Re: [RFC] ftrace: Add support to keep some functions out of ftrace

[Peter Zijlstra]

On Mon, Aug 15, 2022 at 08:17:42AM -0700, Alexei Starovoitov wrote:
> It's hiding a fake function from ftrace, since it's not a function
> and ftrace infra shouldn't show it tracing logs.
> In other words it's a _notrace_ function with nop5.

Then make it a notrace function with a nop5 in it. That isn't hard.

The whole problem is that it isn't a notrace function and you're abusing
a __fentry__ site.