mirror of
https://github.com/torvalds/linux
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ded4a2f1ae
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/20220705224751.271015450@goodmis.org Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Portions of this file
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* Copyright (C) 2019 Intel Corporation
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*/
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#ifdef CONFIG_MAC80211_MESSAGE_TRACING
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#if !defined(__MAC80211_MSG_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
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#define __MAC80211_MSG_DRIVER_TRACE
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#include <linux/tracepoint.h>
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#include <net/mac80211.h>
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#include "ieee80211_i.h"
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mac80211_msg
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#define MAX_MSG_LEN 120
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DECLARE_EVENT_CLASS(mac80211_msg_event,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf),
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TP_STRUCT__entry(
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__vstring(msg, vaf->fmt, vaf->va)
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),
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TP_fast_assign(
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__assign_vstr(msg, vaf->fmt, vaf->va);
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),
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TP_printk("%s", __get_str(msg))
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);
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DEFINE_EVENT(mac80211_msg_event, mac80211_info,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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DEFINE_EVENT(mac80211_msg_event, mac80211_dbg,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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DEFINE_EVENT(mac80211_msg_event, mac80211_err,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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#endif /* !__MAC80211_MSG_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE trace_msg
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#include <trace/define_trace.h>
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#endif
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