linux-stable/include/trace/events/qla.h
Steven Rostedt (Google) 74003fc4ae scsi: qla2xxx: 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/20220705224750.896553364@goodmis.org

Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-07-19 11:20:25 -04:00

46 lines
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C

/* SPDX-License-Identifier: GPL-2.0 */
#if !defined(_TRACE_QLA_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_QLA_H_
#include <linux/tracepoint.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM qla
#define QLA_MSG_MAX 256
#pragma GCC diagnostic push
#ifndef __clang__
#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
#endif
DECLARE_EVENT_CLASS(qla_log_event,
TP_PROTO(const char *buf,
struct va_format *vaf),
TP_ARGS(buf, vaf),
TP_STRUCT__entry(
__string(buf, buf)
__vstring(msg, vaf->fmt, vaf->va)
),
TP_fast_assign(
__assign_str(buf, buf);
__assign_vstr(msg, vaf->fmt, vaf->va);
),
TP_printk("%s %s", __get_str(buf), __get_str(msg))
);
#pragma GCC diagnostic pop
DEFINE_EVENT(qla_log_event, ql_dbg_log,
TP_PROTO(const char *buf, struct va_format *vaf),
TP_ARGS(buf, vaf)
);
#endif /* _TRACE_QLA_H */
#define TRACE_INCLUDE_FILE qla
#include <trace/define_trace.h>