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Subject[PATCH 07/13] xhci: tracing: Use the new __vstring() helper
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

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.

Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
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
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