linux-kernel - [PATCH v2 5/9] sysctl: make ngroups

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Date:   Tue, 23 Nov 2021 12:23:43 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     akpm@...ux-foundation.org, keescook@...omium.org,
        yzaikin@...gle.com, nixiaoming@...wei.com, ebiederm@...ssion.com,
        peterz@...radead.org, gregkh@...uxfoundation.org, pjt@...gle.com,
        liu.hailong6@....com.cn, andriy.shevchenko@...ux.intel.com,
        sre@...nel.org, penguin-kernel@...ove.sakura.ne.jp,
        pmladek@...e.com, senozhatsky@...omium.org, wangqing@...o.com,
        bcrl@...ck.org, viro@...iv.linux.org.uk, jack@...e.cz,
        amir73il@...il.com
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Stephen Kitt <steve@....org>,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH v2 5/9] sysctl: make ngroups_max const

From: Stephen Kitt <steve@....org>

ngroups_max is a read-only sysctl entry, reflecting NGROUPS_MAX. Make
it const, in the same way as cap_last_cap.

Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
Signed-off-by: Stephen Kitt <steve@....org>
---
 kernel/sysctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 8d5bcf1f08f3..b22149c46fa8 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -124,7 +124,7 @@ static unsigned long dirty_bytes_min = 2 * PAGE_SIZE;
 static int maxolduid = 65535;
 static int minolduid;
 
-static int ngroups_max = NGROUPS_MAX;
+static const int ngroups_max = NGROUPS_MAX;
 static const int cap_last_cap = CAP_LAST_CAP;
 
 
@@ -2290,7 +2290,7 @@ static struct ctl_table kern_table[] = {
 #endif
 	{
 		.procname	= "ngroups_max",
-		.data		= &ngroups_max,
+		.data		= (void *)&ngroups_max,
 		.maxlen		= sizeof (int),
 		.mode		= 0444,
 		.proc_handler	= proc_dointvec,
-- 
2.33.0