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| author | Tom Zanussi <tom.zanussi@linux.intel.com> | 2013-06-29 00:08:04 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-07-01 20:34:25 -0400 |
| commit | a439059610ecd257dba29a612729132e470d118f (patch) | |
| tree | 514d63a781142a1422c656b703fee01c51ec564e /kernel/trace/trace_events.c | |
| parent | 3fe3d6193e7cd7b4dd2bde10772f048bdefea4ee (diff) | |
| download | linux-0-day-a439059610ecd257dba29a612729132e470d118f.tar.gz linux-0-day-a439059610ecd257dba29a612729132e470d118f.tar.xz | |
tracing: Simplify code for showing of soft disabled flag
Rather than enumerating each permutation, build the enable state
string up from the combination of states. This also allows for the
simpler addition of more states.
Link: http://lkml.kernel.org/r/9aff5af6dee2f5a40ca30df41c39d5f33e998d7a.1372479499.git.tom.zanussi@linux.intel.com
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events.c')
| -rw-r--r-- | kernel/trace/trace_events.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 903a0bf2685ec..7ee08b95c3845 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -638,17 +638,17 @@ event_enable_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) { struct ftrace_event_file *file = filp->private_data; - char *buf; + char buf[4] = "0"; - if (file->flags & FTRACE_EVENT_FL_ENABLED) { - if (file->flags & FTRACE_EVENT_FL_SOFT_DISABLED) - buf = "0*\n"; - else if (file->flags & FTRACE_EVENT_FL_SOFT_MODE) - buf = "1*\n"; - else - buf = "1\n"; - } else - buf = "0\n"; + if (file->flags & FTRACE_EVENT_FL_ENABLED && + !(file->flags & FTRACE_EVENT_FL_SOFT_DISABLED)) + strcpy(buf, "1"); + + if (file->flags & FTRACE_EVENT_FL_SOFT_DISABLED || + file->flags & FTRACE_EVENT_FL_SOFT_MODE) + strcat(buf, "*"); + + strcat(buf, "\n"); return simple_read_from_buffer(ubuf, cnt, ppos, buf, strlen(buf)); } |