17 Apr
2026
17 Apr
'26
8:41 a.m.
Hi Jie,
On Fri, Apr 17, 2026 at 09:01:17AM +0800, Jie Gan wrote:
[...]
... we still need support static trace ID allocation in parallel for the dummy sources and we should not break this logic in future refactor.
Just confirm what is the reason you need to use static trace ID for the dummy sources?
I am wandering if we could use dev->devt as trace ID for dummy devices. Since the device's MAJOR number is non-zero and occupies the upper bits (see MINORBITS), it is naturally separated from the hardware trace ID range. If so, we even don't need to bother ID alloc/release.
Thanks, Leo