Fri, Oct 28, 2022 at 12:51:40PM CEST, michal.wilczynski@intel.com wrote:

From driver perspective it doesn't make any sense to make any changes to
the internal HQoS tree if the created node doesn't have a parent. So a
node created without any parent doesn't have to be initialized in the
driver. Allow for such scenario by allowing to modify priv in parent_set
callbacks.

Change priv parameter to double pointer, to allow for setting priv during
the parent set phase.

I fail to understand the reason for this patch, but anyway, it looks
very hacky. The priv is something the leaf/node is created with.
Changing it from the callback awfully smells like wrong design. Please
don't do that.