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authorIlya Dryomov <idryomov@gmail.com>2019-11-13 12:07:15 +0100
committerIlya Dryomov <idryomov@gmail.com>2019-11-14 19:00:53 +0100
commit633739b2fedb6617d782ca252797b7a8ad754347 (patch)
tree61b7c274cf27a630b78d8b81e35f7b09cea06aed /drivers/block/rbd.c
parent6a81749ebe5f1b52d7eeb8a1031deb8d520f23e6 (diff)
downloadlinux-633739b2fedb6617d782ca252797b7a8ad754347.tar.bz2
rbd: silence bogus uninitialized warning in rbd_object_map_update_finish()
Some versions of gcc (so far 6.3 and 7.4) throw a warning: drivers/block/rbd.c: In function 'rbd_object_map_callback': drivers/block/rbd.c:2124:21: warning: 'current_state' may be used uninitialized in this function [-Wmaybe-uninitialized] (current_state == OBJECT_EXISTS && state == OBJECT_EXISTS_CLEAN)) drivers/block/rbd.c:2092:23: note: 'current_state' was declared here u8 state, new_state, current_state; ^~~~~~~~~~~~~ It's bogus because all current_state accesses are guarded by has_current_state. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Diffstat (limited to 'drivers/block/rbd.c')
-rw-r--r--drivers/block/rbd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 39136675dae5..13527a0b4e44 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2087,7 +2087,7 @@ static int rbd_object_map_update_finish(struct rbd_obj_request *obj_req,
struct rbd_device *rbd_dev = obj_req->img_request->rbd_dev;
struct ceph_osd_data *osd_data;
u64 objno;
- u8 state, new_state, current_state;
+ u8 state, new_state, uninitialized_var(current_state);
bool has_current_state;
void *p;