On Tue, Jul 09, 2019 at 04:53:48PM +0900, Damien Le Moal wrote: > For large values of the number of zones reported, the sector increment > calculated with "blk_queue_zone_sectors(q) * n" can overflow the > unsigned int type used. Fix this with a cast to sector_t type. How about just returning a sector_t from blk_queue_zone_sectors, turning this into an automatic implicit cast for all callers?