Messages in this thread Patch in this message | | | Date | Fri, 17 Apr 2009 16:10:38 GMT | From | tip-bot for Jeremy Fitzhardinge <> | Subject | [tip:tracing/core] tracing: avoid warnings from zero-arg tracepoints |
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Commit-ID: 76aa81118ddfbb3dc31533030cf3ec329dd067a6 Gitweb: http://git.kernel.org/tip/76aa81118ddfbb3dc31533030cf3ec329dd067a6 Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> AuthorDate: Thu, 16 Apr 2009 23:35:39 -0700 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Fri, 17 Apr 2009 17:52:26 +0200
tracing: avoid warnings from zero-arg tracepoints
Tracepoints with no arguments can issue two warnings:
"field" defined by not used "ret" is uninitialized in this function
Mark field as being OK to leave unused, and initialize ret.
[ Impact: fix false positive compiler warnings. ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: mathieu.desnoyers@polymtl.ca LKML-Reference: <1239950139-1119-5-git-send-email-jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
--- include/trace/ftrace.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 60c5323..39a3351 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -160,8 +160,8 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ static int \ ftrace_format_##call(struct trace_seq *s) \ { \ - struct ftrace_raw_##call field; \ - int ret; \ + struct ftrace_raw_##call field __attribute__((unused)); \ + int ret = 0; \ \ tstruct; \ \
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