From: Steven Rostedt (VMware) <rostedt@goodmis.org>
Date: Thu, 30 Mar 2017 01:40:49 +0000 (-0400)
Subject: ftrace: Return NULL at end of t_start() instead of calling t_hash_start()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2d71d98900b8a4bd58c3ca92e404d5e3701de874;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ftrace: Return NULL at end of t_start() instead of calling t_hash_start()

The loop in t_start() of calling t_next() will call t_hash_start() if the
pos is beyond the functions and enters the hash items. There's no reason to
check if p is NULL and call t_hash_start(), as that would be redundant.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 3165b7f840e6..421530831ddd 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3255,7 +3255,7 @@ static void *t_start(struct seq_file *m, loff_t *pos)
 	}
 
 	if (!p)
-		return t_hash_start(m, pos);
+		return NULL;
 
 	return iter;
 }