ftrace: remove ftrace hash

The ftrace hash was used by the ftrace_daemon code. The record ip function
would place the calling address (ip) into the hash. The daemon would later
read the hash and modify that code.

The hash complicates the code. This patch removes it.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 3 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 333a5162149b..06951e229443 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -865,9 +865,6 @@ function_trace_call(unsigned long ip, unsigned long parent_ip)
         if (unlikely(!ftrace_function_enabled))
                 return;
 
-        if (skip_trace(ip))
-                return;
-
         pc = preempt_count();
         resched = need_resched();
         preempt_disable_notrace();