Re: [PATCH] tracing/probe: reverse arguments to list_add

From: Steven Rostedt
Date: Thu May 07 2020 - 16:52:44 EST


On Thu, 7 May 2020 16:50:53 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Thu, 7 May 2020 21:30:08 +0200
> Julia Lawall <Julia.Lawall@xxxxxxxx> wrote:
>
> > Elsewhere in the file, the function trace_kprobe_has_same_kprobe uses
> > a trace_probe_event.probes object as the second argument of
> > list_for_each_entry, ie as a list head, while the list_for_each_entry
> > iterates over the list fields of the trace_probe structures, making
> > them the list elements. So, exchange the arguments on the list_add
> > call to put the list head in the second argument.
> >
> > Since both list_head structures were just initialized, this problem
> > did not cause any loss of information.
> >
> > Fixes: 60d53e2c3b75 ("tracing/probe: Split trace_event related data from trace_probe")
> > Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxxx>
>

Julia,

As this doesn't cause any harm (as you state, both lists have just been
initialized), it doesn't need to go into this -rc release. Would you agree?

-- Steve