[PATCH 8/9] dax: fix empty-body warnings in bus.c

[Christoph Hellwig]

On Sat, Apr 18, 2020 at 11:41:10AM -0700, Randy Dunlap wrote:
>  				rc = -ENOMEM;
>  		} else
> -			/* nothing to remove */;
> +			do_empty(); /* nothing to remove */
>  	} else if (action == ID_REMOVE) {
>  		list_del(&dax_id->list);
>  		kfree(dax_id);
>  	} else
> -		/* dax_id already added */;
> +		do_empty(); /* dax_id already added */

This is just nasty.  Please just always turn this bogus warning off
as the existing code is a perfectly readable idiom while the new code
is just nasty crap for no good reason at all.