[for-next][PATCH 6/6] tracing/osnoise: Add __printf attribute to osnoise_print()
From: Steven Rostedt
Date: Tue Oct 20 2026 - 08:23:09 EST
Building kernel/trace/trace_osnoise.o with W=1 triggers the following
compiler warning:
kernel/trace/trace_osnoise.c:96:17: warning: function 'osnoise_print'
might be a candidate for 'gnu_printf' format attribute
[-Wsuggest-attribute=format]
osnoise_print() forwards its format string and va_list arguments to
trace_array_vprintk(), which is annotated with __printf(3, 0).
Add the __printf(1, 2) attribute to osnoise_print() to silence the W=1
warning and enable compile-time format string checking for its callers.
Link: https://patch.msgid.link/20261019205344.190022-1-adriangarciacasado42@xxxxxxxxx
Signed-off-by: Adrián García Casado <adriangarciacasado42@xxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
kernel/trace/trace_osnoise.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index 0e1265acd1cc..995da9e0b548 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -83,6 +83,7 @@ struct osnoise_instance {
static struct list_head osnoise_instances;
+__printf(1, 2)
static void osnoise_print(const char *fmt, ...)
{
struct osnoise_instance *inst;
--
2.53.0