linux-kernel - [PATCH] driver base: slience unused warning

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Message-Id: <20230831073654.1713710-1-suhui@nfschina.com>
Date:   Thu, 31 Aug 2023 15:36:55 +0800
From:   Su Hui <suhui@...china.com>
To:     gregkh@...uxfoundation.org, rafael@...nel.org
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Su Hui <suhui@...china.com>
Subject: [PATCH] driver base: slience unused warning

Avoid unused warning with gcc and W=1 option.

drivers/base/module.c:36:6: error:
variable ‘no_warn’ set but not used [-Werror=unused-but-set-variable]

Signed-off-by: Su Hui <suhui@...china.com>
---
 drivers/base/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/module.c b/drivers/base/module.c
index 46ad4d636731..10494336d601 100644
--- a/drivers/base/module.c
+++ b/drivers/base/module.c
@@ -33,7 +33,7 @@ static void module_create_drivers_dir(struct module_kobject *mk)
 void module_add_driver(struct module *mod, struct device_driver *drv)
 {
 	char *driver_name;
-	int no_warn;
+	int __maybe_unused no_warn;
 	struct module_kobject *mk = NULL;
 
 	if (!drv)
-- 
2.30.2