linux-kernel - [PATCH 3/4] perf trace beauty: Always show param if show

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Date: Thu, 18 Apr 2024 21:13:03 +0800
From: Changbin Du <changbin.du@...wei.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim
	<namhyung@...nel.org>
CC: Mark Rutland <mark.rutland@....com>, Alexander Shishkin
	<alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, Ian
 Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>,
	<linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Changbin
 Du <changbin.du@...wei.com>
Subject: [PATCH 3/4] perf trace beauty: Always show param if show_zero is set

For some parameters, it is best to also display them when they are 0,
e.g. flags.

Signed-off-by: Changbin Du <changbin.du@...wei.com>
---
 tools/perf/builtin-trace.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 19e81a467d6a..349550b02f79 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2086,9 +2086,9 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 			    !trace->show_zeros &&
 			    !(sc->arg_fmt &&
 			      (sc->arg_fmt[arg.idx].show_zero ||
-			       sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY ||
-			       sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) &&
-			      sc->arg_fmt[arg.idx].parm))
+			        ((sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAY ||
+			          sc->arg_fmt[arg.idx].scnprintf == SCA_STRARRAYS) &&
+			         sc->arg_fmt[arg.idx].parm))))
 				continue;
 
 			printed += scnprintf(bf + printed, size - printed, "%s", printed ? ", " : "");
@@ -2790,8 +2790,8 @@ static size_t trace__fprintf_tp_fields(struct trace *trace, struct evsel *evsel,
 		 */
 		if (val == 0 &&
 		    !trace->show_zeros &&
-		    !((arg->show_zero ||
-		       arg->scnprintf == SCA_STRARRAY ||
+		    !arg->show_zero &&
+		    !((arg->scnprintf == SCA_STRARRAY ||
 		       arg->scnprintf == SCA_STRARRAYS) &&
 		      arg->parm))
 			continue;
-- 
2.34.1