linux-kernel - [PATCH] sysctl: fix unused proc_cap

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Message-Id: <20230607120857.3621364-1-arnd@kernel.org>
Date:   Wed,  7 Jun 2023 14:08:54 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Peter Zijlstra <peterz@...radead.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] sysctl: fix unused proc_cap_handler() function warning

From: Arnd Bergmann <arnd@...db.de>

Since usermodehelper_table() is marked static now, we get a
warning about it being unused when SYSCTL is disabled:

kernel/umh.c:497:12: error: 'proc_cap_handler' defined but not used [-Werror=unused-function]

Just move it inside of the same #ifdef.

Fixes: e6944e3b75df7 ("sysctl: move umh sysctl registration to its own file")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 kernel/umh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/umh.c b/kernel/umh.c
index d5dc3cc92d5c6..2f9249c2bf6ce 100644
--- a/kernel/umh.c
+++ b/kernel/umh.c
@@ -494,6 +494,7 @@ int call_usermodehelper(const char *path, char **argv, char **envp, int wait)
 }
 EXPORT_SYMBOL(call_usermodehelper);
 
+#if defined(CONFIG_SYSCTL)
 static int proc_cap_handler(struct ctl_table *table, int write,
 			 void *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -544,7 +545,6 @@ static int proc_cap_handler(struct ctl_table *table, int write,
 	return 0;
 }
 
-#if defined(CONFIG_SYSCTL)
 static struct ctl_table usermodehelper_table[] = {
 	{
 		.procname	= "bset",
-- 
2.39.2