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Date: Tue, 05 Jul 2022 18:44:59 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: linux-kernel@...r.kernel.org Cc: Ingo Molnar <mingo@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, Peter Chen <peter.chen@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-usb@...r.kernel.org Subject: [PATCH 06/13] usb: chipidea: tracing: Use the new __vstring() helper From: "Steven Rostedt (Google)" <rostedt@...dmis.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: Peter Chen <peter.chen@...nel.org> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: linux-usb@...r.kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org> --- drivers/usb/chipidea/trace.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/chipidea/trace.h b/drivers/usb/chipidea/trace.h index 1601fd86c4c1..ca0e65b48f0a 100644 --- a/drivers/usb/chipidea/trace.h +++ b/drivers/usb/chipidea/trace.h @@ -28,11 +28,11 @@ TRACE_EVENT(ci_log, TP_ARGS(ci, vaf), TP_STRUCT__entry( __string(name, dev_name(ci->dev)) - __dynamic_array(char, msg, CHIPIDEA_MSG_MAX) + __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( __assign_str(name, dev_name(ci->dev)); - vsnprintf(__get_str(msg), CHIPIDEA_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
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