Re: [PATCH] tracing/filters: use list_for_each_entry_safe

[Ingo Molnar <mingo@elte.hu>]

* Li Zefan <lizf@cn.fujitsu.com> wrote:

> > -	list_for_each_safe(entry, tmp, &call->fields) {
> > -		field = list_entry(entry, struct ftrace_event_field, link);
> > +	list_for_each_entry_safe(field, next, &call->fields, link) {
> 
> Why we need _safe version ?

indeed the plain list_for_each_entry() variant would be fine, as the 
list is only walked, not modified:

> >  		if (!strcmp(field->name, name))
> >  			return field;
> >  	}

(I've applied this patch already as it was a step forward - so 
please enhance this in the next round of cleanups via a delta patch 
- thanks!)

	Ingo