Messages in this thread | | | From | Milian Wolff <> | Subject | Re: [PATCH 1/4] perf ui progress: Make sure we always define step value | Date | Fri, 08 Sep 2017 15:16:37 +0200 |
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On Freitag, 8. September 2017 14:05:07 CEST Jiri Olsa wrote: > Unlikely, but we could have ui_progress__init being called > with total < 16, which would set the next and step variables > to 0. That would force unnecessary ui_progress__ops->update > calls because 'next' would never raise. > > Forcing the next and step values to be always > 0. > > Link: http://lkml.kernel.org/n/tip-0zcvhmsmbhkfgoi7c670rq2x@git.kernel.org > Signed-off-by: Jiri Olsa <jolsa@kernel.org> > --- > tools/perf/ui/progress.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c > index a0f24c7115c5..a9c15804b1f6 100644 > --- a/tools/perf/ui/progress.c > +++ b/tools/perf/ui/progress.c > @@ -25,7 +25,7 @@ void ui_progress__update(struct ui_progress *p, u64 adv) > void ui_progress__init(struct ui_progress *p, u64 total, const char *title) > { > p->curr = 0; > - p->next = p->step = total / 16; > + p->next = p->step = total / 16 ?: 1; > p->total = total; > p->title = title;
This is a GNU extension, does this compile with clang?
Cheers
-- Milian Wolff | milian.wolff@kdab.com | Senior Software Engineer KDAB (Deutschland) GmbH&Co KG, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt Experts
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