On Wed, Sep 27, 2023 at 09:09:04AM -0400, Steven Rostedt wrote: > From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx> > > In the future, the traceeval_type and traceeval_data may need to include > more information and be expanded. If that happens, it will break backward > compatibility for older applications using the newer library. > > To be able to handle backward compatibility in this situation, have the > traceeval_init() turn into traceeval_init_data_size() which takes the > sizeof struct traceeval_type and struct traceeval_data. Make > traceeval_init() into a macro that calls this function passing in the > sizeof(struct traceeval_type) and sizeof(struct traceeval_data). This way > if the sizes change for either one, the new code will know if the > application is using the new interface or the older one, and can > can keep the older one still functioning properly. > > Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx> Reviewed-by: Ross Zwisler <zwisler@xxxxxxxxxx>
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