在 2024/11/28 23:03, Steven Rostedt 写道:

On Thu, 28 Nov 2024 21:15:31 +0800
Tao Chen [off-list ref] wrote:

quoted

Hi, Steve, thank you for your reply, as you say, so what about
pr_warn_once api just to print something ?

A better solution is for there to be a return code or something where the
tracers (perf or ftrace) can record in the trace that the system call is
not supported.

-- Steve

Hi，Steve，thank you for your suggestion. I'll see if it can be implemented.

-- 
Best Regards
Dylane Chen