[PATCH v2 1/3] perf probe: Use the MAX_EVENT_NAME_LEN macro

From: Leo Yan
Date: Sat Oct 12 2024 - 11:45:00 EST


The MAX_EVENT_NAME_LEN macro has been defined in the kernel. Use the
same definition in the tool for more readable.

Signed-off-by: Leo Yan <leo.yan@xxxxxxx>
---
tools/perf/util/probe-event.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index a17c9b8a7a79..061a0412dec2 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -51,6 +51,9 @@

#define PERFPROBE_GROUP "probe"

+/* Defined in kernel/trace/trace.h */
+#define MAX_EVENT_NAME_LEN 64
+
bool probe_event_dry_run; /* Dry run flag */
struct probe_conf probe_conf = { .magic_num = DEFAULT_PROBE_MAGIC_NUM };

@@ -2841,7 +2844,7 @@ static int probe_trace_event__set_name(struct probe_trace_event *tev,
bool allow_suffix)
{
const char *event, *group;
- char buf[64];
+ char buf[MAX_EVENT_NAME_LEN];
int ret;

/* If probe_event or trace_event already have the name, reuse it */
--
2.25.1