBOL_GPL(sysctl_long_vals);
-
 /* Support for permanently empty directories */
 
 struct ctl_table sysctl_mount_point[] = {
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f10a610aa834..8ccd8d755c5f 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -82,9 +82,16 @@
 #include <linux/rtmutex.h>
 #endif
 
+/* shared constants to be used in various sysctls */
+const int sysctl_vals[] = { 0, 1, 2, 3, 4, 100, 200, 1000, 3000, INT_MAX, 65535, -1 };
+EXPORT_SYMBOL(sysctl_vals);
+
+const unsigned long sysctl_long_vals[] = { 0, 1, LONG_MAX };
+EXPORT_SYMBOL_GPL(sysctl_long_vals);
+
 #if defined(CONFIG_SYSCTL)
 
-/* Constants used for minimum and  maximum */
+/* Constants used for minimum and maximum */
 
 #ifdef CONFIG_PERF_EVENTS
 static const int six_hundred_forty_kb = 640 * 1024;
-- 
2.25.1