From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>,
Frank Rowand <frowand.list@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Randy Dunlap <rdunlap@infradead.org>,
Namhyung Kim <namhyung@kernel.org>, Tim Bird <Tim.Bird@sony.com>,
Jiri Olsa <jolsa@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Tom Zanussi <tom.zanussi@linux.intel.com>,
Rob Herring <robh+dt@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alexey Dobriyan <adobriyan@gmail.com>,
Jonathan Corbet <corbet@lwn.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v5 14/22] tracing: Add NULL trace-array check in print_synth_event()
Date: Thu, 26 Dec 2019 23:06:37 +0900 [thread overview]
Message-ID: <157736919742.11126.13760002977641565928.stgit@devnote2> (raw)
In-Reply-To: <157736902773.11126.2531161235817081873.stgit@devnote2>
Add NULL trace-array check in print_synth_event(), because
if we enable tp_printk option, iter->tr can be NULL.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
0 files changed
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index dae2c25b209a..137fc50f2b35 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -833,7 +833,7 @@ static enum print_line_t print_synth_event(struct trace_iterator *iter,
fmt = synth_field_fmt(se->fields[i]->type);
/* parameter types */
- if (tr->trace_flags & TRACE_ITER_VERBOSE)
+ if (tr && tr->trace_flags & TRACE_ITER_VERBOSE)
trace_seq_printf(s, "%s ", fmt);
snprintf(print_fmt, sizeof(print_fmt), "%%s=%s%%s", fmt);
next prev parent reply other threads:[~2019-12-26 14:06 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-26 14:03 [PATCH v5 00/22] tracing: bootconfig: Boot-time tracing and Extra boot config Masami Hiramatsu
2019-12-26 14:04 ` [PATCH v5 01/22] bootconfig: Add Extra Boot Config support Masami Hiramatsu
2020-01-08 1:59 ` Steven Rostedt
2020-01-08 3:03 ` Steven Rostedt
2020-01-08 5:17 ` Masami Hiramatsu
2020-01-08 14:01 ` Steven Rostedt
2019-12-26 14:04 ` [PATCH v5 02/22] bootconfig: Load boot config from the tail of initrd Masami Hiramatsu
2019-12-26 14:04 ` [PATCH v5 03/22] tools: bootconfig: Add bootconfig command Masami Hiramatsu
2019-12-26 14:04 ` [PATCH v5 04/22] tools: bootconfig: Add bootconfig test script Masami Hiramatsu
2019-12-26 14:04 ` [PATCH v5 05/22] proc: bootconfig: Add /proc/bootconfig to show boot config list Masami Hiramatsu
2020-01-09 21:37 ` Steven Rostedt
2020-01-10 0:52 ` Masami Hiramatsu
2019-12-26 14:05 ` [PATCH v5 06/22] init/main.c: Alloc initcall_command_line in do_initcall() and free it Masami Hiramatsu
2019-12-26 14:05 ` [PATCH v5 07/22] bootconfig: init: Allow admin to use bootconfig for kernel command line Masami Hiramatsu
2019-12-26 14:05 ` [PATCH v5 08/22] bootconfig: init: Allow admin to use bootconfig for init " Masami Hiramatsu
2019-12-26 14:05 ` [PATCH v5 09/22] Documentation: bootconfig: Add a doc for extended boot config Masami Hiramatsu
2019-12-26 14:05 ` [PATCH v5 10/22] tracing: Apply soft-disabled and filter to tracepoints printk Masami Hiramatsu
2019-12-26 14:06 ` [PATCH v5 11/22] tracing: kprobes: Output kprobe event to printk buffer Masami Hiramatsu
2019-12-26 14:06 ` [PATCH v5 12/22] tracing: kprobes: Register to dynevent earlier stage Masami Hiramatsu
2019-12-26 14:06 ` [PATCH v5 13/22] tracing: Accept different type for synthetic event fields Masami Hiramatsu
2019-12-26 14:06 ` Masami Hiramatsu [this message]
2019-12-26 14:06 ` [PATCH v5 15/22] tracing/boot: Add boot-time tracing Masami Hiramatsu
2019-12-26 14:07 ` [PATCH v5 16/22] tracing/boot: Add per-event settings Masami Hiramatsu
2019-12-26 14:07 ` [PATCH v5 17/22] tracing/boot Add kprobe event support Masami Hiramatsu
2019-12-26 14:07 ` [PATCH v5 18/22] tracing/boot: Add synthetic " Masami Hiramatsu
2019-12-26 14:07 ` [PATCH v5 19/22] tracing/boot: Add instance node support Masami Hiramatsu
2019-12-26 14:07 ` [PATCH v5 20/22] tracing/boot: Add cpu_mask option support Masami Hiramatsu
2019-12-26 14:08 ` [PATCH v5 21/22] tracing/boot: Add function tracer filter options Masami Hiramatsu
2019-12-26 18:05 ` kbuild test robot
2019-12-27 2:56 ` Masami Hiramatsu
2019-12-26 14:08 ` [PATCH v5 22/22] Documentation: tracing: Add boot-time tracing document Masami Hiramatsu
2020-01-09 23:10 ` [PATCH v5 00/22] tracing: bootconfig: Boot-time tracing and Extra boot config Steven Rostedt
2020-01-10 15:30 ` Masami Hiramatsu
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