Re: [PATCH] perf trace: remove redundant ')'

From: Du, Changbin
Date: Wed Mar 28 2018 - 03:36:04 EST


Hi Arnaldo,
Just a kind reminder. Hope you didn't forget this.

On Fri, Mar 16, 2018 at 09:50:45AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Fri, Mar 16, 2018 at 03:51:09PM +0800, Du, Changbin escreveu:
> > Hi Arnaldo, How about this simple one? Thanks.
> >
> > On Tue, Mar 13, 2018 at 06:40:01PM +0800, changbin.du@xxxxxxxxx wrote:
> > > From: Changbin Du <changbin.du@xxxxxxxxx>
> > >
> > > There is a redundant ')' at the tail of each event. So remove it.
> > > $ sudo perf trace --no-syscalls -e 'kmem:*' -a
> > > 899.342 kmem:kfree:(vfs_writev+0xb9) call_site=ffffffff9c453979 ptr=(nil))
> > > 899.344 kmem:kfree:(___sys_recvmsg+0x188) call_site=ffffffff9c9b8b88 ptr=(nil))
> > >
> > > Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx>
> > > ---
> > > tools/perf/builtin-trace.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> > > index e7f1b18..7273f5f 100644
> > > --- a/tools/perf/builtin-trace.c
> > > +++ b/tools/perf/builtin-trace.c
> > > @@ -1959,7 +1959,7 @@ static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
> > > trace->output);
> > > }
> > >
> > > - fprintf(trace->output, ")\n");
> > > + fprintf(trace->output, "\n");
>
> It looks simple on the surface, but I couldn't quickly recall why this
> ')' was put there in the first place... So I left for later to do a 'git
> blame' on this file, etc.
>
> - Arnaldo
>
> > > if (callchain_ret > 0)
> > > trace__fprintf_callchain(trace, sample);
> > > --
> > > 2.7.4
> > >
> >
> > --
> > Thanks,
> > Changbin Du

--
Thanks,
Changbin Du