diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-04-10 11:12:31 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2019-04-18 23:16:01 +0300 |
| commit | a3839bc6351d79cf85790f302238dfc84382429f (patch) | |
| tree | 65cf39b1254f03a78ed748209a939ab87d654f85 /drivers | |
| parent | c13b5487d9dec7189390c76c11358584e327870a (diff) | |
| download | linux-a3839bc6351d79cf85790f302238dfc84382429f.tar.xz | |
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: 114e025968b5 ("dm zoned: ignore last smaller runt zone")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-zoned-target.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index 8865c1709e16..51d029bbb740 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -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"; |