linux-kernel - [PATCH] [RESEND] apm-emulation: hide an unused variable

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Message-Id: <20250225145524.1154444-1-arnd@kernel.org>
Date: Tue, 25 Feb 2025 15:55:14 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Kosina <jkosina@...e.com>,
	Jiri Kosina <jikos@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] [RESEND] apm-emulation: hide an unused variable

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

The driver_version variable is only used inside of an #ifdef block, which
leads to a W=1 warning:

drivers/char/apm-emulation.c:144:19: error: 'driver_version' defined but not used [-Werror=unused-const-variable=]

Move this into the function using it.

Fixes: 7726942fb15e ("[APM] Add shared version of APM emulation")
Acked-by: Jiri Kosina <jkosina@...e.com>
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
Found while looking through my patch backlog, still applies
---
 drivers/char/apm-emulation.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index e795390b070f..53ce352f7197 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -141,9 +141,6 @@ static struct apm_queue kapmd_queue;
 
 static DEFINE_MUTEX(state_lock);
 
-static const char driver_version[] = "1.13";	/* no spaces */
-
-
 
 /*
  * Compatibility cruft until the IPAQ people move over to the new
@@ -435,6 +432,8 @@ static struct miscdevice apm_device = {
  */
 static int proc_apm_show(struct seq_file *m, void *v)
 {
+	static const char driver_version[] = "1.13";	/* no spaces */
+
 	struct apm_power_info info;
 	char *units;
 
-- 
2.39.5