Re: [PATCH v4 bpf-next 2/4] ftrace: allow IPMODIFY and DIRECT ops on the same function

[Steven Rostedt]

On Tue, 19 Jul 2022 14:28:56 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> > +				/* Cannot have two ipmodify on same rec */
> > +				if (is_ipmodify)
> > +					goto rollback;
> > +  
> 
> I might add a
> 
> 				FTRACE_WARN_ON(rec->flags &
> 				FTRACE_FL_DIRECT);

Bah, my email client line wrapped this. It was suppose to be:

 				FTRACE_WARN_ON(rec->flags & FTRACE_FL_DIRECT);

Just so you don't think I wanted that initial formatting ;-)

-- Steve

> 
> Just to be safe.
> 
> That is, if this is true, we are adding a new direct function to a record
> that already has one.