:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp] fs/btrfs/inode.c:5705:5: warning: ‘location.type’ may be used uninitialized in this function [-Wmaybe-uninitialized] fs/btrfs/inode.c:5634:9: warning: ‘location.objectid’ may be used uninitialized in this function [-Wmaybe-uninitialized]