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/20220705224750.172301548@xxxxxxxxxxx Cc: Mathias Nyman <mathias.nyman@xxxxxxxxx> 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/host/xhci-trace.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index a5da02077297..61e93a3540a7 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -28,9 +28,9 @@ DECLARE_EVENT_CLASS(xhci_log_msg, TP_PROTO(struct va_format *vaf), TP_ARGS(vaf), - TP_STRUCT__entry(__dynamic_array(char, msg, XHCI_MSG_MAX)), + TP_STRUCT__entry(__vstring(msg, vaf->fmt, vaf->va)), TP_fast_assign( - vsnprintf(__get_str(msg), XHCI_MSG_MAX, vaf->fmt, *vaf->va); + __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s", __get_str(msg)) ); -- 2.35.1
