On Thu, Aug 31, 2023 at 03:36:55PM +0800, Su Hui wrote:
> 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@xxxxxxxxxxxx>
> ---
> 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;
But no_warn is being used in this file, it's being set but not read
which is ok. That's a real use, so this change really isn't correct,
sorry.
greg k-h
