t <rostedt@goodmis.org> 1224768783 -0400
committer Ingo Molnar <mingo@elte.hu> 1224770420 +0200

ftrace: add ftrace warn on to disable ftrace

Add ftrace warn on to disable ftrace as well as report a warning.

[ Thanks to Andrew Morton for suggesting using the WARN_ON return value ]

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