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Commit a3839bc6 authored by Dan Carpenter's avatar Dan Carpenter Committed by Mike Snitzer
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dm zoned: Silence a static checker warning 



My static checker complains about this line from dmz_get_zoned_device()

	aligned_capacity = dev->capacity & ~(blk_queue_zone_sectors(q) - 1);

The problem is that "aligned_capacity" and "dev->capacity" are sector_t
type (which is a u64 under most configs) but blk_queue_zone_sectors(q)
returns a u32 so the higher 32 bits in aligned_capacity are cleared to
zero.  This patch adds a cast to address the issue.

Fixes: 114e0259 ("dm zoned: ignore last smaller runt zone")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: default avatarDamien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent c13b5487

drivers/md/dm-zoned-target.c

+2 −1
Original line number Diff line number Diff line
@@ -643,7 +643,8 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path) 


	q = bdev_get_queue(dev->bdev);

	dev->capacity = i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT;

	aligned_capacity = dev->capacity & ~(blk_queue_zone_sectors(q) - 1);

	aligned_capacity = dev->capacity &

				~((sector_t)blk_queue_zone_sectors(q) - 1);

	if (ti->begin ||

	    ((ti->len != dev->capacity) && (ti->len != aligned_capacity))) {

		ti->error = "Partial mapping not supported";