profiling profiling_timebase using NULL as global_work_size in clEnqueueNDRangeKernel

[rjodinchr]

profiling profiling_timebase is using NULL as global_work_size in clEnqueueNDRange Kernel:

OpenCL-CTS/test_conformance/profiling/profiling_timebase.cpp

Line 54 in 5b35180

err = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, NULL, NULL, 1, &uEvent,

I don't think this is allowed reading the specification.

[rjodinchr]

NULL is allowed but the specification, but is under the work_dim section:

work_dim is the number of dimensions used to specify the global work-items and work-items in
the work-group. work_dim must be greater than zero and less than or equal to CL_DEVICE_MAX_
WORK_ITEM_DIMENSIONS. If global_work_size is NULL, or the value in any passed dimension is 0 then
the kernel command will trivially succeed after its event dependencies are satisfied and
subsequently update its completion event. The behavior in this situation is similar to that of an
enqueued marker, except that unlike a marker, an enqueued kernel with no events passed to
event_wait_list may run at any time.