Hi Alex,

FYI, there are new sparse warnings show up in

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git for-linus
head:   c3e946ce7276faf0b302acd25c7b874edbeba661
commit: c53d589337e9a211413484a604c76072e8474dc0 rbd: define rbd_dev_{create,destroy}() helpers
date:   7 weeks ago

drivers/block/rbd.c:1293:42: sparse: Using plain integer as NULL pointer
drivers/block/rbd.c:1341:26: sparse: incorrect type in assignment (different base types)
drivers/block/rbd.c:1341:26:    expected unsigned long long [unsigned] [usertype] ver
drivers/block/rbd.c:1341:26:    got restricted __le64 [usertype] <noident>
drivers/block/rbd.c:1351:46: sparse: Using plain integer as NULL pointer
drivers/block/rbd.c:1395:26: sparse: incorrect type in assignment (different base types)
drivers/block/rbd.c:1395:26:    expected unsigned long long [unsigned] [usertype] ver
drivers/block/rbd.c:1395:26:    got restricted __le64 [usertype] <noident>
drivers/block/rbd.c:1396:29: sparse: incorrect type in assignment (different base types)
drivers/block/rbd.c:1396:29:    expected unsigned long long [unsigned] [usertype] cookie
drivers/block/rbd.c:1396:29:    got restricted __le64 [usertype] <noident>
drivers/block/rbd.c:1434:29: sparse: incorrect type in assignment (different base types)
drivers/block/rbd.c:1434:29:    expected unsigned long long [unsigned] [usertype] cookie
drivers/block/rbd.c:1434:29:    got restricted __le64 [usertype] <noident>
+ drivers/block/rbd.c:2170:19: sparse: symbol 'rbd_dev_create' was not declared. Should it be static?
drivers/block/rbd.c:2529:17: sparse: incorrect type in assignment (different base types)
drivers/block/rbd.c:2529:17:    expected restricted __le64 [usertype] snap_id
drivers/block/rbd.c:2529:17:    got unsigned long long [unsigned] [long] [long long] <noident>
drivers/block/rbd.c:2530:46: sparse: incorrect type in argument 2 (different base types)
drivers/block/rbd.c:2530:46:    expected unsigned long long [unsigned] [usertype] snap_id
drivers/block/rbd.c:2530:46:    got restricted __le64 [usertype] snap_id
drivers/block/rbd.c:2533:50: sparse: incorrect type in argument 2 (different base types)
drivers/block/rbd.c:2533:50:    expected unsigned long long [unsigned] [usertype] snap_id
drivers/block/rbd.c:2533:50:    got restricted __le64 [usertype] snap_id
drivers/block/rbd.c:1551:32: sparse: context imbalance in 'rbd_rq_fn' - unexpected unlock

Please consider folding the attached diff :-)

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0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation