Re: [PATCH V2 -tip 3/4] Tracing/ftrace: Adapt mmiotrace to the newtype of print_line

[Ingo Molnar]

* Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote:

> Subject: [PATCH -tip] Tracing/ftrace: correct return value of trace_empty
> 
> Correct the value's type of trace_empty function
> 
> Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> ---
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index 6a1c76b..da3789d 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -1686,7 +1686,7 @@ static int trace_empty(struct trace_iterator *iter)
>  		if (!ring_buffer_iter_empty(iter->buffer_iter[cpu]))
>  			return 0;
>  	}
> -	return TRACE_TYPE_HANDLED;
> +	return 1;

applied the commit below to tip/tracing/ring-buffer, thanks Frederic! 
(had to do manual merging due to flux in that function due to the 
locking changes - please double-check that i got it right.)

btw., we still have the mmiotrace type casting buglet unfixed:

> > >   struct trace_entry *entry = iter->ent;
> > > - struct mmiotrace_map *m = &entry->field.mmiomap;
> > > + struct mmiotrace_map *m = (struct mmiotrace_map *)entry;

	Ingo

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