linux-kernel - [PATCH v2 6/9] sysctl: delete these unnecessary static variables i_zero and i_one

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Message-ID: <tencent_397E9514756A90C62460BA00F3801FF9F306@qq.com>
Date: Sat,  9 Mar 2024 18:31:23 +0800
From: wenyang.linux@...mail.com
To: "Eric W . Biederman" <ebiederm@...ssion.com>,
	Luis Chamberlain <mcgrof@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	Joel Granados <j.granados@...sung.com>,
	Christian Brauner <brauner@...nel.org>
Cc: Wen Yang <wenyang.linux@...mail.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 6/9] sysctl: delete these unnecessary static variables i_zero and i_one_hundred

From: Wen Yang <wenyang.linux@...mail.com>

Delete unnecessary static variables (i_zero and i_one_hundred)
and encode them directly in the table entry.

Signed-off-by: Wen Yang <wenyang.linux@...mail.com>
Cc: Eric W. Biederman <ebiederm@...ssion.com>
Cc: Luis Chamberlain <mcgrof@...nel.org>
Cc: Kees Cook <keescook@...omium.org>
Cc: Joel Granados <j.granados@...sung.com>
Cc: Christian Brauner <brauner@...nel.org>
Cc: linux-kernel@...r.kernel.org
---
 lib/test_sysctl.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/test_sysctl.c b/lib/test_sysctl.c
index 9321d850931f..cf298f25d686 100644
--- a/lib/test_sysctl.c
+++ b/lib/test_sysctl.c
@@ -26,8 +26,6 @@
 #include <linux/delay.h>
 #include <linux/vmalloc.h>
 
-static int i_zero;
-static int i_one_hundred = 100;
 static int match_int_ok = 1;
 
 
@@ -78,8 +76,9 @@ static struct ctl_table test_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &i_zero,
-		.extra2         = &i_one_hundred,
+		.min		= SYSCTL_NUMERIC_ZERO,
+		.max		= SYSCTL_NUMERIC_ONE_HUNDRED,
+		.extra_flags	= SYSCTL_TABLE_EXTRA_LONG_INIT_MINMAX,
 	},
 	{
 		.procname	= "int_0002",
@@ -108,8 +107,9 @@ static struct ctl_table test_table[] = {
 		.maxlen		= sizeof(test_data.boot_int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
-		.extra1		= SYSCTL_ZERO,
-		.extra2         = SYSCTL_ONE,
+		.min		= SYSCTL_NUMERIC_ZERO,
+		.max		= SYSCTL_NUMERIC_ONE,
+		.extra_flags	= SYSCTL_TABLE_EXTRA_LONG_INIT_MINMAX,
 	},
 	{
 		.procname	= "uint_0001",
-- 
2.25.1