Messages in this thread Patch in this message | | | From | Yuanhan Liu <> | Subject | [PATCH 1/4] tracing: introduce for_each_token macro | Date | Tue, 9 Nov 2010 17:12:44 +0800 |
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Introduce for_each_token macro to parse the trace event list.
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> --- kernel/trace/trace_events.c | 14 ++++++-------- 1 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 0725eea..fe15b7c 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -1218,6 +1218,11 @@ void trace_remove_event_call(struct ftrace_event_call *call) mutex_unlock(&event_mutex); } +#define for_each_token(token, buf) \ + for (token = strsep(&buf, ","); \ + token && *token; \ + token = strsep(&buf, ",")) + #define for_each_event(event, start, end) \ for (event = start; \ (unsigned long)event < (unsigned long)end; \ @@ -1430,14 +1435,7 @@ static __init int event_trace_init(void) &ftrace_event_format_fops); } - while (true) { - token = strsep(&buf, ","); - - if (!token) - break; - if (!*token) - continue; - + for_each_token(token, buf) { ret = ftrace_set_clr_event(token, 1); if (ret) pr_warning("Failed to enable trace event: %s\n", token); -- 1.7.2.3
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