[PATCH 1/1] perf trace: Pass the richer 'struct syscall_arg' pointer to trace__btf_scnprintf()

[Arnaldo Carvalho de Melo]

Since we'll need it later in the current patch series and we can get the
syscall_arg_fmt from syscall_arg->fmt.

Based-on-a-patch-by: Howard Chu <howardchu95@xxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lore.kernel.org/lkml/Zsd8vqCrTh5h69rp@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-trace.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 37ca96e130a5862d..a909880bd25e51d1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1007,9 +1007,11 @@ static size_t btf_enum_scnprintf(const struct btf_type *type, struct btf *btf, c
 	return 0;
 }
 
-static size_t trace__btf_scnprintf(struct trace *trace, struct syscall_arg_fmt *arg_fmt, char *bf,
+static size_t trace__btf_scnprintf(struct trace *trace, struct syscall_arg *arg, char *bf,
 				   size_t size, int val, char *type)
 {
+	struct syscall_arg_fmt *arg_fmt = arg->fmt;
+
 	if (trace->btf == NULL)
 		return 0;
 
@@ -1029,7 +1031,7 @@ static size_t trace__btf_scnprintf(struct trace *trace, struct syscall_arg_fmt *
 }
 
 #else // HAVE_LIBBPF_SUPPORT
-static size_t trace__btf_scnprintf(struct trace *trace __maybe_unused, struct syscall_arg_fmt *arg_fmt __maybe_unused,
+static size_t trace__btf_scnprintf(struct trace *trace __maybe_unused, struct syscall_arg *arg __maybe_unused,
 				   char *bf __maybe_unused, size_t size __maybe_unused, int val __maybe_unused,
 				   char *type __maybe_unused)
 {
@@ -2284,7 +2286,7 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 			if (trace->show_arg_names)
 				printed += scnprintf(bf + printed, size - printed, "%s: ", field->name);
 
-			btf_printed = trace__btf_scnprintf(trace, &sc->arg_fmt[arg.idx], bf + printed,
+			btf_printed = trace__btf_scnprintf(trace, &arg, bf + printed,
 							   size - printed, val, field->type);
 			if (btf_printed) {
 				printed += btf_printed;
@@ -2987,7 +2989,7 @@ static size_t trace__fprintf_tp_fields(struct trace *trace, struct evsel *evsel,
 		if (trace->show_arg_names)
 			printed += scnprintf(bf + printed, size - printed, "%s: ", field->name);
 
-		btf_printed = trace__btf_scnprintf(trace, arg, bf + printed, size - printed, val, field->type);
+		btf_printed = trace__btf_scnprintf(trace, &syscall_arg, bf + printed, size - printed, val, field->type);
 		if (btf_printed) {
 			printed += btf_printed;
 			continue;
-- 
2.46.0