On Fri, 3 Jul 2020 10:06:10 +0800 Wei Yang <[email protected]> wrote:
> Static defined trace_event->type stops at (__TRACE_LAST_TYPE - 1) and > dynamic trace_event->type starts from (__TRACE_LAST_TYPE + 1). > > To save one trace_event->type index, let's use __TRACE_LAST_TYPE. When I wrote this code, I purposely had a gap there. But I guess it's not really needed. I'll take your patch. Thanks, -- Steve > > Signed-off-by: Wei Yang <[email protected]> > --- > kernel/trace/trace_output.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c > index b704b3ef4264..818f0c9d10c5 100644 > --- a/kernel/trace/trace_output.c > +++ b/kernel/trace/trace_output.c > @@ -20,7 +20,7 @@ DECLARE_RWSEM(trace_event_sem); > > static struct hlist_head event_hash[EVENT_HASHSIZE] __read_mostly; > > -static int next_event_type = __TRACE_LAST_TYPE + 1; > +static int next_event_type = __TRACE_LAST_TYPE; > > enum print_line_t trace_print_bputs_msg_only(struct trace_iterator *iter) > { > @@ -675,7 +675,7 @@ static LIST_HEAD(ftrace_event_list); > static int trace_search_list(struct list_head **list) > { > struct trace_event *e; > - int next = __TRACE_LAST_TYPE + 1; > + int next = __TRACE_LAST_TYPE; > > if (list_empty(&ftrace_event_list)) { > *list = &ftrace_event_list;
