diff options
| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-06 01:45:02 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-19 18:20:24 +0300 |
| commit | 84149fc768bc82922ef72e56c0eef9512417980c (patch) | |
| tree | a3100223a9f88f8566f8f19f36ad3e1a016b82d2 | |
| parent | 0ba4c9dede106c3e7ad2bb7e23eaa1393adc43a0 (diff) | |
| download | linux-84149fc768bc82922ef72e56c0eef9512417980c.tar.xz | |
usb: musb: tracing: Use the new __vstring() helper
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@goodmis.org
Cc: Bin Liu <b-liu@ti.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | drivers/usb/musb/musb_trace.h | 4 |
1 files 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)) ); |