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tracing/IB/hfi1: Use the new __vstring() helper

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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/20220705224749.239494531@goodmis.org

Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
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>
This commit is contained in:
Steven Rostedt (Google) 2022-07-05 18:44:55 -04:00
parent 0563231f93
commit 8d7f5df0fb
1 changed files with 2 additions and 6 deletions
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8
drivers/infiniband/hw/hfi1/trace_dbg.h
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@ -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),