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.
Signed-off-by: Tom Zanussi <tom.zanu...@linux.intel.com>
---
kernel/trace/trace_events.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 27963e2..ecb2609 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -624,17 +624,17 @@ 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));
}
--
1.7.11.4
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