From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx> Instead of open coding a __dynamic_array() with a fixed length (which defeats the purpose of the dynamic array in the first place). Use the new __vstring() helper that will use a va_list and only write enough of the string into the ring buffer that is needed. Link: https://lkml.kernel.org/r/20220705224750.532345354@xxxxxxxxxxx Cc: Bin Liu <b-liu@xxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: linux-usb@xxxxxxxxxxxxxxx Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx> --- drivers/usb/musb/musb_trace.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h index ec28b5716796..f246b14394c4 100644 --- a/drivers/usb/musb/musb_trace.h +++ b/drivers/usb/musb/musb_trace.h @@ -28,11 +28,11 @@ TRACE_EVENT(musb_log, TP_ARGS(musb, vaf), TP_STRUCT__entry( __string(name, dev_name(musb->controller)) - __dynamic_array(char, msg, MUSB_MSG_MAX) + __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( __assign_str(name, dev_name(musb->controller)); - vsnprintf(__get_str(msg), MUSB_MSG_MAX, vaf->fmt, *vaf->va); + __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s: %s", __get_str(name), __get_str(msg)) ); -- 2.35.1
