Messages in this thread Patch in this message | | | Date | Tue, 05 Jul 2022 18:44:55 -0400 | From | Steven Rostedt <> | Subject | [PATCH 02/13] tracing/IB/hfi1: Use the new __vstring() helper |
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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: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Leon Romanovsky <leon@kernel.org> Cc: linux-rdma@vger.kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> --- drivers/infiniband/hw/hfi1/trace_dbg.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/trace_dbg.h b/drivers/infiniband/hw/hfi1/trace_dbg.h index 707f1053f0b7..582b6f68df3d 100644 --- a/drivers/infiniband/hw/hfi1/trace_dbg.h +++ b/drivers/infiniband/hw/hfi1/trace_dbg.h @@ -26,14 +26,10 @@ DECLARE_EVENT_CLASS(hfi1_trace_template, TP_PROTO(const char *function, struct va_format *vaf), TP_ARGS(function, vaf), TP_STRUCT__entry(__string(function, function) - __dynamic_array(char, msg, MAX_MSG_LEN) + __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign(__assign_str(function, function); - WARN_ON_ONCE(vsnprintf - (__get_dynamic_array(msg), - MAX_MSG_LEN, vaf->fmt, - *vaf->va) >= - MAX_MSG_LEN); + __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("(%s) %s", __get_str(function), -- 2.35.1
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